0000912562-23-000009 | 10-K | XBRL Viewer

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Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Dec. 31, 2022	Feb. 21, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	000-22462
Entity Registrant Name	GIBRALTAR INDUSTRIES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	16-1445150
Entity Address, Address Line One	3556 Lake Shore Road
Entity Address, Address Line Two	P.O. Box 2028
Entity Address, City or Town	Buffalo ,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14219-0228
City Area Code	716
Local Phone Number	826-6500
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	ROCK
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1.2
Entity Common Stock, Shares Outstanding		30,786,457
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the Registrant’s Definitive Proxy Statement to be filed for its 2023 Annual Meeting of Stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K.
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Central Index Key	0000912562

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2022
Audit Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Location	Boston, Massachusetts
Auditor Firm ID	42

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales:	$ 1,389,966	$ 1,339,783	$ 1,032,578
Cost of sales	1,071,272	1,049,772	776,235
Gross profit	318,694	290,011	256,343
Selling, general, and administrative expense	188,592	184,723	149,153
Intangible asset impairment	0	8,300	0
Income from operations	130,102	96,988	107,190
Interest expense, net	4,047	1,639	703
Other expense (income)	14,565	(4,213)	(1,272)
Income before taxes	111,490	99,562	107,759
Provision for income taxes	29,084	25,046	24,468
Income from continuing operations	82,406	74,516	83,291
Discontinued operations:
Income (loss) before taxes	0	1,479	(16,602)
Provision for income taxes	0	366	2,123
Income (loss) from discontinued operations	0	1,113	(18,725)
Net income	$ 82,406	$ 75,629	$ 64,566
Net earnings per share – Basic:
Income from continuing operations (in dollars per share)	$ 2.57	$ 2.27	$ 2.55
(Loss) income from discontinued operations (in dollars per share)	0	0.03	(0.57)
Net income (in dollars per share)	$ 2.57	$ 2.30	$ 1.98
Weighted average shares outstanding – Basic (in shares)	32,096	32,873	32,664
Net earnings per share – Diluted:
Income from continuing operations (in dollars per share)	$ 2.56	$ 2.25	$ 2.53
(Loss) income from discontinued operations (in dollars per share)	0	0.04	(0.57)
Net income (in dollars per share)	$ 2.56	$ 2.29	$ 1.96
Weighted average shares outstanding – Diluted (in shares)	32,192	33,054	32,918

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 82,406	$ 75,629	$ 64,566
Other comprehensive (loss) income:
Foreign currency translation adjustment	(5,022)	2,512	3,301
Adjustment to post-retirement benefit liability, net of tax	1,403	136	(371)
Other comprehensive (loss) income	(3,619)	2,648	2,930
Total comprehensive income	$ 78,787	$ 78,277	$ 67,496

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 17,608	$ 12,849
Accounts receivable, net of allowance of $3,746 and $3,738, respectively	217,156	236,444
Inventories, net	170,360	176,207
Prepaid expenses and other current assets	18,813	21,467
Total current assets	423,937	446,967
Property, plant, and equipment, net	109,584	96,885
Operating lease assets	26,502	18,120
Goodwill	512,363	510,942
Acquired intangibles	137,526	141,504
Other assets	701	483
Total assets	1,210,613	1,214,901
Current liabilities:
Accounts payable	106,582	172,286
Accrued expenses	73,721	67,993
Billings in excess of cost	35,017	46,711
Total current liabilities	215,320	286,990
Long-term debt	88,762	23,781
Deferred income taxes	47,088	40,278
Non-current operating lease liabilities	19,041	11,390
Other non-current liabilities	18,303	27,204
Stockholders’ equity:
Preferred stock, $0.01 par value; authorized 10,000 shares; none outstanding	0	0
Common stock, $0.01 par value; authorized 100,000 shares; 34,060 and 33,799 shares issued and outstanding in 2022 and 2021	340	338
Additional paid-in capital	322,873	314,541
Retained earnings	627,978	545,572
Accumulated other comprehensive (loss) income	(3,432)	187
Cost of 3,199 and 1,107 common shares held in treasury in 2022 and 2021	(125,660)	(35,380)
Total stockholders’ equity	822,099	825,258
Total liabilities and shareholders' equity	$ 1,210,613	$ 1,214,901

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for credit loss	$ 3,746	$ 3,738
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000
Common stock, shares issued (in shares)	34,060,000	33,799,000
Common stock, shares outstanding (in shares)	34,060,000	33,799,000
Treasury stock, shares (in shares)	3,199,000	1,107,000

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net income	$ 82,406	$ 75,629	$ 64,566
Income (loss) from discontinued operations	0	1,113	(18,725)
Income from continuing operations	82,406	74,516	83,291
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	26,167	31,966	20,915
Intangible asset impairment	0	8,300	0
Held for sale valuation allowance	13,990	0	0
Stock compensation expense	8,334	8,652	8,173
Exit activity costs, non-cash	2,276	1,193	493
Provision for deferred income taxes	6,337	2,968	3,786
Other, net	1,506	1,570	63
Changes in operating assets and liabilities (excluding the effects of acquisitions):
Accounts receivable	32,754	(41,887)	2,277
Inventories	14,377	(85,763)	(5,719)
Other current assets and other assets	2,062	(426)	5,467
Accounts payable	(76,260)	38,367	(1,160)
Accrued expenses and other non-current liabilities	(11,258)	(14,384)	(44,570)
Net cash provided by operating activities of continuing operations	102,691	25,072	73,016
Net cash (used in) provided by operating activities of discontinued operations	0	(2,002)	16,088
Net cash provided by operating activities	102,691	23,070	89,104
Cash Flows from Investing Activities
Purchases of property, plant, and equipment, net	(20,062)	(17,491)	(12,991)
Acquisitions, net of cash acquired	(51,621)	4,143	(313,686)
Net proceeds from sale of business	0	38,062	2,000
Net cash (used in) provided by investing activities of continuing operations	(71,683)	24,714	(324,677)
Net cash used in investing activities of discontinued operations	0	(176)	(2,033)
Net cash (used in) provided by investing activities	(71,683)	24,538	(326,710)
Cash Flows from Financing Activities
Long-term debt payments	(138,000)	(120,636)	0
Proceeds from long-term debt	204,500	59,500	85,000
Payment of debt issuance costs	(2,013)	0	0
Purchase of common stock at market prices	(89,494)	(6,497)	(6,656)
Net proceeds from issuance of common stock	0	1,021	1,119
Net cash (used in) provided by financing activities	(25,007)	(66,612)	79,463
Effect of exchange rate changes on cash	(1,242)	(201)	(1,166)
Net increase (decrease) in cash and cash equivalents	4,759	(19,205)	(159,309)
Cash and cash equivalents at beginning of year	12,849	32,054	191,363
Cash and cash equivalents at end of year	$ 17,608	$ 12,849	$ 32,054

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive (Loss) Income	Accumulated Other Comprehensive (Loss) Income Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock
Balance, shares at Dec. 31, 2019			33,192,000						906,000
Balance at Dec. 31, 2019	$ 673,964	$ (291)	$ 332	$ 295,582	$ 405,668	$ (291)	$ (5,391)	$ 0	$ (22,227)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	64,566				64,566
Foreign currency translation adjustment	3,301						3,301
Adjustment to post-retirement healthcare benefit liability, net of taxes	(371)						(371)
Stock compensation expense	8,173			8,173
Net settlement of restricted stock units, shares			296,000						122,000
Net settlement of restricted stock units	$ (6,656)		$ 4	(4)					$ (6,656)
Issuance of restricted stock, shares			4,000
Stock options exercised, shares	75,909		76,000
Stock options exercised	$ 1,119			1,119
Balance, shares at Dec. 31, 2020			33,568,000						1,028,000
Balance at Dec. 31, 2020	743,805		$ 336	304,870	469,943		(2,461)		$ (28,883)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	75,629				75,629
Foreign currency translation adjustment	2,512						2,512
Adjustment to post-retirement healthcare benefit liability, net of taxes	136						136
Stock compensation expense	8,652			8,652
Net settlement of restricted stock units, shares			192,000						79,000
Net settlement of restricted stock units	(6,497)		$ 2	(2)					$ (6,497)
Issuance of restricted stock, shares			3,000
Stock options exercised, shares			36,000
Stock options exercised	1,021			1,021
Balance, shares at Dec. 31, 2021			33,799,000						1,107,000
Balance at Dec. 31, 2021	825,258		$ 338	314,541	545,572		187		$ (35,380)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	82,406				82,406
Foreign currency translation adjustment	(5,022)						(5,022)
Adjustment to post-retirement healthcare benefit liability, net of taxes	1,403						1,403
Stock compensation expense	8,334			8,334
Net settlement of restricted stock units, shares			245,000						95,000
Net settlement of restricted stock units	(4,404)		$ 2	(2)					$ (4,404)
Issuance of restricted stock, shares			16,000
Common stock repurchased under stock repurchase program (in shares)									1,997,000
Common stock repurchased under stock repurchase program	$ (85,876)								$ (85,876)
Stock options exercised, shares	0
Balance, shares at Dec. 31, 2022			34,060,000						3,199,000
Balance at Dec. 31, 2022	$ 822,099		$ 340	$ 322,873	$ 627,978		$ (3,432)		$ (125,660)

Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Minimum pension and post retirement benefit plan adjustments, net of taxes	$ (449)	$ 43	$ (116)

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Summary Of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of consolidation

The consolidated financial statements include the accounts of Gibraltar Industries, Inc. and subsidiaries (the "Company"). All intercompany accounts and transactions have been eliminated in consolidation.

Use of estimates

The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates due to uncertainty in the current economic environment.

Segment Reporting

The Company has four reportable segments: Renewables, Residential, Agtech and Infrastructure. In 2021, the Company's former Renewable Energy and Conservation segment was divided into two segments, Renewables and Agtech. For further disclosure regarding the Company's reportable segments, refer to Note 20 "Segment Information."

Revenue recognition

Revenue is recognized when, or as, the Company transfers control of promised products or services to a customer in an amount that reflects the consideration the Company expects to be entitled in exchange for transferring those products or services.

Performance obligations satisfied at a point in time and significant judgments

Revenue from contracts with customers is recognized when the Company transfers control of the promised product at a point in time, which is determined when the customer has legal title and the significant risks and rewards of ownership of the asset, and the Company has a present right to payment for the product. The Company allocates the transaction price, which is generally the quoted price per terms of the contract and the consideration the Company expects to receive, to each performance obligation. These products are generally sold with rights of return and these contracts may provide other credits or incentives, which are accounted for as variable consideration. Sales returns, allowances, and customer incentives, including rebates, are treated as reductions to the sales transaction price and based largely on an assessment of all information (i.e., historical, current and forecasted) that is reasonably available to the Company, and estimated at contract inception and updated at the end of each reporting period as additional information becomes available.

Performance obligations satisfied over time and significant judgments

For a contract to construct an asset that the customer controls as it is being created or enhanced, or a promise to provide a product that has no alternative use to the Company and the Company has enforceable rights to payment, the Company recognizes revenue over time. For the contracts to construct a certain asset, the Company determines that the customer controls the asset while it is being constructed. For the contracts for products that have no alternative use and for which the Company has an enforceable right to payment, the Company identifies these products as products that are not a standard inventory item or the Company cannot readily direct the product to another customer for use without incurring a significant economic loss, or significant costs to rework the product.

The Company determines the transaction price for each contract based on the consideration the Company expects to receive for the promised products and services under the entire contract, which is generally the stated contract price based on an expected cost plus a margin.

For the above contracts with customers with respect to which the Company satisfies a performance obligation over time, the Company recognizes revenue based on the extent of progress towards completion of the performance obligation using the cost-to-cost measure of progress. Under the cost-to-cost measure of progress, the extent of progress toward completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recognized proportionally as costs are incurred. Costs to fulfill a contract include all direct costs related to contract performance. Selling and administrative expenses are

charged to operations as incurred. Provision for loss on an uncompleted performance obligation is recognized in the period in which such loss is determined.

The Company regularly reviews the progress under the cost-to-cost method and any adjustments are recognized as necessary. Changes in estimates are recognized as they become known using the cumulative catch-up basis.

The Company also recognizes revenues from services contracts over time. The Company recognizes revenue over time during the term of the agreement as the customer is simultaneously receiving and consuming the benefits provided throughout the Company's performance. Therefore, due to control transferring over time, the Company recognizes revenue on a straight-line basis throughout the contract period.

Contract assets and contract liabilities

Contract assets primarily represents revenue recognized for performance obligations that have been satisfied but for which amounts receivable have not been billed. These are included as current assets and included within accounts receivable on the Company's consolidated balance sheets. Contract liabilities include payments received from customers in advance of the satisfaction of performance obligations for a contract. The Company does not consider contract advances to be significant financing components as the intent of these payments in advance are for reasons other than providing a significant financing benefit and are customary in the Company's industry. Unearned revenue relates to payments received in advance of performance under the contract and is recognized when the Company performs under the contract. Unearned revenue is presented within accrued expenses in the Company's consolidated balance sheets.

Costs to obtain a contract with a customer

The Company recognizes an asset for the incremental costs of obtaining a contract with a customer if the Company expects the benefit of those costs to be longer than one year. If the amortization period of the asset is one year or less, the Company recognizes the incremental costs of obtaining a contract as an expense when incurred. These incremental costs include, but are not limited to, sales commissions incurred to obtain a contract with a customer.

Cash and cash equivalents

All highly liquid investments with a maturity of three months or less are considered cash equivalents.

Accounts receivable and allowance for doubtful accounts and contract assets

Accounts receivable are composed of trade and contract receivables recorded at either the invoiced amount or costs in excess of billings, are expected to be collected within one year, and do not bear interest.

The Company’s expected loss allowance methodology for accounts receivable and costs in excess of billings (collectively "accounts receivable") is developed using historical collection experience, current and future economic and market conditions, and a review of the current status of customers' accounts receivables. The Company is exposed to credit losses through sales of products and services. Due to the short-term nature of such accounts receivable, the estimated amount of accounts receivable that may not be collected is based on aging of the accounts receivable balances. Additionally, specific allowance amounts are established to record the appropriate provision for customers that no longer share risk characteristics similar with other accounts receivable. The Company’s monitoring activities include timely account reconciliation, dispute resolution, payment confirmation, consideration of customers' financial condition and macroeconomic conditions. Balances are written off when determined to be uncollectible after all means of collection have been exhausted and the potential for recovery is considered remote.

Estimates are used to determine the allowance. These estimates are based on assessment of anticipated payment and all other historical, current and future information that is reasonably available.

The following table summarizes activity recorded within the allowance for doubtful accounts and contract assets balances for the years ended December 31 (in thousands):


	2022		2021		2020
Beginning balance	$	3,738	$	3,529	$	5,951
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings at January 1, 2020	—		—		385
Bad debt expense, net of recoveries	1,221		898		1,321
Accounts written off against allowance and other adjustments	(1,213)		(689)		(4,128)
Ending balance	$	3,746	$	3,738	$	3,529

Concentrations of credit risk in accounts receivable are limited to those from significant customers that are believed to be financially sound. As of December 31, 2022 and 2021, the Company's most significant customer is a home improvement retailer. The home improvement retailer purchases from the Residential segment. Accounts receivable as a percentage of consolidated accounts receivable from the home improvement retailer was 14% as of December 31, 2022 and 2021. Net sales to the home improvement retailer as a percentage of consolidated net sales were 14%, 13%, and 14% during the years ended December 31, 2022, 2021 and 2020, respectively.

Inventories

Inventories are valued at the lower of cost, determined using the first-in, first-out method, or net realizable value. Shipping and handling costs are recognized as a component of cost of sales.

Property, plant, and equipment

Property, plant, and equipment are stated at cost and depreciated over their estimated useful lives using the straight-line method. Interest is capitalized in connection with construction of qualified assets. Expenditures that exceed an established dollar threshold and that extend the useful lives of assets are capitalized, while repair and maintenance costs are expensed as incurred. The estimated useful lives of land improvements, buildings, and building improvements are 15 to 40 years, while the estimated useful lives for machinery and equipment are 3 to 20 years.

The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):


	2022		2021		2020
Depreciation expense	$	14,583	$	13,110	$	11,252

Acquisition related assets and liabilities

Accounting for the acquisition of a business as a purchase transaction requires an allocation of the purchase price to the assets acquired and the liabilities assumed in the transaction at their respective estimated fair values. The most complex estimations of individual fair values are those involving long-lived assets, such as property, plant, and equipment and intangible assets. The Company uses all available information to make these fair value determinations and engages independent valuation specialists to assist in the fair value determination of the acquired long-lived assets.

Goodwill and other intangible assets

The Company tests goodwill for impairment at the reporting unit level on an annual basis at October 31, or more frequently if an event occurs, or circumstances change, that indicate that the fair value of a reporting unit could be below its carrying value. The reporting units are at the component level, or one level below the operating segment level. Goodwill is assigned to each reporting unit as of the date the reporting unit is acquired.

The Company may elect to perform a qualitative assessment that considers economic, industry and company-specific factors for some or all of the Company's selected reporting units. If, after completing the assessment, it is determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, the Company proceeds to a quantitative test. The Company may also elect to perform a quantitative test instead of a qualitative test for any or all of the Company's reporting units.

The quantitative impairment test consists of comparing the fair value of a reporting unit, determined using two valuation techniques, to its carrying value. If the carrying value of the reporting unit exceeds its fair value, goodwill is

considered impaired, and a loss measured by the excess of the carrying value of the reporting unit over the fair value of the reporting unit must be recorded.

The Company also tests its indefinite-lived intangible assets for impairment on an annual basis as of October 31, or more frequently if an event occurs, or circumstances change, that indicate that the fair value of an indefinite-lived intangible asset could be below its carrying value. The impairment test consists of comparing the fair value of the indefinite-lived intangible asset, determined using discounted cash flows on a relief-from-royalty basis, with its carrying amount. An impairment loss would be recognized for the carrying amount in excess of its fair value. Acquired identifiable intangible assets are recorded at cost. Identifiable intangible assets with finite useful lives are amortized over their estimated useful lives. For additional disclosure of the Company's goodwill and other intangible assets refer to Note 7 "Goodwill and Related Intangible Assets."

Impairment of long-lived assets

Long-lived assets, including acquired identifiable intangible assets with finite useful lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of those assets may not be recoverable. In specific situations, when the Company has selected individual assets to be sold or scrapped, the Company obtains market value data for those specific assets and measures and records the impairment loss based on such data. Otherwise, the Company uses undiscounted cash flows to determine whether impairment exists and measures any impairment loss by approximating fair value using acceptable valuation techniques, including discounted cash flow models and third-party appraisals. For additional disclosure on impairment of the Company's long-lived assets refer to Note 7 "Goodwill and Related Intangible Assets," Note 14 "Held for Sale and Discontinued Operations" and Note 15 "Exit Activity Costs and Asset Impairments."

Leases

The Company determines if an agreement is, or contains, a lease at the inception of the agreement. At lease commencement, the Company recognizes a right-of-use asset and a lease liability for leases with terms greater than twelve months. The initial lease liability is recognized at the present value of remaining lease payments over the lease term. Leases with an initial term of twelve months or less are not recorded on the Company's consolidated balance sheets. The Company recognizes lease expense for operating leases on a straight-line basis over the lease term. The Company combines lease and non-lease components, such as common area maintenance costs, in calculating the related asset and lease liabilities for all underlying asset groups. Operating lease cost is included in income from operations and includes short-term leases and variable lease costs which are immaterial.

Deferred charges

Deferred charges associated with initial costs incurred to enter into new debt arrangements are included as a component of long-term debt and are amortized as a part of interest expense over the terms of the associated debt agreements.

Advertising

The Company expenses advertising and marketing costs as incurred. For the years ended December 31, 2022, 2021 and 2020, advertising and marketing costs were $10.9 million, $8.0 million, and $7.2 million, respectively.

Foreign currency transactions and translation

The assets and liabilities of the Company’s foreign subsidiaries are translated into U.S. dollars at the rate of exchange in effect at the balance sheet date. Income and expense items are translated at the average exchange rates prevailing during the period.

Income taxes

The provision for income taxes is determined using the asset and liability approach. Under this approach, deferred income taxes represent the expected future tax consequences of temporary differences between the carrying amounts and tax basis of assets and liabilities. The Company records a valuation allowance to reduce deferred tax assets when uncertainty exists regarding their realization.

Equity-based compensation

The Company measures the cost of equity-based compensation based on grant date fair value and recognizes the cost over the period in which the employee is required to provide service in exchange for the award reduced by forfeitures. Equity-based compensation consists of grants of stock options, deferred stock units, common stock, restricted stock units, and performance stock units. Equity-based compensation expense is included as a component of selling, general, and administrative expenses.

Recent accounting pronouncements

The Company considers the applicability and impact of ASUs, and ASUs effective in or after 2022, respectively, were assessed and determined to be either not applicable, or had or are expected to have minimal impact on the Company's consolidated financial statements and related disclosures.

Revenue (Notes)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Revenue

REVENUE

Sales includes revenue from contracts with customers for designing, engineering, manufacturing and installation of solar racking systems; electrical balance of systems; roof and foundation ventilation products; centralized mail systems and electronic package solutions; retractable awnings; gutter guards; rain dispersion products; trims and flashings and other accessories; designing, engineering, manufacturing and installation of greenhouses; structural bearings; expansion joints; pavement sealant; elastomeric concrete; and bridge cable protection systems.

Refer to Note 20 "Segment Information" for additional information related to revenue recognized by timing of transfer of control by reportable segment.

Payment terms and conditions vary by contract, although terms generally include a requirement of payment within a range from 30 to 60 days, or in certain cases, up front deposits. In circumstances where the timing of revenue recognition differs from the timing of invoicing, the Company has determined that the Company's contracts generally do not include a significant financing component. Taxes collected from customers, which are subsequently remitted to governmental authorities, are excluded from sales.

As of December 31, 2022, the Company's remaining performance obligations are part of contracts that have an original expected duration of one year or less. Additionally, as of December 31, 2022 and 2021, there were no assets recognized related to incremental costs of obtaining a contract with a customer as the benefits of these costs are not expected to exceed one year.

Contract assets consist of costs in excess of billings presented within accounts receivable in the Company's consolidated balance sheets. Contract liabilities consist of billings in excess of cost, classified as current liabilities, and unearned revenue, presented within accrued expenses, in the Company's consolidated balance sheets.

The following table presents the ending and beginning balances of costs in excess of billings, billings in excess of cost and unearned revenue, respectively, as of December 31 (in thousands):


	2022	2021		2020
Costs in excess of billings	41,732	$	54,437	$	26,915
Billings in excess of cost	(35,017)	(46,711)		(34,702)
Unearned revenue	(4,572)	(3,681)		(21,325)

Revenue recognized during the years ended December 31, 2022, 2021, and 2020 that was in contract liabilities at the beginning of the respective periods was $44.4 million, $53.0 million, and $57.8 million, respectively.

The decreases in costs in excess of billings and billings in excess of cost as of December 31, 2022 compared to December 31, 2021, respectively, were primarily due to decline in volume in the Renewables and Agtech segments in 2022 compared to 2021. The increase in costs in excess of billings as of December 31, 2021 compared to December 31, 2020 was primarily due to the timing of the Company's right to invoice customers for performance satisfied by the Company for significant contracts in the Renewables and Agtech segments near the end of 2021.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI https://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130554-203045

+ Details

Accounts Receivable

12 Months Ended

Dec. 31, 2022

Receivables [Abstract]

Accounts Receivable

ACCOUNTS RECEIVABLE, NET

Accounts receivable at December 31 consisted of the following (in thousands):


	2022		2021
Trade accounts receivable	$	179,170	$	185,745
Costs in excess of billings	41,732		54,437
Total accounts receivables	220,902		240,182
Less allowance for doubtful accounts	(3,746)		(3,738)
Accounts receivable, net	$	217,156	$	236,444

Refer to Note 3 "Revenue" concerning the Company's costs in excess of billings.

Inventories

12 Months Ended

Dec. 31, 2022

Inventory Disclosure [Abstract]

Inventories

INVENTORIES

Inventories at December 31 consisted of the following (in thousands):


	2022		2021
Raw material	$	111,187	$	135,558
Work-in-process	17,944		5,858
Finished goods	47,523		39,256
Gross inventory	176,654		180,672
Less reserves	(6,294)		(4,465)
Total inventories	$	170,360	$	176,207

The Company's gross inventory balances are reduced by reserves for excess, obsolete and slow moving inventory and estimates for determining net realizable value of the inventory that are reported on a net basis on the Company's consolidated balance sheets.

The following table summarizes activity recorded within the reserve for excess, obsolete and slow moving inventory for the years ended December 31 (in thousands):


	2022		2021		2020
Beginning balance	$	4,400	$	4,161	$	3,463
Excess, obsolete and slow moving inventory expense	1,582		215		355
Scrapped inventory and other adjustments	197		24		343
Ending balance	$	6,179	$	4,400	$	4,161

Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment

PROPERTY, PLANT, AND EQUIPMENT

Components of property, plant, and equipment at December 31 consisted of the following (in thousands):


	2022		2021
Land and land improvements	$	4,704	$	4,634
Building and improvements	43,416		42,526
Machinery and equipment	223,843		194,015
Construction in progress	13,065		20,293
Property, plant, and equipment, gross	285,028		261,468
Less: accumulated depreciation	(175,444)		(164,583)
Property, plant, and equipment, net	$	109,584	$	96,885

Acquisitions

12 Months Ended

Dec. 31, 2022

Business Combinations [Abstract]

Acquisitions

ACQUISITIONS

2022 Acquisitions

On August 22, 2022, the Company purchased all the issued and outstanding membership interests of Quality Aluminum Products ("QAP"), a manufacturer of aluminum and steel products including soffit, fascia, trim coil, rain carrying products and aluminum siding. The results of QAP have been included in the Company's consolidated financial results since the date of acquisition within the Company's Residential segment. The preliminary purchase consideration for the acquisition of QAP was $52.1 million, which includes a preliminary working capital adjustment and certain other adjustments provided for in the membership interest purchase agreement.

The purchase price for the acquisition was preliminarily allocated to the assets acquired and liabilities assumed based upon their respective fair values estimated as of the date of acquisition. The Company has commenced the process to confirm the existence, condition, and completeness of the assets acquired and liabilities assumed to establish fair value of such assets and liabilities and to determine the amount of goodwill to be recognized as of the date of acquisition. Due to the timing of the acquisition, the Company continues to gather information supporting the acquired assets and assumed liabilities. Accordingly, all amounts recorded are provisional. These provisional amounts are subject to change if new information is obtained concerning facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. The final determination of the fair value of certain assets and liabilities will be completed within a measurement period of up to one year from the date of acquisition. The final values may also result in changes to depreciation and amortization expense related to certain assets such as property, plant, and equipment and acquired intangible assets. The preliminary excess consideration was recorded as goodwill and approximated $3.6 million, all of which is deductible for tax purposes. Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the domestic building products markets. The final purchase price allocation will be completed no later than the third quarter of fiscal year 2023.

The preliminary allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):


Cash	$	1,018
Working capital	23,759
Property, plant, and equipment	8,486
Acquired intangible assets	14,700
Other assets	1,813
Other liabilities	(1,295)
Goodwill	3,604
Fair value of purchase consideration	$	52,085

The intangible assets acquired in this acquisition consisted of the following as of the date of acquisition (in thousands):


	Fair Value		Weighted-Average Amortization Period
Trademarks	$	2,800	Indefinite


Customer relationships	11,900		12 years
Total	$	14,700

2020 Acquisitions

During the year ended December 31, 2020, the Company acquired five businesses in separate transactions, described further below, two of which are included within the Company's Renewables segment, two in the Company's Agtech segment, and one in the Company's Residential segment. The purchase consideration for each acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values.

On December 31, 2020, the Company purchased all the outstanding membership interests of TerraSmart LLC and TerraTrak LLC (collectively, "TerraSmart"), a leading provider of screw-based, ground-mount solar racking technology, particularly used for solar projects installed on challenging terrain. The results of TerraSmart have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewables segment. The purchase consideration for the acquisition of TerraSmart was $223.9 million, which includes a working capital adjustment and certain other adjustments provided for in the equity purchase agreement.

The purchase price for the TerraSmart acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values estimated as of the date of acquisition. The Company has completed the process to confirm the existence, condition and completeness of assets acquired and liabilities assumed to establish fair values of the assets acquired and liabilities assumed to determine the amount of goodwill to be recognized as of the date of acquisition. The final determination of the fair value of certain assets and liabilities was completed within a measurement period of up to one year from the date of acquisition. The excess consideration was recorded as goodwill and approximated $141.0 million, all of which is deductible for tax purposes. Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the domestic solar energy market.

The allocation of the TerraSmart purchase consideration to the estimated fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):


Cash	$	1,491
Working capital	5,569
Property, plant, and equipment	11,446
Acquired intangible assets	64,150
Other assets	1,854
Other liabilities	(1,640)
Goodwill	140,997
Fair value of purchase consideration	$	223,867

The intangible assets acquired in the TerraSmart acquisition consisted of the following as of the date of acquisition (in thousands):


	Fair Value		Weighted-Average Amortization Period
Trademarks	$	20,830	Indefinite

Technology	1,940		12 years
Customer relationships	35,110		12 years

Backlog	6,270		Less than 1 year
Total	$	64,150

On December 11, 2020, the Company purchased all the outstanding stock of Sunfig Corporation ("Sunfig"), a provider of software solutions that optimize solar energy investments through upstream design, performance and financial modeling, for a purchase consideration of $3.8 million, which includes a working capital adjustment and certain other adjustments provided for in the stock purchase agreement. The results of Sunfig have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewables segment. The excess consideration was recorded as goodwill and approximated $3.5 million, all of which is deductible for tax purposes.

On October 15, 2020, the Company purchased substantially all of the assets of Architectural Mailboxes LLC ("Architectural Mailboxes"), a complementary addition to Gibraltar's existing mail and package solutions business within the Residential segment, for a purchase consideration of $26.9 million, which includes a working capital adjustment and certain other adjustments provided for in the asset purchase agreement. The results of Architectural Mailboxes have been included in the Company's consolidated financial results since the date of acquisition within the Company's Residential segment. The excess consideration was recorded as goodwill and approximated $7.4 million, all of which is deductible for tax purposes.

On February 13, 2020, the Company purchased substantially all of the assets of Delta Separations, LLC, a California limited liability company, and Teaching Tech, LLC, a California limited liability company (collectively, "Delta Separations") for a purchase consideration of $47.1 million, which includes a working capital adjustment and certain other adjustments provided for in the asset purchase agreement. Delta Separations was a privately-held engineering company primarily engaged in the assembly and sale of centrifugal ethanol-based extraction systems. The results of Delta Separations have been included in the Company's consolidated financial results since the date of acquisition within the Company's Agtech segment. The excess consideration was recorded as goodwill and approximated $32.2 million, all of which is deductible for tax purposes.

On January 15, 2020, the Company purchased substantially all of the assets of Thermo Energy Systems Inc. ("Thermo"), a Canadian-based, privately held provider of commercial greenhouse solutions in North America providing growing infrastructure for the plant based organic food market, for a purchase consideration of $7.3 million. The results of Thermo have been included in the Company's consolidated financial results since the date of acquisition within the Company's Agtech segment. The excess consideration recorded as goodwill approximated $19.1 million, all of which is deductible for tax purposes.

The allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed in the acquisitions of Sunfig, Architectural Mailboxes, Delta Separations and Thermo is as follows as of the respective date of the acquisition (in thousands):


Cash	$	179
Working capital	(15,377)
Property, plant, and equipment	1,740
Acquired intangible assets	38,066
Other current assets	1,528
Other assets	2,381
Other liabilities	(5,576)
Goodwill	62,161
Fair value of purchase consideration	$	85,102

Goodwill represents future economic benefits arising from other assets acquired that could not be individually identified including workforce additions, growth opportunities, and increased presence in the respective markets.

The intangible assets acquired in the acquisitions of Sunfig, Architectural Mailboxes, Delta Separations and Thermo consisted of the following as of the respective date of the acquisition (in thousands):


	Fair Value		Weighted-Average Amortization Period
Trademarks	$	8,100	Indefinite
Trademarks	1,177		3 years
Technology	8,345		5 - 15 years
Customer relationships	18,480		11 - 13 years
Non-compete agreements	1,036		5 years
Backlog	928		Less than 1 year
Total	$	38,066

The acquisition of QAP was financed primarily through borrowings under the Company's revolving credit facility. The acquisition of TerraSmart was financed through a combination of cash on hand and borrowings under the Company's revolving credit facility. The acquisitions of Sunfig, Architectural Mailboxes, Delta Separations, and Thermo were funded from cash on hand.

The Company recognized costs as a component of cost of sales related to the sale of inventory at fair value as a result of allocating the purchase price of recent acquisitions. The Company also incurred certain acquisition-related costs composed of legal and consulting fees. These costs were recognized as a component of selling, general, and administrative expenses in the consolidated statements of operations.

The acquisition-related costs consisted of the following for the years ended December 31 (in thousands):


	2022		2021		2020
Cost of sales	$	1,427	$	—	$	634
Selling, general and administrative costs	545		949		3,230
Total acquisition related costs	$	1,972	$	949	$	3,864

Goodwill and Related Intangible Assets

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Related Intangible Assets

GOODWILL AND RELATED INTANGIBLE ASSETS

Goodwill

The changes in the carrying amount of goodwill for the years ended December 31 were as follows (in thousands):


	Renewables		Residential		Agtech		Infrastructure		Total
Balance at December 31, 2020	$	192,527	$	205,452	$	84,622	$	31,678	$	514,279

Adjustments to prior year acquisitions	(2,433)		—		323		—		(2,110)

Foreign currency translation	(1,414)		—		187		—		(1,227)
Balance at December 31, 2021	188,680		205,452		85,132		31,678		510,942
Acquired goodwill	—		3,604		—		—		3,604

Adjustment to prior year acquisition	904		—		—		—		904
Foreign currency translation	(1,554)		—		(1,533)		—		(3,087)
Balance at December 31, 2022	$	188,030	$	209,056	$	83,599	$	31,678	$	512,363

Goodwill is recognized net of accumulated impairment losses of $133.2 million as of December 31, 2022 and 2021, respectively. No goodwill impairment charges were recognized by the Company during 2022 or 2021.

Annual and Interim Impairment Testing

The Company tests goodwill and indefinite-lived intangible assets for impairment on an annual basis as of October 31 and at interim dates when indicators of impairment are present. In 2022, 2021 and 2020, no indicators of impairment were identified as of interim dates; therefore, no interim tests were performed.

During the October 31, 2022 impairment test, the Company conducted a quantitative analysis for all eight of the Company’s reporting units. The quantitative impairment test consists of comparing the fair value of a reporting unit with its carrying value including goodwill. The fair value of each reporting unit evaluated under the quantitative test was determined using two valuation techniques: an income approach and a market approach. Each valuation approach relies on significant assumptions including a weighted average cost of capital ("WACC") based upon the capital structure of market participants in the Company’s peer groups, projected revenue growth, forecasted cash flows, and earnings multiples based on the market value of the Company and market participants within its peer groups.

As a result of the Company's annual testing for 2022, 2021 and 2020, none of the reporting units with goodwill as of the testing date had carrying values in excess of their fair values.

Acquired Intangible Assets

Acquired intangible assets consisted of the following (in thousands):


	December 31, 2022				December 31, 2021
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	55,500	$	—	$	52,700	$	—
Finite-lived intangible assets:
Trademarks	5,448		4,481		5,521		4,011
Unpatented technology	34,163		22,037		38,474		20,656
Customer relationships	115,125		46,557		108,591		39,832
Non-compete agreements	2,371		2,006		2,686		1,969
Backlog	—		—		7,200		7,200
	157,107		75,081		162,472		73,668
Total acquired intangible assets	$	212,607	$	75,081	$	215,172	$	73,668

The Company did not recognize impairment charges related to intangible assets during the year ended December 31, 2022. During the year ended December 31, 2021, the Company recognized impairment charges of $8.3 million related to indefinite-lived trademark intangible assets due to a rebranding initiative that resulted in the discontinuation of certain indefinite-lived trademarks in the Company's Agtech segment.

The Company recognized amortization expense related to the definite-lived intangible assets. The following table summarizes amortization expense for the years ended December 31 (in thousands):


	2022		2021		2020
Amortization expense	$	11,584	$	18,856	$	9,663

Amortization expense related to acquired intangible assets for the next five years ended December 31 is estimated as follows (in thousands):


	2023		2024		2025		2026		2027
Amortization expense	$	11,102	$	10,922	$	10,782	$	9,370	$	7,728

Accrued Expenses

12 Months Ended

Dec. 31, 2022

Accrued Liabilities, Current [Abstract]

Accrued Expenses

ACCRUED EXPENSES

Accrued expenses at December 31 consisted of the following (in thousands):


	2022		2021
Compensation	$	17,010	$	15,293
Customer rebates	16,768		15,253
Current operating lease liability	8,620		7,239
Insurance	6,440		7,310

Accrued warranties	6,251		5,686
Interest and taxes	5,696		5,463
Unearned revenue	4,572		3,681

Current portion of MSPP liabilities	2,267		2,947
Other	6,097		5,121
Total accrued expenses	$	73,721	$	67,993

Accrued expenses for insurance are primarily for general liability, workers’ compensation and employee healthcare policies for which the Company is self-insured up to certain per-occurrence and aggregate limits. The amounts

accrued represent the Company's best estimates of the probable amount of claims to be paid. Differences between the amounts accrued and the amount that may be reasonably possible of payment are not material. Accrued expenses for unearned revenue primarily relate to up-front customer deposits received on contracts for goods and services to be provided by the Company as further discussed in Note 3 "Revenue." The current portion of Management Stock Purchase Plan liabilities ("MSPP liabilities") represents the Company's equity-based awards that are settled in cash, further described in Note 12 "Equity-Based Compensation."

Debt

12 Months Ended

Dec. 31, 2022

Long-Term Debt, Unclassified [Abstract]

Debt

DEBT

Long-term debt consisted of the following (in thousands):


	December 31, 2022		December 31, 2021
Revolving credit facility	$	91,000	$	24,500
Less unamortized debt issuance costs	(2,238)		(719)
Total debt	$	88,762	$	23,781

Revolving Credit Facility

On December 8, 2022, the Company entered into a Credit Agreement (the "Credit Agreement"), and concurrently with entering into the Credit Agreement, the Company paid off all amounts owed under the Sixth Amended and Restated Credit Agreement dated as of January 24, 2019, and which was terminated without any prepayment penalties. The Credit Agreement provides for a revolving credit facility and letters of credit in an aggregate amount equal to $400 million. The Company can request additional financing to increase the revolving credit facility to $700 million or enter into a term loan of up to $300 million subject to conditions set forth in the Credit Agreement. The Credit Agreement contains two financial covenants. As of December 31, 2022, the Company was in compliance with all financial covenants. The Credit Agreement terminates on December 8, 2027.

Interest rates on the revolving credit facility under the Credit Agreement bear interest, at the Company’s option, at a rate equal to the applicable margin plus (a) a base rate, (b) a daily simple secured overnight financing rate ("SOFR") rate, (c) a term SOFR rate or (d) for certain foreign currencies, a foreign currency rate, in each case subject to a 0% floor. Through March 31, 2023, the Credit Agreement has an initial applicable margin of 0.125% for base rate loans and 1.125% for SOFR and alternative currency loans. Thereafter, the applicable margin ranges from 0.125% to 1.00% for base rate loans and from 1.125% to 2.00% for SOFR and alternative currency loans based on the Company’s Total Net Leverage Ratio, as defined in the Credit Agreement. In addition, the Credit Agreement is subject to an annual commitment fee, payable quarterly, which is initially 0.20% of the daily average undrawn balance of the revolving credit facility and, from and after April 1, 2023, ranges between 0.20% and 0.25% of the daily average undrawn balance of the revolving credit facility based on the Company’s Total Net Leverage Ratio.

Borrowings under the Credit Agreement are secured by the trade receivables, inventory, personal property, equipment, and general intangibles of the Company’s significant domestic subsidiaries. Capital distributions are subject to certain Total Net Leverage Ratio requirements and capped by an annual aggregate limit under the Credit Agreement.

On January 24, 2019, the Company entered into the Sixth Amended and Restated Credit Agreement ("Senior Credit Agreement"), which amended and restated the Company’s Fifth Amended and Restated Credit Agreement dated December 9, 2015, and provided a revolving credit facility and letters of credit in an aggregate amount equal to $400 million. The Company had the ability to request additional financing to increase the revolving credit facility to $700 million or enter into a term loan of up to $300 million subject to conditions set forth in the Senior Credit Agreement.

Interest rates on the revolving credit facility under the Senior Credit Agreement were based on LIBOR plus an additional margin that ranges from 1.125% to 2.00%. In addition, the revolving credit facility under the Senior Credit Agreement was subject to an undrawn commitment fee ranging between 0.15% and 0.25% based on the Total Leverage Ratio and the daily average undrawn balance. The Senior Credit Agreement terminated on December 8, 2022.

Standby letters of credit of $4.5 million have been issued under the Credit Agreement to third parties on behalf of the Company as of December 31, 2022. These letters of credit reduce the amount otherwise available under the revolving credit facility. The Company had $304.5 million and $369.3 million of availability under the revolving credit facility as of December 31, 2022 and 2021, respectively.

Total cash paid for interest in the years ended December 31 was (in thousands):


	2022		2021		2020
Interest expense, net	$	4,047	$	1,639	$	703
Interest income	174		269		276
Other non-cash adjustments	(679)		(345)		(345)
Cash paid for interest	$	3,542	$	1,563	$	634

Pension and Other Postretirement Benefits

12 Months Ended

Dec. 31, 2022

Other Postretirement Benefits [Abstract]

Pension and Other Postretirement Benefits

PENSION AND OTHER POSTRETIREMENT BENEFITS

The Company has a 401(k) plan which all employees of U.S. subsidiaries are eligible to participate.

The Company contributes to a multiemployer defined benefit pension plan under the terms of a collective-bargaining agreement that covers union-represented employees.

The Company has an unfunded postretirement healthcare plan which provides health insurance to certain employees and their spouses upon retirement. This plan has been frozen and no additional participants will be added to the plan in the future.

Total expense for all retirement plans for the years ended December 31 was (in thousands):


	2022		2021		2020
401(k) plan	$	3,580	$	3,196	$	2,403
Multiemployer and other defined benefit and pension plans	79		78		70
Postretirement healthcare plan	342		411		351
Total retirement plan expense	$	4,001	$	3,685	$	2,824

The Company's one multiemployer plan is underfunded and has a rehabilitation plan in place. The rehabilitation plan requires minimum contributions from the Company. Given the status of this plan, it is reasonably possible that future contributions to the plan will increase although the Company cannot reasonably estimate a possible range of increased contributions as of December 31, 2022.

The following table presents the changes in the accumulated postretirement benefit obligation related to the Company’s unfunded postretirement healthcare benefits at December 31 (in thousands):


	2022		2021
Projected benefit obligation at January 1	$	6,202	$	6,443

Interest cost	127		125

Plan amendments	—		162
Actuarial gain	(1,784)		(200)
Benefits paid, net of contributions	(316)		(328)
Projected benefit obligation at December 31	4,229		6,202
Fair value of plan assets	—		—
Under funded status	(4,229)		(6,202)
Unamortized prior service cost	352		412
Unrecognized actuarial (gain) loss	(278)		1,530
Net amount recognized	$	(4,155)	$	(4,260)

Amounts recognized in the consolidated financial statements consisted of (in thousands):


	2022		2021
Accrued postretirement benefit liability:
Current portion	$	353	$	358
Long term portion	3,876		5,844
Pre-tax accumulated other comprehensive loss – unamortized post-retirement healthcare costs	(74)		(1,942)
Net amount recognized	$	4,155	$	4,260

The measurement date used to determine postretirement benefit obligation measures was December 31.

Components of net periodic postretirement benefit cost charged to expense for the years ended December 31 were as follows (in thousands):


	2022			2021			2020
Service cost	$	—		$	—		$	10
Interest cost	127			125			172
Amortization of unrecognized prior service cost	60			44			44
Loss amortization (2)	24			113			64
Net periodic benefit cost	$	211		$	282		$	290
Assumptions used to calculate the benefit obligation:
Discount rate	4.8		%	2.4		%	2.0		%
Annual rate of increase in the per capita cost of:
Medical costs before age 65 (1)	7.8		%	7.0		%	7.0		%
Medical costs after age 65 (1)	4.5		%	4.5		%	4.5		%
Prescription drug costs (1)	7.8		%	7.0		%	7.0		%

(1) For 2022, it was assumed that these rates would gradually decline to 4.0% by 2075. For 2021 and 2020, it was assumed that these rates would gradually decline to 3.8% by 2075.

(2) Actuarial losses are amortized utilizing the corridor approach. Differences between actual experience and the actuarial assumptions are reflected in (gain)/loss. If the total net (gain) or loss exceeds 10 percent of the greater of the accumulated postretirement benefit obligation or plan assets, this excess must be amortized over the average remaining service period of the active plan participants. If most of the plan participants are inactive, the amortization period is the expected future lifetime of inactive plan participants.

Expected benefit payments from the plan for the years ended December 31 are as follows (in thousands):


	2023		2024		2025		2026		2027		Years 2028 - 2032
Expected benefit payments	$	353	$	357	$	369	$	359	$	355	$	1,649

Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2022

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The cumulative balance of each component of accumulated other comprehensive income (loss) is as follows (in thousands):


	Foreign Currency Translation Adjustment		Minimum post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2020	$	(872)	$	(2,426)	$	(3,298)	$	(837)	$	(2,461)
Minimum post retirement benefit plan adjustments	—		179		179		43		136
Foreign currency translation adjustment	2,512		—		2,512		—		2,512
Balance at December 31, 2021	1,640		(2,247)		(607)		(794)		187
Minimum post retirement benefit plan adjustments	—		1,852		1,852		449		1,403
Foreign currency translation adjustment	(5,022)		—		(5,022)		—		(5,022)
Balance at December 31, 2022	$	(3,382)	$	(395)	$	(3,777)	$	(345)	$	(3,432)

The realized adjustments relating to the Company’s minimum post retirement health care costs were reclassified from accumulated other comprehensive loss and included in other expense in the consolidated statements of operations.

Equity-Based Compensation

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Equity-Based Compensation

EQUITY-BASED COMPENSATION

The Company awards equity-based compensation to employees and directors, which is recognized in the statements of operations based on the grant-date fair value of the award. The Company uses the straight-line method for recording compensation expense over a vesting period generally up to four years with either graded or cliff vesting. Stock compensation expense recognized during the period is based on the value of the portion of equity-based awards that is ultimately expected to vest during the period reduced by the expense on unvested awards forfeited during the period.

On May 4, 2022, the stockholders of the Company approved the adoption of the Gibraltar Industries, Inc. Amended and Restated 2016 Stock Plan for Non-Employee Directors ("Non-Employee Directors Plan") which increases the total number of shares for issuance by the Company thereunder from 100,000 shares to 200,000 shares, allows the Company to grant awards of shares of the Company's common stock to current non-employee Directors of the Company, and permits the Directors to defer receipt of such shares pursuant to the terms of the Non-Employee Directors Plan.

On May 4, 2018, the shareholders of the Company approved the adoption of the Gibraltar Industries, Inc. 2018 Equity Incentive Plan (the "2018 Plan"). The 2018 Plan provides for the issuance of up to 1,000,000 shares of common stock and supplements the remaining shares available for issuance under the existing Gibraltar Industries, Inc. 2015 Equity Incentive Plan (the "2015 Plan"). The Company's 2005 Equity Incentive Plan (the "Prior Plan") was amended in 2015 to terminate issuance of further awards from the Prior Plan. Both the 2018 Plan and the 2015 Plan allow the Company to grant equity-based incentive compensation awards, in the form of non-qualified options, restricted shares, restricted stock units, performance shares, performance stock units, and stock rights to eligible participants.

At December 31, 2022, approximately 326,000 and 80,000 shares were available for issuance under the 2018 Plan and 2015 Plan, respectively, as incentive stock options or other stock awards, and approximately 101,000 shares were available for issuance under the Non-Employee Directors Plan as awards of shares of the Company's common stock.

The Company recognized the following compensation expense in connection with awards that vested under the 2018 Plan, the 2015 Plan, the Prior Plan, and the Non-Employee Directors Plan along with the related tax benefits recognized during the years ended December 31 (in thousands):


	2022		2021		2020
Expense recognized under the Prior Plan	$	19	$	29	$	40
Expense recognized under the 2015 Plan	1,617		1,186		1,932
Expense recognized under the 2018 Plan	5,928		6,597		5,441
Expense recognized under the Non-Employee Directors Plan	770		840		760
Total stock compensation expense	$	8,334	$	8,652	$	8,173
Tax benefits recognized related to stock compensation expense	$	2,175	$	2,189	$	2,272

Equity Based Awards - Settled in Stock

The following table provides the number of stock units and common stock granted during the years ended December 31, along with the weighted-average grant-date fair value of each award:


	2022			2021			2020
Awards	Number of Awards	Weighted Average Grant Date Fair Value		Number of Awards	Weighted Average Grant Date Fair Value		Number of Awards	Weighted Average Grant Date Fair Value


Deferred stock units	2,460	$	42.69	7,536	$	83.58	12,402	$	45.98
Common stock	15,652	$	42.49	2,512	$	83.58	4,134	$	45.98
Restricted stock units	132,430	$	43.92	72,243	$	79.28	81,397	$	56.81
Performance stock units (1)	108,464	$	47.00	62,778	$	87.84	160,426	$	55.98

(1) The Company’s performance stock units (“PSUs”) represent shares granted for which the final number of shares earned depends on financial performance or market conditions. The number of shares to be issued may vary between 0% and 200% of the number of PSUs granted depending on the relative achievement to targeted thresholds. The Company's PSUs with a financial performance condition are based on either the Company’s return on invested capital (“ROIC”) over a one-year period performance period or other criteria such as revenue, gross profit, and operating profit thresholds over a three-year performance period. The Company's PSUs with a market condition are based on the ranking of the Company’s total shareholder return (“TSR”) performance, on a percentile basis, over a three-year performance period compared to the S&P Small Cap Industrial sector, over the same three-year performance period.

Stock Options

No options were granted during the years ended December 31, 2022, 2021 and 2020. The Company determines the fair value of stock options granted based on the Black-Scholes option pricing model on the date of grant, and the expected stock volatility is based on volatility of the Company’s stock price using a historical period commensurate with the expected life of the options.

At December 31, 2022, the Company has one grant of options outstanding. The following table summarizes the Company's outstanding and exercisable options at December 31, 2022:


Exercise Price	Options Outstanding	Weighted Average Remaining Contractual Life (in years)	Weighted Average Exercise Price		Options Exercisable	Weighted Average Exercise Price
$39.55	5,000	4.26	$	39.55	5,000	$	39.55

The following table summarizes information about stock option transactions:


	Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Balance at January 1, 2020	117,409	$	19.91

Exercised	(75,909)	14.73

Balance at December 31, 2020	41,500	$	29.38


Exercised	(36,500)	27.99
Balance at December 31, 2021	5,000	$	39.55
Exercised	—	—
Balance at December 31, 2022	5,000	$	39.55	4.26	$	31,650

The aggregate intrinsic value in the preceding table represents the total pre-tax intrinsic value, based on the $45.88 per share market price of the Company’s common stock as of December 31, 2022, which would have been received by the option holder had the option holder with an exercise price below the per share market price on December 31, 2022, exercised the options as of that date.

Stock Units and Common Stock

The following table summarizes information about non-vested restricted stock units and performance stock units (that will convert to shares upon vesting) and common stock:


	Restricted Stock Units	Weighted Average Grant Date Fair Value		Common Stock	Weighted Average Grant Date Fair Value		Performance Stock Units	Weighted Average Grant Date Fair Value		Deferred Stock Units (2)	Weighted Average Grant Date Fair Value
Balance at December 31, 2021	204,584	$	52.90	—	$	—	363,474	$	55.44	52,472	$	43.99
Granted	132,430	$	43.92	15,652	$	42.49	108,464	$	47.00	2,460	$	42.69
Adjustments (1)	—	$	—	—	$	—	(65,209)	$	82.75	—	$	—
Vested	(83,714)	$	45.77	(15,652)	$	42.49	(145,153)	$	41.28	(14,582)	$	40.53
Forfeited	(17,930)	$	59.62	—	$	—	(50,208)	$	61.51	—	$	—
Balance at December 31, 2022	235,370	$	49.87	—	$	—	211,368	$	50.96	40,350	$	45.16

(1) The Company's PSU adjustments during 2022 represents (i) 55,959 shares for which the performance condition was not achieved and the PSUs were adjusted in the first quarter of 2022 to reflect zero PSU earned as the threshold level of achievement was not met based on the Company's actual ROIC achievement level for the performance period ended December 31, 2021 and (ii) 9,250 shares not earned that related to two separate PSU awards granted in 2019 and 2020 that the threshold level of achievement based on other performance criteria as defined in the respective awards over a two-year or three-year performance periods were not met for the performance periods ended December 31, 2021.

(2) Vested and issuable upon termination from service as a member of the Company's Board of Directors.

The fair value of the common stock, restricted stock units, and deferred stock units, as well as the performance stock units with a financial performance condition granted during the three years ended December 31, 2022 was based on the Company stock price at grant date of the award. The fair value of the performance stock units with a market condition granted during the three years ended December 31, 2022 were determined using a Monte Carlo simulation as of the grant date of the award. The Company granted performance units with a market condition during 2020; however, no such awards were granted in 2022 and 2021.

The following table sets forth the aggregate intrinsic value of options exercised and aggregate fair value of restricted stock units and restricted shares that vested during the years ended December 31 (in thousands):


	2022		2021		2020
Aggregate intrinsic value of options exercised	$	—	$	2,103	$	3,812
Aggregate fair value of vested restricted stock units	$	3,920	$	6,320	$	11,851
Aggregate fair value of vested common stock	$	665	$	370	$	190
Aggregate fair value of vested performance stock units	$	6,729	$	9,080	$	4,197
Aggregate fair value of vested deferred stock units	$	105	$	630	$	570

As of December 31, 2022, there was $9.3 million of total unrecognized compensation cost related to non-vested restricted and performance stock units. That cost is expected to be recognized over a weighted average period of 2.3 years.

Equity Based Awards - Settled in Cash

Management Stock Purchase Plan

The Company's equity-based awards that are settled in cash are the awards under the Management Stock Purchase Plan (the "MSPP") which is authorized under the Company's equity incentive plans. The MSPP provides participants the ability to defer a portion of their compensation, convertible to unrestricted investments, restricted stock units, or a combination of both, or defer a portion of their directors’ fees, convertible to restricted stock units. Employees eligible to defer a portion of their compensation also receive a company-matching award in restricted stock units equal to a percentage of their deferred compensation.

The deferrals and related company match are credited to an account that represents a share-based liability. The portion of the account deferred to unrestricted investments is measured at fair market value of the unrestricted investments, and the portion of the account deferred to restricted stock units and company-matching restricted stock units is measured at a 200-day average of the Company stock price. The account will be converted to and settled in cash payable to participants upon retirement or a termination of their service to the Company.

Total MSPP liabilities recorded on the consolidated balance sheet as of December 31, 2022 were $15.4 million, of which $2.3 million was included in current accrued expenses and $13.1 million was included in non-current liabilities. Total MSPP liabilities recorded on the consolidated balance sheet as of December 31, 2021 were $22.6 million, of which $2.9 million was included in current accrued expenses and $19.7 million was included in non-current liabilities. The value of the restricted stock units within the MSPP liability were $13.4 million and $20.7 million at December 31, 2022 and 2021, respectively.

The following table provides the number of restricted stock units credited to active participant accounts, balance of vested and unvested restricted stock units within active participant accounts, payments made with respect to restricted stock units issued under the MSPP, and MSPP expense during years ended December 31:


	2022		2021		2020
Restricted stock units credited	12,365		30,475		57,046
Restricted stock units balance, vested and unvested	158,644		223,892		231,343
Share-based liabilities paid (in thousands)	$	3,689	$	4,915	$	15,401
MSPP (recovery) expense (in thousands)	$	(4,459)	$	6,034	$	4,518

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Depending on the nature of the asset or liability, various techniques and assumptions can be used to estimate fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement as follows: •Level 1 - Quoted prices in active markets for identical assets or liabilities. •Level 2 - Observable inputs other than quoted prices in active markets for similar assets and liabilities. •Level 3 - Inputs that are unobservable inputs for the asset or liability. The Company had no financial assets or liabilities measured at fair value on a recurring basis and did not have any financial instruments for which carrying value differed from its fair value at December 31, 2022 and 2021. As of December 31, 2022, the Company had $91.0 million outstanding on its revolving credit facility under its Credit Agreement. The Company determined the carrying value of the outstanding balance on its revolving credit facility approximates fair value due to the variable market interest rate terms of the credit facility. The Company had $24.5 million outstanding on its revolving credit facility as of December 31, 2021. The Company’s other financial instruments primarily consist of cash and cash equivalents, accounts receivable, notes receivable, and accounts payable. The carrying values for these financial instruments approximate fair value. The Company did not have any other material assets or liabilities carried at fair value and measured on a recurring basis as of December 31, 2022 and 2021. Other non-recurring fair value measurements The Company recorded impairment of property, plant and equipment during the years ended December 31, 2022 and 2020, and recognized impairment charges related to certain intangible assets during the year ended December 31, 2021. The Company uses unobservable inputs, classified as Level 3 inputs, in determining the fair value of these assets. See Note 7 "Goodwill and Related Intangible Assets," Note 14 "Held for Sale and Discontinued Operations" and Note 15 "Exit Activity Costs and Asset Impairments" for more disclosure regarding the impairment of certain intangible assets and property, plant, and equipment, respectively. The Company also applied fair value principles for the goodwill impairment tests performed during 2022, 2021, and 2020. The Company used two valuation models to estimate the fair values of its reporting units, both of which primarily use Level 3 inputs. See Note 7 "Goodwill and Related Intangible Assets" of the consolidated financial statements for the results of the Company’s goodwill impairment tests. Additionally, the Company's recent acquisition activity, as described in Note 6 "Acquisitions," used Level 3 inputs to estimate fair values allocated to the assets acquired and liabilities assumed.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Discontinued Operations

12 Months Ended

Dec. 31, 2022

Discontinued Operations and Disposal Groups [Abstract]

DISCONTINUED OPERATIONS

HELD FOR SALE AND DISCONTINUED OPERATIONS

Held for Sale

During the first quarter of 2022, the Company committed to a plan to sell its Processing business (the "disposal group") which is a business within the Company's Agtech reportable segment. The planned sale does not meet the criteria to be classified as a discontinued operation. As a result, the Company will continue reporting the operating results of the disposal group in the Company's consolidated operating results from continuing operations until the sale of the business is completed.

The Company classifies assets and related liabilities as held for sale when: (i) management has committed to a plan to sell the assets, (ii) the net assets are available for immediate sale, (iii) there is an active program to locate a buyer and (iv) the sale and transfer of the net assets is probable within one year. Assets and liabilities held for sale are presented in prepaid expenses and other current assets and accrued expenses on the Company's consolidated balance sheets with a valuation allowance to recognize the net carrying amount at the lower of cost or fair value, less costs to sell.

As of December 31, 2022, the assets and liabilities of the disposal group have been classified as held for sale. The following table summarizes these assets and liabilities which have been measured at the lower of (i) the carrying value when classified as held for sale and (ii) the fair value of the business less costs to sell.


(in thousands)	December 31, 2022
Assets held for sale
Accounts receivable, net of allowance	$	266
Inventories, net of reserves	6,748
Other current assets	1,999
Property, plant, and equipment, net	331
Operating lease asset	495
Acquired intangibles, net	6,213
Valuation allowance	(13,990)
Total assets held for sale	$	2,062
Liabilities held for sale
Accounts payable	$	733
Accrued expenses	1,159
Non-current operating lease liabilities	70
Total liabilities held for sale	$	1,962

Net sales, operating loss and valuation allowance recorded for this disposal group for the years ended December 31 are as follows (in thousands):



	2022		2021
Net sales	$	7,840	$	20,328
Operating loss	$	(6,769)	$	(3,539)
Valuation allowance	$	(13,990)	$	—

Effective with the classification of the disposal group as held for sale, depreciation of property, plant, and equipment and amortization of finite-lived intangible assets and right-of-use assets are not recorded while these assets are classified as held for sale. As a result of the Company's evaluation of the recoverability of the carrying value of the assets and liabilities held for sale relative to an estimated sales price, adjusted for costs to sell, a valuation allowance of $14.0 million was recorded during the twelve months ended December 31, 2022 and has been presented within other expense (income) in the consolidated statements of operations. The recoverability of the disposal group will be evaluated each reporting period until the sale of the business is completed.

Discontinued Operations

On February 23, 2021, the Company sold the stock of its Industrial business which had been classified as held for sale and reported as a discontinued operation in the Company’s consolidated financial statements for the years ended December 31, 2021 and 2020. Net proceeds of $38 million, consisting of cash and a $13 million seller note, resulted in an estimated pre-tax loss of $30 million, subject to working capital and other adjustments, of which $29.6 million was recorded when the assets of the Industrial business were written down to fair market value during the fourth quarter of 2020. The seller note was paid in full to the Company during the second quarter of 2021.

The results of operations of the Industrial business have been presented as a discontinued operation in the Company's consolidated financial statements for all periods presented. The Company allocates interest to its discontinued operations in accordance with ASC Subtopic 205-20, “Presentation of Financial Statements – Discontinued Operations.” Interest was allocated based on the amount of net assets held by the discontinued operation in comparison to consolidated net assets.

Components of the income (loss) from discontinued operations before taxes, including the interest allocated to discontinued operations, for the years ended December 31 were as follows (in thousands):


	2022		2021		2020
Net sales	$	—	$	20,391	$	128,915
Operating expenses	—		17,493		115,822
Loss and adjustments to loss on disposal	—		1,419		29,600
Interest expense allocation	—		—		95
Income (loss) from discontinued operations before taxes	$	—	$	1,479	$	(16,602)

On June 30, 2020, the Company sold its self-guided apartment tour application business to a third party from its Residential segment. The $2.0 million net proceeds from the sale resulted in pre-tax net gain of $1.9 million and has been presented within other expense (income) in the consolidated statements of operations. This divestiture did not meet the criteria to be reported as a discontinued operation nor did it have a major effect on the Company's operations.

Exit Activity Costs and Asset Impairments

12 Months Ended

Dec. 31, 2022

Restructuring and Related Activities [Abstract]

Exit Activity Costs and Asset Impairments

EXIT ACTIVITY COSTS AND ASSET IMPAIRMENTS

The Company has incurred exit activity costs and asset impairment charges as a result of its 80/20 simplification and portfolio management initiatives. These initiatives have resulted in the identification of low-volume, low margin, internally-produced products which have been or will be outsourced or discontinued, the simplification of processes, in the sale and exiting of less profitable businesses or products lines, and the reduction in the Company's manufacturing footprint.

Exit activity costs were incurred during 2022 related to moving and closing costs, severance and contract terminations, along with asset impairment charges related to the write-down of inventory and impairment of machinery and equipment associated with discontinued product lines, as a result of process simplification initiatives. In conjunction with these initiatives, in 2022, the Company exited a facility, relocating to a new one, and separately, closed two other facilities. In 2021, the Company closed four facilities. In 2020, the Company closed two facilities and, separately, sold a facility closed in 2017. These closures resulted in exit activity costs and asset impairment charges.

The following table sets forth the exit activity costs (recoveries) and asset impairment charges incurred by segment during the years ended December 31 related to the restructuring activities described above (in thousands):


	2022						2021				2020
	Exit activity costs (recoveries)		Asset impairment charges		Total		Exit activity costs		Asset impairment charges		Total		Exit activity costs		Asset impairment charges		Total
Renewables	$	3,256	$	1,198	$	4,454	$	4,769	$	1,193	$	5,962	$	15	$	—	$	15
Residential	1,825		12		1,837		393		—		393		731		9		740
Agtech	771		1,066		1,837		1,687		—		1,687		860		72		932
Infrastructure	(63)		—		(63)		26		—		26		226		—		226
Corporate	250		—		250		145		—		145		375		—		375
Total	$	6,039	$	2,276	$	8,315	$	7,020	$	1,193	$	8,213	$	2,207	$	81	$	2,288

The following table provides a summary of where the above exit activity costs and asset impairments are recorded in the consolidated statements of operations for the years ended December 31 (in thousands):


	2022		2021		2020
Cost of sales	$	5,258	$	6,176	$	1,059
Selling, general, and administrative expense	3,057		2,037		1,229
Total exit activity costs and asset impairments	$	8,315	$	8,213	$	2,288

The following table reconciles the beginning and ending liability for exit activity costs relating to the Company’s facility consolidation efforts (in thousands):


	2022		2021
Balance as of January 1	$	272	$	1,030
Exit activity costs recognized	6,039		7,020
Cash payments	(3,894)		(7,778)

Balance as of December 31	$	2,417	$	272

Income Taxes

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to reverse.

The components of income before taxes from continuing operations consisted of the following for the years ended December 31 (in thousands):


	2022		2021		2020
Domestic	$	112,635	$	93,155	$	108,930
Foreign	(1,145)		6,407		(1,171)
Income before taxes from continuing operations	$	111,490	$	99,562	$	107,759

The provision for income taxes from continuing operations for the years ended December 31 consisted of the following (in thousands):


	2022		2021		2020
Current:
U.S. Federal	$	17,014	$	16,137	$	16,505
State	5,647		5,009		4,071
Foreign	86		932		106
Total current	22,747		22,078		20,682
Deferred:
U.S. Federal	5,259		1,766		3,620
State	1,381		134		672
Foreign	(303)		1,068		(506)
Total deferred	6,337		2,968		3,786
Provision for income taxes	$	29,084	$	25,046	$	24,468

The provision for income taxes from discontinued operations for the years ended December 31 consisted of the following (in thousands):


	2022		2021		2020
Current:
U.S. Federal	$	—	$	362	$	1,345
State	—		139		57
Foreign	—		214		1,725
Total current	—		715		3,127
Deferred:
U.S. Federal	—		(340)		(876)
State	—		2		10
Foreign	—		(11)		(138)
Total deferred	—		(349)		(1,004)
Provision for income taxes	$	—	$	366	$	2,123

The provision for income taxes from continuing operations differs from the federal statutory rate of 21% due to the following for the years ended December 31 (in thousands, except for percentages) :


	2022				2021				2020
Statutory rate	23,413		21.0	%	20,908		21.0	%	22,629		21.0	%
State taxes, less federal effect	5,541		5.0	%	4,068		4.1	%	3,650		3.4	%
Federal tax credits	(549)		(0.5)	%	(587)		(0.6)	%	(1,064)		(1.0)	%
Excess tax benefit on stock based compensation	(214)		(0.2)	%	(2,039)		(2.0)	%	(1,674)		(1.6)	%

Executive compensation	960		0.9	%	1,781		1.8	%	1,114		1.0	%
Change in valuation allowance	—		—	%	—		—	%	(130)		(0.1)	%











Other	(67)		(0.1)	%	915		0.9	%	(57)		—	%

	$	29,084	26.1	%	$	25,046	25.2	%	$	24,468	22.7	%

Deferred tax liabilities at December 31 consisted of the following (in thousands):


	2022		2021
Depreciation	$	14,570	$	9,633
Goodwill	62,132		48,265
Intangible assets	3,706		1,657

Other	8,133		5,298
Gross deferred tax liabilities	88,541		64,853
Capital loss carryforward	(26,490)		(27,328)
Equity compensation	(5,993)		(8,236)
Assets held for sale	(13,669)		—
Capitalized research and development costs	(4,503)		—
Other	(17,493)		(15,641)
Gross deferred tax assets	(68,148)		(51,205)
Valuation allowances	26,488		26,581
Deferred tax assets, net of valuation allowances	(41,660)		(24,624)
Net deferred tax liabilities	$	46,881	$	40,229

At December 31, 2022, the Company had total net operating loss carry forwards of $7.9 million, which included $0.4 million for federal, $6.6 million for state, and $0.9 million for foreign income tax purposes. The federal and state net operating loss carry forwards expire between 2023 and 2042. The foreign net operating loss carry forwards expire between 2023 and 2031. The Company recognized a total of $0.7 million of deferred tax assets, net of the federal tax benefit, related to these net operating losses prior to any valuation allowances, which included $0.1 million of federal and $0.4 million of state deferred tax assets and $0.2 million of foreign deferred tax assets.

As a result of the sale of the Industrial business during 2021, the Company generated a capital loss of $113.7 million for federal and state purposes to the extent allowable under state tax regulations. Amended Federal returns were filed to carry back $3.7 million of capital loss. As of December 31, 2022, the remaining capital loss carry forward is $110.0 million. The capital loss carryforward will expire in 2026. The Company recognized a total of $26.5 million of deferred tax assets, net of the federal benefit, related to this carryforward prior to any valuation allowances, which included $22.2 million of federal and $4.3 million of state deferred tax assets. The Company has a full valuation allowance on the capital loss carry forward and as a result there is no deferred tax asset.

Deferred taxes include net deferred tax assets relating to certain state and foreign tax jurisdictions. A reduction of the carrying amount of deferred tax assets by a valuation allowance is required if it is more likely than not that such assets will not be realized. In 2020, the valuation allowance in China was reversed and a tax attribute valuation allowance was also reversed as the Company expects to utilize the attribute. In 2021, a valuation allowance was recorded on federal and state capital loss carry forwards which are not expected to be utilized before expiration.

The following sets forth a reconciliation of the beginning and ending amount of the Company’s valuation allowance (in thousands):


	2022		2021		2020
Balance as of January 1	$	26,581	$	111	$	298
Cost charged to the tax provision	10		13		70
Reductions	(103)		(41)		(248)
Reclassification from discontinued operations upon sale of industrial group	—		26,498		—

Currency translation	—		—		(9)
Balance as of December 31	$	26,488	$	26,581	$	111

The Company made net payments for income taxes for the following amounts for the years ended December 31 (in thousands):


	2022		2021		2020
Payments made for income taxes, net	$	27,017	$	22,076	$	21,351

At December 31, 2022, the Company had approximately $2.2 million of undistributed earnings of foreign subsidiaries. The Company continues to maintain its assertion that all remaining foreign earnings will be indefinitely reinvested. Any excess earnings could be used to grow the Company's foreign operations through launches of new capital projects or additional acquisitions. Determination of the amount of unrecognized deferred U.S. income tax liability related to the Company's remaining unremitted foreign earnings is not practicable due to the complexities associated with its hypothetical calculation.

In 2022, 2021 and 2020, the Company did not have any unrecognized tax benefits and no activity related to such benefits has occurred in any of the years presented in the consolidated financial statements. The Company classifies accrued interest and penalties related to unrecognized tax benefits in income tax expense. No interest or penalties have been recognized during the years ended December 31, 2022, 2021 or 2020.

The Company and its U.S. subsidiaries file a U.S. federal consolidated income tax return. Foreign and U.S. state jurisdictions have statute of limitations generally ranging from four to ten years. The Company is currently in appeals for an audit of tax years 2016 through 2019 in Massachusetts and believes the technical merits of the position will be sustained.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 21
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 17
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 14
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 270
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI https://asc.fasb.org/topic&trid=2144680

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Earnings per Share

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Earnings per Share

EARNINGS PER SHARE

Basic earnings per share is based on the weighted average number of common shares outstanding. Diluted earnings per share is based on the weighted average number of common shares outstanding, as well as dilutive common shares which include shares issuable pursuant to equity based incentive compensation awards under the equity compensation plans described in Note 12 "Equity-Based Compensation" of the consolidated financial statements.

Weighted average shares outstanding for basic and diluted earnings were as follows for the years ended December 31 (in thousands):


	2022		2021		2020
Numerator:
Income from continuing operations	$	82,406	$	74,516	$	83,291
Income (loss) from discontinued operations	—		1,113		(18,725)
Net income available to common shareholders	$	82,406	$	75,629	$	64,566
Denominator for basic earnings per share:
Weighted average shares outstanding	32,096		32,873		32,664
Denominator for diluted earnings per share:
Common stock options and stock units	96		181		254
Weighted average shares and conversions	32,192		33,054		32,918

The weighted average number of diluted shares does not include potential anti-dilutive common shares issuable pursuant to equity based incentive compensation awards. The treasury stock method is used to calculate dilutive shares, which reduces the gross number of dilutive shares by the number of shares purchasable from the proceeds of the options assumed to be exercised and the unrecognized expense related to the options, restricted shares, restricted stock units, and performance stock units assumed to have vested.

The following table provides the potential anti-dilutive common stock options and stock units for the years ended December 31 (in thousands):


	2022	2021	2020
Common stock options and stock units	43	—	13

Leases

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Leases

LEASES

The Company's leases are classified as operating leases and consist of manufacturing facilities, distribution centers, office space, vehicles and equipment.

Most of the Company's leases include one or more options to renew, with renewal terms that can extend the respective lease term from one month to fifteen years. The exercise of lease renewal options is at the Company's sole discretion. As of December 31, 2022 and 2021, the Company's renewal options are not part of the Company's operating lease assets and operating lease liabilities. Certain leases also include options to purchase at fair value the underlying leased asset at the Company's sole discretion.

Amounts recognized in the Company's consolidated balance sheet at December 31 were as follows (in thousands):


		2022		2021
Assets	Operating lease assets	$	26,502	$	18,120

Liabilities
Current	Accrued expenses	$	8,620	$	7,239
Non-current	Non-current operating lease liabilities	19,041		11,390
		$	27,661	$	18,629

The components of lease costs for the years ended December 31 were as follows (in thousands):


	2022		2021		2020
Operating lease cost	$	11,191	$	10,977	$	10,005
Short-term lease cost	5,694		7,153		996
Total lease cost	$	16,885	$	18,130	$	11,001

Information related to the Company's operating right-of-use assets and related operating lease liabilities for the years ended December 31 were as follows (in thousands):


	2022		2021		2020
Cash paid for amounts included in the measurement of operating liabilities	$	8,835	$	9,431	$	9,502
Right-of-use assets obtained in exchange for new lease liabilities	$	17,008	$	1,084	$	12,745

Information related to the Company's lease terms and discount rates as of December 31 were as follows:


	2022		2021
Weighted-average remaining lease term - operating leases	5.3	years	3.0	years
Weighted-average discount rate - operating leases	5.0	%	5.2	%

The future maturity of the Company's lease liabilities as of December 31, 2022 were as follows (in thousands):


2023	$	9,734
2024	6,884
2025	3,850
2026	2,444
2027	1,817
After 2027	7,011
Total lease payments	31,740
Less: present value discount	(4,079)
Present value of lease liabilities	$	27,661

The Company uses the its incremental borrowing rate based on information available at the commencement date of a lease in determining the present value of lease payments as the rates implicit in most of the Company's leases are not readily determinable.

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIESThe Company is a party to certain claims and legal actions generally incidental to its business. Management does not believe that the outcome of any claims, or other claims which are not clearly determinable at the present time, would result in a material adverse effect on the Company's financial condition or results of operations.

Segment Information

12 Months Ended

Dec. 31, 2022

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

Segment Information

SEGMENT INFORMATION

The Company is organized into four reportable segments on the basis of the production processes, products and services provided by each segment, identified as follows:

(i)Renewables, which primarily includes designing, engineering, manufacturing and installation of solar racking and electrical balance of systems;

(ii)Residential, which primarily includes roof and foundation ventilation products, centralized mail systems and electronic package solutions, retractable awnings and gutter guards, and rain dispersion products, trims and flashings and other accessories;

(iii)Agtech, which provides growing solutions including the designing, engineering, manufacturing and installation of greenhouses; and

(iv)Infrastructure, which primarily includes structural bearings, expansion joints and pavement sealant for bridges, airport runways and roadways, elastomeric concrete, and bridge cable protection systems.

When determining the reportable segments, the Company aggregated operating segments based on their similar economic and operating characteristics. During the first quarter of 2021, the Company reassessed its reportable segments. As a result, the Company's former Renewable Energy and Conservation segment was divided into two reportable segments: Renewables and Agtech.

The following tables illustrate certain measurements used by management to assess the performance of the segments described above as of and for the years ended December 31 (in thousands):


	2022		2021		2020
Net sales:
Renewables	$	377,567	$	432,096	$	238,107
Residential	767,248		635,505		522,814
Agtech	168,868		199,161		209,460
Infrastructure	76,283		73,021		62,197
Total consolidated net sales	$	1,389,966	$	1,339,783	$	1,032,578

Income from operations:
Renewables	$	25,243	$	20,158	$	30,105
Residential	126,458		105,821		94,430
Agtech	2,914		(931)		10,633
Infrastructure	9,003		8,911		7,233
Segments income from operations	163,618		133,959		142,401
Unallocated corporate expenses	(33,516)		(36,971)		(35,211)
Total income from operations	$	130,102	$	96,988	$	107,190

Depreciation and Amortization
Renewables	$	8,467	$	14,682	$	3,377
Residential	8,983		8,694		8,110
Agtech	4,377		5,279		6,068
Infrastructure	3,150		3,092		3,060
Unallocated corporate expenses	1,190		219		300
	$	26,167	$	31,966	$	20,915


	2022		2021		2020
























Total assets
Renewables	$	392,368	$	445,486	$	402,797
Residential	519,567		453,469		407,132
Agtech	193,966		212,038		216,274
Infrastructure	80,264		82,662		80,796
Unallocated corporate assets	24,448		21,246		28,057
Assets of discontinued operations	—		—		77,438
	$	1,210,613	$	1,214,901	$	1,212,494

Capital expenditures
Renewables	$	3,589	$	4,268	$	423
Residential	10,050		4,182		3,313
Agtech	3,177		3,289		720
Infrastructure	1,898		2,097		1,511
Unallocated corporate expenditures	1,424		3,869		7,101
	$	20,138	$	17,705	$	13,068

The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the years ended December 31 (in thousands):


	2022
	Renewables		Residential		Agtech		Infrastructure		Total
Net sales:
Point in Time	$	27,317	$	761,576	$	13,011	$	32,983	$	834,887
Over Time	350,250		5,672		155,857		43,300		555,079
Total	$	377,567	$	767,248	$	168,868	$	76,283	$	1,389,966

	2021
	Renewables		Residential		Agtech		Infrastructure		Total
Net sales:
Point in Time	$	28,630	$	630,494	$	20,157	$	32,512	$	711,793
Over Time	403,466		5,011		179,004		40,509		627,990
Total	$	432,096	$	635,505	$	199,161	$	73,021	$	1,339,783

	2020
	Renewables		Residential		Agtech		Infrastructure		Total
Net sales:
Point in Time	$	22,833	$	518,281	$	52,894	$	22,781	$	616,789
Over Time	215,274		4,533		156,566		39,416		415,789
Total	$	238,107	$	522,814	$	209,460	$	62,197	$	1,032,578

Net sales by region or origin and long-lived assets by region of domicile for the years ended and as of December 31 are as follows (in thousands):


	2022		2021		2020
Net sales
North America	$	1,373,907	$	1,318,795	$	1,018,406

Asia	16,059		20,988		14,172
Total	$	1,389,966	$	1,339,783	$	1,032,578

Long-lived assets
North America	$	136,553	$	97,003	$	90,685

Asia	234		365		476
Total	$	136,787	$	97,368	$	91,161

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Principles of consolidation

Use of estimates

Segment Reporting

Segment ReportingThe Company has four reportable segments: Renewables, Residential, Agtech and Infrastructure. In 2021, the Company's former Renewable Energy and Conservation segment was divided into two segments, Renewables and Agtech.

Revenue recognition

Performance obligations satisfied at a point in time and significant judgments

Performance obligations satisfied over time and significant judgments

charged to operations as incurred. Provision for loss on an uncompleted performance obligation is recognized in the period in which such loss is determined.

Contract assets and contract liabilities

Costs to obtain a contract with a customer

Cash and cash equivalents

All highly liquid investments with a maturity of three months or less are considered cash equivalents.

Accounts receivable and allowance for doubtful accounts and contract assets

Estimates are used to determine the allowance. These estimates are based on assessment of anticipated payment and all other historical, current and future information that is reasonably available.

The following table summarizes activity recorded within the allowance for doubtful accounts and contract assets balances for the years ended December 31 (in thousands):


	2022		2021		2020
Beginning balance	$	3,738	$	3,529	$	5,951
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings at January 1, 2020	—		—		385
Bad debt expense, net of recoveries	1,221		898		1,321
Accounts written off against allowance and other adjustments	(1,213)		(689)		(4,128)
Ending balance	$	3,746	$	3,738	$	3,529

Inventories

Inventories are valued at the lower of cost, determined using the first-in, first-out method, or net realizable value. Shipping and handling costs are recognized as a component of cost of sales.

Property, plant, and equipment

Goodwill and other intangible assets

considered impaired, and a loss measured by the excess of the carrying value of the reporting unit over the fair value of the reporting unit must be recorded.

Impairment of long-lived assets

Leases

Deferred charges

Advertising

AdvertisingThe Company expenses advertising and marketing costs as incurred.

Foreign currency transactions and translation

Income taxes

Equity-based compensation

Recent accounting pronouncements

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Summary Of Activity Recorded Within The Allowance For Doubtful Accounts

The following table summarizes activity recorded within the allowance for doubtful accounts and contract assets balances for the years ended December 31 (in thousands):


	2022		2021		2020
Beginning balance	$	3,738	$	3,529	$	5,951
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings at January 1, 2020	—		—		385
Bad debt expense, net of recoveries	1,221		898		1,321
Accounts written off against allowance and other adjustments	(1,213)		(689)		(4,128)
Ending balance	$	3,746	$	3,738	$	3,529

Property, Plant and Equipment

The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):


	2022		2021		2020
Depreciation expense	$	14,583	$	13,110	$	11,252

Components of property, plant, and equipment at December 31 consisted of the following (in thousands):


	2022		2021
Land and land improvements	$	4,704	$	4,634
Building and improvements	43,416		42,526
Machinery and equipment	223,843		194,015
Construction in progress	13,065		20,293
Property, plant, and equipment, gross	285,028		261,468
Less: accumulated depreciation	(175,444)		(164,583)
Property, plant, and equipment, net	$	109,584	$	96,885

Revenue (Tables)

12 Months Ended

Dec. 31, 2022

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability


	2022	2021		2020
Costs in excess of billings	41,732	$	54,437	$	26,915
Billings in excess of cost	(35,017)	(46,711)		(34,702)
Unearned revenue	(4,572)	(3,681)		(21,325)

Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2022

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable at December 31 consisted of the following (in thousands):


	2022		2021
Trade accounts receivable	$	179,170	$	185,745
Costs in excess of billings	41,732		54,437
Total accounts receivables	220,902		240,182
Less allowance for doubtful accounts	(3,746)		(3,738)
Accounts receivable, net	$	217,156	$	236,444

Inventories (Tables)

12 Months Ended

Dec. 31, 2022

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories at December 31 consisted of the following (in thousands):


	2022		2021
Raw material	$	111,187	$	135,558
Work-in-process	17,944		5,858
Finished goods	47,523		39,256
Gross inventory	176,654		180,672
Less reserves	(6,294)		(4,465)
Total inventories	$	170,360	$	176,207

Summary of Activity within the Reserve for Excess, Obsolete, and Slow Moving Inventory

The following table summarizes activity recorded within the reserve for excess, obsolete and slow moving inventory for the years ended December 31 (in thousands):


	2022		2021		2020
Beginning balance	$	4,400	$	4,161	$	3,463
Excess, obsolete and slow moving inventory expense	1,582		215		355
Scrapped inventory and other adjustments	197		24		343
Ending balance	$	6,179	$	4,400	$	4,161

Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Components of Property, Plant, and Equipment

The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):


	2022		2021		2020
Depreciation expense	$	14,583	$	13,110	$	11,252

Components of property, plant, and equipment at December 31 consisted of the following (in thousands):


	2022		2021
Land and land improvements	$	4,704	$	4,634
Building and improvements	43,416		42,526
Machinery and equipment	223,843		194,015
Construction in progress	13,065		20,293
Property, plant, and equipment, gross	285,028		261,468
Less: accumulated depreciation	(175,444)		(164,583)
Property, plant, and equipment, net	$	109,584	$	96,885

Acquisitions (Tables)

12 Months Ended

Dec. 31, 2022

Business Combinations [Abstract]

Schedule of Allocation of the Purchase Price Consideration of the Fair Value of Assets Acquired and Liabilities Assumed

The preliminary allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):


Cash	$	1,018
Working capital	23,759
Property, plant, and equipment	8,486
Acquired intangible assets	14,700
Other assets	1,813
Other liabilities	(1,295)
Goodwill	3,604
Fair value of purchase consideration	$	52,085

The allocation of the TerraSmart purchase consideration to the estimated fair value of the assets acquired and liabilities assumed is as follows as of the date of the acquisition (in thousands):


Cash	$	1,491
Working capital	5,569
Property, plant, and equipment	11,446
Acquired intangible assets	64,150
Other assets	1,854
Other liabilities	(1,640)
Goodwill	140,997
Fair value of purchase consideration	$	223,867


Cash	$	179
Working capital	(15,377)
Property, plant, and equipment	1,740
Acquired intangible assets	38,066
Other current assets	1,528
Other assets	2,381
Other liabilities	(5,576)
Goodwill	62,161
Fair value of purchase consideration	$	85,102

Schedule of Acquired Intangible Assets

The intangible assets acquired in this acquisition consisted of the following as of the date of acquisition (in thousands):


	Fair Value		Weighted-Average Amortization Period
Trademarks	$	2,800	Indefinite


Customer relationships	11,900		12 years
Total	$	14,700

The intangible assets acquired in the TerraSmart acquisition consisted of the following as of the date of acquisition (in thousands):


	Fair Value		Weighted-Average Amortization Period
Trademarks	$	20,830	Indefinite

Technology	1,940		12 years
Customer relationships	35,110		12 years

Backlog	6,270		Less than 1 year
Total	$	64,150


	Fair Value		Weighted-Average Amortization Period
Trademarks	$	8,100	Indefinite
Trademarks	1,177		3 years
Technology	8,345		5 - 15 years
Customer relationships	18,480		11 - 13 years
Non-compete agreements	1,036		5 years
Backlog	928		Less than 1 year
Total	$	38,066

Schedule of Business Combination Costs

The acquisition-related costs consisted of the following for the years ended December 31 (in thousands):


	2022		2021		2020
Cost of sales	$	1,427	$	—	$	634
Selling, general and administrative costs	545		949		3,230
Total acquisition related costs	$	1,972	$	949	$	3,864

Goodwill and Related Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the years ended December 31 were as follows (in thousands):


	Renewables		Residential		Agtech		Infrastructure		Total
Balance at December 31, 2020	$	192,527	$	205,452	$	84,622	$	31,678	$	514,279

Adjustments to prior year acquisitions	(2,433)		—		323		—		(2,110)

Foreign currency translation	(1,414)		—		187		—		(1,227)
Balance at December 31, 2021	188,680		205,452		85,132		31,678		510,942
Acquired goodwill	—		3,604		—		—		3,604

Adjustment to prior year acquisition	904		—		—		—		904
Foreign currency translation	(1,554)		—		(1,533)		—		(3,087)
Balance at December 31, 2022	$	188,030	$	209,056	$	83,599	$	31,678	$	512,363

Schedule of Acquired Intangible Assets

Acquired intangible assets consisted of the following (in thousands):


	December 31, 2022				December 31, 2021
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	55,500	$	—	$	52,700	$	—
Finite-lived intangible assets:
Trademarks	5,448		4,481		5,521		4,011
Unpatented technology	34,163		22,037		38,474		20,656
Customer relationships	115,125		46,557		108,591		39,832
Non-compete agreements	2,371		2,006		2,686		1,969
Backlog	—		—		7,200		7,200
	157,107		75,081		162,472		73,668
Total acquired intangible assets	$	212,607	$	75,081	$	215,172	$	73,668

Schedule of Intangible Assets Amortization Expense

The following table summarizes amortization expense for the years ended December 31 (in thousands):


	2022		2021		2020
Amortization expense	$	11,584	$	18,856	$	9,663

Schedule of Amortization Expense

Amortization expense related to acquired intangible assets for the next five years ended December 31 is estimated as follows (in thousands):


	2023		2024		2025		2026		2027
Amortization expense	$	11,102	$	10,922	$	10,782	$	9,370	$	7,728

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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+ Details

Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2022

Accrued Liabilities, Current [Abstract]

Accrued Expenses

Accrued expenses at December 31 consisted of the following (in thousands):


	2022		2021
Compensation	$	17,010	$	15,293
Customer rebates	16,768		15,253
Current operating lease liability	8,620		7,239
Insurance	6,440		7,310

Accrued warranties	6,251		5,686
Interest and taxes	5,696		5,463
Unearned revenue	4,572		3,681

Current portion of MSPP liabilities	2,267		2,947
Other	6,097		5,121
Total accrued expenses	$	73,721	$	67,993

Debt (Tables)

12 Months Ended

Dec. 31, 2022

Long-Term Debt, Unclassified [Abstract]

Schedule of Debt

Long-term debt consisted of the following (in thousands):


	December 31, 2022		December 31, 2021
Revolving credit facility	$	91,000	$	24,500
Less unamortized debt issuance costs	(2,238)		(719)
Total debt	$	88,762	$	23,781

Schedule of Cash Paid for Interest

Total cash paid for interest in the years ended December 31 was (in thousands):


	2022		2021		2020
Interest expense, net	$	4,047	$	1,639	$	703
Interest income	174		269		276
Other non-cash adjustments	(679)		(345)		(345)
Cash paid for interest	$	3,542	$	1,563	$	634

Pension and Other Postretirement Benefits (Tables)

12 Months Ended

Dec. 31, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Total Expense for All Retirement Plans

Total expense for all retirement plans for the years ended December 31 was (in thousands):


	2022		2021		2020
401(k) plan	$	3,580	$	3,196	$	2,403
Multiemployer and other defined benefit and pension plans	79		78		70
Postretirement healthcare plan	342		411		351
Total retirement plan expense	$	4,001	$	3,685	$	2,824

Amounts Recognized in the Consolidated Financial Statements

Amounts recognized in the consolidated financial statements consisted of (in thousands):


	2022		2021
Accrued postretirement benefit liability:
Current portion	$	353	$	358
Long term portion	3,876		5,844
Pre-tax accumulated other comprehensive loss – unamortized post-retirement healthcare costs	(74)		(1,942)
Net amount recognized	$	4,155	$	4,260

Other Postretirement Benefits

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Changes in the Accumulated Postretirement Benefit Obligation

The following table presents the changes in the accumulated postretirement benefit obligation related to the Company’s unfunded postretirement healthcare benefits at December 31 (in thousands):


	2022		2021
Projected benefit obligation at January 1	$	6,202	$	6,443

Interest cost	127		125

Plan amendments	—		162
Actuarial gain	(1,784)		(200)
Benefits paid, net of contributions	(316)		(328)
Projected benefit obligation at December 31	4,229		6,202
Fair value of plan assets	—		—
Under funded status	(4,229)		(6,202)
Unamortized prior service cost	352		412
Unrecognized actuarial (gain) loss	(278)		1,530
Net amount recognized	$	(4,155)	$	(4,260)

Schedule of Net Periodic Pension and Other Post-Retirement Benefit Costs

Components of net periodic postretirement benefit cost charged to expense for the years ended December 31 were as follows (in thousands):


	2022			2021			2020
Service cost	$	—		$	—		$	10
Interest cost	127			125			172
Amortization of unrecognized prior service cost	60			44			44
Loss amortization (2)	24			113			64
Net periodic benefit cost	$	211		$	282		$	290
Assumptions used to calculate the benefit obligation:
Discount rate	4.8		%	2.4		%	2.0		%
Annual rate of increase in the per capita cost of:
Medical costs before age 65 (1)	7.8		%	7.0		%	7.0		%
Medical costs after age 65 (1)	4.5		%	4.5		%	4.5		%
Prescription drug costs (1)	7.8		%	7.0		%	7.0		%

(1) For 2022, it was assumed that these rates would gradually decline to 4.0% by 2075. For 2021 and 2020, it was assumed that these rates would gradually decline to 3.8% by 2075.

Expected Benefit Payments from the Plan

Expected benefit payments from the plan for the years ended December 31 are as follows (in thousands):


	2023		2024		2025		2026		2027		Years 2028 - 2032
Expected benefit payments	$	353	$	357	$	369	$	359	$	355	$	1,649

Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2022

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income (Loss)

The cumulative balance of each component of accumulated other comprehensive income (loss) is as follows (in thousands):


	Foreign Currency Translation Adjustment		Minimum post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2020	$	(872)	$	(2,426)	$	(3,298)	$	(837)	$	(2,461)
Minimum post retirement benefit plan adjustments	—		179		179		43		136
Foreign currency translation adjustment	2,512		—		2,512		—		2,512
Balance at December 31, 2021	1,640		(2,247)		(607)		(794)		187
Minimum post retirement benefit plan adjustments	—		1,852		1,852		449		1,403
Foreign currency translation adjustment	(5,022)		—		(5,022)		—		(5,022)
Balance at December 31, 2022	$	(3,382)	$	(395)	$	(3,777)	$	(345)	$	(3,432)

Equity-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Summary of Compensation Expense Connection with Awards


	2022		2021		2020
Expense recognized under the Prior Plan	$	19	$	29	$	40
Expense recognized under the 2015 Plan	1,617		1,186		1,932
Expense recognized under the 2018 Plan	5,928		6,597		5,441
Expense recognized under the Non-Employee Directors Plan	770		840		760
Total stock compensation expense	$	8,334	$	8,652	$	8,173
Tax benefits recognized related to stock compensation expense	$	2,175	$	2,189	$	2,272

Schedule of Number of Awards and Weighted Average Grant Date Fair Value

The following table provides the number of stock units and common stock granted during the years ended December 31, along with the weighted-average grant-date fair value of each award:


	2022			2021			2020
Awards	Number of Awards	Weighted Average Grant Date Fair Value		Number of Awards	Weighted Average Grant Date Fair Value		Number of Awards	Weighted Average Grant Date Fair Value


Deferred stock units	2,460	$	42.69	7,536	$	83.58	12,402	$	45.98
Common stock	15,652	$	42.49	2,512	$	83.58	4,134	$	45.98
Restricted stock units	132,430	$	43.92	72,243	$	79.28	81,397	$	56.81
Performance stock units (1)	108,464	$	47.00	62,778	$	87.84	160,426	$	55.98

Summary of Ranges of Outstanding and Exercisable Options

The following table summarizes the Company's outstanding and exercisable options at December 31, 2022:


Exercise Price	Options Outstanding	Weighted Average Remaining Contractual Life (in years)	Weighted Average Exercise Price		Options Exercisable	Weighted Average Exercise Price
$39.55	5,000	4.26	$	39.55	5,000	$	39.55

Summary of Stock Options Transactions

The following table summarizes information about stock option transactions:


	Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Balance at January 1, 2020	117,409	$	19.91

Exercised	(75,909)	14.73

Balance at December 31, 2020	41,500	$	29.38


Exercised	(36,500)	27.99
Balance at December 31, 2021	5,000	$	39.55
Exercised	—	—
Balance at December 31, 2022	5,000	$	39.55	4.26	$	31,650

Summary of Information About Restricted Stock Units and Weighted Average Grant Date Fair Value

The following table summarizes information about non-vested restricted stock units and performance stock units (that will convert to shares upon vesting) and common stock:


	Restricted Stock Units	Weighted Average Grant Date Fair Value		Common Stock	Weighted Average Grant Date Fair Value		Performance Stock Units	Weighted Average Grant Date Fair Value		Deferred Stock Units (2)	Weighted Average Grant Date Fair Value
Balance at December 31, 2021	204,584	$	52.90	—	$	—	363,474	$	55.44	52,472	$	43.99
Granted	132,430	$	43.92	15,652	$	42.49	108,464	$	47.00	2,460	$	42.69
Adjustments (1)	—	$	—	—	$	—	(65,209)	$	82.75	—	$	—
Vested	(83,714)	$	45.77	(15,652)	$	42.49	(145,153)	$	41.28	(14,582)	$	40.53
Forfeited	(17,930)	$	59.62	—	$	—	(50,208)	$	61.51	—	$	—
Balance at December 31, 2022	235,370	$	49.87	—	$	—	211,368	$	50.96	40,350	$	45.16

(2) Vested and issuable upon termination from service as a member of the Company's Board of Directors.

Aggregate Intrinsic Value of Options Exercised and Aggregate Fair Value of Restricted Stock Units and Restricted Shares that Vested


	2022		2021		2020
Aggregate intrinsic value of options exercised	$	—	$	2,103	$	3,812
Aggregate fair value of vested restricted stock units	$	3,920	$	6,320	$	11,851
Aggregate fair value of vested common stock	$	665	$	370	$	190
Aggregate fair value of vested performance stock units	$	6,729	$	9,080	$	4,197
Aggregate fair value of vested deferred stock units	$	105	$	630	$	570

Cash Paid to Settle Liability Awards


	2022		2021		2020
Restricted stock units credited	12,365		30,475		57,046
Restricted stock units balance, vested and unvested	158,644		223,892		231,343
Share-based liabilities paid (in thousands)	$	3,689	$	4,915	$	15,401
MSPP (recovery) expense (in thousands)	$	(4,459)	$	6,034	$	4,518

Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2022

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Discontinued Operations

The following table summarizes these assets and liabilities which have been measured at the lower of (i) the carrying value when classified as held for sale and (ii) the fair value of the business less costs to sell.


(in thousands)	December 31, 2022
Assets held for sale
Accounts receivable, net of allowance	$	266
Inventories, net of reserves	6,748
Other current assets	1,999
Property, plant, and equipment, net	331
Operating lease asset	495
Acquired intangibles, net	6,213
Valuation allowance	(13,990)
Total assets held for sale	$	2,062
Liabilities held for sale
Accounts payable	$	733
Accrued expenses	1,159
Non-current operating lease liabilities	70
Total liabilities held for sale	$	1,962

Net sales, operating loss and valuation allowance recorded for this disposal group for the years ended December 31 are as follows (in thousands):



	2022		2021
Net sales	$	7,840	$	20,328
Operating loss	$	(6,769)	$	(3,539)
Valuation allowance	$	(13,990)	$	—

Components of the income (loss) from discontinued operations before taxes, including the interest allocated to discontinued operations, for the years ended December 31 were as follows (in thousands):


	2022		2021		2020
Net sales	$	—	$	20,391	$	128,915
Operating expenses	—		17,493		115,822
Loss and adjustments to loss on disposal	—		1,419		29,600
Interest expense allocation	—		—		95
Income (loss) from discontinued operations before taxes	$	—	$	1,479	$	(16,602)

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

Exit Activity Costs and Asset Impairments (Tables)

12 Months Ended

Dec. 31, 2022

Restructuring and Related Activities [Abstract]

Reconciliation of Liability for Exit Activity Costs Relating to Facility Consolidation Efforts


	2022						2021				2020
	Exit activity costs (recoveries)		Asset impairment charges		Total		Exit activity costs		Asset impairment charges		Total		Exit activity costs		Asset impairment charges		Total
Renewables	$	3,256	$	1,198	$	4,454	$	4,769	$	1,193	$	5,962	$	15	$	—	$	15
Residential	1,825		12		1,837		393		—		393		731		9		740
Agtech	771		1,066		1,837		1,687		—		1,687		860		72		932
Infrastructure	(63)		—		(63)		26		—		26		226		—		226
Corporate	250		—		250		145		—		145		375		—		375
Total	$	6,039	$	2,276	$	8,315	$	7,020	$	1,193	$	8,213	$	2,207	$	81	$	2,288

The following table reconciles the beginning and ending liability for exit activity costs relating to the Company’s facility consolidation efforts (in thousands):


	2022		2021
Balance as of January 1	$	272	$	1,030
Exit activity costs recognized	6,039		7,020
Cash payments	(3,894)		(7,778)

Balance as of December 31	$	2,417	$	272

Summary of Exit Activity Costs and Asset Impairments Recorded in the Consolidated Statements of Operations


	2022		2021		2020
Cost of sales	$	5,258	$	6,176	$	1,059
Selling, general, and administrative expense	3,057		2,037		1,229
Total exit activity costs and asset impairments	$	8,315	$	8,213	$	2,288

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Components of Income (Loss) Before Taxes from Continuing Operations

The components of income before taxes from continuing operations consisted of the following for the years ended December 31 (in thousands):


	2022		2021		2020
Domestic	$	112,635	$	93,155	$	108,930
Foreign	(1,145)		6,407		(1,171)
Income before taxes from continuing operations	$	111,490	$	99,562	$	107,759

Summary of Provision for Income Taxes for Continuing Operations

The provision for income taxes from continuing operations for the years ended December 31 consisted of the following (in thousands):


	2022		2021		2020
Current:
U.S. Federal	$	17,014	$	16,137	$	16,505
State	5,647		5,009		4,071
Foreign	86		932		106
Total current	22,747		22,078		20,682
Deferred:
U.S. Federal	5,259		1,766		3,620
State	1,381		134		672
Foreign	(303)		1,068		(506)
Total deferred	6,337		2,968		3,786
Provision for income taxes	$	29,084	$	25,046	$	24,468

(Benefit of) Provision for Income Taxes from Discontinued Operations

The provision for income taxes from discontinued operations for the years ended December 31 consisted of the following (in thousands):


	2022		2021		2020
Current:
U.S. Federal	$	—	$	362	$	1,345
State	—		139		57
Foreign	—		214		1,725
Total current	—		715		3,127
Deferred:
U.S. Federal	—		(340)		(876)
State	—		2		10
Foreign	—		(11)		(138)
Total deferred	—		(349)		(1,004)
Provision for income taxes	$	—	$	366	$	2,123

Provision for Income Taxes from Continuing Operations Differs from the Federal Statutory Rate

The provision for income taxes from continuing operations differs from the federal statutory rate of 21% due to the following for the years ended December 31 (in thousands, except for percentages) :


	2022				2021				2020
Statutory rate	23,413		21.0	%	20,908		21.0	%	22,629		21.0	%
State taxes, less federal effect	5,541		5.0	%	4,068		4.1	%	3,650		3.4	%
Federal tax credits	(549)		(0.5)	%	(587)		(0.6)	%	(1,064)		(1.0)	%
Excess tax benefit on stock based compensation	(214)		(0.2)	%	(2,039)		(2.0)	%	(1,674)		(1.6)	%

Executive compensation	960		0.9	%	1,781		1.8	%	1,114		1.0	%
Change in valuation allowance	—		—	%	—		—	%	(130)		(0.1)	%











Other	(67)		(0.1)	%	915		0.9	%	(57)		—	%

	$	29,084	26.1	%	$	25,046	25.2	%	$	24,468	22.7	%

Deferred Tax Liabilities (Assets)

Deferred tax liabilities at December 31 consisted of the following (in thousands):


	2022		2021
Depreciation	$	14,570	$	9,633
Goodwill	62,132		48,265
Intangible assets	3,706		1,657

Other	8,133		5,298
Gross deferred tax liabilities	88,541		64,853
Capital loss carryforward	(26,490)		(27,328)
Equity compensation	(5,993)		(8,236)
Assets held for sale	(13,669)		—
Capitalized research and development costs	(4,503)		—
Other	(17,493)		(15,641)
Gross deferred tax assets	(68,148)		(51,205)
Valuation allowances	26,488		26,581
Deferred tax assets, net of valuation allowances	(41,660)		(24,624)
Net deferred tax liabilities	$	46,881	$	40,229

Summary of Valuation Allowance

The following sets forth a reconciliation of the beginning and ending amount of the Company’s valuation allowance (in thousands):


	2022		2021		2020
Balance as of January 1	$	26,581	$	111	$	298
Cost charged to the tax provision	10		13		70
Reductions	(103)		(41)		(248)
Reclassification from discontinued operations upon sale of industrial group	—		26,498		—

Currency translation	—		—		(9)
Balance as of December 31	$	26,488	$	26,581	$	111

Income Taxes Paid, Net of Tax Refunds

The Company made net payments for income taxes for the following amounts for the years ended December 31 (in thousands):


	2022		2021		2020
Payments made for income taxes, net	$	27,017	$	22,076	$	21,351

Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings per Share

Weighted average shares outstanding for basic and diluted earnings were as follows for the years ended December 31 (in thousands):


	2022		2021		2020
Numerator:
Income from continuing operations	$	82,406	$	74,516	$	83,291
Income (loss) from discontinued operations	—		1,113		(18,725)
Net income available to common shareholders	$	82,406	$	75,629	$	64,566
Denominator for basic earnings per share:
Weighted average shares outstanding	32,096		32,873		32,664
Denominator for diluted earnings per share:
Common stock options and stock units	96		181		254
Weighted average shares and conversions	32,192		33,054		32,918

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table provides the potential anti-dilutive common stock options and stock units for the years ended December 31 (in thousands):


	2022	2021	2020
Common stock options and stock units	43	—	13

Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Assets And Liabilities, Lessee

Amounts recognized in the Company's consolidated balance sheet at December 31 were as follows (in thousands):


		2022		2021
Assets	Operating lease assets	$	26,502	$	18,120

Liabilities
Current	Accrued expenses	$	8,620	$	7,239
Non-current	Non-current operating lease liabilities	19,041		11,390
		$	27,661	$	18,629

Lease, Cost

The components of lease costs for the years ended December 31 were as follows (in thousands):


	2022		2021		2020
Operating lease cost	$	11,191	$	10,977	$	10,005
Short-term lease cost	5,694		7,153		996
Total lease cost	$	16,885	$	18,130	$	11,001

Information related to the Company's operating right-of-use assets and related operating lease liabilities for the years ended December 31 were as follows (in thousands):


	2022		2021		2020
Cash paid for amounts included in the measurement of operating liabilities	$	8,835	$	9,431	$	9,502
Right-of-use assets obtained in exchange for new lease liabilities	$	17,008	$	1,084	$	12,745

Information related to the Company's lease terms and discount rates as of December 31 were as follows:


	2022		2021
Weighted-average remaining lease term - operating leases	5.3	years	3.0	years
Weighted-average discount rate - operating leases	5.0	%	5.2	%

Lessee, Operating Lease, Liability, Maturity

The future maturity of the Company's lease liabilities as of December 31, 2022 were as follows (in thousands):


2023	$	9,734
2024	6,884
2025	3,850
2026	2,444
2027	1,817
After 2027	7,011
Total lease payments	31,740
Less: present value discount	(4,079)
Present value of lease liabilities	$	27,661

Segment Information (Tables)

12 Months Ended

Dec. 31, 2022

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

Measurements Used by Management to Assess Performance of Segments


	2022		2021		2020
























Total assets
Renewables	$	392,368	$	445,486	$	402,797
Residential	519,567		453,469		407,132
Agtech	193,966		212,038		216,274
Infrastructure	80,264		82,662		80,796
Unallocated corporate assets	24,448		21,246		28,057
Assets of discontinued operations	—		—		77,438
	$	1,210,613	$	1,214,901	$	1,212,494

Capital expenditures
Renewables	$	3,589	$	4,268	$	423
Residential	10,050		4,182		3,313
Agtech	3,177		3,289		720
Infrastructure	1,898		2,097		1,511
Unallocated corporate expenditures	1,424		3,869		7,101
	$	20,138	$	17,705	$	13,068

Disaggregation of Revenue

The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the years ended December 31 (in thousands):


	2022
	Renewables		Residential		Agtech		Infrastructure		Total
Net sales:
Point in Time	$	27,317	$	761,576	$	13,011	$	32,983	$	834,887
Over Time	350,250		5,672		155,857		43,300		555,079
Total	$	377,567	$	767,248	$	168,868	$	76,283	$	1,389,966

	2021
	Renewables		Residential		Agtech		Infrastructure		Total
Net sales:
Point in Time	$	28,630	$	630,494	$	20,157	$	32,512	$	711,793
Over Time	403,466		5,011		179,004		40,509		627,990
Total	$	432,096	$	635,505	$	199,161	$	73,021	$	1,339,783

	2020
	Renewables		Residential		Agtech		Infrastructure		Total
Net sales:
Point in Time	$	22,833	$	518,281	$	52,894	$	22,781	$	616,789
Over Time	215,274		4,533		156,566		39,416		415,789
Total	$	238,107	$	522,814	$	209,460	$	62,197	$	1,032,578

Net Sales by Region or Origin and Long-Lived Assets by Region of Domicile

Net sales by region or origin and long-lived assets by region of domicile for the years ended and as of December 31 are as follows (in thousands):


	2022		2021		2020
Net sales
North America	$	1,373,907	$	1,318,795	$	1,018,406

Asia	16,059		20,988		14,172
Total	$	1,389,966	$	1,339,783	$	1,032,578

Long-lived assets
North America	$	136,553	$	97,003	$	90,685

Asia	234		365		476
Total	$	136,787	$	97,368	$	91,161

Summary of Significant Accounting Policies (Summary of Activity Recorded within the Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 3,738	$ 3,529	$ 5,951
Bad debt expense, net of recoveries	1,221	898	1,321
Accounts written off against allowance and other adjustments	(1,213)	(689)	(4,128)
Ending balance	3,746	3,738	3,529
Cumulative Effect, Period of Adoption, Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 0	0	385
Ending balance		$ 0	$ 0

Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022 segment	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Sale Leaseback Transaction [Line Items]
Number of reportable segments		4
Advertising costs \| $		$ 10.9	$ 8.0	$ 7.2
Minimum \| Land, Buildings and Improvements
Sale Leaseback Transaction [Line Items]
Estimated useful lives		15 years
Minimum \| Machinery and Equipment
Sale Leaseback Transaction [Line Items]
Estimated useful lives		3 years
Maximum \| Land, Buildings and Improvements
Sale Leaseback Transaction [Line Items]
Estimated useful lives		40 years
Maximum \| Machinery and Equipment
Sale Leaseback Transaction [Line Items]
Estimated useful lives		20 years
Residential \| Home Improvement Retail Company \| Accounts Receivable \| Customer Concentration Risk
Sale Leaseback Transaction [Line Items]
Concentrations of credit risk			14.00%
Residential \| Home Improvement Retail Company \| Net sales \| Customer Concentration Risk
Sale Leaseback Transaction [Line Items]
Concentrations of credit risk		14.00%	13.00%	14.00%
Renewables and Agtech
Sale Leaseback Transaction [Line Items]
Number of reportable segments	2	2

Summary of Significant Accounting Policies (Summary of Interest Capitalized and Depreciation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Depreciation expense	$ 14,583	$ 13,110	$ 11,252

Revenue - Narrative (Details) - USD ($)	12 Months Ended
Revenue - Narrative (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Asset recognized related to incremental costs of obtaining a contract	$ 0	$ 0
Costs in excess of billings	41,732,000	54,437,000	$ 26,915,000
Unearned revenue	4,572,000	3,681,000	21,325,000
Revenue recognized which was in contract liabilities	44,400,000	53,000,000	57,800,000
Billings in excess of cost
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unearned revenue	$ 35,017,000	$ 46,711,000	$ 34,702,000
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract payment terms	30 days
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract payment terms	60 days
Remaining performance obligation expected timing of satisfaction	1 year

Revenue - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Costs in excess of billings	$ 41,732	$ 54,437	$ 26,915
Contract with customer liability	(4,572)	(3,681)	(21,325)
Billings in excess of cost
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer liability	$ (35,017)	$ (46,711)	$ (34,702)

Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Trade accounts receivable	$ 179,170	$ 185,745
Costs in excess of billings	41,732	54,437
Total contract receivables	220,902	240,182
Less allowance for doubtful accounts	(3,746)	(3,738)	$ (3,529)	$ (5,951)
Accounts receivable	$ 217,156	$ 236,444

Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Raw material	$ 111,187	$ 135,558
Work-in-process	17,944	5,858
Finished goods	47,523	39,256
Gross inventory	176,654	180,672
Less reserves	(6,294)	(4,465)
Total inventories	$ 170,360	$ 176,207

Inventories (Summary of Activity within the Reserve for Excess, Obsolete, and Slow Moving Inventory) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Inventory [Roll Forward]
Beginning balance	$ 4,400	$ 4,161	$ 3,463
Excess, obsolete and slow moving inventory expense	1,582	215	355
Scrapped inventory and other adjustments	(197)	(24)	(343)
Ending balance	$ 6,179	$ 4,400	$ 4,161

Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Land and land improvements	$ 4,704	$ 4,634
Building and improvements	43,416	42,526
Machinery and equipment	223,843	194,015
Construction in progress	13,065	20,293
Property, plant, and equipment, gross	285,028	261,468
Less: accumulated depreciation	(175,444)	(164,583)
Property, plant, and equipment, net	$ 109,584	$ 96,885

Acquisitions (Narrative) (Details) $ in Thousands						12 Months Ended
Acquisitions (Narrative) (Details) $ in Thousands	Aug. 22, 2022 USD ($)	Dec. 11, 2020 USD ($)	Oct. 15, 2020 USD ($)	Feb. 13, 2020 USD ($)	Jan. 15, 2020 USD ($)	Dec. 31, 2022 USD ($) business	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Goodwill						$ 512,363	$ 510,942	$ 514,279
Number of businesses acquired \| business						5
Renewables
Business Acquisition [Line Items]
Goodwill						$ 188,030	188,680	192,527
Number of businesses acquired \| business						2
Agtech
Business Acquisition [Line Items]
Goodwill						$ 83,599	85,132	84,622
Number of businesses acquired \| business						2
Residential
Business Acquisition [Line Items]
Goodwill						$ 209,056	$ 205,452	$ 205,452
Number of businesses acquired \| business						1
Quality Aluminum Products
Business Acquisition [Line Items]
Acquisition purchase price	$ 52,100
Goodwill	$ 3,604
TerraSmart LLC
Business Acquisition [Line Items]
Acquisition purchase price						$ 223,900
Goodwill						$ 140,997
Sunfig Corporation
Business Acquisition [Line Items]
Acquisition purchase price		$ 3,800
Goodwill		$ 3,500
Architectural Mailboxes LLC
Business Acquisition [Line Items]
Acquisition purchase price			$ 26,900
Goodwill			$ 7,400
Delta Separations, LLC
Business Acquisition [Line Items]
Acquisition purchase price				$ 47,100
Goodwill				$ 32,200
Thermo Energy Systems
Business Acquisition [Line Items]
Acquisition purchase price					$ 7,300
Goodwill					$ 19,100

Acquisitions (Schedule of Allocation of the Purchase Price Consideration of the Fair Value of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Aug. 22, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 15, 2020
Business Acquisition [Line Items]
Goodwill	$ 512,363		$ 510,942	$ 514,279
Quality Aluminum Products
Business Acquisition [Line Items]
Cash		$ 1,018
Working capital		23,759
Property, plant, and equipment		8,486
Acquired intangible assets		14,700
Other assets		1,813
Other liabilities	(1,295)
Goodwill		3,604
Fair value of purchase consideration		$ 52,085
TerraSmart LLC
Business Acquisition [Line Items]
Cash	1,491
Working capital	5,569
Property, plant, and equipment	11,446
Acquired intangible assets	64,150
Other assets	1,854
Other liabilities	(1,640)
Goodwill	140,997
Fair value of purchase consideration	$ 223,867
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc.
Business Acquisition [Line Items]
Cash					$ 179
Working capital					(15,377)
Property, plant, and equipment					1,740
Acquired intangible assets					38,066
Other current assets					1,528
Other assets					2,381
Other liabilities					(5,576)
Goodwill					62,161
Fair value of purchase consideration					$ 85,102

Acquisitions (Schedule of Acquired Intangible Assets) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Quality Aluminum Products
Business Acquisition [Line Items]
Fair Value	$ 14,700
Quality Aluminum Products \| Trademarks
Business Acquisition [Line Items]
Fair Value	2,800
Quality Aluminum Products \| Customer relationships
Business Acquisition [Line Items]
Fair Value	$ 11,900
Weighted-Average Amortization Period	12 years
TerraSmart LLC
Business Acquisition [Line Items]
Fair Value	$ 64,150
TerraSmart LLC \| Trademarks
Business Acquisition [Line Items]
Fair Value	20,830
TerraSmart LLC \| Technology
Business Acquisition [Line Items]
Fair Value	$ 1,940
Weighted-Average Amortization Period	12 years
TerraSmart LLC \| Customer relationships
Business Acquisition [Line Items]
Fair Value	$ 35,110
Weighted-Average Amortization Period	12 years
TerraSmart LLC \| Backlog
Business Acquisition [Line Items]
Fair Value	$ 6,270
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc.
Business Acquisition [Line Items]
Fair Value	38,066
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Trademarks
Business Acquisition [Line Items]
Fair Value	8,100
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Trademarks
Business Acquisition [Line Items]
Fair Value	$ 1,177
Weighted-Average Amortization Period	3 years
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Technology
Business Acquisition [Line Items]
Fair Value	$ 8,345
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Technology \| Minimum
Business Acquisition [Line Items]
Weighted-Average Amortization Period	5 years
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Technology \| Maximum
Business Acquisition [Line Items]
Weighted-Average Amortization Period	15 years
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Customer relationships
Business Acquisition [Line Items]
Fair Value	$ 18,480
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Customer relationships \| Minimum
Business Acquisition [Line Items]
Weighted-Average Amortization Period	11 years
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Customer relationships \| Maximum
Business Acquisition [Line Items]
Weighted-Average Amortization Period	13 years
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Non-compete agreements
Business Acquisition [Line Items]
Fair Value	$ 1,036
Weighted-Average Amortization Period	5 years
Sunfig Corporation, Architectural Mailboxes, LLC, Delta Separations, LLC, and Thermo Energy Systems Inc. \| Backlog
Business Acquisition [Line Items]
Fair Value	$ 928
Weighted-Average Amortization Period	1 year

Acquisitions (Acquisition Related Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Total acquisition related costs	$ 1,972	$ 949	$ 3,864
Cost of sales
Business Acquisition [Line Items]
Total acquisition related costs	1,427	0	634
Selling, general and administrative costs
Business Acquisition [Line Items]
Total acquisition related costs	$ 545	$ 949	$ 3,230

Goodwill and Related Intangible Assets (Schedule of Changes in Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Balance at	$ 510,942	$ 514,279
Acquired goodwill	3,604
Adjustments to prior year acquisitions	904	(2,110)
Foreign currency translation	(3,087)	(1,227)
Balance at	512,363	510,942
Renewables
Goodwill [Roll Forward]
Balance at	188,680	192,527
Acquired goodwill	0
Adjustments to prior year acquisitions	904	(2,433)
Foreign currency translation	(1,554)	(1,414)
Balance at	188,030	188,680
Residential
Goodwill [Roll Forward]
Balance at	205,452	205,452
Acquired goodwill	3,604
Adjustments to prior year acquisitions	0	0
Foreign currency translation	0	0
Balance at	209,056	205,452
Agtech
Goodwill [Roll Forward]
Balance at	85,132	84,622
Acquired goodwill	0
Adjustments to prior year acquisitions	0	323
Foreign currency translation	(1,533)	187
Balance at	83,599	85,132
Infrastructure
Goodwill [Roll Forward]
Balance at	31,678	31,678
Acquired goodwill	0
Adjustments to prior year acquisitions	0	0
Foreign currency translation	0	0
Balance at	$ 31,678	$ 31,678

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

Goodwill and Related Intangible Assets (Narrative) (Details)		12 Months Ended
	Oct. 31, 2021 reporting_unit	Dec. 31, 2022 USD ($) reporting_unit	Dec. 31, 2021 USD ($) reporting_unit	Dec. 31, 2020 reporting_unit
Goodwill [Line Items]
Accumulated impairment losses		$ 133,200,000	$ 133,200,000
Goodwill impairment		$ 0	$ 0
Number of reporting units \| reporting_unit	8
Carrying amount in excess of fair value, number of reporting units \| reporting_unit		0	0	0
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]			Goodwill and Intangible Asset Impairment
Trademarks
Goodwill [Line Items]
Impairment of indefinite-lived intangibles		$ 8,300,000

Goodwill and Related Intangible Assets (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	$ 157,107	$ 162,472
Total acquired intangible assets, Gross Carrying Amount	212,607	215,172
Accumulated Amortization, Finite-lived intangible assets	75,081	73,668
Total acquired intangible assets, Accumulated Amortization	75,081	73,668
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	5,448	5,521
Accumulated Amortization, Finite-lived intangible assets	4,481	4,011
Unpatented technology and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	34,163	38,474
Accumulated Amortization, Finite-lived intangible assets	22,037	20,656
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	115,125	108,591
Accumulated Amortization, Finite-lived intangible assets	46,557	39,832
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	2,371	2,686
Accumulated Amortization, Finite-lived intangible assets	2,006	1,969
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	0	7,200
Accumulated Amortization, Finite-lived intangible assets	0	7,200
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Indefinite-lived intangible assets	55,500	52,700
Accumulated Amortization, Indefinite-lived intangible assets	$ 0	$ 0

Goodwill and Related Intangible Assets (Schedule of Impairment Charges) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Trademarks
Finite-Lived Intangible Assets [Line Items]
Impairment of indefinite-lived intangibles	$ 8.3

Goodwill and Related Intangible Assets (Schedule of Amortization Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 11,584	$ 18,856	$ 9,663

Goodwill and Related Intangible Assets (Schedule of Future Amortization Expense) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020	$ 11,102
2021	10,922
2022	10,782
2023	9,370
2024	$ 7,728

Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accrued Liabilities, Current [Abstract]
Customer rebates	$ 16,768	$ 15,253
Current portion of MSPP liabilities	2,267	2,947
Insurance	6,440	7,310
Accrued warranties	6,251	5,686
Compensation	17,010	15,293
Interest and taxes	5,696	5,463
Current operating lease liability	8,620	7,239
Unearned revenue	4,572	3,681	$ 21,325
Other	6,097	5,121
Total accrued expenses	$ 73,721	$ 67,993
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses	Accrued expenses

Debt (Schedule of Long-term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Less unamortized debt issuance costs	$ (2,238)	$ (719)
Total debt	88,762	23,781
Revolving Credit Facility \| 2019 Senior Credit Agreement
Debt Instrument [Line Items]
Long term debt gross	$ 91,000	$ 24,500

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

Debt (Narrative) (Details)	Dec. 08, 2022 USD ($) debtCovenant	Jan. 24, 2019 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Carrying value of outstanding debt			$ 88,762,000	$ 23,781,000
2022 Senior Credit Agreement \| Applicable rate through March 31, 2023
Debt Instrument [Line Items]
Annual commitment fee (as a percentage)	0.20%
2022 Senior Credit Agreement \| Base Rate \| Applicable rate through March 31, 2023
Debt Instrument [Line Items]
Initial applicable margin	0.125%
2022 Senior Credit Agreement \| Secured Overnight Financing Rate (SOFR) \| Applicable rate through March 31, 2023
Debt Instrument [Line Items]
Initial applicable margin	1.125%
2022 Senior Credit Agreement \| Minimum \| Applicable rate after April 1, 2023
Debt Instrument [Line Items]
Annual commitment fee (as a percentage)	0.20%
2022 Senior Credit Agreement \| Minimum \| Base Rate \| Applicable rate after April 1, 2023
Debt Instrument [Line Items]
Initial applicable margin	0.125%
2022 Senior Credit Agreement \| Minimum \| Secured Overnight Financing Rate (SOFR) \| Applicable rate after April 1, 2023
Debt Instrument [Line Items]
Initial applicable margin	1.125%
2022 Senior Credit Agreement \| Maximum \| Applicable rate after April 1, 2023
Debt Instrument [Line Items]
Annual commitment fee (as a percentage)	0.25%
2022 Senior Credit Agreement \| Maximum \| Base Rate \| Applicable rate after April 1, 2023
Debt Instrument [Line Items]
Initial applicable margin	1.00%
2022 Senior Credit Agreement \| Maximum \| Secured Overnight Financing Rate (SOFR) \| Applicable rate after April 1, 2023
Debt Instrument [Line Items]
Initial applicable margin	2.00%
Senior Credit Agreement \| Standby Letters of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity under the revolving credit facility			4,500,000
Senior Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Carrying value of outstanding debt			91,000,000	24,500,000
Availability amount			$ 304,500,000	$ 369,300,000
Revolving Credit Facility \| 2022 Senior Credit Agreement
Debt Instrument [Line Items]
Current borrowing capacity	$ 400,000,000
Maximum borrowing capacity under the revolving credit facility	$ 700,000,000
Number of debt covenants \| debtCovenant	2
Revolving Credit Facility \| 2019 Senior Credit Agreement
Debt Instrument [Line Items]
Current borrowing capacity		$ 400,000,000
Maximum borrowing capacity under the revolving credit facility		$ 700,000,000
Revolving Credit Facility \| 2019 Senior Credit Agreement \| Minimum
Debt Instrument [Line Items]
Annual commitment fee		0.15%
Revolving Credit Facility \| 2019 Senior Credit Agreement \| Minimum \| LIBOR
Debt Instrument [Line Items]
LIBOR floor, plus		1.125%
Revolving Credit Facility \| 2019 Senior Credit Agreement \| Maximum
Debt Instrument [Line Items]
Annual commitment fee		0.25%
Revolving Credit Facility \| 2019 Senior Credit Agreement \| Maximum \| LIBOR
Debt Instrument [Line Items]
LIBOR floor, plus		2.00%
Term Loan \| 2022 Senior Credit Agreement
Debt Instrument [Line Items]
Term loan (up to)	$ 300,000,000
Term Loan \| 2019 Senior Credit Agreement
Debt Instrument [Line Items]
Term loan (up to)		$ 300,000,000

Debt (Schedule of Cash Paid for Interest) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Long-Term Debt, Unclassified [Abstract]
Interest expense, net	$ (4,047)	$ (1,639)	$ (703)
Interest income	174	269	276
Other non-cash adjustments	(679)	(345)	(345)
Cash paid for interest	$ 3,542	$ 1,563	$ 634

Pension and Other Postretirement Benefits (Schedule of Total Expense for All Retirement Plans) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) plan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Total retirement plan expense	$ 4,001	$ 3,685	$ 2,824
401(k) plan
Defined Benefit Plan Disclosure [Line Items]
Total retirement plan expense	3,580	3,196	2,403
Multiemployer and other defined benefit and pension plans
Defined Benefit Plan Disclosure [Line Items]
Total retirement plan expense	$ 79	78	70
Number of plans \| plan	1
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Total retirement plan expense	$ 342	$ 411	$ 351

Pension and Other Postretirement Benefits (Changes in the Accumulated Postretirement Benefit Obligation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Plan amendments	$ 0	$ 162
Other Postretirement Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at	6,202	6,443
Service cost	0	0	$ 10
Interest cost	127	125	172
Actuarial losses (gains)	(1,784)	(200)
Benefits paid	(316)	(328)
Projected benefit obligation at	4,229	6,202	$ 6,443
Fair value of plan assets	0	0
Under funded status	(4,229)	(6,202)
Unamortized prior service cost	352	412
Unrecognized actuarial gain	(278)	1,530
Net amount recognized	$ (4,155)	$ (4,260)

Pension and Other Postretirement Benefits (Amounts Recognized in the Consolidated Financial Statements) (Details) - Other Postretirement Benefits - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accrued post retirement liability: Current portion	$ 353	$ 358
Accrued post retirement liability: Long term portion	3,876	5,844
Pre-tax accumulated other comprehensive loss – unamortized post-retirement healthcare costs	74	1,942
Net amount recognized	$ 4,155	$ 4,260

Pension and Other Postretirement Benefits (Components of Net Periodic Postretirement Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Ultimate healthcare trend rates	4.00%	3.80%	3.80%
Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 0	$ 0	$ 10
Interest cost	127	125	172
Amortization of unrecognized prior service cost	60	44	44
Loss amortization (2)	24	113	64
Net periodic pension cost	$ 211	$ 282	$ 290
Discount rate	4.80%	2.40%	2.00%
Annual rate of increase in the per capita cost of: Medical costs before age 65	7.80%	7.00%	7.00%
Annual rate of increase in the per capita cost of: Medical costs after age 65	4.50%	4.50%	4.50%
Annual rate of increase in the per capita cost of: Prescription drug costs	7.80%	7.00%	7.00%

Pension and Other Postretirement Benefits (Expected Benefit Payments from the Plan) (Details) - Unamortized Post-Retirement Health Care Costs $ in Thousands	Dec. 31, 2022 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2023	$ 353,000
2024	357,000
2025	369,000
2026	359,000
2027	355,000
Years 2028 - 2032	$ 1,649,000

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (607)	$ (3,298)
Balance at end of period	(3,777)	(607)	$ (3,298)
Tax (Benefit) Expense
Balance at beginning of period	(794)	(837)
Tax (Benefit) Expense	449	43
Balance at end of period	(345)	(794)	(837)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	187	(2,461)
Minimum post retirement benefit plan adjustments	1,403	136
Foreign currency translation adjustment	3,619	(2,648)	(2,930)
Balance at end of period	(3,432)	187	(2,461)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	1,640	(872)
Other Comprehensive Income (Loss), before Tax	(5,022)	2,512
Balance at end of period	(3,382)	1,640	(872)
Tax (Benefit) Expense
Tax (Benefit) Expense	0	0
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Foreign currency translation adjustment	(5,022)	2,512
Minimum post retirement benefit plan adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(2,247)	(2,426)
Other Comprehensive Income (Loss), before Tax	(1,852)	(179)
Balance at end of period	$ (395)	$ (2,247)	$ (2,426)

Equity-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	May 04, 2022	May 03, 2022	May 04, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	0	0	0
Market price of common stock, per share	$ 45.88
Unrecognized compensation cost	$ 9.3
Weighted average cost recognition period, in years	2 years 3 months 18 days
Accrued equity based compensation	$ 15.4	$ 22.6
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Typical vesting period, in years	4 years
Performance stock units (1)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	108,464
Forfeited in period (in shares)	50,208
Performance stock units outstanding (in shares)	211,368	363,474
Performance stock units (1) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award performance period		3 years
Performance Shares, Market Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	0		0
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded (in shares)	132,430
Forfeited in period (in shares)	17,930
Performance stock units outstanding (in shares)	235,370	204,584
Accrued equity based compensation	$ 13.4	$ 20.7
2018 Plan \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized						1,000,000
2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance under the Plan	326,000
2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance under the Plan	80,000
Non-Employee Directors Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance under the Plan	101,000
Non-Employee Directors Plan \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized				200,000	100,000
Management Stock Purchase Plan \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement By Share-based Payment Award, Average Company Stock Price, Measurement Period	200 days
Accrued Expenses, Current
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrued equity based compensation	$ 2.3	2.9
Non Current Liabilities
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrued equity based compensation	$ 13.1	$ 19.7

Equity-Based Compensation (Summary of Compensation Expense Connection with Awards) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense recognized under the Prior Plan	$ 19	$ 29	$ 40
Expense recognized under the Non-Employee Directors Plan	770	840	760
Total stock compensation expense	8,334	8,652	8,173
Tax benefits recognized related to stock compensation expense	2,175	2,189	2,272
2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense recognized under the Plan	1,617	1,186	1,932
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense recognized under the Plan	$ 5,928	$ 6,597	$ 5,441

Equity-Based Compensation (Schedule of Number of Awards and Weighted Average Grant Date Fair Value) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	2,460
Weighted Average Grant Date Fair Value (in USD per share)	$ 42.69
Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	15,652
Weighted Average Grant Date Fair Value (in USD per share)	$ 42.49
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	132,430
Weighted Average Grant Date Fair Value (in USD per share)	$ 43.92
Performance stock units (1)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	108,464
Weighted Average Grant Date Fair Value (in USD per share)	$ 47.00
2019 \| Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	2,460
Weighted Average Grant Date Fair Value (in USD per share)	$ 42.69
2019 \| Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	15,652
Weighted Average Grant Date Fair Value (in USD per share)	$ 42.49
2019 \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	132,430
Weighted Average Grant Date Fair Value (in USD per share)	$ 43.92
2019 \| Performance stock units (1)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)	108,464
Weighted Average Grant Date Fair Value (in USD per share)	$ 47.00
2018 \| Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)		7,536
Weighted Average Grant Date Fair Value (in USD per share)		$ 83.58
2018 \| Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)		2,512
Weighted Average Grant Date Fair Value (in USD per share)		$ 83.58
2018 \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)		72,243
Weighted Average Grant Date Fair Value (in USD per share)		$ 79.28
2018 \| Performance stock units (1)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)		62,778
Weighted Average Grant Date Fair Value (in USD per share)		$ 87.84
2017 \| Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)			12,402
Weighted Average Grant Date Fair Value (in USD per share)			$ 45.98
2017 \| Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)			4,134
Weighted Average Grant Date Fair Value (in USD per share)			$ 45.98
2017 \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)			81,397
Weighted Average Grant Date Fair Value (in USD per share)			$ 56.81
2017 \| Performance stock units (1)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Awards (in shares)			160,426
Weighted Average Grant Date Fair Value (in USD per share)			$ 55.98

Equity-Based Compensation (Summary of Ranges of Outstanding and Exercisable Options) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2019
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstanding	5,000	41,500	5,000	117,409
Weighted Average Remaining Contractual Life (in years)	4 years 3 months 3 days
Weighted Average Exercise Price	$ 0	$ 14.73
$39.55
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 39.55
Options Outstanding	5,000
Weighted Average Remaining Contractual Life (in years)	4 years 3 months 3 days
Weighted Average Exercise Price	$ 39.55
Options Exercisable	5,000
Weighted Average Exercise Price	$ 39.55

Equity-Based Compensation (Summary of Stock Option Transactions) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Options (in shares):
Beginning balance (in shares)	5,000	41,500	117,409
Exercised (in shares)	0		(75,909)
Forfeited (in shares)		(36,500)
Ending balance (in shares)	5,000	5,000	41,500
Weighted Average Exercise Price (in dollars per share)
Begininng balance (in dollars per share)	$ 39.55	$ 29.38	$ 19.91
Exercised (in dollars per share)	0		14.73
Forfeited (in dollars per share)		27.99
Ending balance (in dollars per share)	$ 39.55	$ 39.55	$ 29.38
Weighted Average Remaining Contractual Life (in years)	4 years 3 months 3 days
Aggregate Intrinsic Value	$ 31,650

Equity-Based Compensation (Summary of Information about Restricted Stock Units and Weighted Average Grant Date Fair Value) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Weighted Average Grant Date Fair Value (in dollars per share)
Shares for which performance condition was not achieved (in shares)	55,959	9,250
Restricted stock units
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period (in shares)	204,584
Granted (in shares)	132,430
Adjustments (in shares)	0
Vested (in shares)	(83,714)
Forfeited (in shares)	(17,930)
Balance at end of period (in shares)	235,370	204,584
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period (in USD per share)	$ 52.90
Granted (in USD per share)	43.92
Adjustments (in USD per share)	0
Vested (in USD per share)	45.77
Forfeited (in USD per share)	59.62
Balance at end of period (in USD per share)	$ 49.87	$ 52.90
Common stock
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period (in shares)	0
Granted (in shares)	15,652
Adjustments (in shares)	0
Vested (in shares)	(15,652)
Forfeited (in shares)	0
Balance at end of period (in shares)	0	0
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period (in USD per share)	$ 0
Granted (in USD per share)	42.49
Adjustments (in USD per share)	0
Vested (in USD per share)	42.49
Forfeited (in USD per share)	0
Balance at end of period (in USD per share)	$ 0	$ 0
Performance stock units (1)
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period (in shares)	363,474
Granted (in shares)	108,464
Adjustments (in shares)	(65,209)
Vested (in shares)	(145,153)
Forfeited (in shares)	(50,208)
Balance at end of period (in shares)	211,368	363,474
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period (in USD per share)	$ 55.44
Granted (in USD per share)	47.00
Adjustments (in USD per share)	82.75
Vested (in USD per share)	41.28
Forfeited (in USD per share)	61.51
Balance at end of period (in USD per share)	$ 50.96	$ 55.44
Deferred Stock Units
Restricted Stock Units / Restricted Stock (in shares)
Balance at beginning of period (in shares)	52,472
Granted (in shares)	2,460
Adjustments (in shares)	0
Vested (in shares)	(14,582)
Forfeited (in shares)	0
Balance at end of period (in shares)	40,350	52,472
Weighted Average Grant Date Fair Value (in dollars per share)
Balance at beginning of period (in USD per share)	$ 43.99
Granted (in USD per share)	42.69
Adjustments (in USD per share)	0
Vested (in USD per share)	40.53
Forfeited (in USD per share)	0
Balance at end of period (in USD per share)	$ 45.16	$ 43.99
Minimum \| Performance stock units (1)
Weighted Average Grant Date Fair Value (in dollars per share)
Percent of grants awarded based on target threshold	0.00%
Award performance period		2 years
Maximum \| Performance stock units (1)
Weighted Average Grant Date Fair Value (in dollars per share)
Percent of grants awarded based on target threshold	200.00%
Award performance period		3 years
2015 Equity Incentive Plan \| Gross Profit Threshold \| Performance stock units (1)
Weighted Average Grant Date Fair Value (in dollars per share)
Award performance period	3 years
2015 Equity Incentive Plan \| Total Shareholder Return \| Performance stock units (1)
Weighted Average Grant Date Fair Value (in dollars per share)
Award performance period	3 years
2018 Plan \| Return On Invested Capital \| Performance stock units (1)
Weighted Average Grant Date Fair Value (in dollars per share)
Award performance period	1 year

Equity-Based Compensation (Aggregate Intrinsic Value of Options Exercised and Aggregate Fair Value of Restricted Stock Units and Restricted Shares that Vested) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercised	$ 0	$ 2,103	$ 3,812
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value	3,920	6,320	11,851
Common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value	665	370	190
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value	6,729	9,080	4,197
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value	$ 105	$ 630	$ 570

Equity-Based Compensation (Cash Paid to Settle Liability Awards) (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
MSPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units credited	$ 3,689	$ 4,915	$ 15,401
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units credited (in shares)	12,365	30,475	57,046
Restricted stock units balance, vested and unvested (in shares)	158,644	223,892	231,343
Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
MSPP (recovery) expense (in thousands)	$ (4,459)	$ 6,034	$ 4,518

Fair Value Measurements (Narrative) (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Extinguishment of Debt [Line Items]
Carrying value of outstanding debt	$ 88,762,000	$ 23,781,000
Revolving Credit Facility \| Senior Credit Agreement
Extinguishment of Debt [Line Items]
Carrying value of outstanding debt	$ 91,000,000	$ 24,500,000

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details

Discontinued Operations (Schedule of Disposal Group) (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations - Processing Business - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets held for sale
Accounts receivable, net of allowance	$ 266
Inventories, net of reserves	6,748
Other current assets	1,999
Property, plant, and equipment, net	331
Operating lease asset	495
Acquired intangibles, net	6,213
Valuation allowance	(13,990)	$ 0
Total assets held for sale	2,062
Liabilities held for sale
Accounts payable	733
Accrued expenses	1,159
Non-current operating lease liabilities	70
Total liabilities held for sale	$ 1,962

Discontinued Operations (Net Sales and Operating Loss for Held for Sale Operations) (Details) - Processing Business - Disposal Group, Held-for-sale, Not Discontinued Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 7,840	$ 20,328
Operating loss	$ (6,769)	$ (3,539)

Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands			12 Months Ended
	Feb. 23, 2021	Jun. 30, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal			$ (13,990)	$ 0	$ 0
Apartment Tour Application Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal		$ 1,900
Cash proceeds from sale of business		$ 2,000
Discontinued Operations, Disposed of by Sale \| Industrial Business Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds of sale of business	$ 38,000
Seller note principal amount	13,000
Estimated pre-tax loss	30,000
Gain (loss) on disposal	$ (29,600)
Disposal Group, Held-for-sale, Not Discontinued Operations \| Processing Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Valuation allowance			$ 13,990	$ 0

Discontinued Operations (Components of Income from Discontinued Operations before Taxes, Including the Interest Allocated to Discontinued Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Held for sale valuation allowance	$ 13,990	$ 0	$ 0
(Loss) income before taxes	0	1,479	(16,602)
Discontinued Operations, Held-for-sale \| Industrial Business Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	20,391	128,915
Operating expenses	0	17,493	115,822
Held for sale valuation allowance	0	1,419	29,600
Interest expense allocation	0	0	95
(Loss) income before taxes	$ 0	$ 1,479	$ (16,602)

- Definition

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

+ References + Details

Exit Activity Costs and Asset Impairments (Narrative) (Details) $ in Thousands		12 Months Ended
	Jun. 30, 2020 USD ($)	Dec. 31, 2022 USD ($) facility	Dec. 31, 2021 USD ($) facility	Dec. 31, 2020 USD ($) facility
Restructuring Cost and Reserve [Line Items]
Number of consolidated facilities to be closed \| facility		2	4	2
Held for sale valuation allowance		$ (13,990)	$ 0	$ 0
Apartment Tour Application Business
Restructuring Cost and Reserve [Line Items]
Cash proceeds from sale of business	$ 2,000
Held for sale valuation allowance	$ 1,900

Exit Activity Costs and Asset Impairments (Schedule Of Asset Impairment Charges Related To Restructuring Activities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Exit activity costs (recoveries)	$ 6,039	$ 7,020	$ 2,207
Asset impairment charges	2,276	1,193	81
Restructuring charges	8,315	8,213	2,288
Corporate
Restructuring Cost and Reserve [Line Items]
Exit activity costs (recoveries)	250	145	375
Asset impairment charges	0	0	0
Restructuring charges	250	145	375
Renewables \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit activity costs (recoveries)	3,256	4,769	15
Asset impairment charges	1,198	1,193	0
Restructuring charges	4,454	5,962	15
Residential \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit activity costs (recoveries)	1,825	393	731
Asset impairment charges	12	0	9
Restructuring charges	1,837	393	740
Infrastructure \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit activity costs (recoveries)	(63)	26	226
Asset impairment charges	0	0	0
Restructuring charges	(63)	26	226
Agtech \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Exit activity costs (recoveries)	771	1,687	860
Asset impairment charges	1,066	0	72
Restructuring charges	$ 1,837	$ 1,687	$ 932

Exit Activity Costs and Asset Impairments (Summary Of Exit Activity Costs And Asset Impairments Recorded in the Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 8,315	$ 8,213	$ 2,288
Cost of sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5,258	6,176	1,059
Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 3,057	$ 2,037	$ 1,229

Exit Activity Costs and Asset Impairments (Reconciles Of Liability For Exit Activity Costs Relating To Facility Consolidation Efforts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Balance as of	$ 272	$ 1,030
Exit activity costs recognized	6,039	7,020	$ 2,207
Cash payments	(3,894)	(7,778)
Balance as of	$ 2,417	$ 272	$ 1,030

Income Taxes (Components of Income (Loss) before Taxes from Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Domestic	$ 112,635	$ 93,155	$ 108,930
Foreign	(1,145)	6,407	(1,171)
Income before taxes	$ 111,490	$ 99,562	$ 107,759

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126941158&loc=d3e41242-110953

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(8))
-URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI https://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 9: http://www.xbrl.org/2003/role/exampleRef
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-URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

Income Taxes (Benefit of) Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current:
Provision for income taxes	$ 0	$ 366	$ 2,123
Deferred:
Total deferred	6,337	2,968	3,786
Provision for income taxes	29,084	25,046	24,468
Continuing Operations
Current:
U.S. Federal	17,014	16,137	16,505
State	5,647	5,009	4,071
Foreign	86	932	106
Total current	22,747	22,078	20,682
Deferred:
U.S. Federal	5,259	1,766	3,620
State	1,381	134	672
Foreign	(303)	1,068	(506)
Total deferred	6,337	2,968	3,786
Provision for income taxes	29,084	25,046	24,468
Discontinued Operations
Current:
U.S. Federal	0	362	1,345
State	0	139	57
Foreign	0	214	1,725
Total current	0	715	3,127
Provision for income taxes	0	366	2,123
Deferred:
U.S. Federal	0	(340)	(876)
State	0	2	10
Foreign	0	(11)	(138)
Total deferred	$ 0	$ (349)	$ (1,004)

Income Taxes (Provision for Income Taxes from Continuing Operations Differs from the Federal Statutory Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory rate	$ 23,413	$ 20,908	$ 22,629
State taxes, less federal effect	5,541	4,068	3,650
Federal tax credits	(549)	(587)	(1,064)
Excess tax benefit on stock based compensation	(214)	(2,039)	(1,674)
Executive compensation	960	1,781	1,114
Change in valuation allowance	0	0	(130)
Other	(67)	915	(57)
Provision for income taxes	$ 29,084	$ 25,046	$ 24,468
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory rate	21.00%	21.00%	21.00%
State taxes, less federal effect	5.00%	4.10%	3.40%
Federal tax credits	(0.50%)	(0.60%)	(1.00%)
Excess tax benefit on stock based compensation	(0.20%)	(2.00%)	(1.60%)
Executive compensation	0.90%	1.80%	1.00%
Change in valuation allowance	0.00%	0.00%	(0.10%)
Other	(0.10%)	0.90%	0.00%
Effective income tax rate, percentage	26.10%	25.20%	22.70%

Income Taxes (Deferred Tax Liabilities (Assets)) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Depreciation	$ 14,570	$ 9,633
Goodwill	62,132	48,265
Intangible assets	3,706	1,657
Other	8,133	5,298
Gross deferred tax liabilities	88,541	64,853
Capital loss carryforward	(26,490)	(27,328)
Equity compensation	(5,993)	(8,236)
Assets held for sale	(13,669)	0
Capitalized research and development costs	(4,503)	0
Other	(17,493)	(15,641)
Gross deferred tax assets	(68,148)	(51,205)
Valuation allowances	26,488	26,581
Deferred tax assets, net of valuation allowances	(41,660)	(24,624)
Net deferred tax liabilities	$ 46,881	$ 40,229

Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Statutory tax rate, percentage	21.00%	21.00%	21.00%
Deferred tax assets, net of operating losses	$ 7,900,000
Deferred tax assets, net of operating losses	700,000
Undistributed earnings of foreign subsidiaries	2,200,000
Capital loss carryforward	110,000,000	$ 113,700,000
Amended returns		3,700,000
Deferred tax assets, capital loss carryforwards	26,500,000
Interest and penalties recognized	$ 0	$ 0	$ 0
Minimum
Operating Loss Carryforwards [Line Items]
Statute of limitations expiration period, in years	4 years
Maximum
Operating Loss Carryforwards [Line Items]
Statute of limitations expiration period, in years	10 years
Federal
Operating Loss Carryforwards [Line Items]
Deferred tax assets, net of operating losses	$ 400,000
Deferred tax assets, net of operating losses	100,000
Deferred tax assets, capital loss carryforwards	22,200,000
State
Operating Loss Carryforwards [Line Items]
Deferred tax assets, net of operating losses	6,600,000
Deferred tax assets, net of operating losses	400,000
Deferred tax assets, capital loss carryforwards	4,300,000
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Deferred tax assets, net of operating losses	900,000
Deferred tax assets, net of operating losses	$ 200,000

Income Taxes (Summary of Valuation Allowance) (Details) - Deferred Tax Valuation Allowance - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of January 1	$ 26,581	$ 111	$ 298
Cost charged to the tax provision	10	13	70
Reductions	(103)	(41)	(248)
Reclassification from discontinued operations upon sale of industrial group	0	26,498	0
Currency translation	0	0	(9)
Balance as of December 31	$ 26,488	$ 26,581	$ 111

Income Taxes (Income Taxes Paid, Net of Tax Refunds) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Payments made for income taxes, net	$ 27,017	$ 22,076	$ 21,351

Earnings per Share (Narrative) (Details) - shares	12 Months Ended
Earnings per Share (Narrative) (Details) - shares	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive number of shares	43,000	0	13,000

Earnings per Share (Schedule of Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Income from continuing operations	$ 82,406	$ 74,516	$ 83,291
Income (loss) from discontinued operations	0	1,113	(18,725)
Net income	$ 82,406	$ 75,629	$ 64,566
Weighted average shares outstanding (in shares)	32,096	32,873	32,664
Common stock options and restricted stock (in shares)	96	181	254
Weighted average shares and conversions (in shares)	32,192	33,054	32,918

- Definition

Amount after tax of income (loss) from continuing operations attributable to the parent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

- Definition

Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Leases - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Cumulative effect of new accounting principle in period of adoption	$ 822,099	$ 825,258	$ 743,805	$ 673,964
Cumulative Effect, Period of Adoption, Adjustment
Lessee, Lease, Description [Line Items]
Cumulative effect of new accounting principle in period of adoption				(291)
Minimum
Lessee, Lease, Description [Line Items]
Lease renewal term	1 month
Maximum
Lessee, Lease, Description [Line Items]
Lease renewal term	15 years
Retained Earnings
Lessee, Lease, Description [Line Items]
Cumulative effect of new accounting principle in period of adoption	$ 627,978	$ 545,572	$ 469,943	405,668
Retained Earnings \| Cumulative Effect, Period of Adoption, Adjustment
Lessee, Lease, Description [Line Items]
Cumulative effect of new accounting principle in period of adoption				$ (291)

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Leases - Assets and Liabilities of Lessee (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease assets	$ 26,502	$ 18,120
Current operating lease liability	8,620	7,239
Non-current operating lease liabilities	19,041	11,390
Total operating lease liability	$ 27,661	$ 18,629

Leases - Schedule of Lease Cost and Assumptions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 11,191	$ 10,977	$ 10,005
Short-term lease cost	5,694	7,153	996
Total lease cost	16,885	18,130	11,001
Cash paid for amounts included in the measurement of operating liabilities	8,835	9,431	9,502
Right-of-use assets obtained in exchange for new lease liabilities	$ 17,008	$ 1,084	$ 12,745
Weighted-average remaining lease term - operating leases	5 years 3 months 18 days	3 years
Weighted-average discount rate - operating leases	500.00%	520.00%

Leases - Maturity of Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
2023	$ 9,734
2024	6,884
2025	3,850
2026	2,444
2027	1,817
After 2027	7,011
Total lease payments	31,740
Less: present value discount	(4,079)
Present value of lease liabilities	$ 27,661	$ 18,629

Segment Information (Narrative) (Details)	12 Months Ended
Segment Information (Narrative) (Details)	Dec. 31, 2022 segment
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Number of reportable segments	4

Segment Information (Measurements Used by Management to Assess Performance of Segments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	$ 1,389,966	$ 1,339,783	$ 1,032,578
Income from operations:	130,102	96,988	107,190
Depreciation and amortization	26,167	31,966	20,915
Total assets	1,210,613	1,214,901	1,212,494
Capital expenditures	20,138	17,705	13,068
Discontinued Operations
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total assets	0	0	77,438
Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Income from operations:	163,618	133,959	142,401
Unallocated Corporate Expenses
Segment Reporting, Other Significant Reconciling Item [Line Items]
Income from operations:	(33,516)	(36,971)	(35,211)
Depreciation and amortization	1,190	219	300
Total assets	24,448	21,246	28,057
Capital expenditures	1,424	3,869	7,101
Renewables
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	377,567	432,096	238,107
Renewables \| Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	377,567	432,096	238,107
Income from operations:	25,243	20,158	30,105
Depreciation and amortization	8,467	14,682	3,377
Total assets	392,368	445,486	402,797
Capital expenditures	3,589	4,268	423
Residential
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	767,248	635,505	522,814
Residential \| Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	767,248	635,505	522,814
Income from operations:	126,458	105,821	94,430
Depreciation and amortization	8,983	8,694	8,110
Total assets	519,567	453,469	407,132
Capital expenditures	10,050	4,182	3,313
Agtech
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	168,868	199,161	209,460
Agtech \| Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	168,868	199,161	209,460
Income from operations:	2,914	(931)	10,633
Depreciation and amortization	4,377	5,279	6,068
Total assets	193,966	212,038	216,274
Capital expenditures	3,177	3,289	720
Infrastructure
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	76,283	73,021	62,197
Infrastructure \| Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	76,283	73,021	62,197
Income from operations:	9,003	8,911	7,233
Depreciation and amortization	3,150	3,092	3,060
Total assets	80,264	82,662	80,796
Capital expenditures	$ 1,898	$ 2,097	$ 1,511

Segment Information (Net Sales by Contract Type) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales:	$ 1,389,966	$ 1,339,783	$ 1,032,578
Renewables
Disaggregation of Revenue [Line Items]
Net sales:	377,567	432,096	238,107
Residential
Disaggregation of Revenue [Line Items]
Net sales:	767,248	635,505	522,814
Agtech
Disaggregation of Revenue [Line Items]
Net sales:	168,868	199,161	209,460
Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	76,283	73,021	62,197
Point in Time
Disaggregation of Revenue [Line Items]
Net sales:	834,887	711,793	616,789
Point in Time \| Renewables
Disaggregation of Revenue [Line Items]
Net sales:	27,317	28,630	22,833
Point in Time \| Residential
Disaggregation of Revenue [Line Items]
Net sales:	761,576	630,494	518,281
Point in Time \| Agtech
Disaggregation of Revenue [Line Items]
Net sales:	13,011	20,157	52,894
Point in Time \| Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	32,983	32,512	22,781
Over Time
Disaggregation of Revenue [Line Items]
Net sales:	555,079	627,990	415,789
Over Time \| Renewables
Disaggregation of Revenue [Line Items]
Net sales:	350,250	403,466	215,274
Over Time \| Residential
Disaggregation of Revenue [Line Items]
Net sales:	5,672	5,011	4,533
Over Time \| Agtech
Disaggregation of Revenue [Line Items]
Net sales:	155,857	179,004	156,566
Over Time \| Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	$ 43,300	$ 40,509	$ 39,416

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Segment Information (Net Sales by Region or Origin and Long-Lived Assets by Region of Domicile) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales:	$ 1,389,966	$ 1,339,783	$ 1,032,578
Long-lived assets	136,787	97,368	91,161
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales:	1,373,907	1,318,795	1,018,406
Long-lived assets	136,553	97,003	90,685
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales:	16,059	20,988	14,172
Long-lived assets	$ 234	$ 365	$ 476

- Definition

+ References

+ Details