10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2020

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File Number 0-22462

GIBRALTAR INDUSTRIES, INC.

(Exact name of Registrant as specified in its charter) 

Delaware				16-1445150
(State or incorporation )				(I.R.S. Employer Identification No.)
3556 Lake Shore Road	P.O. Box 2028	Buffalo	New York	14219-0228
(Address of principal executive offices)				(Zip Code)

Registrant’s telephone number, including area code: (716) 826-6500

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $0.01 par value per share	ROCK	NASDAQ Stock Market

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐ 

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No ☐

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicated by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No  ☒

As of August 3, 2020, the number of common shares outstanding was: 32,423,220.

GIBRALTAR INDUSTRIES, INC.

INDEX

		PAGE  NUMBER
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Statements of Income for the Three and Six Months Ended June 30, 2020 and 2019 (unaudited)	3
	Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, 2020 and 2019 (unaudited)	4
	Consolidated Balance Sheets as of June 30, 2020 (unaudited) and December 31, 2019	5
	Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2020 and 2019 (unaudited)	6
	Consolidated Statement of Shareholders’ Equity for the Six Months Ended June 30, 2020 and 2019 (unaudited)	7
	Notes to Consolidated Financial Statements (unaudited)	9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	34
Item 4.	Controls and Procedures	34
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	34
Item 1A.	Risk Factors	34
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	35
Item 3.	Defaults Upon Senior Securities	35
Item 4.	Mine Safety Disclosures	35
Item 5.	Other Information	35
Item 6.	Exhibits	36
	SIGNATURES	37

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

GIBRALTAR INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share data)

(unaudited)

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Net Sales	$	285,814	$	262,655	$	535,253	$	490,072
Cost of sales	213,556		199,097		406,608		382,614
Gross profit	72,258		63,558		128,645		107,458
Selling, general, and administrative expense	37,667		36,952		78,864		70,286
Income from operations	34,591		26,606		49,781		37,172
Interest expense	214		219		167		2,280
Other (income) expense	(1,787)		(13)		(1,595)		576
Income before taxes	36,164		26,400		51,209		34,316
Provision for income taxes	8,872		6,487		11,858		8,058
Net income	$	27,292	$	19,913	$	39,351	$	26,258
Net earnings per share:
Basic	$	0.84	$	0.62	$	1.21	$	0.81
Diluted	$	0.83	$	0.61	$	1.20	$	0.80
Weighted average shares outstanding:
Basic	32,605		32,321		32,596		32,300
Diluted	32,860		32,642		32,868		32,630

See accompanying notes to consolidated financial statements.

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GIBRALTAR INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

(unaudited)

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Net income	$	27,292	$	19,913	$	39,351	$	26,258
Other comprehensive income (loss):
Foreign currency translation adjustment	2,815		998		(3,083)		1,840
Minimum pension and post retirement benefit plan adjustments	18		12		36		24
Other comprehensive income (loss)	2,833		1,010		(3,047)		1,864
Total comprehensive income	$	30,125	$	20,923	$	36,304	$	28,122

See accompanying notes to consolidated financial statements.

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GIBRALTAR INDUSTRIES, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except per share data)

	June 30, 2020		December 31, 2019
	(unaudited)
Assets
Current assets:
Cash and cash equivalents	$	120,859	$	191,363
Accounts receivable, net of allowance of $6,270 and $6,330	193,609		147,515
Inventories	79,058		78,476
Prepaid expenses and other current assets	22,849		19,748
Total current assets	416,375		437,102
Property, plant, and equipment, net	94,723		95,409
Operating lease assets	33,383		27,662
Goodwill	378,740		329,705
Acquired intangibles	110,481		92,592
Other assets	1,794		1,980
	$	1,035,496	$	984,450
Liabilities and Shareholders’ Equity
Current liabilities:
Accounts payable	$	116,853	$	83,136
Accrued expenses	94,009		98,463
Billings in excess of cost	29,281		47,598
Total current liabilities	240,143		229,197
Deferred income taxes	40,022		40,334
Non-current operating lease liabilities	24,400		19,669
Other non-current liabilities	21,167		21,286
Shareholders’ equity:
Preferred stock, $0.01 par value; authorized 10,000 shares; none outstanding	—		—
Common stock, $0.01 par value; authorized 50,000 shares; 33,413 shares and 33,192 shares issued and outstanding in 2020 and 2019	334		332
Additional paid-in capital	299,829		295,582
Retained earnings	444,728		405,668
Accumulated other comprehensive loss	(8,438)		(5,391)
Cost of 993 and 906 common shares held in treasury in 2020 and 2019	(26,689)		(22,227)
Total shareholders’ equity	709,764		673,964
	$	1,035,496	$	984,450

See accompanying notes to consolidated financial statements.

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GIBRALTAR INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited) 

	Six Months Ended    June 30,
	2020		2019
Cash Flows from Operating Activities
Net income	$	39,351	$	26,258
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	11,054		9,892
Stock compensation expense	4,171		6,091
Gain on sale of business	(1,881)		—
Exit activity costs, non-cash	346		—
(Benefit of) provision for deferred income taxes	(216)		278
Other, net	1,018		2,437
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	(25,842)		(41,156)
Inventories	5,661		13,464
Other current assets and other assets	1,996		(4,983)
Accounts payable	(1,732)		4,012
Accrued expenses and other non-current liabilities	(41,181)		(9,807)
Net cash (used in) provided by operating activities	(7,255)		6,486
Cash Flows from Investing Activities
Acquisitions, net of cash acquired	(54,385)		(264)
Net proceeds from sale of property and equipment	59		60
Purchases of property, plant, and equipment	(5,231)		(6,265)
Net proceeds from sale of business	704		—
Net cash used in investing activities	(58,853)		(6,469)
Cash Flows from Financing Activities
Long-term debt payments	—		(212,000)
Payment of debt issuance costs	—		(1,235)
Purchase of treasury stock at market prices	(4,462)		(3,149)
Net proceeds from issuance of common stock	78		208
Net cash used in financing activities	(4,384)		(216,176)
Effect of exchange rate changes on cash	(12)		1,035
Net decrease in cash and cash equivalents	(70,504)		(215,124)
Cash and cash equivalents at beginning of year	191,363		297,006
Cash and cash equivalents at end of period	$	120,859	$	81,882

See accompanying notes to consolidated financial statements.

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GIBRALTAR INDUSTRIES, INC.

CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY

(in thousands)

(unaudited) 

	Common Stock			Additional Paid-In Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Treasury Stock			Total Shareholders’ Equity
	Shares	Amount								Shares	Amount
Balance at December 31, 2019	33,192	$	332	$	295,582	$	405,668	$	(5,391)	906	$	(22,227)	$	673,964
Net income	—	—		—		12,059		—		—	—		12,059
Foreign currency translation adjustment	—	—		—		—		(5,898)		—	—		(5,898)
Minimum pension and post retirement benefit plan adjustments, net of taxes of $7	—	—		—		—		18		—	—		18
Stock compensation expense	—	—		1,665		—		—		—	—		1,665
Cumulative effect of accounting change (See Note 2)	—	—		—		(291)		—		—	—		(291)
Stock options exercised	3	—		24		—		—		—	—		24
Net settlement of restricted stock units	193	2		(2)		—		—		80	(4,184)		(4,184)
Balance at March 31, 2020	33,388	$	334	$	297,269	$	417,436	$	(11,271)	986	$	(26,411)	$	677,357
Net income	—	—		—		27,292		—		—	—		27,292
Foreign currency translation adjustment	—	—		—		—		2,815		—	—		2,815
Minimum pension and post retirement benefit plan adjustments, net of taxes of $6	—	—		—		—		18		—	—		18
Stock compensation expense	—	—		2,506		—		—		—	—		2,506
Stock options exercised	6	—		54		—		—		—	—		54
Awards of common shares	4	—		—		—		—		—	—		—
Net settlement of restricted stock units	15	—		—		—		—		7	(278)		(278)
Balance at June 30, 2020	33,413	$	334	$	299,829	$	444,728	$	(8,438)	993	$	(26,689)	$	709,764

See accompanying notes to consolidated financial statements.

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GIBRALTAR INDUSTRIES, INC.

CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY

(in thousands)

(unaudited) 

	Common Stock			Additional Paid-In Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Treasury Stock			Total Shareholders’ Equity
	Shares	Amount								Shares	Amount
Balance at December 31, 2018	32,887	$	329	$	282,525	$	338,995	$	(7,234)	796	$	(17,922)	$	596,693
Net income	—	—		—		6,345		—		—	—		6,345
Foreign currency translation adjustment	—	—		—		—		842		—	—		842
Minimum pension and post retirement benefit plan adjustments, net of taxes of $4	—	—		—		—		12		—	—		12
Stock compensation expense	—	—		2,371		—		—		—	—		2,371
Cumulative effect of accounting change	—	—		—		1,582		—		—	—		1,582
Stock options exercised	12	—		139		—		—		—	—		139
Net settlement of restricted stock units	127	1		(1)		—		—		59	(2,151)		(2,151)
Balance at March 31, 2019	33,026	$	330	$	285,034	$	346,922	$	(6,380)	855	$	(20,073)	$	605,833
Net income	—	—		—		19,913		—		—	—		19,913
Foreign currency translation adjustment	—	—		—		—		998		—	—		998
Minimum pension and post retirement benefit plan adjustments, net of taxes of $5	—	—		—		—		12		—	—		12
Stock compensation expense	—	—		3,720		—		—		—	—		3,720
Stock options exercised	5	—		69		—		—		—	—		69
Awards of common shares	8	—		—		—		—		—	—		—
Net settlement of restricted stock units	62	1		(1)		—		—		25	(998)		(998)
Balance at June 30, 2019	33,101	$	331	$	288,822	$	366,835	$	(5,370)	880	$	(21,071)	$	629,547

See accompanying notes to consolidated financial statements.

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GIBRALTAR INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

(1) CONSOLIDATED FINANCIAL STATEMENTS

The accompanying unaudited consolidated financial statements of Gibraltar Industries, Inc. (the "Company") have been prepared by management in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments consisting of normal recurring adjustments considered necessary for the fair presentation of results for the interim period have been included. The Company's operations are seasonal; for this and other reasons, such as the impact of the COVID-19 pandemic, financial results for any interim period are not necessarily indicative of the results expected for any subsequent interim period or for the full year. The accompanying unaudited consolidated financial statements should be read in conjunction with the financial statements and notes thereto included in our annual Form 10-K for the year ended December 31, 2019.

The balance sheet at December 31, 2019 has been derived from the audited financial statements at that date, but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.

9

(2) RECENT ACCOUNTING PRONOUNCEMENTS

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2016-13 Financial Instruments - Credit Losses (Topic 326)	The objective of this standard is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit, including trade receivables, held by an entity at each reporting date. The amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the modified retrospective approach through a cumulative-effect adjustment to retained earnings of $291,000, net of $96,000 of income taxes, on the opening consolidated balance sheet as of January 1, 2020. The Company's financial assets that are in the scope of the standard are contract assets and accounts receivables which are short-term in nature. Additionally, the Company has identified and implemented appropriate changes to the Company's business processes, policies and internal controls to support reporting and disclosures. Date of adoption: Q1 2020
ASU 2018-15 Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	The amendments in this update require an entity to apply the same requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract as the entity would for implementation costs incurred to develop or obtain internal-use software. The accounting for the service element is not affected by the amendments in this update.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the prospective method of adoption, and the adoption did not have a material impact to the Company's financial statements. Date of adoption: Q1 2020

Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	The Company is currently evaluating the requirements of this standard. The standard is not expected to have a material impact on the Company's financial statements. Date of adoption: Q1 2021

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(3) ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS

Accounts receivable consists of the following (in thousands):

	June 30, 2020		December 31, 2019
Trade accounts receivable	$	175,251	$	133,238
Costs in excess of billings	24,628		20,607
Total accounts receivables	199,879		153,845
Less allowance for doubtful accounts and contract assets	(6,270)		(6,330)
Accounts receivable	$	193,609	$	147,515

Refer to Note 4 "Revenue" concerning the Company's costs in excess of billings.

The Company is exposed to credit losses through sales of products and services. 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. 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. The Company considered the current and expected future economic and market conditions surrounding the COVID-19 pandemic and determined that the estimate of credit losses was not significantly impacted as of June 30, 2020.

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

The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable to present the net amount expected to be collected.

Beginning balance as of January 1, 2020	$	6,330
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings	387
Bad debt expense	687
Write-off charged against the allowance and other adjustments	(1,134)
Ending balance as of June 30, 2020	$	6,270

(4) REVENUE

Sales includes revenue from contracts with customers for designing, engineering, manufacturing and installation of solar racking systems and greenhouse structures; extraction systems; roof and foundation ventilation products; centralized mail systems and electronic package solutions; rain dispersion products and roofing accessories; expanded and perforated metal; perimeter security solutions; expansion joints and structural bearings.

Refer to Note 14 "Segment Information" for additional information related to revenue recognized by timing of transfer of control by reportable segment.

As of June 30, 2020, the Company's remaining performance obligations are part of contracts that have an original expected duration of one year or less.

Contract assets consist of costs in excess of billings. Contract liabilities consist of billings in excess of cost and unearned revenue. The following table presents the beginning and ending balances of costs in excess of billings, billings in excess of cost and unearned revenue as of June 30, 2020 and December 31, 2019, respectively, and

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revenue recognized during the six months ended June 30, 2020 and 2019, respectively, that was in billings in excess of cost and unearned revenue at the beginning of the period (in thousands):

	June 30, 2020		December 31, 2019
Costs in excess of billings	$	24,627	$	20,607
Billings in excess of cost	(29,281)		(47,598)
Unearned revenue	(16,503)		(17,311)

	Six Months Ended June 30, 2020		Six Months Ended June 30, 2019
Revenue recognized in the period from:
Amounts included in billings in excess of cost at the beginning of the period	$	42,115	$	11,357
Amounts included in unearned revenue at the beginning of the period	$	12,553	$	6,153

(5) INVENTORIES

Inventories consist of the following (in thousands):

	June 30, 2020		December 31, 2019
Raw material	$	43,234	$	45,700
Work-in-process	6,206		5,988
Finished goods	29,618		26,788
Total inventories	$	79,058	$	78,476

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(6) ACQUISITIONS

2020 Acquisitions

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 described as "Delta Separations"). 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 Renewable Energy and Conservation segment. The purchase consideration for the acquisition of Delta Separations was $47.1 million, which includes a working capital adjustment and certain other adjustments provided for in the asset purchase agreement.

The purchase price for the acquisition of the assets was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $32.9 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 presence in the extraction processing markets.

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

Working capital	$	4,063
Property, plant and equipment	219
Acquired intangible assets	13,000
Other assets	951
Other liabilities	(4,027)
Goodwill	32,906
Fair value of purchase consideration	$	47,112

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	6,000	Indefinite
Technology	3,200		10 years
Customer relationships	3,200		11 years
Non-compete agreements	300		5 years
Backlog	300		0.25 years
Total	$	13,000

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 supporting the plant based organic food market. The results of Thermo have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The preliminary purchase consideration for the acquisition of Thermo was $7.3 million.

The purchase price for the acquisition was preliminarily allocated to the assets acquired and liabilities assumed based upon their respective estimated fair values and the remaining consideration was recorded to goodwill. Goodwill of approximately $16.1 million was recorded, 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 commercial greenhouse markets. The preliminary allocation of the purchase price is subject to adjustments during the measurement period

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as third-party valuations are finalized. The final purchase price allocation will be completed no later than the first quarter of 2021.

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	$	135
Working capital	(19,718)
Property, plant and equipment	1,069
Acquired intangible assets	9,750
Other current assets	35
Other assets	1,335
Other liabilities	(1,335)
Goodwill	16,062
Fair value of purchase consideration	$	7,333

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	660	3 years
Technology	2,639		15 years
Customer relationships	6,451		10 years
Total	$	9,750

2019 Acquisition

On August 30, 2019, the Company acquired all of the outstanding membership interests of Apeks LLC ("Apeks"), a designer and manufacturer of botanical oil extraction systems and equipment. The results of Apeks have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The aggregate purchase consideration for the acquisition of Apeks was $12.6 million, which includes a working capital adjustment and certain other adjustments provided for in the membership interest purchase agreement.

The purchase price for the acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $6.4 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 presence in the extraction processing markets.

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

Cash	$	4,154
Working capital	(1,515)
Property, plant and equipment	1,059
Acquired intangible assets	3,000
Other assets	508
Other liabilities	(1,081)
Goodwill	6,436
Fair value of purchase consideration	$	12,561

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	1,400	Indefinite
Technology	900		7 years
Customer relationships	700		6 years
Total	$	3,000

In determining the allocation of the purchase price to the assets acquired and the liabilities assumed, the Company uses all available information to make fair value determinations using Level 3 unobservable inputs in which little or no market data exists, and therefore, engages independent valuation specialists to assist in the fair value determination of the acquired long-lived assets.

The acquisitions of Delta Separations, Thermo and Apeks were funded from available cash on hand.

The Company 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 statement of operations. The Company also 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 acquisition-related costs consisted of the following for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Selling, general and administrative costs	$	588	$	4	$	1,848	$	4
Cost of sales	634		—		634		—
Total acquisition-related costs	$	1,222	$	4	$	2,482	$	4

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(7) GOODWILL AND RELATED INTANGIBLE ASSETS

Goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2020 are as follows (in thousands):

	Renewable Energy & Conservation		Residential Products		Industrial and Infrastructure Products		Total
Balance at December 31, 2019	$	77,602	$	198,075	$	54,028	$	329,705
Acquired goodwill	49,001		—		—		49,001
Adjustments to prior year acquisitions	579		—		—		579
Foreign currency translation	(281)		—		(264)		(545)
Balance at June 30, 2020	$	126,901	$	198,075	$	53,764	$	378,740

The Company conducts its annual goodwill impairment test as of October 31 each year. All of the Company’s ten reporting units had fair values exceeding their carrying values as of October 31, 2019. In addition to the annual impairment test, the Company is required to regularly assess whether a triggering event has occurred which would require interim impairment testing. The Company considered the current and future macroeconomic and market conditions, along with its current market capitalization, projected cash flows and internal and external forecasts, and projections relating to the impact of the COVID-19 pandemic on each of its reporting units. The Company determined that a triggering event has not occurred which would require an interim impairment test to be performed.

Acquired Intangible Assets

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

	June 30, 2020				December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	51,295	$	—	$	45,770	$	—
Finite-lived intangible assets:
Trademarks	6,753		4,328		6,139		4,105
Unpatented technology	35,383		17,031		29,544		15,807
Customer relationships	80,976		42,876		71,195		40,294
Non-compete agreements	1,949		1,640		1,649		1,499
Backlog	300		300		—		—
	125,361		66,175		108,527		61,705
Total acquired intangible assets	$	176,656	$	66,175	$	154,297	$	61,705

The following table summarizes the acquired intangible asset amortization expense for the three and six months ended June 30 (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Amortization expense	$	2,412	$	1,797	$	4,490	$	3,594

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Amortization expense related to acquired intangible assets for the remainder of fiscal 2020 and the next five years thereafter is estimated as follows (in thousands):

	2020		2021		2022		2023		2024		2025
Amortization expense	$	3,860	$	7,633	$	7,154	$	6,617	$	6,363	$	6,203

(8) LONG-TERM DEBT

The Company did not have any long-term debt outstanding at June 30, 2020 and December 31, 2019.

Senior Credit Agreement

On January 24, 2019, the Company entered into a 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 provides for a revolving credit facility and letters of credit in an aggregate amount equal to $400 million. The Company can request additional financing from the lenders 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. The Senior Credit Agreement contains three financial covenants. As of June 30, 2020, the Company is in compliance with all three covenants.

Borrowings under the Senior Credit Agreement are secured by the trade receivables, inventory, personal property, equipment, and general intangibles of the Company’s significant domestic subsidiaries.

Standby letters of credit of $5.9 million have been issued under the Senior Credit Agreement on behalf of the Company as of June 30, 2020. These letters of credit reduce the amount otherwise available under the revolving credit facility. As of June 30, 2020, the Company had $394.1 million of availability under the revolving credit facility. No borrowings were outstanding under the Company's revolving credit facility at June 30, 2020 and December 31, 2019.

(9) ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

The following tables summarize the cumulative balance of each component of accumulated other comprehensive loss, net of tax, for the three and six months ended June 30, (in thousands):

	Foreign Currency Translation Adjustment		Minimum  pension and post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated  Other Comprehensive (Loss) Income
Balance at December 31, 2019	$	(4,173)	$	(1,939)	$	(6,112)	$	(721)	$	(5,391)
Minimum pension and post retirement health care plan adjustments	—		25		25		7		18
Foreign currency translation adjustment	(5,898)		—		(5,898)		—		(5,898)
Balance at March 31, 2020	$	(10,071)	$	(1,914)	$	(11,985)	$	(714)	$	(11,271)
Minimum pension and post retirement health care plan adjustments	—		24		24		6		18
Foreign currency translation adjustment	2,815		—		2,815		—		2,815
Balance at June 30, 2020	$	(7,256)	$	(1,890)	$	(9,146)	$	(708)	$	(8,438)

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	Foreign Currency Translation Adjustment		Minimum  pension and post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated  Other Comprehensive (Loss) Income
Balance at December 31, 2018	$	(5,939)	$	(2,040)	$	(7,979)	$	(745)	$	(7,234)
Minimum pension and post retirement health care plan adjustments	—		16		16		4		12
Foreign currency translation adjustment	842		—		842		—		842
Balance at March 31, 2019	$	(5,097)	$	(2,024)	$	(7,121)	$	(741)	$	(6,380)
Minimum pension and post retirement health care plan adjustments	—		17		17		5		12
Foreign currency translation adjustment	998		—		998		—		998
Balance at June 30, 2019	$	(4,099)	$	(2,007)	$	(6,106)	$	(736)	$	(5,370)

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

(10) EQUITY-BASED COMPENSATION

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"). 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.

In 2016, the shareholders of the Company approved the adoption of the Gibraltar Industries, Inc. 2016 Stock Plan for Non-Employee Directors ("Non-Employee Directors Plan") which allows the Company to grant awards of shares of the Company's common stock to 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.

Equity Based Awards - Settled in Stock

The following table sets forth the number of equity-based awards granted during the six months ended June 30, which will convert to shares upon vesting, along with the weighted average grant date fair values:

	2020			2019
Awards	Number of Awards (1)	Weighted Average Grant Date Fair Value		Number of Awards (2)	Weighted Average Grant Date Fair Value
Performance stock units	127,397	$	53.16	145,420	$	40.55
Restricted stock units	43,842	$	52.12	117,821	$	39.37
Deferred stock units	12,402	$	45.98	7,509	$	37.95
Common shares	4,134	$	45.98	7,509	$	37.95

(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 performance stock units 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 revenue, gross profit and operating profit thresholds over a two or three-year performance period. The Company's PSUs with a market condition are based on the ranking of the

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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.

(2) Performance stock units granted in 2019 have converted to 168,688 shares to be issued to recipients in the first quarter of 2022, representing 116% of the targeted 2019 award, based on the Company’s actual ROIC compared to ROIC target for the performance period ended December 31, 2019.

Equity Based Awards - Settled in Cash

The Company's equity-based liability includes awards under a management stock purchase plan. As of June 30, 2020, the Company's total share-based liabilities recorded on the consolidated balance sheet were $29.2 million, of which $12.7 million was included in non-current liabilities. The share-based liabilities as of December 31, 2019 were $28.0 million, of which $13.2 million was included in non-current liabilities.

The Management Stock Purchase Plan ("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 compensation.

The deferrals and company-matching are credited to an account that represents a share-based liability. Eligible employees may direct their deferrals to invest in phantom restricted stock units that are measured on the 200-day average of the Company’s stock price, hypothetical investment alternatives available under Company’s 401(k) plan that are measured at market value, or a combination of both. Non-employee directors may only direct their deferrals into phantom restricted stock units that are measured on the 200-day average of the Company’s stock price. The company-matching is made in phantom restricted stock units and measured on the 200-day average of the Company’s 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.

The following table provides the number of restricted stock units credited to active participant accounts and the payments made with respect to restricted stock units issued under the MSPP during the six months ended June 30,:

	2020		2019
Restricted stock units credited	52,965		55,513
Share-based liabilities paid (in thousands)	$	4,433	$	5,742

(11) 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, the sale and exiting of less profitable businesses or product lines, and the reduction in our manufacturing footprint.

Exit activity costs were incurred during the six months ended June 30, 2020 and 2019 which related to moving and closing costs, contract terminations, and severance incurred as a result of process simplification initiatives. During the six months ended June 30, 2020, the Company closed one facility in conjunction with these initiatives. No facilities were closed as a result of these initiatives during the first half of 2019.

The following tables set forth the asset impairment charges and exit activity costs incurred by segment during the three and six months ended June 30, related to the restructuring activities described above (in thousands):

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	Three months ended June 30,
	2020						2019
	Inventory write-downs &/or asset impairment charges		Exit activity costs		Total		Inventory write-downs &/or asset impairment charges		Exit activity (recoveries) costs, net		Total
Renewable Energy and Conservation	$	72	$	316	$	388	$	—	$	(95)	$	(95)
Residential Products	—		263		263		—		219		219
Industrial and Infrastructure Products	274		40		314		—		1,346		1,346
Corporate	—		45		45		—		666		666
Total exit activity costs & asset impairments	$	346	$	664	$	1,010	$	—	$	2,136	$	2,136

	Six months ended June 30,
	2020						2019
	Inventory write-downs &/or asset impairment charges		Exit activity costs		Total		Inventory write-downs &/or asset impairment charges		Exit activity (recoveries) costs, net		Total
Renewable Energy and Conservation	$	72	$	334	$	406	$	—	$	(1)	$	(1)
Residential Products	—		484		484		—		370		370
Industrial and Infrastructure Products	274		38		312		—		1,313		1,313
Corporate	—		99		99		—		673		673
Total exit activity costs & asset impairments	$	346	$	955	$	1,301	$	—	$	2,355	$	2,355

The following table provides a summary of where the asset impairments and exit activity costs were recorded in the consolidated statements of income for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Cost of sales	$	786	$	319	$	873	$	285
Selling, general, and administrative expense	224		1,817		428		2,070
Total asset impairment and exit activity charges	$	1,010	$	2,136	$	1,301	$	2,355

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

	2020		2019
Balance at January 1	$	5,449	$	1,923
Exit activity costs recognized	955		2,355
Cash payments	(5,575)		(1,329)
Balance at June 30	$	829	$	2,949

On June 30, 2020, the Company sold its self-guided apartment tour application business to a third party from its Residential Products 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 (income) expense in the consolidated statements of income. This divestiture does not meet the criteria to be reported as a discontinued operation nor will it have a major effect on the Company's operations.

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(12) INCOME TAXES

The following table summarizes the provision for income taxes for continuing operations (in thousands) for the three and six months ended June 30, and the applicable effective tax rates:

	Three Months Ended    June 30,						Six Months Ended    June 30,
	2020			2019			2020			2019
Provision for income taxes	$	8,872		$	6,487		$	11,858		$	8,058
Effective tax rate	24.5		%	24.6		%	23.2		%	23.5		%

The effective tax rate for the three and six months ended June 30, 2020 and 2019, respectively, was more than the U.S. federal statutory rate of 21% due to state taxes and nondeductible permanent differences partially offset by favorable discrete items.

On March 27, 2020, the President of the United States signed into law the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"). The CARES Act, among other things, includes certain income tax provisions for individuals and corporations; however, these benefits do not materially impact the Company’s income tax provision.

On July 20, 2020, the Department of Treasury and the Internal Revenue Service issued final regulations addressing the treatment of income earned by certain foreign corporations related to the treatment of income that is subject to high rate of foreign tax under the global intangible low-taxed income ("GILTI") and subpart F income regimes. These provisions would be effective for the Company starting in 2021 but includes retroactive provisions that may allow for retroactive application. The Company is currently evaluating the impact of this guidance on its consolidated financial statements.

(13) EARNINGS PER SHARE

Basic earnings and diluted weighted-average shares outstanding are as follows for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Numerator:
Net income available to common shareholders	$	27,292	$	19,913	$	39,351	$	26,258
Denominator for basic earnings per share:
Weighted average shares outstanding	32,605		32,321		32,596		32,300
Denominator for diluted earnings per share:
Weighted average shares outstanding	32,605		32,321		32,596		32,300
Common stock options and stock units	255		321		272		330
Weighted average shares and conversions	32,860		32,642		32,868		32,630

The weighted average number of diluted shares does not include potential anti-dilutive common shares issuable pursuant to equity based incentive compensation awards, aggregating to 77,000 and 366,000 for the three months ended June 30, 2020 and 2019, respectively, and 47,000 and 312,000 for the six months ended June 30, 2020 and 2019, respectively.

(14) SEGMENT INFORMATION

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

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(i)Renewable Energy and Conservation, which primarily includes designing, engineering, manufacturing and installation of solar racking, electrical balance of systems, extraction systems and greenhouse structures;

(ii)Residential Products, which primarily includes roof and foundation ventilation products, rain dispersion products and roofing accessories, centralized mail systems and electronic package solutions; and

(iii)Industrial and Infrastructure Products, which primarily includes expanded and perforated metal, perimeter security systems, expansion joints, and structural bearings.

When determining the reportable segments, the Company aggregated operating segments based on their similar economic and operating characteristics.

The following table illustrates certain measurements used by management to assess performance of the segments described above for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Net sales:
Renewable Energy and Conservation	$	98,259	$	76,004	$	194,756	$	144,841
Residential Products	139,472		130,433		242,891		234,142
Industrial and Infrastructure Products	48,263		56,547		98,064		111,735
Less: Intersegment sales	(180)		(329)		(458)		(646)
Net Industrial and Infrastructure Products	48,083		56,218		97,606		111,089
Total consolidated net sales	$	285,814	$	262,655	$	535,253	$	490,072
Income from operations:
Renewable Energy and Conservation	$	9,188	$	9,649	$	14,887	$	11,281
Residential Products	27,964		20,778		41,689		32,868
Industrial and Infrastructure Products	6,644		4,069		10,633		8,198
Unallocated Corporate Expenses	(9,205)		(7,890)		(17,428)		(15,175)
Total consolidated income from operations	$	34,591	$	26,606	$	49,781	$	37,172

The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	12,416	$	138,288	$	37,179	$	187,883
Over Time	85,843		1,184		10,904		97,931
Total net sales	$	98,259	$	139,472	$	48,083	$	285,814

	Three Months Ended June 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	8,469	$	129,566	$	46,315	$	184,350
Over Time	67,535		867		9,903		78,305
Total net sales	$	76,004	$	130,433	$	56,218	$	262,655

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	Six Months Ended June 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	27,004	$	240,619	$	76,674	$	344,297
Over Time	167,752		2,272		20,932		190,956
Total net sales	$	194,756	$	242,891	$	97,606	$	535,253

	Six Months Ended June 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	15,759	$	232,458	$	91,602	$	339,819
Over Time	129,082		1,684		19,487		150,253
Total net sales	$	144,841	$	234,142	$	111,089	$	490,072

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Certain information set forth herein includes statements that express our opinions, expectations, beliefs, plans, objectives, assumptions or projections regarding future events or future results and, therefore are, or may be deemed to be, “forward-looking statements.” These forward-looking statements can generally be identified by the use of forward-looking terminology, including the terms “believes,” “anticipates,” "aspires," “expects,” “estimates,” “seeks,” “projects,” “intends,” “plans,” “may,” “will” or “should” or, in each case, their negative or other variations or comparable terminology. These forward-looking statements include all matters that are not historical facts. They include statements regarding our intentions, beliefs or current expectations concerning, among other things, our results of operations, financial condition, liquidity, prospects, growth, competition, strategies and the industries in which we operate. By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. We believe that these risks and uncertainties include, but are not limited to, those described in the “Risk Factors” disclosed in our Annual Report on Form 10-K along with Item 1A of this Form 10-Q. Although we base these forward-looking statements on assumptions that we believe are reasonable when made, we caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition, liquidity and the development of the industries in which we operate may differ materially from those made in or suggested by the forward-looking statements contained herein. In addition, even if our results of operations, financial condition, liquidity, and the development of the industries in which we operate are consistent with the forward-looking statements contained in this quarterly report, those results or developments may not be indicative of results or developments in subsequent periods. Given these risks and uncertainties, you are cautioned not to place undue reliance on these forward-looking statements. Any forward-looking statements that we make herein speak only as of the date of those statements, and we undertake no obligation to update those statements or to publicly announce the results of any revisions to any of those statements to reflect future events or developments. Comparisons of results for current and any prior periods are not intended to express any future trends or indications of future performance, unless expressed as such, and should only be viewed as historical data.

We use certain operating performance measures, specifically consolidated gross margin, operating margin by segment and consolidated operating margin, to manage our businesses, set operational goals, and establish performance targets for incentive compensation for our employees. We define consolidated gross margin as a percentage of total consolidated gross profit to total consolidated net sales. We define operating margin by segment as a percentage of total income from operations by segment to total net sales by segment and consolidated operating margin as a percentage of total consolidated income from operations to total consolidated net sales. We believe consolidated gross margin and operating margin may be useful to investors in evaluating the profitability of our segments and Company on a consolidated basis.

Overview

Gibraltar Industries, Inc. (the "Company") is a leading manufacturer and provider of products and services for the renewable energy, conservation, residential, industrial and infrastructure markets.

The Company operates and reports its results in the following three reporting segments:

•Renewable Energy and Conservation;

•Residential Products; and

•Industrial and Infrastructure Products.

The Company serves customers primarily in North America including renewable energy (solar) developers, institutional and commercial growers of food and plants, home improvement retailers, wholesalers, distributors, and contractors. As of June 30, 2020, we operated 44 facilities in 19 states, Canada, China and Japan which includes 32 manufacturing facilities and five distribution centers. Our operational infrastructure provides the necessary scale to support local, regional, and national customers in each of our markets.

COVID-19 Update

While the Company continues to encounter challenges and uncertainty associated with COVID-19, the pandemic did not have a material adverse effect on our reported results for the three and six months ended June 30, 2020.

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While most of our operations have been considered essential businesses and have remained open during the pandemic, the decision to keep our team intact despite some pandemic related softness in demand in certain businesses enabled us to deliver revenue and earnings growth during this period. Our top priorities continue to be focused on our organization, keeping the team and their families as safe as possible, our supply chain operating well, and providing a high level of responsiveness to customer needs. We will continue to actively monitor the impact of the COVID-19 outbreak on operations for the remainder of 2020 and beyond, and make adjustments to our operating protocols as necessary. The extent to which our operations will be impacted by the outbreak will largely depend on future developments, which are highly uncertain and cannot be accurately predicted, including new information which may emerge concerning the severity, or reemergence, of the outbreak and actions by government authorities to contain the outbreak or respond to its impact, among other things. Refer to the Company's Outlook section in this management discussion and analysis for consideration relative to future periods.

Our Business

The end markets that our businesses serve are subject to changes in economic and competitive conditions that are influenced by various factors that could cause actual results to differ materially from current expectations. Such factors include, but are not limited to:

•the impacts of the COVID-19 pandemic on the global economy, our customers, suppliers, employees, operations, business, liquidity and cash flows;

•general economic conditions and conditions in the particular markets in which we operate;

•changes in customer demand for residential construction, repair and remodeling, non-residential construction and infrastructure projects, botanical extraction equipment, and renewable energy sources;

•capital spending, competitive factors and pricing pressures;

•our ability to develop and launch new products in a cost-effective manner;

•our ability to realize synergies from newly acquired businesses, and our ability to derive expected benefits from restructuring, productivity initiatives, liquidity enhancing actions, and other cost reduction actions;

•changes in interest rates, exchange rates, commodity costs;

•changes in governmental policies and funding, tax policies and incentives, tariffs, trade policies;

•the need for protection of high value assets; and

•climate change.

We believe the key elements of our strategy discussed below will allow us to respond timely to the challenges presented by the COVID-19 pandemic and changes in the various factors that could cause our actual results to differ materially from current expectations.

Business Strategy

Gibraltar’s mission is to create compounding and sustainable value with strong leadership positions in higher growth and profitable end markets. The Company's operational foundation employs a Three-Pillar strategy focusing on three core tenets: Business Systems, Portfolio Management, and Organizational Development.

1.Business Systems - operational excellence and product innovation is supported by an execution review of the Company's monthly business performance, implementation of key investments, information technology operating and digital systems performance, and new product and services innovation.

2.Portfolio Management - acquisitions and portfolio management is focused on optimizing the Company’s business portfolio and ensuring our human and financial capital are invested to provide sustainable, profitable growth while expanding our relevance to customers and shaping our markets. The recent acquisitions of Apeks, LLC ("Apeks") in August 2019, Thermo Energy Systems Inc. ("Thermo") in January 2020, and Delta Separations LLC and Teaching Tech LLC (collectively “Delta Separations”) in February 2020 were the direct result of executing our Portfolio Management strategy.

3.Organizational Development is the third pillar of our strategy. In order to execute Business Systems and Portfolio Management, the Company must have a strong organization to execute, and the organization must continuously develop and improve. The Company aspires to make our workplace the "Best Place to Work", by focusing on creating the best development and learning environment for our people, proactively operating businesses that mitigate environmental and climate related impacts, and engaging and supporting

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the communities in which we are located. We believe doing so helps us attract and retain the best people, enhancing our ability to execute our business plans.

In addition to our Three-Pillar strategy, the Company:

•implemented new management tools to complement our core 80/20 toolkit and drive improvements in our operating margins;

•increased the percentage of our sales that are direct to end customers, allowing us to have a more meaningful connection with our end customers, providing the opportunity to better understand the challenges our customers face, and developing solutions to these challenges; and

•continued to shift the focus of our portfolio to take advantage of rising tides in the renewable energy and conservation markets.

We believe the key elements of our strategy have, and will continue to, enable us to respond timely to changes in the end markets we serve, including evolving changes due to the outbreak of COVID-19. We have and expect to continue to examine the need for restructuring of our operations, including consolidation of facilities, reducing overhead costs, curtailing investments in inventory, and managing our business to generate incremental cash. We believe our enhanced strategy enabled us to better react to volatility in commodity costs and fluctuations in customer demand, along with helping to improve margins. We have used the improved cash flows generated by these initiatives to pay down debt, improve our liquidity position, and invest in growth initiatives. Overall, we continue to strive to achieve stronger financial results, make more efficient use of capital, and deliver higher shareholder returns.

Recent Developments

On February 13, 2020, the Company acquired the assets of California-based Delta Separations, a privately held ethanol-based extraction systems manufacturer and training and laboratory design and operations consultative partner for $50 million in an all cash transaction. Delta Separations had revenue of approximately $46 million in 2019.

On January 15, 2020, the Company acquired the assets of Canadian-based Thermo, a privately held provider of commercial greenhouse solutions in North America supporting the biologically grown organic food market, in an all cash transaction for approximately $7 million. The Company also expects to invest approximately $42 million into Thermo to provide an appropriate level of working capital. Thermo is expected to contribute annual revenue at a run rate of approximately $75 million.

On August 30, 2019, the Company acquired all of the outstanding membership interests of Apeks, a designer and manufacturer of botanical oil extraction systems utilizing subcritical and supercritical carbon dioxide. The acquisition was financed through cash on hand of $12 million. Apeks had trailing twelve months of revenues as of June 30, 2019 of $17.7 million. The results of operations of Apeks have been included in the Renewable Energy and Conservation segment of the Company's consolidated financial statements from the date of acquisition.

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Results of Operations

Three Months Ended June 30, 2020 Compared to the Three Months Ended June 30, 2019

The following table sets forth selected results of operations data (in thousands) and its percentage of net sales for the three months ended June 30:

	2020				2019
Net sales	$	285,814	100.0	%	$	262,655	100.0	%
Cost of sales	213,556		74.7	%	199,097		75.8	%
Gross profit	72,258		25.3	%	63,558		24.2	%
Selling, general, and administrative expense	37,667		13.2	%	36,952		14.1	%
Income from operations	34,591		12.1	%	26,606		10.1	%
Interest expense	214		0.1	%	219		0.0	%
Other income	(1,787)		(0.6)	%	(13)		0.0	%
Income before taxes	36,164		12.6	%	26,400		10.1	%
Provision for income taxes	8,872		3.1	%	6,487		2.5	%
Net income	$	27,292	9.5	%	$	19,913	7.6	%

The following table sets forth the Company’s net sales by reportable segment for the three months ended June 30, (in thousands):

							Change due to
	2020		2019		Total Change		Acquisitions		Operations
Net sales:
Renewable Energy and Conservation	$	98,259	$	76,004	$	22,255	$	19,068	$	3,187
Residential Products	139,472		130,433		9,039		—		9,039
Industrial and Infrastructure Products	48,263		56,547		(8,284)		—		(8,284)
Less: Intersegment sales	(180)		(329)		149		—		149
Net Industrial and Infrastructure Products	48,083		56,218		(8,135)		—		(8,135)
Consolidated	$	285,814	$	262,655	$	23,159	$	19,068	$	4,091

Consolidated net sales increased by $23.2 million, or 8.8%, to $285.8 million for the three months ended June 30, 2020 compared to the three months ended June 30, 2019. The 8.8% increase in revenue was largely the result of $19.1 million of sales generated from our first quarter 2020 acquisitions of Thermo and Delta Separations and the prior year acquisition of Apeks. The $4.1 million of organic growth in the quarter was primarily due to increased volume for both our Residential Products segment and our Renewable Energy and Conservation segment, which more than offset the volume decline in our Industrial and Infrastructure Products segment.

Net sales in our Renewable Energy and Conservation segment increased 29.3%, or $22.3 million, to $98.3 million for the three months ended June 30, 2020 compared to $76.0 million for the three months ended June 30, 2019. Sales generated from the current year acquisitions of Thermo and Delta Separations, along with the prior year acquisition of Apeks, contributed $19.1 million to the increase in the current year quarter. Organic growth of $3.2 million or 4.2% was largely driven by healthy market dynamics and participation gains in our renewable energy related businesses. These factors, along with the impact of recent acquisitions contributed to the 15% improvement in backlog year over year for this segment.

Net sales in our Residential Products segment increased 6.9%, or $9.0 million, to $139.5 million for the three months ended June 30, 2020 compared to $130.4 million for the three months ended June 30, 2019. The increase from the prior year quarter was largely due to strong repair and remodel activity by homeowners during the COVID-19 pandemic along with participation gains.

27

Net sales in our Industrial and Infrastructure Products segment decreased 14.4%, or $8.1 million, to $48.1 million for the three months ended June 30, 2020 compared to $56.2 million for the three months ended June 30, 2019. Lower demand for its core industrial products during the COVID-19 pandemic resulted in a decrease in revenue in the Industrial businesses. Revenue in the Infrastructure business was comparable to the prior year quarter and its backlog continued to grow during the quarter.

Our consolidated gross margin increased to 25.3% for the three months ended June 30, 2020 compared to 24.2% for the three months ended June 30, 2019. This increase was the result of favorable alignment of material costs to customer selling prices, improved operating execution in all our core businesses compared to the prior year quarter, which included incremental costs for design refinement and field improvements for our solar tracking solution and benefits from our 80/20 simplification initiatives. Partially offsetting the above improvements were lower gross margins generated from our recent acquisitions.

Selling, general, and administrative ("SG&A") expenses increased by $0.7 million, or 1.9%, to $37.7 million for the three months ended June 30, 2020 from $37.0 million for the three months ended June 30, 2019. The $0.7 million increase was largely the result of $3.5 million in incremental SG&A expenses recorded quarter over quarter for our recent acquisitions, partially offset by a decrease in exit activity costs as compared to the prior year quarter along with a slowdown in spending due to COVID-19 pandemic-related restrictions on travel. Additionally, we have invested in the development of our organization and the safety of our team by reallocating SG&A spending. SG&A expenses as a percentage of net sales decreased to 13.2% for the three months ended June 30, 2020 compared to 14.1% for the three months ended June 30, 2019.

The following table sets forth the Company’s income from operations and income from operations as a percentage of net sales by reportable segment for the three months ended June 30, (in thousands):

	2020				2019				Total Change
Income from operations:
Renewable Energy and Conservation	$	9,188	9.4	%	$	9,649	12.7	%	$	(461)
Residential Products	27,964		20.0	%	20,778		15.9	%	7,186
Industrial and Infrastructure Products	6,644		13.8	%	4,069		7.2	%	2,575
Unallocated Corporate Expenses	(9,205)		(3.2)	%	(7,890)		(3.0)	%	(1,315)
Consolidated income from operations	$	34,591	12.1	%	$	26,606	10.1	%	$	7,985

Our Renewable Energy and Conservation segment generated an operating margin of 9.4% in the current year quarter compared to 12.7% in the prior year quarter. The decrease in operating margin was the result of the expected lower margins generated by our recent acquisitions as we continue to integrate them operationally, along with COVID-19 pandemic-related weakness in cannabis growing solutions. Partially offsetting this decrease was favorable product and services mix and strong execution in our renewable energy businesses, as well as, the absence of incremental costs incurred during the prior year quarter for design refinement and field improvements for our solar tracking solution.

The Residential Products segment generated an operating margin of 20.0% during the three months ended June 30, 2020 compared to 15.9% during the three months ended June 30, 2019. The increase in operating margin was a result of an improved alignment of material costs to customer selling prices along with volume leverage and continued benefits from 80/20 simplification initiatives.

Our Industrial and Infrastructure Products segment generated an operating margin of 13.8% during the three months ended June 30, 2020 compared to 7.2% during the three months ended June 30, 2019. The increase resulted from continued improvement in execution in our industrial business, a more favorable alignment of material costs to customer selling prices, product mix and ongoing benefits from the Company's 80/20 initiatives.

Unallocated corporate expenses increased $1.3 million from $7.9 million during the three months ended June 30, 2019 to $9.2 million during the three months ended June 30, 2020. The increase is the result of investments in the development of our organization and safety of our team.

28

Interest expense was $0.2 million for both the three months ended June 30, 2020 and 2019, respectively. No amounts were outstanding under our revolving credit facility during the three months ended June 30, 2020 and 2019.

The Company recorded other income of $1.8 million for the three months ended June 30, 2020. Other income for the three months ended June 30, 2019 was negligible. The increase in other income from the prior year quarter was primarily the result of the $1.9 million pre-tax gain on the sale of the Company's self-guided apartment tour application business within the Residential Products segment.

We recognized a provision for income taxes of $8.9 million and $6.5 million, with effective tax rates of 24.5% and 24.6% for the three months ended June 30, 2020, and 2019, respectively. The effective tax rates for the three months ended June 30, 2020 and 2019, respectively, were greater than the U.S. federal statutory rate of 21% due to state taxes and nondeductible permanent differences partially offset by favorable discrete items.

Six Months Ended June 30, 2020 Compared to the Six Months Ended June 30, 2019

The following table sets forth selected results of operations data (in thousands) and its percentage of net sales for the six months ended June 30:

	2020				2019
Net sales	$	535,253	100.0	%	$	490,072	100.0	%
Cost of sales	406,608		76.0	%	382,614		78.1	%
Gross profit	128,645		24.0	%	107,458		21.9	%
Selling, general, and administrative expense	78,864		14.7	%	70,286		14.3	%
Income from operations	49,781		9.3	%	37,172		7.6	%
Interest expense	167		0.0	%	2,280		0.5	%
Other (income) expense	(1,595)		(0.3)	%	576		0.1	%
Income before taxes	51,209		9.6	%	34,316		7.0	%
Provision for income taxes	11,858		2.2	%	8,058		1.6	%
Net income	$	39,351	7.4	%	$	26,258	5.4	%

The following table sets forth the Company’s net sales by reportable segment for the six months ended June 30, (in thousands):

							Change due to
	2020		2019		Total Change		Acquisitions		Operations
Net sales:
Renewable Energy and Conservation	$	194,756	$	144,841	$	49,915	$	34,797	$	15,118
Residential Products	242,891		234,142		8,749		—		8,749
Industrial and Infrastructure Products	98,064		111,735		(13,671)		—		(13,671)
Less: Intersegment sales	(458)		(646)		188		—		188
Net Industrial and Infrastructure Products	97,606		111,089		(13,483)		—		(13,483)
Consolidated	$	535,253	$	490,072	$	45,181	$	34,797	$	10,384

Consolidated net sales increased by $45.2 million, or 9.2%, to $535.3 million for the six months ended June 30, 2020 compared to the six months ended June 30, 2019. The 9.2% increase in revenue was driven by $34.8 million of sales generated from our current year acquisitions of Thermo and Delta Separations and the prior year acquisition of Apeks. The $10.4 million of organic growth in the current year was primarily due to increased volume for both our Renewable Energy and Conservation segment and Residential Products segment, which more than offset the volume decline in our Industrial and Infrastructure Products segment.

29

Net sales in our Renewable Energy and Conservation segment increased 34.5%, or $49.9 million, to $194.8 million for the six months ended June 30, 2020 compared to $144.8 million for the six months ended June 30, 2019. Sales generated by the current year acquisitions of Thermo and Delta Separations, along with the prior year acquisition of Apeks, contributed $34.8 million, or 24.0%, to the increase in the current year. Organic growth of $15.1 million or 10.5% was largely driven by healthy market dynamics and participation gains in our renewable energy related businesses. These factors, along with the impact of recent acquisitions contributed to the 15% improvement in backlog year over year for this segment.

Net sales in our Residential Products segment increased 3.7%, or $8.7 million, to $242.9 million for the six months ended June 30, 2020 compared to $234.1 million for the six months ended June 30, 2019. The increase from the prior year was largely due to strong repair and remodel activity by homeowners during the COVID-19 pandemic along with participation gains. .

Net sales in our Industrial and Infrastructure Products segment decreased 12.2%, or $13.5 million, to $97.6 million for the six months ended June 30, 2020 compared to $111.1 million for the six months ended June 30, 2019. Lower demand and lower steel prices impacting its core industrial products resulted in a decrease in revenue in the Industrial businesses, slightly offset by higher revenues in the Infrastructure business. Backlog for the Infrastructure business grew during the six month period ended June 30, 2020.

Our consolidated gross margin increased to 24.0% for the six months ended June 30, 2020 compared to 21.9% for the six months ended June 30, 2019. This increase was the result of favorable alignment of material costs to customer selling prices, improved operating execution in all of our core businesses compared to the prior year period, which included incremental costs for design refinement and field improvements for our solar tracking solution and benefits from our 80/20 simplification initiatives. Partially offsetting the above improvements were lower gross margins generated from our recent acquisitions.

SG&A expenses increased by $8.6 million, or 12.2%, to $78.9 million for the six months ended June 30, 2020 from $70.3 million for the six months ended June 30, 2019. The $8.6 million increase was largely the result of $7.3 million of incremental SG&A expenses recorded year over year for our recent acquisitions and investments in the development of our organization and safety of our team by reallocating SG&A spending, along with costs incurred to effect the acquisitions closed during the year. SG&A expenses as a percentage of net sales increased to 14.7% for the six months ended June 30, 2020 compared to 14.3% for the six months ended June 30, 2019.

The following table sets forth the Company’s income from operations and income from operations as a percentage of net sales by reportable segment for the six months ended June 30, (in thousands):

	2020				2019				Total Change
Income from operations:
Renewable Energy and Conservation	$	14,887	7.6	%	$	11,281	7.8	%	$	3,606
Residential Products	41,689		17.2	%	32,868		14.0	%	8,821
Industrial and Infrastructure Products	10,633		10.9	%	8,198		7.4	%	2,435
Unallocated Corporate Expenses	(17,428)		(3.3)	%	(15,175)		(3.1)	%	(2,253)
Consolidated income from operations	$	49,781	9.3	%	$	37,172	7.6	%	$	12,609

Our Renewable Energy and Conservation segment generated an operating margin of 7.6% during the six months ended June 30, 2020 compared to 7.8% during the six months ended June 30, 2019. The slight decrease in operating margin was the net result of the expected lower margins generated from our recent acquisitions as we continue to integrate them operationally, largely offset by product and services mix and strong execution in our renewable energy businesses, as well as, the absence of incremental costs incurred during the prior year for design refinement and field improvements for our solar tracking solution.

Our Residential Products segment generated an operating margin of 17.2% during the six months ended June 30, 2020 compared to 14.0% during the six months ended June 30, 2019. The increase in operating margin was largely the result of a more favorable alignment of material costs to customer selling prices, followed by volume leverage and continued benefits from 80/20 simplification initiatives.

30

The Industrial and Infrastructure Products segment generated an operating margin of 10.9% during the six months ended June 30, 2020 compared to 7.4% during the six months ended June 30, 2019. The increase in operating margin was the result of a more favorable alignment of material costs to customer selling prices, product mix and ongoing benefit from the Company's 80/20 initiatives.

Unallocated corporate expenses increased $2.3 million from $15.2 million during the six months ended June 30, 2019 to $17.4 million during the six months ended June 30, 2020. This increase from the prior year was the result of investments in the development of our organization and safety of our team and costs incurred to effect the acquisitions closed during the year.

Interest expense decreased by $2.1 million to $0.2 million for the six months ended June 30, 2020 compared to $2.3 million for the six months ended June 30, 2019. The decrease in expense resulted from the redemption of the Company's outstanding $210 million of 6.25% Senior Subordinated Notes during the first quarter of 2019. No amounts were outstanding under our revolving credit facility during the six months ended June 30, 2020 and 2019.

The Company recorded other income of $1.6 million for the six months ended June 30, 2020 and other expense of $0.6 million for the six months ended June 30, 2019. The increase in other income from the prior year was primarily the result of the $1.9 million pre-tax gain on the sale of the Company's self-guided apartment tour application business within the Residential Products segment.

We recognized a provision for income taxes of $11.9 million and $8.1 million, with effective tax rates of 23.2% and 23.5% for the six months ended June 30, 2020, and 2019, respectively. The effective tax rates for the six months ended June 30, 2020 and 2019, respectively, exceeded the U.S. federal statutory rate of 21% due to state taxes and nondeductible permanent differences partially offset by favorable discrete items.

Outlook

Although the Company delivered strong financial performance in the first half of 2020 with a growing backlog, the uncertain pace and strength of an economic recovery in the current environment continues to make providing reliable quantitative guidance difficult. Our momentum and current market trends support a solid outlook for the remainder of the year and gives us confidence that our second half of the year will be stronger than the first half. However, the current status of the pandemic across the country and understanding its potential impact on our markets makes it challenging to provide an outlook and guidance with reliable precision.Therefore, we will continue with suspension of quantitative guidance and will revisit this practice in three months. In the near term, we will continue to focus on what is in front of us, and on what we can control. The resiliency inherent in our business model and our strong balance sheet position us to continue investing in our businesses and strengthening our position in the markets we serve.

31

Liquidity and Capital Resources

Our principal capital requirements are to fund our operations' working capital and capital improvements and to provide capital for acquisitions. The following table sets forth our liquidity position as of:

(in thousands)	June 30, 2020		December 31, 2019
Cash and cash equivalents	$	120,859	$	191,363
Availability on revolving credit facility	394,100		393,991
	$	514,959	$	585,354

We believe that our cash on hand, lack of outstanding debt, and available borrowing capacity provided under the Senior Credit Agreement provide us with ample liquidity and capital resources to weather the economic impacts of the COVID-19 pandemic while continuing to invest in operational excellence, growth initiatives and the development of our organization. As a result of the economic uncertainty caused by the COVID-19 pandemic and federal, state and local governments response to it, we had paused on our acquisition activities yet remained in contact with the companies aligned with our strategic initiatives. While we have a higher level of confidence than we did at the beginning of the second quarter, we are cautiously evaluating and re-engaging in these acquisition processes as we continue to gain more visibility into the impact of the COVID-19 pandemic and our economic outlook. We continue to remain highly focused on managing our working capital, which may include adjusting scheduled deliveries of inventory to match current demand levels, closely monitoring customer credit and collection activities, and working to extend payment terms.

Our Senior Credit Agreement provides us with liquidity and capital resources for use by our U.S. operations. Historically, our foreign operations have generated cash flow from operations sufficient to invest in working capital and fund their capital improvements. As of June 30, 2020, our foreign subsidiaries held $34.1 million of cash in U.S. dollars, of which $13.3 million is available to be repatriated to the U.S., net of $0.7 million of withholding tax. Subsequent cash generated by our foreign subsidiaries will be reinvested into their operations.

We are taking advantage of the option to defer remittance of the employer portion of Social Security tax as provided in the Coronavirus, Aid, Relief and Economic Security Act ("CARES Act"), and estimate that this deferral will allow us to retain approximately $4 million in cash during the remainder of 2020 that would have otherwise been remitted to the federal government. The deferred tax payments will be repaid equally in 2021 and 2022. The CARES Act, along with other foreign government initiatives, also provides for job retention programs, which have qualified some of our businesses to receive payroll tax credits or subsidies during 2020.

Over the long-term, we expect that future investments, including strategic business opportunities such as acquisitions, may be financed through a number of sources, including internally available cash, availability under our revolving credit facility, new debt financing, the issuance of equity securities, or any combination of the above. All potential acquisitions are evaluated based on our acquisition strategy, which includes the enhancement of our existing products, operations, or capabilities, expanding our access to new products, markets, and customers, with the goal of creating compounding and sustainable shareholder value.

These expectations are forward-looking statements based upon currently available information and may change if conditions in the credit and equity markets deteriorate or other circumstances change. To the extent that operating cash flows are lower than current levels, or sources of financing are not available or not available at acceptable terms, our future liquidity may be adversely affected.

Cash Flows

The following table sets forth selected cash flow data for the six months ended June 30, (in thousands):

32

	2020		2019
Cash (used in) provided by:
Operating activities of continuing operations	$	(7,255)	$	6,486
Investing activities of continuing operations	(58,853)		(6,469)
Financing activities of continuing operations	(4,384)		(216,176)
Effect of foreign exchange rate changes	(12)		1,035
Net decrease in cash and cash equivalents	$	(70,504)	$	(215,124)

Operating Activities

Net cash used in operating activities for the six months ended June 30, 2020 of $7.3 million consisted of net income of $39.3 million and non-cash net charges totaling $14.5 million, which include depreciation, amortization, stock compensation, and other non-cash charges, more than offset by a $61.1 million investment in working capital and other net assets. The investment in net working capital and other net assets was largely driven by an investment of $42.4 million in Thermo, one of our recent acquisitions, which was undercapitalized at purchase, along with the payments made during the first quarter for the Company's performance based incentive plans, customer rebates, and settlements of multi-employer pension plans terminated during 2019.

Net cash provided by operating activities of $6.5 million during the six months ended June 30, 2019 consisted of net income of $26.3 million and $18.7 million of non-cash charges including depreciation, amortization, stock compensation and other charges, offset by an investment in working capital and other net assets of $38.5 million.

Investing Activities

Net cash used in investing activities for the six months ended June 30, 2020 of $58.9 million primarily consisted of net cash paid for the acquisitions of Delta Separations of $47.1 million and Thermo of $7.3 million and capital expenditures of $5.2 million, offset by $0.7 million in proceeds from the sale of a business within the Residential Products segment.

Net cash used in investing activities for the six months ended June 30, 2019 of $6.5 million consisted of capital expenditures of $6.2 million and a payment of $0.3 million related to the August 21, 2018 acquisition of SolarBOS, a provider of electrical balance of systems products.

Financing Activities

Net cash used in financing activities for the six months ended June 30, 2020 of $4.4 million was primarily the result of purchases of treasury stock related to the net settlement of tax obligations for participants in the Company's equity incentive plans.

Net cash used in financing activities for the six months ended June 30, 2019 of $216.2 million consisted of the repayment of $212.0 million of 6.25% Senior Subordinated Notes on February 1, 2019 and other debt repayments, purchases of treasury stock of $3.2 million related to the net settlement of tax obligations for participants in the Company's equity incentive plans and the payment of debt issuance costs of $1.2 million, partially offset by proceeds received from the issuance of common stock of $0.2 million from stock options exercised.

See Note 8 to the Company's consolidated financial statements in Part I, Item 1, Financial Statements, of this Form 10-Q for further information on the Company’s Senior Credit Agreement.

Off Balance Sheet Financing Arrangements

We have no off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources that is material to investors.

33

Contractual Obligations

Our contractual obligations have not changed materially from the disclosures included in Item 7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019.

Critical Accounting Estimates

In the current year, there have been no changes to our critical accounting estimates from those disclosed in the consolidated financial statements and accompanying notes contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

Recent Accounting Pronouncements

See Note 2 to the Company's consolidated financial statements in Part I, Item 1 of this Form 10-Q for further information on recent accounting pronouncements.

Item 3. Qualitative and Quantitative Disclosures About Market Risk

In the ordinary course of business, the Company is exposed to various market risk factors, including changes in general economic conditions, competition, foreign exchange rates, and raw materials pricing and availability. In addition, the Company is exposed to other financial market risks, primarily related to its foreign operations. Refer to Item 7A in the Company's Form 10-K for the year ended December 31, 2019 for more information about the Company's exposure to market risk.

Item 4. Controls and Procedures

(a)Evaluation of Disclosure Controls and Procedures

The Company maintains a system of disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). The Company’s Chief Executive Officer and the Chief Financial Officer evaluated the effectiveness of the Company’s disclosure controls as of the end of the period covered in this report. Based upon that evaluation and the definition of disclosure controls and procedures contained in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that as of the end of such period the Company’s disclosure controls and procedures were effective.

(b)Changes in Internal Control over Financial Reporting

There have been no changes in the Company’s internal control over financial reporting (as defined by Rule 13a-15(f) or 15d-15(f)) that occurred during the period covered by this Quarterly Report on Form 10-Q that have materially affected the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Not applicable.

Item 1A. Risk Factors

In addition to the other information set forth in this report, you should carefully consider the risks discussed in “Part I, Item 1A. Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019. These risks and uncertainties have the potential to materially affect our business, financial condition, results of operation, cash flows, and future prospects. Additional risks and uncertainties not currently known to us or that we currently deem immaterial may materially adversely impact our business, financial condition, or operating results. We believe there have been no material changes from the risk factors previously disclosed in our Form 10-K. During the six months ended June 30, 2020, there have been no material changes to the risk factors previously disclosed under Part I, Item 1A. “Risk Factors” in our 2019 Annual Report, other than the addition of the risk factor set forth below, which was included in Part II, Item 1A of our Form 10-Q for the quarter ended March 31, 2020.

The COVID-19 pandemic has significantly impacted worldwide economic conditions and could have a material adverse effect on our business, results of operations, financial condition, and cash flows.

34

The COVID-19 pandemic began to impact our operations late in the first quarter of 2020 and is likely to continue to affect our business as government authorities impose mandatory closures, work-from-home orders and social distancing protocols, seek voluntary facility closures or impose other restrictions to help control the spread of COVID-19. Although we cannot predict the duration or scope of the COVID-19 pandemic, current actions to control the spread of COVID-19 may adversely impact our business, including limiting our ability to implement our strategic growth initiatives, causing delays in our receipt of raw materials and other product components due to disruptions in our supply chain, limiting access to our distribution channels, reducing the availability of our workforce and subcontractors and increased threats of cyber attacks on our information technology infrastructure. The instability in global financial markets and unpredictable changes in our supply chain or our production capacity and customer demand resulting from the COVID-19 pandemic may pose material risk to our results of operations, financial condition, and cash flows. We are continuously monitoring the impact to our business and operations and taking action to mitigate the risks involved. However, prolonged disruption to the economy and the end markets we serve may have a material adverse impact our business, results of operations, financial condition, and cash flows.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Not applicable.

Item 3. Defaults Upon Senior Securities

Not applicable.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

Not applicable.

35

Item 6. Exhibits

(a) Exhibits

31.1	Certification of President and Chief Executive Officer pursuant to Section 302 of the Sarbanes–Oxley Act of 2002.
31.2	Certification of Senior Vice President and Chief Financial Officer pursuant to Section 302 of the Sarbanes–Oxley Act of 2002.
32.1	Certification of the President and Chief Executive Officer pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002.
32.2	Certification of the Senior Vice President and Chief Financial Officer pursuant to Title 18, United States Code, Section 1350, as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002.
101.INS	XBRL Instance Document *
101.SCH	XBRL Taxonomy Extension Schema Document *
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document *
101.LAB	XBRL Taxonomy Extension Label Linkbase Document *
101.PRA	XBRL Taxonomy Extension Presentation Linkbase Document *
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document *

* Submitted electronically with this Quarterly Report on Form 10-Q.

36

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

GIBRALTAR INDUSTRIES, INC.

(Registrant)

/s/ William T. Bosway

William T. Bosway

President and Chief Executive Officer

/s/ Timothy F. Murphy

Timothy F. Murphy

Senior Vice President and
Chief Financial Officer

Date: August 5, 2020

37

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, William T. Bosway, certify that:

1.I have reviewed this report on Form 10-Q of Gibraltar Industries, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) or 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) or 15d-15(f)) for the registrant and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 5, 2020	/s/ William T. Bosway
		William T. Bosway
		President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, Timothy F. Murphy, certify that:

1.I have reviewed this report on Form 10-Q of Gibraltar Industries, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) or 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) or 15d-15(f)) for the registrant and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 5, 2020	/s/ Timothy F. Murphy
		Timothy F. Murphy
		Senior Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF PRESIDENT AND CHIEF EXECUTIVE OFFICER

PURSUANT TO TITLE 18, UNITED STATES CODE, SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, William T. Bosway, President and Chief Executive Officer, of Gibraltar Industries, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

The Quarterly Report on Form 10-Q of the Company for the quarter ended June 30, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ William T. Bosway

William T. Bosway

President and Chief Executive Officer

August 5, 2020

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF SENIOR VICE PRESIDENT AND CHIEF FINANCIAL OFFICER

PURSUANT TO TITLE 18, UNITED STATES CODE, SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Timothy F. Murphy, Senior Vice President and Chief Financial Officer, of Gibraltar Industries, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

The Quarterly Report on Form 10-Q of the Company for the quarter ended June 30, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Timothy F. Murphy

Timothy F. Murphy

Senior Vice President and
Chief Financial Officer

August 5, 2020

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Aug. 03, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	0-22462
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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		32,423,220
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000912562
Current Fiscal Year End Date	--12-31

XML

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net Sales	$ 285,814	$ 262,655	$ 535,253	$ 490,072
Cost of sales	213,556	199,097	406,608	382,614
Gross profit	72,258	63,558	128,645	107,458
Selling, general, and administrative expense	37,667	36,952	78,864	70,286
Income from operations	34,591	26,606	49,781	37,172
Interest expense	214	219	167	2,280
Other (income) expense	(1,787)	(13)	(1,595)	576
Income before taxes	36,164	26,400	51,209	34,316
Provision for income taxes	8,872	6,487	11,858	8,058
Net income	$ 27,292	$ 19,913	$ 39,351	$ 26,258
Net earnings per share:
Basic (in USD per share)	$ 0.84	$ 0.62	$ 1.21	$ 0.81
Diluted (in USD per share)	$ 0.83	$ 0.61	$ 1.20	$ 0.80
Weighted average shares outstanding:
Basic (in shares)	32,605	32,321	32,596	32,300
Diluted (in shares)	32,860	32,642	32,868	32,630

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 27,292	$ 19,913	$ 39,351	$ 26,258
Other comprehensive income (loss):
Foreign currency translation adjustment	2,815	998	(3,083)	1,840
Minimum pension and post retirement benefit plan adjustments	18	12	36	24
Other comprehensive income (loss)	2,833	1,010	(3,047)	1,864
Total comprehensive income	$ 30,125	$ 20,923	$ 36,304	$ 28,122

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Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 120,859	$ 191,363
Accounts receivable, net of allowance of $6,270 and $6,330	193,609	147,515
Inventories	79,058	78,476
Prepaid expenses and other current assets	22,849	19,748
Total current assets	416,375	437,102
Property, plant, and equipment, net	94,723	95,409
Operating lease assets	33,383	27,662
Goodwill	378,740	329,705
Acquired intangibles	110,481	92,592
Other assets	1,794	1,980
Total assets	1,035,496	984,450
Current liabilities:
Accounts payable	116,853	83,136
Accrued expenses	94,009	98,463
Billings in excess of cost	29,281	47,598
Total current liabilities	240,143	229,197
Deferred income taxes	40,022	40,334
Non-current operating lease liabilities	24,400	19,669
Other non-current liabilities	21,167	21,286
Shareholders’ equity:
Preferred stock, $0.01 par value; authorized 10,000 shares; none outstanding	0	0
Common stock, $0.01 par value; authorized 50,000 shares; 33,413 shares and 33,192 shares issued and outstanding in 2020 and 2019	334	332
Additional paid-in capital	299,829	295,582
Retained earnings	444,728	405,668
Accumulated other comprehensive loss	(8,438)	(5,391)
Cost of 993 and 906 common shares held in treasury in 2020 and 2019	(26,689)	(22,227)
Total shareholders’ equity	709,764	673,964
Total liabilities and shareholders' equity	$ 1,035,496	$ 984,450
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)	50,000,000	50,000,000

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 6,270	$ 6,330
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)	50,000,000	50,000,000
Common stock, shares issued (in shares)	33,413,000	33,192,000
Treasury stock, shares (in shares)	993,000	906,000

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities
Net income	$ 39,351	$ 26,258
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	11,054	9,892
Stock compensation expense	4,171	6,091
Gain on sale of business	(1,881)	0
Exit activity costs, non-cash	346	0
(Benefit of) provision for deferred income taxes	(216)	278
Other, net	1,018	2,437
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	(25,842)	(41,156)
Inventories	5,661	13,464
Other current assets and other assets	1,996	(4,983)
Accounts payable	(1,732)	4,012
Accrued expenses and other non-current liabilities	(41,181)	(9,807)
Net cash (used in) provided by operating activities	(7,255)	6,486
Cash Flows from Investing Activities
Acquisitions, net of cash acquired	(54,385)	(264)
Net proceeds from sale of property and equipment	59	60
Purchases of property, plant, and equipment	(5,231)	(6,265)
Net proceeds from sale of business	704	0
Net cash used in investing activities	(58,853)	(6,469)
Cash Flows from Financing Activities
Long-term debt payments	0	(212,000)
Payment of debt issuance costs	0	(1,235)
Purchase of treasury stock at market prices	(4,462)	(3,149)
Net proceeds from issuance of common stock	78	208
Net cash used in financing activities	(4,384)	(216,176)
Effect of exchange rate changes on cash	(12)	1,035
Net decrease in cash and cash equivalents	(70,504)	(215,124)
Cash and cash equivalents at beginning of year	191,363	297,006
Cash and cash equivalents at end of period	$ 120,859	$ 81,882

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Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ 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	Treasury Stock
Balance, shares at Dec. 31, 2018			32,887					796
Balance, value at Dec. 31, 2018	$ 596,693		$ 329	$ 282,525	$ 338,995	$ 1,582	$ (7,234)	$ (17,922)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,345				6,345
Foreign currency translation adjustment	842						842
Minimum pension and post retirement benefit plan adjustments, net of taxes of $7	12						12
Stock compensation expense	2,371			2,371
Stock options exercised, shares			12
Stock options exercised	139			139
Net settlement of restricted stock units, shares			127					59
Net settlement of restricted stock units	(2,151)		$ 1	(1)				$ (2,151)
Balance, shares at Mar. 31, 2019			33,026					855
Balance, value at Mar. 31, 2019	605,833		$ 330	285,034	346,922		(6,380)	$ (20,073)
Balance, shares at Dec. 31, 2018			32,887					796
Balance, value at Dec. 31, 2018	596,693		$ 329	282,525	338,995	1,582	(7,234)	$ (17,922)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,258
Foreign currency translation adjustment	1,840
Balance, shares at Jun. 30, 2019			33,101					880
Balance, value at Jun. 30, 2019	629,547		$ 331	288,822	366,835		(5,370)	$ (21,071)
Balance, shares at Mar. 31, 2019			33,026					855
Balance, value at Mar. 31, 2019	605,833		$ 330	285,034	346,922		(6,380)	$ (20,073)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,913				19,913
Foreign currency translation adjustment	998						998
Minimum pension and post retirement benefit plan adjustments, net of taxes of $7	12						12
Stock compensation expense	3,720			3,720
Stock options exercised, shares			5
Stock options exercised	69			69
Net settlement of restricted stock units, shares			62					25
Net settlement of restricted stock units	(998)		$ 1	(1)				$ (998)
Balance, shares at Jun. 30, 2019			33,101					880
Balance, value at Jun. 30, 2019	629,547		$ 331	288,822	366,835		(5,370)	$ (21,071)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, New Issues			8
Balance, shares at Dec. 31, 2019			33,192					906
Balance, value at Dec. 31, 2019	673,964	$ (291)	$ 332	295,582	405,668	(291)	(5,391)	$ (22,227)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,059				12,059
Foreign currency translation adjustment	(5,898)						(5,898)
Minimum pension and post retirement benefit plan adjustments, net of taxes of $7	18						18
Stock compensation expense	1,665			1,665
Stock options exercised, shares			3
Stock options exercised	24			24
Net settlement of restricted stock units, shares			193					80
Net settlement of restricted stock units	(4,184)		$ 2	(2)				$ (4,184)
Balance, shares at Mar. 31, 2020			33,388					986
Balance, value at Mar. 31, 2020	677,357		$ 334	297,269	417,436		(11,271)	$ (26,411)
Balance, shares at Dec. 31, 2019			33,192					906
Balance, value at Dec. 31, 2019	673,964	$ (291)	$ 332	295,582	405,668	$ (291)	(5,391)	$ (22,227)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	39,351
Foreign currency translation adjustment	(3,083)
Balance, shares at Jun. 30, 2020			33,413					993
Balance, value at Jun. 30, 2020	709,764		$ 334	299,829	444,728		(8,438)	$ (26,689)
Balance, shares at Mar. 31, 2020			33,388					986
Balance, value at Mar. 31, 2020	677,357		$ 334	297,269	417,436		(11,271)	$ (26,411)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	27,292				27,292
Foreign currency translation adjustment	2,815						2,815
Minimum pension and post retirement benefit plan adjustments, net of taxes of $7	18						18
Stock compensation expense	2,506			2,506
Stock options exercised, shares			6
Stock options exercised	54			54
Net settlement of restricted stock units, shares			15					7
Net settlement of restricted stock units	(278)		$ 0	0				$ (278)
Balance, shares at Jun. 30, 2020			33,413					993
Balance, value at Jun. 30, 2020	$ 709,764		$ 334	$ 299,829	$ 444,728		$ (8,438)	$ (26,689)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, New Issues			4

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Consolidated Statement of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Adjustment to pension benefit liability, taxes	$ 6	$ 7	$ 5	$ 4

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Consolidated Financial Statements

6 Months Ended

Jun. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

CONSOLIDATED FINANCIAL STATEMENTS

CONSOLIDATED FINANCIAL STATEMENTS

The accompanying unaudited consolidated financial statements of Gibraltar Industries, Inc. (the "Company") have been prepared by management in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments consisting of normal recurring adjustments considered necessary for the fair presentation of results for the interim period have been included. The Company's operations are seasonal; for this and other reasons, such as the impact of the COVID-19 pandemic, financial results for any interim period are not necessarily indicative of the results expected for any subsequent interim period or for the full year. The accompanying unaudited consolidated financial statements should be read in conjunction with the financial statements and notes thereto included in our annual Form 10-K for the year ended December 31, 2019.

The balance sheet at December 31, 2019 has been derived from the audited financial statements at that date, but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.

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Recent Accounting Pronouncements (Notes)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

RECENT ACCOUNTING PRONOUNCEMENTS

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2016-13 Financial Instruments - Credit Losses (Topic 326)	The objective of this standard is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit, including trade receivables, held by an entity at each reporting date. The amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the modified retrospective approach through a cumulative-effect adjustment to retained earnings of $291,000, net of $96,000 of income taxes, on the opening consolidated balance sheet as of January 1, 2020. The Company's financial assets that are in the scope of the standard are contract assets and accounts receivables which are short-term in nature. Additionally, the Company has identified and implemented appropriate changes to the Company's business processes, policies and internal controls to support reporting and disclosures. Date of adoption: Q1 2020
ASU 2018-15 Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	The amendments in this update require an entity to apply the same requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract as the entity would for implementation costs incurred to develop or obtain internal-use software. The accounting for the service element is not affected by the amendments in this update.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the prospective method of adoption, and the adoption did not have a material impact to the Company's financial statements. Date of adoption: Q1 2020

Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	The Company is currently evaluating the requirements of this standard. The standard is not expected to have a material impact on the Company's financial statements. Date of adoption: Q1 2021

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Accounts Receivable and Allowance for Doubtful Accounts

6 Months Ended

Jun. 30, 2020

Receivables [Abstract]

ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS

ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS

Accounts receivable consists of the following (in thousands):

	June 30, 2020		December 31, 2019
Trade accounts receivable	$	175,251	$	133,238
Costs in excess of billings	24,628		20,607
Total accounts receivables	199,879		153,845
Less allowance for doubtful accounts and contract assets	(6,270)		(6,330)
Accounts receivable	$	193,609	$	147,515

Refer to Note 4 "Revenue" concerning the Company's costs in excess of billings.

The Company is exposed to credit losses through sales of products and services. 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. 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. The Company considered the current and expected future economic and market conditions surrounding the COVID-19 pandemic and determined that the estimate of credit losses was not significantly impacted as of June 30, 2020.

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

The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable to present the net amount expected to be collected.

Beginning balance as of January 1, 2020	$	6,330
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings	387
Bad debt expense	687
Write-off charged against the allowance and other adjustments	(1,134)
Ending balance as of June 30, 2020	$	6,270

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Revenue Revenue

6 Months Ended

Jun. 30, 2020

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 and greenhouse structures; extraction systems; roof and foundation ventilation products; centralized mail systems and electronic package solutions; rain dispersion products and roofing accessories; expanded and perforated metal; perimeter security solutions; expansion joints and structural bearings.

Refer to Note 14 "Segment Information" for additional information related to revenue recognized by timing of transfer of control by reportable segment.

As of June 30, 2020, the Company's remaining performance obligations are part of contracts that have an original expected duration of one year or less.

Contract assets consist of costs in excess of billings. Contract liabilities consist of billings in excess of cost and unearned revenue. The following table presents the beginning and ending balances of costs in excess of billings, billings in excess of cost and unearned revenue as of June 30, 2020 and December 31, 2019, respectively, and

revenue recognized during the six months ended June 30, 2020 and 2019, respectively, that was in billings in excess of cost and unearned revenue at the beginning of the period (in thousands):

	June 30, 2020		December 31, 2019
Costs in excess of billings	$	24,627	$	20,607
Billings in excess of cost	(29,281)		(47,598)
Unearned revenue	(16,503)		(17,311)

	Six Months Ended June 30, 2020		Six Months Ended June 30, 2019
Revenue recognized in the period from:
Amounts included in billings in excess of cost at the beginning of the period	$	42,115	$	11,357
Amounts included in unearned revenue at the beginning of the period	$	12,553	$	6,153

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Inventories

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIES

Inventories consist of the following (in thousands):

	June 30, 2020		December 31, 2019
Raw material	$	43,234	$	45,700
Work-in-process	6,206		5,988
Finished goods	29,618		26,788
Total inventories	$	79,058	$	78,476

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Acquisitions

6 Months Ended

Jun. 30, 2020

Business Combinations [Abstract]

ACQUISITIONS

ACQUISITIONS

2020 Acquisitions

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 described as "Delta Separations"). 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 Renewable Energy and Conservation segment. The purchase consideration for the acquisition of Delta Separations was $47.1 million, which includes a working capital adjustment and certain other adjustments provided for in the asset purchase agreement.

The purchase price for the acquisition of the assets was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $32.9 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 presence in the extraction processing markets.

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

Working capital	$	4,063
Property, plant and equipment	219
Acquired intangible assets	13,000
Other assets	951
Other liabilities	(4,027)
Goodwill	32,906
Fair value of purchase consideration	$	47,112

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	6,000	Indefinite
Technology	3,200		10 years
Customer relationships	3,200		11 years
Non-compete agreements	300		5 years
Backlog	300		0.25 years
Total	$	13,000

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 supporting the plant based organic food market. The results of Thermo have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The preliminary purchase consideration for the acquisition of Thermo was $7.3 million.

The purchase price for the acquisition was preliminarily allocated to the assets acquired and liabilities assumed based upon their respective estimated fair values and the remaining consideration was recorded to goodwill. Goodwill of approximately $16.1 million was recorded, 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 commercial greenhouse markets. The preliminary allocation of the purchase price is subject to adjustments during the measurement period

as third-party valuations are finalized. The final purchase price allocation will be completed no later than the first quarter of 2021.

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	$	135
Working capital	(19,718)
Property, plant and equipment	1,069
Acquired intangible assets	9,750
Other current assets	35
Other assets	1,335
Other liabilities	(1,335)
Goodwill	16,062
Fair value of purchase consideration	$	7,333

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	660	3 years
Technology	2,639		15 years
Customer relationships	6,451		10 years
Total	$	9,750

2019 Acquisition

On August 30, 2019, the Company acquired all of the outstanding membership interests of Apeks LLC ("Apeks"), a designer and manufacturer of botanical oil extraction systems and equipment. The results of Apeks have been included in the Company's consolidated financial results since the date of acquisition within the Company's Renewable Energy and Conservation segment. The aggregate purchase consideration for the acquisition of Apeks was $12.6 million, which includes a working capital adjustment and certain other adjustments provided for in the membership interest purchase agreement.

The purchase price for the acquisition was allocated to the assets acquired and liabilities assumed based upon their respective fair values. The excess consideration was recorded as goodwill and approximated $6.4 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 presence in the extraction processing markets.

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

Cash	$	4,154
Working capital	(1,515)
Property, plant and equipment	1,059
Acquired intangible assets	3,000
Other assets	508
Other liabilities	(1,081)
Goodwill	6,436
Fair value of purchase consideration	$	12,561

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	1,400	Indefinite
Technology	900		7 years
Customer relationships	700		6 years
Total	$	3,000

In determining the allocation of the purchase price to the assets acquired and the liabilities assumed, the Company uses all available information to make fair value determinations using Level 3 unobservable inputs in which little or no market data exists, and therefore, engages independent valuation specialists to assist in the fair value determination of the acquired long-lived assets.

The acquisitions of Delta Separations, Thermo and Apeks were funded from available cash on hand.

The Company 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 statement of operations. The Company also 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 acquisition-related costs consisted of the following for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Selling, general and administrative costs	$	588	$	4	$	1,848	$	4
Cost of sales	634		—		634		—
Total acquisition-related costs	$	1,222	$	4	$	2,482	$	4

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Goodwill and Related Intangible Assets

6 Months Ended

Jun. 30, 2020

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 six months ended June 30, 2020 are as follows (in thousands):

	Renewable Energy & Conservation		Residential Products		Industrial and Infrastructure Products		Total
Balance at December 31, 2019	$	77,602	$	198,075	$	54,028	$	329,705
Acquired goodwill	49,001		—		—		49,001
Adjustments to prior year acquisitions	579		—		—		579
Foreign currency translation	(281)		—		(264)		(545)
Balance at June 30, 2020	$	126,901	$	198,075	$	53,764	$	378,740

The Company conducts its annual goodwill impairment test as of October 31 each year. All of the Company’s ten reporting units had fair values exceeding their carrying values as of October 31, 2019. In addition to the annual impairment test, the Company is required to regularly assess whether a triggering event has occurred which would require interim impairment testing. The Company considered the current and future macroeconomic and market conditions, along with its current market capitalization, projected cash flows and internal and external forecasts, and projections relating to the impact of the COVID-19 pandemic on each of its reporting units. The Company determined that a triggering event has not occurred which would require an interim impairment test to be performed.

Acquired Intangible Assets

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

	June 30, 2020				December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	51,295	$	—	$	45,770	$	—
Finite-lived intangible assets:
Trademarks	6,753		4,328		6,139		4,105
Unpatented technology	35,383		17,031		29,544		15,807
Customer relationships	80,976		42,876		71,195		40,294
Non-compete agreements	1,949		1,640		1,649		1,499
Backlog	300		300		—		—
	125,361		66,175		108,527		61,705
Total acquired intangible assets	$	176,656	$	66,175	$	154,297	$	61,705

The following table summarizes the acquired intangible asset amortization expense for the three and six months ended June 30 (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Amortization expense	$	2,412	$	1,797	$	4,490	$	3,594

Amortization expense related to acquired intangible assets for the remainder of fiscal 2020 and the next five years thereafter is estimated as follows (in thousands):

	2020		2021		2022		2023		2024		2025
Amortization expense	$	3,860	$	7,633	$	7,154	$	6,617	$	6,363	$	6,203

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Long-Term Debt

6 Months Ended

Jun. 30, 2020

Long-term Debt, Unclassified [Abstract]

LONG-TERM DEBT

LONG-TERM DEBT

The Company did not have any long-term debt outstanding at June 30, 2020 and December 31, 2019.

Senior Credit Agreement

On January 24, 2019, the Company entered into a 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 provides for a revolving credit facility and letters of credit in an aggregate amount equal to $400 million. The Company can request additional financing from the lenders 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. The Senior Credit Agreement contains three financial covenants. As of June 30, 2020, the Company is in compliance with all three covenants.

Borrowings under the Senior Credit Agreement are secured by the trade receivables, inventory, personal property, equipment, and general intangibles of the Company’s significant domestic subsidiaries.

Standby letters of credit of $5.9 million have been issued under the Senior Credit Agreement on behalf of the Company as of June 30, 2020. These letters of credit reduce the amount otherwise available under the revolving credit facility. As of June 30, 2020, the Company had $394.1 million of availability under the revolving credit facility. No borrowings were outstanding under the Company's revolving credit facility at June 30, 2020 and December 31, 2019.

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Accumulated Other Comprehensive (Loss) Income

6 Months Ended

Jun. 30, 2020

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

ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

The following tables summarize the cumulative balance of each component of accumulated other comprehensive loss, net of tax, for the three and six months ended June 30, (in thousands):

	Foreign Currency Translation Adjustment		Minimum  pension and post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated  Other Comprehensive (Loss) Income
Balance at December 31, 2019	$	(4,173)	$	(1,939)	$	(6,112)	$	(721)	$	(5,391)
Minimum pension and post retirement health care plan adjustments	—		25		25		7		18
Foreign currency translation adjustment	(5,898)		—		(5,898)		—		(5,898)
Balance at March 31, 2020	$	(10,071)	$	(1,914)	$	(11,985)	$	(714)	$	(11,271)
Minimum pension and post retirement health care plan adjustments	—		24		24		6		18
Foreign currency translation adjustment	2,815		—		2,815		—		2,815
Balance at June 30, 2020	$	(7,256)	$	(1,890)	$	(9,146)	$	(708)	$	(8,438)

	Foreign Currency Translation Adjustment		Minimum  pension and post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated  Other Comprehensive (Loss) Income
Balance at December 31, 2018	$	(5,939)	$	(2,040)	$	(7,979)	$	(745)	$	(7,234)
Minimum pension and post retirement health care plan adjustments	—		16		16		4		12
Foreign currency translation adjustment	842		—		842		—		842
Balance at March 31, 2019	$	(5,097)	$	(2,024)	$	(7,121)	$	(741)	$	(6,380)
Minimum pension and post retirement health care plan adjustments	—		17		17		5		12
Foreign currency translation adjustment	998		—		998		—		998
Balance at June 30, 2019	$	(4,099)	$	(2,007)	$	(6,106)	$	(736)	$	(5,370)

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

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Equity-Based Compensation

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

EQUITY-BASED COMPENSATION

EQUITY-BASED COMPENSATION

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"). 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.

In 2016, the shareholders of the Company approved the adoption of the Gibraltar Industries, Inc. 2016 Stock Plan for Non-Employee Directors ("Non-Employee Directors Plan") which allows the Company to grant awards of shares of the Company's common stock to 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.

Equity Based Awards - Settled in Stock

The following table sets forth the number of equity-based awards granted during the six months ended June 30, which will convert to shares upon vesting, along with the weighted average grant date fair values:

	2020			2019
Awards	Number of Awards (1)	Weighted Average Grant Date Fair Value		Number of Awards (2)	Weighted Average Grant Date Fair Value
Performance stock units	127,397	$	53.16	145,420	$	40.55
Restricted stock units	43,842	$	52.12	117,821	$	39.37
Deferred stock units	12,402	$	45.98	7,509	$	37.95
Common shares	4,134	$	45.98	7,509	$	37.95

(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 performance stock units 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 revenue, gross profit and operating profit thresholds over a two or 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.

(2) Performance stock units granted in 2019 have converted to 168,688 shares to be issued to recipients in the first quarter of 2022, representing 116% of the targeted 2019 award, based on the Company’s actual ROIC compared to ROIC target for the performance period ended December 31, 2019.

Equity Based Awards - Settled in Cash

The Company's equity-based liability includes awards under a management stock purchase plan. As of June 30, 2020, the Company's total share-based liabilities recorded on the consolidated balance sheet were $29.2 million, of which $12.7 million was included in non-current liabilities. The share-based liabilities as of December 31, 2019 were $28.0 million, of which $13.2 million was included in non-current liabilities.

The Management Stock Purchase Plan ("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 compensation.

The deferrals and company-matching are credited to an account that represents a share-based liability. Eligible employees may direct their deferrals to invest in phantom restricted stock units that are measured on the 200-day average of the Company’s stock price, hypothetical investment alternatives available under Company’s 401(k) plan that are measured at market value, or a combination of both. Non-employee directors may only direct their deferrals into phantom restricted stock units that are measured on the 200-day average of the Company’s stock price. The company-matching is made in phantom restricted stock units and measured on the 200-day average of the Company’s 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.

The following table provides the number of restricted stock units credited to active participant accounts and the payments made with respect to restricted stock units issued under the MSPP during the six months ended June 30,:

	2020		2019
Restricted stock units credited	52,965		55,513
Share-based liabilities paid (in thousands)	$	4,433	$	5,742

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Exit Activity Costs and Asset Impairments

6 Months Ended

Jun. 30, 2020

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, the sale and exiting of less profitable businesses or product lines, and the reduction in our manufacturing footprint.

Exit activity costs were incurred during the six months ended June 30, 2020 and 2019 which related to moving and closing costs, contract terminations, and severance incurred as a result of process simplification initiatives. During the six months ended June 30, 2020, the Company closed one facility in conjunction with these initiatives. No facilities were closed as a result of these initiatives during the first half of 2019.

The following tables set forth the asset impairment charges and exit activity costs incurred by segment during the three and six months ended June 30, related to the restructuring activities described above (in thousands):

	Three months ended June 30,
	2020						2019
	Inventory write-downs &/or asset impairment charges		Exit activity costs		Total		Inventory write-downs &/or asset impairment charges		Exit activity (recoveries) costs, net		Total
Renewable Energy and Conservation	$	72	$	316	$	388	$	—	$	(95)	$	(95)
Residential Products	—		263		263		—		219		219
Industrial and Infrastructure Products	274		40		314		—		1,346		1,346
Corporate	—		45		45		—		666		666
Total exit activity costs & asset impairments	$	346	$	664	$	1,010	$	—	$	2,136	$	2,136

	Six months ended June 30,
	2020						2019
	Inventory write-downs &/or asset impairment charges		Exit activity costs		Total		Inventory write-downs &/or asset impairment charges		Exit activity (recoveries) costs, net		Total
Renewable Energy and Conservation	$	72	$	334	$	406	$	—	$	(1)	$	(1)
Residential Products	—		484		484		—		370		370
Industrial and Infrastructure Products	274		38		312		—		1,313		1,313
Corporate	—		99		99		—		673		673
Total exit activity costs & asset impairments	$	346	$	955	$	1,301	$	—	$	2,355	$	2,355

The following table provides a summary of where the asset impairments and exit activity costs were recorded in the consolidated statements of income for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Cost of sales	$	786	$	319	$	873	$	285
Selling, general, and administrative expense	224		1,817		428		2,070
Total asset impairment and exit activity charges	$	1,010	$	2,136	$	1,301	$	2,355

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

	2020		2019
Balance at January 1	$	5,449	$	1,923
Exit activity costs recognized	955		2,355
Cash payments	(5,575)		(1,329)
Balance at June 30	$	829	$	2,949

On June 30, 2020, the Company sold its self-guided apartment tour application business to a third party from its Residential Products 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 (income) expense in the consolidated statements of income. This divestiture does not meet the criteria to be reported as a discontinued operation nor will it have a major effect on the Company's operations.

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Income Taxes

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The following table summarizes the provision for income taxes for continuing operations (in thousands) for the three and six months ended June 30, and the applicable effective tax rates:

	Three Months Ended    June 30,						Six Months Ended    June 30,
	2020			2019			2020			2019
Provision for income taxes	$	8,872		$	6,487		$	11,858		$	8,058
Effective tax rate	24.5		%	24.6		%	23.2		%	23.5		%

The effective tax rate for the three and six months ended June 30, 2020 and 2019, respectively, was more than the U.S. federal statutory rate of 21% due to state taxes and nondeductible permanent differences partially offset by favorable discrete items.

On March 27, 2020, the President of the United States signed into law the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"). The CARES Act, among other things, includes certain income tax provisions for individuals and corporations; however, these benefits do not materially impact the Company’s income tax provision.

On July 20, 2020, the Department of Treasury and the Internal Revenue Service issued final regulations addressing the treatment of income earned by certain foreign corporations related to the treatment of income that is subject to high rate of foreign tax under the global intangible low-taxed income ("GILTI") and subpart F income regimes. These provisions would be effective for the Company starting in 2021 but includes retroactive provisions that may allow for retroactive application. The Company is currently evaluating the impact of this guidance on its consolidated financial statements.

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Earnings per Share

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

Basic earnings and diluted weighted-average shares outstanding are as follows for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Numerator:
Net income available to common shareholders	$	27,292	$	19,913	$	39,351	$	26,258
Denominator for basic earnings per share:
Weighted average shares outstanding	32,605		32,321		32,596		32,300
Denominator for diluted earnings per share:
Weighted average shares outstanding	32,605		32,321		32,596		32,300
Common stock options and stock units	255		321		272		330
Weighted average shares and conversions	32,860		32,642		32,868		32,630

The weighted average number of diluted shares does not include potential anti-dilutive common shares issuable pursuant to equity based incentive compensation awards, aggregating to 77,000 and 366,000 for the three months ended June 30, 2020 and 2019, respectively, and 47,000 and 312,000 for the six months ended June 30, 2020 and 2019, respectively.

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Segment Information

6 Months Ended

Jun. 30, 2020

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATIONThe Company is organized into three reportable segments on the basis of the production process and products and services provided by each segment, identified as follows:

(i)Renewable Energy and Conservation, which primarily includes designing, engineering, manufacturing and installation of solar racking, electrical balance of systems, extraction systems and greenhouse structures;

(ii)Residential Products, which primarily includes roof and foundation ventilation products, rain dispersion products and roofing accessories, centralized mail systems and electronic package solutions; and

(iii)Industrial and Infrastructure Products, which primarily includes expanded and perforated metal, perimeter security systems, expansion joints, and structural bearings.

When determining the reportable segments, the Company aggregated operating segments based on their similar economic and operating characteristics.

The following table illustrates certain measurements used by management to assess performance of the segments described above for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Net sales:
Renewable Energy and Conservation	$	98,259	$	76,004	$	194,756	$	144,841
Residential Products	139,472		130,433		242,891		234,142
Industrial and Infrastructure Products	48,263		56,547		98,064		111,735
Less: Intersegment sales	(180)		(329)		(458)		(646)
Net Industrial and Infrastructure Products	48,083		56,218		97,606		111,089
Total consolidated net sales	$	285,814	$	262,655	$	535,253	$	490,072
Income from operations:
Renewable Energy and Conservation	$	9,188	$	9,649	$	14,887	$	11,281
Residential Products	27,964		20,778		41,689		32,868
Industrial and Infrastructure Products	6,644		4,069		10,633		8,198
Unallocated Corporate Expenses	(9,205)		(7,890)		(17,428)		(15,175)
Total consolidated income from operations	$	34,591	$	26,606	$	49,781	$	37,172

The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	12,416	$	138,288	$	37,179	$	187,883
Over Time	85,843		1,184		10,904		97,931
Total net sales	$	98,259	$	139,472	$	48,083	$	285,814

	Three Months Ended June 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	8,469	$	129,566	$	46,315	$	184,350
Over Time	67,535		867		9,903		78,305
Total net sales	$	76,004	$	130,433	$	56,218	$	262,655

	Six Months Ended June 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	27,004	$	240,619	$	76,674	$	344,297
Over Time	167,752		2,272		20,932		190,956
Total net sales	$	194,756	$	242,891	$	97,606	$	535,253

	Six Months Ended June 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	15,759	$	232,458	$	91,602	$	339,819
Over Time	129,082		1,684		19,487		150,253
Total net sales	$	144,841	$	234,142	$	111,089	$	490,072

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Recent Accounting Pronouncements (Policies)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2016-13 Financial Instruments - Credit Losses (Topic 326)	The objective of this standard is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit, including trade receivables, held by an entity at each reporting date. The amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the modified retrospective approach through a cumulative-effect adjustment to retained earnings of $291,000, net of $96,000 of income taxes, on the opening consolidated balance sheet as of January 1, 2020. The Company's financial assets that are in the scope of the standard are contract assets and accounts receivables which are short-term in nature. Additionally, the Company has identified and implemented appropriate changes to the Company's business processes, policies and internal controls to support reporting and disclosures. Date of adoption: Q1 2020
ASU 2018-15 Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	The amendments in this update require an entity to apply the same requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract as the entity would for implementation costs incurred to develop or obtain internal-use software. The accounting for the service element is not affected by the amendments in this update.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the prospective method of adoption, and the adoption did not have a material impact to the Company's financial statements. Date of adoption: Q1 2020

Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	The Company is currently evaluating the requirements of this standard. The standard is not expected to have a material impact on the Company's financial statements. Date of adoption: Q1 2021

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Recent Accounting Pronouncements - (Tables)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

Recent Accounting Pronouncements Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2016-13 Financial Instruments - Credit Losses (Topic 326)	The objective of this standard is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit, including trade receivables, held by an entity at each reporting date. The amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the modified retrospective approach through a cumulative-effect adjustment to retained earnings of $291,000, net of $96,000 of income taxes, on the opening consolidated balance sheet as of January 1, 2020. The Company's financial assets that are in the scope of the standard are contract assets and accounts receivables which are short-term in nature. Additionally, the Company has identified and implemented appropriate changes to the Company's business processes, policies and internal controls to support reporting and disclosures. Date of adoption: Q1 2020
ASU 2018-15 Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	The amendments in this update require an entity to apply the same requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract as the entity would for implementation costs incurred to develop or obtain internal-use software. The accounting for the service element is not affected by the amendments in this update.	The standard is effective for the Company as of January 1, 2020. The Company adopted the amendments in this update using the prospective method of adoption, and the adoption did not have a material impact to the Company's financial statements. Date of adoption: Q1 2020

Recent Accounting Pronouncements Not Yet Adopted

Standard	Description	Financial Statement Effect or Other Significant Matters
ASU No. 2019-12 Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not been issued, with the amendments to be applied on a respective, modified retrospective or prospective basis, depending on the specific amendment.	The Company is currently evaluating the requirements of this standard. The standard is not expected to have a material impact on the Company's financial statements. Date of adoption: Q1 2021

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Accounts Receivable and Allowance for Doubtful Accounts (Tables)

6 Months Ended

Jun. 30, 2020

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable consists of the following (in thousands):

	June 30, 2020		December 31, 2019
Trade accounts receivable	$	175,251	$	133,238
Costs in excess of billings	24,628		20,607
Total accounts receivables	199,879		153,845
Less allowance for doubtful accounts and contract assets	(6,270)		(6,330)
Accounts receivable	$	193,609	$	147,515

The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable to present the net amount expected to be collected.

Beginning balance as of January 1, 2020	$	6,330
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings	387
Bad debt expense	687
Write-off charged against the allowance and other adjustments	(1,134)
Ending balance as of June 30, 2020	$	6,270

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Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability

The following table presents the beginning and ending balances of costs in excess of billings, billings in excess of cost and unearned revenue as of June 30, 2020 and December 31, 2019, respectively, and

revenue recognized during the six months ended June 30, 2020 and 2019, respectively, that was in billings in excess of cost and unearned revenue at the beginning of the period (in thousands):

	June 30, 2020		December 31, 2019
Costs in excess of billings	$	24,627	$	20,607
Billings in excess of cost	(29,281)		(47,598)
Unearned revenue	(16,503)		(17,311)

	Six Months Ended June 30, 2020		Six Months Ended June 30, 2019
Revenue recognized in the period from:
Amounts included in billings in excess of cost at the beginning of the period	$	42,115	$	11,357
Amounts included in unearned revenue at the beginning of the period	$	12,553	$	6,153

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Inventories (Tables)

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Schedule Of Inventories

Inventories consist of the following (in thousands):

	June 30, 2020		December 31, 2019
Raw material	$	43,234	$	45,700
Work-in-process	6,206		5,988
Finished goods	29,618		26,788
Total inventories	$	79,058	$	78,476

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Acquisitions (Tables)

6 Months Ended

Jun. 30, 2020

Business Combinations [Abstract]

Schedule of Acquisition

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

Working capital	$	4,063
Property, plant and equipment	219
Acquired intangible assets	13,000
Other assets	951
Other liabilities	(4,027)
Goodwill	32,906
Fair value of purchase consideration	$	47,112

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	$	135
Working capital	(19,718)
Property, plant and equipment	1,069
Acquired intangible assets	9,750
Other current assets	35
Other assets	1,335
Other liabilities	(1,335)
Goodwill	16,062
Fair value of purchase consideration	$	7,333

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

Cash	$	4,154
Working capital	(1,515)
Property, plant and equipment	1,059
Acquired intangible assets	3,000
Other assets	508
Other liabilities	(1,081)
Goodwill	6,436
Fair value of purchase consideration	$	12,561

The acquisition-related costs consisted of the following for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Selling, general and administrative costs	$	588	$	4	$	1,848	$	4
Cost of sales	634		—		634		—
Total acquisition-related costs	$	1,222	$	4	$	2,482	$	4

Intangible Assets Acquired

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	6,000	Indefinite
Technology	3,200		10 years
Customer relationships	3,200		11 years
Non-compete agreements	300		5 years
Backlog	300		0.25 years
Total	$	13,000

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	660	3 years
Technology	2,639		15 years
Customer relationships	6,451		10 years
Total	$	9,750

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

	Fair Value		Weighted-Average Amortization Period
Trademarks	$	1,400	Indefinite
Technology	900		7 years
Customer relationships	700		6 years
Total	$	3,000

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Goodwill and Related Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Changes In Carrying Amount Of Goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2020 are as follows (in thousands):

	Renewable Energy & Conservation		Residential Products		Industrial and Infrastructure Products		Total
Balance at December 31, 2019	$	77,602	$	198,075	$	54,028	$	329,705
Acquired goodwill	49,001		—		—		49,001
Adjustments to prior year acquisitions	579		—		—		579
Foreign currency translation	(281)		—		(264)		(545)
Balance at June 30, 2020	$	126,901	$	198,075	$	53,764	$	378,740

Schedule Of Acquired Intangible Assets

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

	June 30, 2020				December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Indefinite-lived intangible assets:
Trademarks	$	51,295	$	—	$	45,770	$	—
Finite-lived intangible assets:
Trademarks	6,753		4,328		6,139		4,105
Unpatented technology	35,383		17,031		29,544		15,807
Customer relationships	80,976		42,876		71,195		40,294
Non-compete agreements	1,949		1,640		1,649		1,499
Backlog	300		300		—		—
	125,361		66,175		108,527		61,705
Total acquired intangible assets	$	176,656	$	66,175	$	154,297	$	61,705

Schedule of Acquired Intangible Asset Amortization Expense

The following table summarizes the acquired intangible asset amortization expense for the three and six months ended June 30 (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Amortization expense	$	2,412	$	1,797	$	4,490	$	3,594

Schedule Of Amortization Expense

Amortization expense related to acquired intangible assets for the remainder of fiscal 2020 and the next five years thereafter is estimated as follows (in thousands):

	2020		2021		2022		2023		2024		2025
Amortization expense	$	3,860	$	7,633	$	7,154	$	6,617	$	6,363	$	6,203

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Accumulated Other Comprehensive (Loss) Income (Tables)

6 Months Ended

Jun. 30, 2020

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

Schedule Of Components Of Accumulated Other Comprehensive Loss

The following tables summarize the cumulative balance of each component of accumulated other comprehensive loss, net of tax, for the three and six months ended June 30, (in thousands):

	Foreign Currency Translation Adjustment		Minimum  pension and post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated  Other Comprehensive (Loss) Income
Balance at December 31, 2019	$	(4,173)	$	(1,939)	$	(6,112)	$	(721)	$	(5,391)
Minimum pension and post retirement health care plan adjustments	—		25		25		7		18
Foreign currency translation adjustment	(5,898)		—		(5,898)		—		(5,898)
Balance at March 31, 2020	$	(10,071)	$	(1,914)	$	(11,985)	$	(714)	$	(11,271)
Minimum pension and post retirement health care plan adjustments	—		24		24		6		18
Foreign currency translation adjustment	2,815		—		2,815		—		2,815
Balance at June 30, 2020	$	(7,256)	$	(1,890)	$	(9,146)	$	(708)	$	(8,438)

	Foreign Currency Translation Adjustment		Minimum  pension and post retirement benefit plan adjustments		Total Pre-Tax Amount		Tax (Benefit) Expense		Accumulated  Other Comprehensive (Loss) Income
Balance at December 31, 2018	$	(5,939)	$	(2,040)	$	(7,979)	$	(745)	$	(7,234)
Minimum pension and post retirement health care plan adjustments	—		16		16		4		12
Foreign currency translation adjustment	842		—		842		—		842
Balance at March 31, 2019	$	(5,097)	$	(2,024)	$	(7,121)	$	(741)	$	(6,380)
Minimum pension and post retirement health care plan adjustments	—		17		17		5		12
Foreign currency translation adjustment	998		—		998		—		998
Balance at June 30, 2019	$	(4,099)	$	(2,007)	$	(6,106)	$	(736)	$	(5,370)

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Equity-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Schedule Of Number Of Awards And Weighted Average Grant Date Fair Value

The following table sets forth the number of equity-based awards granted during the six months ended June 30, which will convert to shares upon vesting, along with the weighted average grant date fair values:

	2020			2019
Awards	Number of Awards (1)	Weighted Average Grant Date Fair Value		Number of Awards (2)	Weighted Average Grant Date Fair Value
Performance stock units	127,397	$	53.16	145,420	$	40.55
Restricted stock units	43,842	$	52.12	117,821	$	39.37
Deferred stock units	12,402	$	45.98	7,509	$	37.95
Common shares	4,134	$	45.98	7,509	$	37.95

(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 performance stock units 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 revenue, gross profit and operating profit thresholds over a two or 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.(2) Performance stock units granted in 2019 have converted to 168,688 shares to be issued to recipients in the first quarter of 2022, representing 116% of the targeted 2019 award, based on the Company’s actual ROIC compared to ROIC target for the performance period ended December 31, 2019.

Management Stock Purchase Plan

The following table provides the number of restricted stock units credited to active participant accounts and the payments made with respect to restricted stock units issued under the MSPP during the six months ended June 30,:

	2020		2019
Restricted stock units credited	52,965		55,513
Share-based liabilities paid (in thousands)	$	4,433	$	5,742

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Exit Activity Costs and Asset Impairments (Tables)

6 Months Ended

Jun. 30, 2020

Restructuring and Related Activities [Abstract]

Summary Of Exit Activity Costs And Asset Impairments

The following tables set forth the asset impairment charges and exit activity costs incurred by segment during the three and six months ended June 30, related to the restructuring activities described above (in thousands):

	Three months ended June 30,
	2020						2019
	Inventory write-downs &/or asset impairment charges		Exit activity costs		Total		Inventory write-downs &/or asset impairment charges		Exit activity (recoveries) costs, net		Total
Renewable Energy and Conservation	$	72	$	316	$	388	$	—	$	(95)	$	(95)
Residential Products	—		263		263		—		219		219
Industrial and Infrastructure Products	274		40		314		—		1,346		1,346
Corporate	—		45		45		—		666		666
Total exit activity costs & asset impairments	$	346	$	664	$	1,010	$	—	$	2,136	$	2,136

	Six months ended June 30,
	2020						2019
	Inventory write-downs &/or asset impairment charges		Exit activity costs		Total		Inventory write-downs &/or asset impairment charges		Exit activity (recoveries) costs, net		Total
Renewable Energy and Conservation	$	72	$	334	$	406	$	—	$	(1)	$	(1)
Residential Products	—		484		484		—		370		370
Industrial and Infrastructure Products	274		38		312		—		1,313		1,313
Corporate	—		99		99		—		673		673
Total exit activity costs & asset impairments	$	346	$	955	$	1,301	$	—	$	2,355	$	2,355

The following table provides a summary of where the asset impairments and exit activity costs were recorded in the consolidated statements of income for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Cost of sales	$	786	$	319	$	873	$	285
Selling, general, and administrative expense	224		1,817		428		2,070
Total asset impairment and exit activity charges	$	1,010	$	2,136	$	1,301	$	2,355

Reconciliation Of Liability For Exit Activity Costs Relating To Facility Consolidation Efforts

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

	2020		2019
Balance at January 1	$	5,449	$	1,923
Exit activity costs recognized	955		2,355
Cash payments	(5,575)		(1,329)
Balance at June 30	$	829	$	2,949

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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

Summary Of Provision For Income Taxes For Continuing Operations

The following table summarizes the provision for income taxes for continuing operations (in thousands) for the three and six months ended June 30, and the applicable effective tax rates:

	Three Months Ended    June 30,						Six Months Ended    June 30,
	2020			2019			2020			2019
Provision for income taxes	$	8,872		$	6,487		$	11,858		$	8,058
Effective tax rate	24.5		%	24.6		%	23.2		%	23.5		%

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Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule Of Computation Of Basic And Diluted Loss Per Share

Basic earnings and diluted weighted-average shares outstanding are as follows for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Numerator:
Net income available to common shareholders	$	27,292	$	19,913	$	39,351	$	26,258
Denominator for basic earnings per share:
Weighted average shares outstanding	32,605		32,321		32,596		32,300
Denominator for diluted earnings per share:
Weighted average shares outstanding	32,605		32,321		32,596		32,300
Common stock options and stock units	255		321		272		330
Weighted average shares and conversions	32,860		32,642		32,868		32,630

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

Reconciliation Of Sales To Earnings Before Income Taxes by Segment

The following table illustrates certain measurements used by management to assess performance of the segments described above for the three and six months ended June 30, (in thousands):

	Three Months Ended    June 30,				Six Months Ended    June 30,
	2020		2019		2020		2019
Net sales:
Renewable Energy and Conservation	$	98,259	$	76,004	$	194,756	$	144,841
Residential Products	139,472		130,433		242,891		234,142
Industrial and Infrastructure Products	48,263		56,547		98,064		111,735
Less: Intersegment sales	(180)		(329)		(458)		(646)
Net Industrial and Infrastructure Products	48,083		56,218		97,606		111,089
Total consolidated net sales	$	285,814	$	262,655	$	535,253	$	490,072
Income from operations:
Renewable Energy and Conservation	$	9,188	$	9,649	$	14,887	$	11,281
Residential Products	27,964		20,778		41,689		32,868
Industrial and Infrastructure Products	6,644		4,069		10,633		8,198
Unallocated Corporate Expenses	(9,205)		(7,890)		(17,428)		(15,175)
Total consolidated income from operations	$	34,591	$	26,606	$	49,781	$	37,172

Disaggregation of Revenue

The following tables illustrate revenue disaggregated by timing of transfer of control to the customer for the three and six months ended June 30 (in thousands):

	Three Months Ended June 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	12,416	$	138,288	$	37,179	$	187,883
Over Time	85,843		1,184		10,904		97,931
Total net sales	$	98,259	$	139,472	$	48,083	$	285,814

	Three Months Ended June 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	8,469	$	129,566	$	46,315	$	184,350
Over Time	67,535		867		9,903		78,305
Total net sales	$	76,004	$	130,433	$	56,218	$	262,655

	Six Months Ended June 30, 2020
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	27,004	$	240,619	$	76,674	$	344,297
Over Time	167,752		2,272		20,932		190,956
Total net sales	$	194,756	$	242,891	$	97,606	$	535,253

	Six Months Ended June 30, 2019
	Renewable Energy and Conservation		Residential Products		Industrial and Infrastructure Products		Total
Net sales:
Point in Time	$	15,759	$	232,458	$	91,602	$	339,819
Over Time	129,082		1,684		19,487		150,253
Total net sales	$	144,841	$	234,142	$	111,089	$	490,072

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Recent Accounting Pronouncements - Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
	Jan. 01, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings		$ 444,728,000		$ 444,728,000		$ 405,668,000
Income tax benefit		$ (8,872,000)	$ (6,487,000)	$ (11,858,000)	$ (8,058,000)
Accounting Standards Update [Extensible List]				us-gaap:AccountingStandardsUpdate201613Member
Cumulative Effect, Period of Adoption, Adjustment
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Income tax benefit	$ 96,000
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings	$ (291,000)

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Accounts Receivable and Allowance for Doubtful Accounts - Schedule of Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Receivables [Abstract]
Trade accounts receivable	$ 175,251	$ 133,238
Costs in excess of billings	24,628	20,607
Total accounts receivables	199,879	153,845
Less allowance for doubtful accounts and contract assets	(6,270)	(6,330)
Accounts receivable	$ 193,609	$ 147,515

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Accounts Receivable and Allowance for Doubtful Accounts - Schedule of Accounts Receivable Allowance for Credit Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jan. 01, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance as of January 1, 2020	$ 6,330
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings	6,330
Bad debt expense	687
Write-off charged against the allowance and other adjustments	(1,134)
Ending balance as of June 30, 2020	$ 6,270
Cumulative Effect, Period of Adoption, Adjustment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings		$ 387

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Revenue - Narrative (Details)	Jun. 30, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01 | Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Remaining performance obligation expected timing of satisfaction	1 year

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Revenue - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Capitalized Contract Cost [Line Items]
Costs in excess of billings	$ 24,627		$ 20,607
Amounts included in billings in excess of cost at the beginning of the period	42,115	$ 11,357
Amounts included in unearned revenue at the beginning of the period	12,553	$ 6,153
Billings in excess of cost
Capitalized Contract Cost [Line Items]
Contract with customer liability	(29,281)		(47,598)
Unearned revenue
Capitalized Contract Cost [Line Items]
Contract with customer liability	$ (16,503)		$ (17,311)

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Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw material	$ 43,234	$ 45,700
Work-in-process	6,206	5,988
Finished goods	29,618	26,788
Total inventories	$ 79,058	$ 78,476

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Acquisitions (Narrative) (Details) - USD ($) $ in Thousands				3 Months Ended		6 Months Ended
	Feb. 13, 2020	Jan. 15, 2020	Aug. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill				$ 378,740		$ 378,740		$ 329,705
Total acquisition-related costs				1,222	$ 4	2,482	$ 4
Delta Separations
Business Acquisition [Line Items]
Aggregate consideration for acquisition	$ 47,100
Goodwill	$ 32,906
Thermo Energy Systems
Business Acquisition [Line Items]
Aggregate consideration for acquisition		$ 7,300
Goodwill		$ 16,062
Apeks
Business Acquisition [Line Items]
Aggregate consideration for acquisition			$ 12,600
Goodwill			$ 6,436
Selling, general and administrative costs
Business Acquisition [Line Items]
Total acquisition-related costs				$ 588	$ 4	$ 1,848	$ 4

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Acquisitions (Allocation of Purchase Consideration to the Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Feb. 13, 2020	Jan. 15, 2020	Dec. 31, 2019	Aug. 30, 2019
Business Acquisition [Line Items]
Goodwill	$ 378,740			$ 329,705
Delta Separations
Business Acquisition [Line Items]
Working capital		$ 4,063
Property, plant and equipment		219
Acquired intangible assets		13,000
Other assets		951
Other liabilities		(4,027)
Goodwill		32,906
Fair value of purchase consideration		$ 47,112
Thermo Energy Systems
Business Acquisition [Line Items]
Cash			$ 135
Working capital			(19,718)
Property, plant and equipment			1,069
Acquired intangible assets			9,750
Other current assets			35
Other assets			1,335
Other liabilities			(1,335)
Goodwill			16,062
Fair value of purchase consideration			$ 7,333
Apeks
Business Acquisition [Line Items]
Cash					$ 4,154
Working capital					(1,515)
Property, plant and equipment					1,059
Acquired intangible assets					3,000
Other assets					508
Other liabilities					(1,081)
Goodwill					6,436
Fair value of purchase consideration					$ 12,561

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Acquisitions (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	Feb. 13, 2020	Jan. 15, 2020	Aug. 30, 2019
Delta Separations
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired	$ 13,000
Delta Separations | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired	6,000
Delta Separations | Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired	$ 3,200
Estimated Useful Life	10 years
Delta Separations | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired	$ 3,200
Estimated Useful Life	11 years
Delta Separations | Non-compete agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired	$ 300
Estimated Useful Life	5 years
Delta Separations | Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired	$ 300
Estimated Useful Life	3 months
Thermo Energy Systems
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired		$ 9,750
Thermo Energy Systems | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired		$ 660
Estimated Useful Life		3 years
Thermo Energy Systems | Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired		$ 2,639
Estimated Useful Life		15 years
Thermo Energy Systems | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired		$ 6,451
Estimated Useful Life		10 years
Apeks
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired			$ 3,000
Apeks | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired			1,400
Apeks | Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired			$ 900
Estimated Useful Life			7 years
Apeks | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value, finite-lived intangible assets acquired			$ 700
Estimated Useful Life			6 years

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Acquisitions - Acquisition Related Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Total acquisition-related costs	$ 1,222	$ 4	$ 2,482	$ 4
Selling, general and administrative costs
Business Acquisition [Line Items]
Total acquisition-related costs	588	4	1,848	4
Cost of sales
Business Acquisition [Line Items]
Total acquisition-related costs	$ 634	$ 0	$ 634	$ 0

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Goodwill and Related Intangible Assets (Schedule of Changes in Carrying Amount of Goodwill) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2019	$ 329,705
Acquired goodwill	49,001
Adjustments to prior year acquisitions	579
Foreign currency translation	(545)
Balance at June 30, 2020	378,740
Renewable Energy and Conservation
Goodwill [Roll Forward]
Balance at December 31, 2019	77,602
Acquired goodwill	49,001
Adjustments to prior year acquisitions	579
Foreign currency translation	(281)
Balance at June 30, 2020	126,901
Residential Products
Goodwill [Roll Forward]
Balance at December 31, 2019	198,075
Acquired goodwill	0
Adjustments to prior year acquisitions	0
Foreign currency translation	0
Balance at June 30, 2020	198,075
Industrial and Infrastructure Products
Goodwill [Roll Forward]
Balance at December 31, 2019	54,028
Acquired goodwill	0
Adjustments to prior year acquisitions	0
Foreign currency translation	(264)
Balance at June 30, 2020	$ 53,764

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Goodwill and Related Intangible Assets (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	$ 125,361	$ 108,527
Total acquired intangible assets, Gross Carrying Amount	176,656	154,297
Accumulated Amortization, Finite-lived intangible assets	66,175	61,705
Total acquired intangible assets, Accumulated Amortization	66,175	61,705
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	6,753	6,139
Accumulated Amortization, Finite-lived intangible assets	4,328	4,105
Unpatented technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	35,383	29,544
Accumulated Amortization, Finite-lived intangible assets	17,031	15,807
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	80,976	71,195
Accumulated Amortization, Finite-lived intangible assets	42,876	40,294
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	1,949	1,649
Accumulated Amortization, Finite-lived intangible assets	1,640	1,499
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	300	0
Accumulated Amortization, Finite-lived intangible assets	300	0
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Indefinite-lived intangible assets	51,295	45,770
Accumulated Amortization, Indefinite-lived intangible assets	$ 0	$ 0

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Goodwill and Related Intangible Assets (Schedule of Amortization Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 2,412	$ 1,797	$ 4,490	$ 3,594
2020	3,860		3,860
2021	7,633		7,633
2022	7,154		7,154
2023	6,617		6,617
2024	6,363		6,363
2025	$ 6,203		$ 6,203

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Long-Term Debt (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020 USD ($) covenant	Dec. 31, 2019 USD ($)	Jan. 24, 2019 USD ($)
Debt Instrument [Line Items]
Carrying value of outstanding debt	$ 0	$ 0
Revolving Credit Facility | Senior Credit Agreement
Debt Instrument [Line Items]
Revolving credit facility, availability amount	394,100,000
Borrowings outstanding	0	$ 0
Standby Letters of Credit | Senior Credit Agreement
Debt Instrument [Line Items]
Letters of credit issued	$ 5,900,000
Line of Credit | 2019 Senior Credit Agreement
Debt Instrument [Line Items]
Current borrowing capacity			$ 400,000,000
Letters of credit issued			700,000,000
Number of debt covenants | covenant	3
Medium-term Notes | 2019 Senior Credit Agreement
Debt Instrument [Line Items]
Debt instrument, issued value			$ 300,000,000

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Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI before tax, beginning balance	$ (11,985)	$ (6,112)	$ (7,121)	$ (7,979)	$ (6,112)	$ (7,979)
Accumulated other comprehensive income, tax, beginning balance	(714)	(721)	(741)	(745)	(721)	(745)
Accumulated Other Comprehensive Income Beginning Balance	(11,271)	(5,391)	(6,380)	(7,234)	(5,391)	(7,234)
Other comprehensive income (loss), net of tax	2,833		1,010		(3,047)	1,864
AOCI before tax, ending balance	(9,146)	(11,985)	(6,106)	(7,121)	(9,146)	(6,106)
Accumulated other comprehensive income, tax, ending balance	(708)	(714)	(736)	(741)	(708)	(736)
Accumulated Other Comprehensive Income Ending Balance	(8,438)	(11,271)	(5,370)	(6,380)	(8,438)	(5,370)
Accumulated Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI before tax, beginning balance	(10,071)	(4,173)	(5,097)	(5,939)	(4,173)	(5,939)
Other comprehensive income adjustments	2,815	(5,898)	998	842
Other comprehensive income (loss), net of tax	2,815	(5,898)	998	842
AOCI before tax, ending balance	(7,256)	(10,071)	(4,099)	(5,097)	(7,256)	(4,099)
Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive income adjustments	24	25	17	16
Other comprehensive income (loss), tax	6	7	5	4
Other comprehensive income (loss), net of tax	18	18	12	12
Minimum  pension and post retirement benefit plan adjustments | Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI before tax, beginning balance	(1,914)	(1,939)	(2,024)	(2,040)	(1,939)	(2,040)
Other comprehensive income adjustments	24	25	17	16
AOCI before tax, ending balance	$ (1,890)	$ (1,914)	$ (2,007)	$ (2,024)	$ (1,890)	$ (2,007)

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Equity-Based Compensation - Incentive Plan (Details)	May 04, 2018 shares
2018 Plan | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	1,000,000

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Equity-Based Compensation (Schedule of Number of Awards and Weighted Average Grant Date Fair Value) (Details) - $ / shares	3 Months Ended	6 Months Ended
	Mar. 31, 2022	Jun. 30, 2020	Jun. 30, 2019
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards (in shares)		127,397	145,420
Weighted average grant date fair value (in USD per share)		$ 53.16	$ 40.55
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards (in shares)		43,842	117,821
Weighted average grant date fair value (in USD per share)		$ 52.12	$ 39.37
Deferred stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards (in shares)		12,402	7,509
Weighted average grant date fair value (in USD per share)		$ 45.98	$ 37.95
Common shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards (in shares)		4,134	7,509
Weighted average grant date fair value (in USD per share)		$ 45.98	$ 37.95
2018 Plan | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares to be issued on conversion as percentage of total award		116.00%
2018 Plan | Scenario, Forecast | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares to be issued on conversion (in shares)	168,688
Minimum | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants based on targeted thresholds, percent		0.00%
Maximum | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants based on targeted thresholds, percent		200.00%
Return on Invested Capital | 2018 Plan | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period		1 year
Gross Profit Threshold | Minimum | 2018 Plan | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period		2 years
Gross Profit Threshold | Maximum | 2018 Plan | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period		3 years
Total Shareholder Return | 2018 Plan | Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period		3 years

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Equity-Based Compensation (Equity Based Awards - Settled in Cash) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrued equity based compensation	$ 29,200,000		$ 28,000,000.0
Non Current Liabilities
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrued equity based compensation	12,700,000		$ 13,200,000
Management Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based liabilities paid (in thousands)	$ 4,433,000	$ 5,742,000
Management Stock Purchase Plan | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average company stock price measurement period	200 days
Restricted stock units credited (in shares)	$ 52,965	$ 55,513

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Exit Activity Costs and Asset Impairments (Narrative) (Details) $ in Thousands		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($) facility	Jun. 30, 2019 USD ($) facility
Restructuring and Related Activities [Abstract]
Number of facilities closed | facility		1	0
Restructuring Cost and Reserve [Line Items]
Gain on sale of business		$ 1,881	$ 0
Apartment Tour Application Business
Restructuring Cost and Reserve [Line Items]
Proceeds from sale of business	$ 2,000
Gain on sale of business	$ 1,900

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Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	$ 346	$ 0	$ 346	$ 0
Exit activity costs	664	2,136	955	2,355
Total	1,010	2,136	1,301	2,355
Renewable Energy and Conservation
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	72	0	72	0
Exit activity costs	316	(95)	334	(1)
Total	388	(95)	406	(1)
Residential Products
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	0	0	0	0
Exit activity costs	263	219	484	370
Total	263	219	484	370
Industrial and Infrastructure Products
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	274	0	274	0
Exit activity costs	40	1,346	38	1,313
Total	314	1,346	312	1,313
Corporate
Restructuring Cost and Reserve [Line Items]
Inventory write-downs &/or asset impairment charges	0	0	0	0
Exit activity costs	45	666	99	673
Total	$ 45	$ 666	$ 99	$ 673

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Exit Activity Costs and Asset Impairments (Summary of Exit Activity Costs and Asset Impairments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Total	$ 1,010	$ 2,136	$ 1,301	$ 2,355
Exit activity costs	664	2,136	955	2,355
Cost of sales
Restructuring Cost and Reserve [Line Items]
Total	786	319	873	285
Selling, general, and administrative expense
Restructuring Cost and Reserve [Line Items]
Total	$ 224	$ 1,817	$ 428	$ 2,070

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Exit Activity Costs and Asset Impairments (Reconciles of Liability for Exit Activity Costs Relating to Facility Consolidation Efforts) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Reserve [Roll Forward]
Beginning balance			$ 5,449	$ 1,923
Exit activity costs	$ 664	$ 2,136	955	2,355
Cash payments			(5,575)	(1,329)
Ending balance	$ 829	$ 2,949	$ 829	$ 2,949

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Income Taxes (Provision For Income Taxes For Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 8,872	$ 6,487	$ 11,858	$ 8,058
Effective tax rate	24.50%	24.60%	23.20%	23.50%

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Earnings per Share (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 27,292	$ 12,059	$ 19,913	$ 6,345	$ 39,351	$ 26,258
Weighted average basic shares outstanding (in shares)	32,605,000		32,321,000		32,596,000	32,300,000
Common stock options and restricted stock (in shares)	255,000		321,000		272,000	330,000
Weighted average shares outstanding, diluted (in shares)	32,860,000		32,642,000		32,868,000	32,630,000
Common shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share calculation (in shares)	77,000		366,000		47,000	312,000

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Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) segment	Jun. 30, 2019 USD ($)
Segment Reporting, Other Significant Reconciling Item [Line Items]
Number of reportable segments | segment			3
Net Sales	$ 285,814	$ 262,655	$ 535,253	$ 490,072
Total consolidated income from operations	34,591	26,606	49,781	37,172
Renewable Energy and Conservation
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	98,259	76,004	194,756	144,841
Residential Products
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	139,472	130,433	242,891	234,142
Industrial and Infrastructure Products
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	48,083	56,218	97,606	111,089
Operating Segments | Renewable Energy and Conservation
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	98,259	76,004	194,756	144,841
Total consolidated income from operations	9,188	9,649	14,887	11,281
Operating Segments | Residential Products
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	139,472	130,433	242,891	234,142
Total consolidated income from operations	27,964	20,778	41,689	32,868
Operating Segments | Industrial and Infrastructure Products
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	48,263	56,547	98,064	111,735
Total consolidated income from operations	6,644	4,069	10,633	8,198
Intersegment Elimination
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net Sales	(180)	(329)	(458)	(646)
Corporate
Segment Reporting, Other Significant Reconciling Item [Line Items]
Unallocated Corporate Expenses	$ (9,205)	$ (7,890)	$ (17,428)	$ (15,175)

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Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net Sales	$ 285,814	$ 262,655	$ 535,253	$ 490,072
Renewable Energy and Conservation
Disaggregation of Revenue [Line Items]
Net Sales	98,259	76,004	194,756	144,841
Residential Products
Disaggregation of Revenue [Line Items]
Net Sales	139,472	130,433	242,891	234,142
Industrial and Infrastructure Products
Disaggregation of Revenue [Line Items]
Net Sales	48,083	56,218	97,606	111,089
Point in Time
Disaggregation of Revenue [Line Items]
Net Sales	187,883	184,350	344,297	339,819
Point in Time | Renewable Energy and Conservation
Disaggregation of Revenue [Line Items]
Net Sales	12,416	8,469	27,004	15,759
Point in Time | Residential Products
Disaggregation of Revenue [Line Items]
Net Sales	138,288	129,566	240,619	232,458
Point in Time | Industrial and Infrastructure Products
Disaggregation of Revenue [Line Items]
Net Sales	37,179	46,315	76,674	91,602
Over Time
Disaggregation of Revenue [Line Items]
Net Sales	97,931	78,305	190,956	150,253
Over Time | Renewable Energy and Conservation
Disaggregation of Revenue [Line Items]
Net Sales	85,843	67,535	167,752	129,082
Over Time | Residential Products
Disaggregation of Revenue [Line Items]
Net Sales	1,184	867	2,272	1,684
Over Time | Industrial and Infrastructure Products
Disaggregation of Revenue [Line Items]
Net Sales	$ 10,904	$ 9,903	$ 20,932	$ 19,487