$ROCK
GIBRALTAR INDUSTRIES, INC. Stock $rock

$rock Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000091256221000007 Filed on February 25, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue	$265.2M	$226.0M	$260.8M
YoY Change	17.33%	-6.18%	-6.89%
Cost Of Revenue	$125.5M	$73.00M	$222.7M
YoY Change	71.92%	35.19%	6.13%
Gross Profit	$62.43M	$57.43M	$68.74M
YoY Change	8.71%	7.82%	-2.18%
Gross Profit Margin	23.54%	25.41%	26.36%
Selling, General & Admin	$26.50M	$23.20M	$45.16M
YoY Change	14.22%	77.1%	10.48%
% of Gross Profit	42.45%	40.4%	65.69%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.600M	$5.000M	$5.000M
YoY Change	-28.0%	0.0%	-1.96%
% of Gross Profit	5.77%	8.71%	7.27%
Operating Expenses	$26.60M	$23.20M	$45.16M
YoY Change	14.66%	77.1%	10.48%
Operating Profit	$22.72M	$20.23M	$28.31M
YoY Change	12.3%	9.68%	-3.71%
Interest Expense	-$300.0K	$0.00	$17.00K
YoY Change		-100.0%	-99.42%
% of Operating Profit	-1.32%	0.0%	0.06%
Other Income/Expense, Net	-$300.0K	$300.0K	-$84.00K
YoY Change	-200.0%	-108.82%	-83.91%
Pretax Income	$13.00M	$12.40M	$31.32M
YoY Change	4.84%	1277.78%	20.57%
Income Tax	$2.800M	$3.300M	$6.843M
% Of Pretax Income	21.54%	26.61%	21.85%
Net Earnings	-$8.545M	$14.36M	$24.48M
YoY Change	-159.52%	9.45%	25.5%
Net Earnings / Revenue	-3.22%	6.35%	9.39%
Basic Earnings Per Share
Diluted Earnings Per Share	-$259.1K	$437.7K	$747.0K
COMMON SHARES
Basic Shares Outstanding	32.52M shares	32.27M shares	32.47M shares
Diluted Shares Outstanding			32.77M shares

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$32.10M	$191.4M	$137.6M
YoY Change	-83.23%	-35.56%	-43.93%
Cash & Equivalents	$32.05M	$191.4M	$137.6M
Short-Term Investments
Other Short-Term Assets	$19.67M	$18.96M	$17.53M
YoY Change	3.76%	127.03%	95.85%
Inventory	$98.31M	$61.96M	$83.05M
Prepaid Expenses
Receivables	$198.0M	$133.9M	$196.3M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$425.5M	$437.1M	$434.5M
YoY Change	-2.66%	-19.73%	-18.43%
LONG-TERM ASSETS
Property, Plant & Equipment	$89.56M	$78.15M	$95.08M
YoY Change	14.6%	-18.45%	1.45%
Goodwill	$514.3M	$307.4M	$328.0M
YoY Change	67.32%	1.91%	1.44%
Intangibles	$156.4M	$76.73M	$96.19M
YoY Change	103.78%	-20.38%	-3.38%
Long-Term Investments
YoY Change
Other Assets	$1.599M	$1.980M	$2.475M
YoY Change	-19.24%	62.83%	-44.75%
Total Long-Term Assets	$787.0M	$547.3M	$550.3M
YoY Change	43.79%	5.85%	5.61%
TOTAL ASSETS
Total Short-Term Assets	$425.5M	$437.1M	$434.5M
Total Long-Term Assets	$787.0M	$547.3M	$550.3M
Total Assets	$1.212B	$984.5M	$984.8M
YoY Change	23.16%	-7.27%	-6.54%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$134.7M	$72.63M	$103.6M
YoY Change	85.52%	-8.22%	11.43%
Accrued Expenses	$83.51M	$86.60M	$97.88M
YoY Change	-3.57%	-0.55%	28.34%
Deferred Revenue	$34.70M	$47.60M	$38.67M
YoY Change	-27.09%	166.55%	76.58%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Total Short-Term Liabilities	$302.2M	$229.2M	$240.2M
YoY Change	31.87%	-41.66%	25.38%
LONG-TERM LIABILITIES
Long-Term Debt	$85.64M	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Other Long-Term Liabilities	$24.03M	$21.27M	$30.29M
YoY Change	12.95%	-37.34%	-19.08%
Total Long-Term Liabilities	$109.7M	$21.27M	$30.29M
YoY Change	415.52%	-40.16%	-87.75%
TOTAL LIABILITIES
Total Short-Term Liabilities	$302.2M	$229.2M	$240.2M
Total Long-Term Liabilities	$109.7M	$21.27M	$30.29M
Total Liabilities	$411.9M	$250.5M	$270.5M
YoY Change	64.45%	-41.54%	-38.36%
SHAREHOLDERS EQUITY
Retained Earnings	$469.9M	$405.7M	$391.3M
YoY Change	15.84%	19.67%	20.08%
Common Stock	$336.0K	$332.0K	$332.0K
YoY Change	1.2%	0.91%	1.22%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$28.88M	$22.23M	$21.42M
YoY Change	29.95%	24.02%	23.75%
Treasury Stock Shares	1.028M shares	906.0K shares	888.0K shares
Shareholders Equity	$743.8M	$674.0M	$657.2M
YoY Change
Total Liabilities & Shareholders Equity	$1.212B	$984.5M	$984.8M
YoY Change	23.16%	-7.27%	-6.54%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	-$8.545M	$14.36M	$24.48M
YoY Change	-159.52%	9.45%	25.5%
Depreciation, Depletion And Amortization	$3.600M	$5.000M	$5.000M
YoY Change	-28.0%	0.0%	-1.96%
Cash From Operating Activities	$32.90M	$57.40M	$66.00M
YoY Change	-42.68%	-3.2%	57.14%
INVESTING ACTIVITIES
Capital Expenditures	-$3.800M	-$3.500M	-$1.400M
YoY Change	8.57%	-38.6%	-54.84%
Acquisitions
YoY Change
Other Investing Activities	-$261.8M	$100.0K	-$8.400M
YoY Change	-261900.0%		68.0%
Cash From Investing Activities	-$265.5M	-$3.400M	-$9.800M
YoY Change	7708.82%	-39.29%	20.99%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	85.50M	-800.0K	-100.0K
YoY Change	-10787.5%	33.33%	-133.33%
NET CHANGE
Cash From Operating Activities	32.90M	57.40M	66.00M
Cash From Investing Activities	-265.5M	-3.400M	-9.800M
Cash From Financing Activities	85.50M	-800.0K	-100.0K
Net Change In Cash	-147.1M	53.20M	56.10M
YoY Change	-376.5%	0.19%	64.04%
FREE CASH FLOW
Cash From Operating Activities	$32.90M	$57.40M	$66.00M
Capital Expenditures	-$3.800M	-$3.500M	-$1.400M
Free Cash Flow	$36.70M	$60.90M	$67.40M
YoY Change	-39.74%	-6.31%	49.45%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000912562
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201602Member
CY2020	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccruedLiabilitiesCurrent
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccruedLiabilitiesCurrent
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	0-22462
CY2020	dei	Entity Registrant Name EntityRegistrantName	GIBRALTAR INDUSTRIES, INC.
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	16-1445150
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	3556 Lake Shore Road
CY2020	dei	Entity Address Address Line2 EntityAddressAddressLine2	P.O. Box 2028
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Buffalo ,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	14219-0228
CY2020	dei	City Area Code CityAreaCode	716
CY2020	dei	Local Phone Number LocalPhoneNumber	826-6500
CY2020	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2020	dei	Trading Symbol TradingSymbol	ROCK
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020Q2	dei	Entity Public Float EntityPublicFloat	1500000000	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	32570961	shares
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CY2019	us-gaap	Revenues Revenues	898233000	USD
CY2018	us-gaap	Revenues Revenues	837097000	USD
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CY2019	us-gaap	Gross Profit GrossProfit	219897000	USD
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CY2019	us-gaap	Other Income OtherIncome	-408000	USD
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CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-16602000	USD
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CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	6682000	USD
CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	12822000	USD
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	2123000	USD
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CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	35404000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	17730000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	14943000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	24026000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	21272000	USD
CY2020Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	0	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	9670000	USD
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	33568000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	33192000	shares
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	336000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	332000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	304870000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	295582000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	469943000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	405668000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2461000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5391000	USD
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1028000	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	906000	shares
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	28883000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	22227000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	743805000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	673964000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1212494000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	984450000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64566000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	65091000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	63809000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-18725000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	5163000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	9697000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	83291000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	59928000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17439000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	54112000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	20915000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17557000	USD
CY2020	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	1552000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	1881000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	8173000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	12570000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	9189000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	493000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	408000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1344000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3786000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-5491000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4120000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4725000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1944000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5399000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1759000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2277000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	11256000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-9665000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5719000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-14272000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	12322000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5467000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9306000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-38000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1160000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	4804000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	8595000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	5241000	USD
CY2020	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-44570000	USD
CY2019	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	14040000	USD
CY2018	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	2351000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	73016000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	112536000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	84361000	USD
CY2020	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	16088000	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	17399000	USD
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	13184000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	89104000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	129935000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	97545000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13068000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8776000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10368000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	313686000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	77000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	92000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	348000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-19673000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-14549000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	2000000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-324677000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-17279000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-15261000	USD
CY2020	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-2033000	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-2394000	USD
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	712000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-326710000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	212000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	400000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	85000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1235000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6656000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4305000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7165000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1119000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	490000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1385000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	79463000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-217050000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-6180000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1166000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1145000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-2090000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-159309000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-105643000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	74726000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	191363000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	297006000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	222280000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	32054000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	191363000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	297006000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	531719000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	63809000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3241000	USD
CY2018	rock	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax1 OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax1	-225000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-723000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9189000	USD
CY2018	rock	Stock Issued During Period Value Restricted Stock Award Settlement StockIssuedDuringPeriodValueRestrictedStockAwardSettlement	7165000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1385000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	596693000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	65091000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	1766000	USD
CY2019	rock	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax1 OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax1	-24000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-77000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12570000	USD
CY2019	rock	Stock Issued During Period Value Restricted Stock Award Settlement StockIssuedDuringPeriodValueRestrictedStockAwardSettlement	4305000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	490000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	673964000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64566000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64566000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3301000	USD
CY2020	rock	Other Comprehensive Income Minimum Pension Liability Net Adjustment Tax1 OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax1	-116000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	371000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8173000	USD
CY2020	rock	Stock Issued During Period Value Restricted Stock Award Settlement StockIssuedDuringPeriodValueRestrictedStockAwardSettlement	6656000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1119000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	743805000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Use of estimates</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.</span></div>
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5951000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	6170000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5599000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1321000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2577000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1308000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4128000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2796000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	737000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3529000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5951000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	6170000	USD
CY2020	us-gaap	Depreciation Depreciation	11252000	USD
CY2019	us-gaap	Depreciation Depreciation	10666000	USD
CY2018	us-gaap	Depreciation Depreciation	10249000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	7200000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	5700000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	5000000.0	USD
CY2020Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	174604000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	119239000	USD
CY2020Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	26915000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	20607000	USD
CY2020Q4	rock	Contracts Receivable Gross Current ContractsReceivableGrossCurrent	201519000	USD
CY2019Q4	rock	Contracts Receivable Gross Current ContractsReceivableGrossCurrent	139846000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3529000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5951000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	197990000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	133895000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	26915000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	20607000	USD
CY2018Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	22634000	USD
CY2020	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	45536000	USD
CY2019	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	17371000	USD
CY2018	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	10097000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	12229000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	10090000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	2988000	USD
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	66018000	USD
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	42030000	USD
CY2020Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	5382000	USD
CY2019Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	5023000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	31205000	USD
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	18460000	USD
CY2020Q4	us-gaap	Inventory Gross InventoryGross	102605000	USD
CY2019Q4	us-gaap	Inventory Gross InventoryGross	65513000	USD
CY2020Q4	us-gaap	Inventory Adjustments InventoryAdjustments	4298000	USD
CY2019Q4	us-gaap	Inventory Adjustments InventoryAdjustments	3556000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	98307000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	61957000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	3463000	USD
CY2018Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2971000	USD
CY2017Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2852000	USD
CY2020	rock	Inventory Valuation Excess Obsolete And Slow Moving Inventory InventoryValuationExcessObsoleteAndSlowMovingInventory	355000	USD
CY2019	rock	Inventory Valuation Excess Obsolete And Slow Moving Inventory InventoryValuationExcessObsoleteAndSlowMovingInventory	1134000	USD
CY2018	rock	Inventory Valuation Excess Obsolete And Slow Moving Inventory InventoryValuationExcessObsoleteAndSlowMovingInventory	363000	USD
CY2020	rock	Inventory Valuation Scrapped Inventory And Other Adjustments InventoryValuationScrappedInventoryAndOtherAdjustments	343000	USD
CY2019	rock	Inventory Valuation Scrapped Inventory And Other Adjustments InventoryValuationScrappedInventoryAndOtherAdjustments	-642000	USD
CY2018	rock	Inventory Valuation Scrapped Inventory And Other Adjustments InventoryValuationScrappedInventoryAndOtherAdjustments	-244000	USD
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	4161000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	3463000	USD
CY2018Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2971000	USD
CY2020Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	4605000	USD
CY2019Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	4583000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	41164000	USD
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	39901000	USD
CY2020Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	188853000	USD
CY2019Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	174058000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	10458000	USD
CY2019Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	5131000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	245080000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	223673000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	155518000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	145521000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	89562000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	78152000	USD
CY2020	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	5	business
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3864000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1918000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	497000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	301580000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	5857000	USD
CY2019	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	172000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	90000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	307355000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	205243000	USD
CY2020	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-578000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	1103000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	514279000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	133200000	USD
CY2020Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	133200000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017Q4	rock	Numberof Reporting Units Testedfor Impairment NumberofReportingUnitsTestedforImpairment	10	reporting_unit
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	155183000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	55388000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	89567000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	45403000	USD
CY2020Q4	rock	Acquired Intangible Assets Total AcquiredIntangibleAssetsTotal	211753000	USD
CY2020Q4	rock	Total Acquired Intangible Assets Accumulated Amortization TotalAcquiredIntangibleAssetsAccumulatedAmortization	55388000	USD
CY2019Q4	rock	Acquired Intangible Assets Total AcquiredIntangibleAssetsTotal	122137000	USD
CY2019Q4	rock	Total Acquired Intangible Assets Accumulated Amortization TotalAcquiredIntangibleAssetsAccumulatedAmortization	45403000	USD
CY2018	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	300000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9663000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6891000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7190000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	18362000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	11584000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	10721000	USD
CY2019Q4	rock	Accrued Sharebased Compensation Current AccruedSharebasedCompensationCurrent	14817000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	10611000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	10382000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	18131000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	13509000	USD
CY2020Q4	rock	Accrued Sharebased Compensation Current AccruedSharebasedCompensationCurrent	3504000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1850000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	3569000	USD
CY2020Q4	rock	Accrued Customer Rebates Current AccruedCustomerRebatesCurrent	11575000	USD
CY2019Q4	rock	Accrued Customer Rebates Current AccruedCustomerRebatesCurrent	10266000	USD
CY2020Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	6915000	USD
CY2019Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	8353000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8034000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6487000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	21325000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	15389000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	12171000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	14207000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	83505000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	86597000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	85600000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	0	USD
CY2020Q4	rock	Debt Instrument Number Of Debt Covenants DebtInstrumentNumberOfDebtCovenants	3	debtCovenant
CY2020Q4	rock	Debt Instrument Number Of Debt Covenants DebtInstrumentNumberOfDebtCovenants	3	debtCovenant
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-703000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2323000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-10709000	USD
CY2020	us-gaap	Interest Income Other InterestIncomeOther	276000	USD
CY2019	us-gaap	Interest Income Other InterestIncomeOther	764000	USD
CY2018	us-gaap	Interest Income Other InterestIncomeOther	2156000	USD
CY2020	rock	Noncash Interest Adjustment NoncashInterestAdjustment	-345000	USD
CY2019	rock	Noncash Interest Adjustment NoncashInterestAdjustment	-380000	USD
CY2018	rock	Noncash Interest Adjustment NoncashInterestAdjustment	-529000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	634000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	2707000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	12336000	USD
CY2020	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	2824000	USD
CY2019	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	2572000	USD
CY2018	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	2542000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.038
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Before Tax1 AccumulatedOtherComprehensiveIncomeLossBeforeTax1	-7979000	USD
CY2018Q4	rock	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-745000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7234000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	24000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	77000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Before Tax1 AccumulatedOtherComprehensiveIncomeLossBeforeTax1	-6112000	USD
CY2019Q4	rock	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-721000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5391000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-116000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-371000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Before Tax1 AccumulatedOtherComprehensiveIncomeLossBeforeTax1	-3298000	USD
CY2020Q4	rock	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-837000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2461000	USD
CY2020	rock	Stock Compensation Expense Recognized Under Terminated Plans StockCompensationExpenseRecognizedUnderTerminatedPlans	40000	USD
CY2019	rock	Stock Compensation Expense Recognized Under Terminated Plans StockCompensationExpenseRecognizedUnderTerminatedPlans	192000	USD
CY2018	rock	Stock Compensation Expense Recognized Under Terminated Plans StockCompensationExpenseRecognizedUnderTerminatedPlans	569000	USD
CY2020	rock	Share Based Goodsand Nonemployee Services Transaction Sharebased Compensation ShareBasedGoodsandNonemployeeServicesTransactionSharebasedCompensation	760000	USD
CY2019	rock	Share Based Goodsand Nonemployee Services Transaction Sharebased Compensation ShareBasedGoodsandNonemployeeServicesTransactionSharebasedCompensation	570000	USD
CY2018	rock	Share Based Goodsand Nonemployee Services Transaction Sharebased Compensation ShareBasedGoodsandNonemployeeServicesTransactionSharebasedCompensation	444000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	8173000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	12570000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	9189000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2272000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3136000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2509000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	41500	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	41500	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	247666	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.01
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	87907	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.75
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	159759	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.70
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	42350	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.57
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	117409	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.91
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	75909	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	14.73
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	41500	shares
CY2020	rock	Restructuringand Related Cost Numberof Facilitiestobe Closed RestructuringandRelatedCostNumberofFacilitiestobeClosed	2	facility
CY2019	rock	Restructuringand Related Cost Numberof Facilitiestobe Closed RestructuringandRelatedCostNumberofFacilitiestobeClosed	1	facility
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	29.38
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y1M17D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1766000	USD
CY2020Q4	rock	Market Price Of Common Stock Per Share MarketPriceOfCommonStockPerShare	71.94
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3812000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1371000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2128000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	14100000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M18D
CY2020Q4	rock	Accrued Equity Based Compensation AccruedEquityBasedCompensation	18200000	USD
CY2019Q4	rock	Accrued Equity Based Compensation AccruedEquityBasedCompensation	28000000.0	USD
CY2020	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	81000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	2207000	USD
CY2020	us-gaap	Business Exit Costs1 BusinessExitCosts1	2288000	USD
CY2019	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	408000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	5166000	USD
CY2019	us-gaap	Business Exit Costs1 BusinessExitCosts1	5574000	USD
CY2018	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	1918000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	2801000	USD
CY2018	us-gaap	Business Exit Costs1 BusinessExitCosts1	4719000	USD
CY2020	us-gaap	Business Exit Costs1 BusinessExitCosts1	2288000	USD
CY2019	us-gaap	Business Exit Costs1 BusinessExitCosts1	5574000	USD
CY2018	us-gaap	Business Exit Costs1 BusinessExitCosts1	4719000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	2083000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	1865000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	2207000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	5166000	USD
CY2020	us-gaap	Payments For Restructuring PaymentsForRestructuring	3260000	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	3799000	USD
CY2020	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	0	USD
CY2019	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	1149000	USD
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	1030000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	2083000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	108930000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	78351000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	70783000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-1171000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	16397000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-270000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3660000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	107759000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	78081000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	67123000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	22629000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.034
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.011
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-2224000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3194000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	14096000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3650000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.041
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2901000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.043
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1064000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.010
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1621000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.021
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	742000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.011
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-1674000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.016
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-871000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.003
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-3051000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.045
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.033
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-260000	USD
CY2020	rock	Effective Income Tax Rate Reconciliation Executive Compensation Amount EffectiveIncomeTaxRateReconciliationExecutiveCompensationAmount	1114000	USD
CY2020	rock	Effective Income Tax Rate Reconciliation Executive Compensation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationPercent	0.010
CY2019	rock	Effective Income Tax Rate Reconciliation Executive Compensation Amount EffectiveIncomeTaxRateReconciliationExecutiveCompensationAmount	1132000	USD
CY2019	rock	Effective Income Tax Rate Reconciliation Executive Compensation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationPercent	0.014
CY2018	rock	Effective Income Tax Rate Reconciliation Executive Compensation Amount EffectiveIncomeTaxRateReconciliationExecutiveCompensationAmount	1369000	USD
CY2018	rock	Effective Income Tax Rate Reconciliation Executive Compensation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationPercent	0.020
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-130000	USD
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CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.001
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14128000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2018	rock	Effective Income Tax Rate Reconciliation Net Operating Loss Write Down Percent EffectiveIncomeTaxRateReconciliationNetOperatingLossWriteDownPercent	0.024
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1694000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.025
CY2020	rock	Effective Income Tax Rate Reconiliation Net Operating Loss Write Down Amount EffectiveIncomeTaxRateReconiliationNetOperatingLossWriteDownAmount	0	USD
CY2020	rock	Effective Income Tax Rate Reconciliation Net Operating Loss Write Down Percent EffectiveIncomeTaxRateReconciliationNetOperatingLossWriteDownPercent	0
CY2019	rock	Effective Income Tax Rate Reconiliation Net Operating Loss Write Down Amount EffectiveIncomeTaxRateReconiliationNetOperatingLossWriteDownAmount	0	USD
CY2019	rock	Effective Income Tax Rate Reconciliation Net Operating Loss Write Down Percent EffectiveIncomeTaxRateReconciliationNetOperatingLossWriteDownPercent	0
CY2018	rock	Effective Income Tax Rate Reconiliation Net Operating Loss Write Down Amount EffectiveIncomeTaxRateReconiliationNetOperatingLossWriteDownAmount	1640000	USD
CY2020	rock	Effective Income Tax Rate Reconciliation Change In Indemnification Asset Amount EffectiveIncomeTaxRateReconciliationChangeInIndemnificationAssetAmount	0	USD
CY2020	rock	Effective Income Tax Rate Reconciliation Change In Indemnification Asset Percent EffectiveIncomeTaxRateReconciliationChangeInIndemnificationAssetPercent	0
CY2019	rock	Effective Income Tax Rate Reconciliation Change In Indemnification Asset Amount EffectiveIncomeTaxRateReconciliationChangeInIndemnificationAssetAmount	0	USD
CY2019	rock	Effective Income Tax Rate Reconciliation Change In Indemnification Asset Percent EffectiveIncomeTaxRateReconciliationChangeInIndemnificationAssetPercent	0
CY2018	rock	Effective Income Tax Rate Reconciliation Change In Indemnification Asset Amount EffectiveIncomeTaxRateReconciliationChangeInIndemnificationAssetAmount	643000	USD
CY2018	rock	Effective Income Tax Rate Reconciliation Change In Indemnification Asset Percent EffectiveIncomeTaxRateReconciliationChangeInIndemnificationAssetPercent	0.010
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-57000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	94000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	73000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24468000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.227
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18153000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.232
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13011000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.194
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7697000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7556000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	41842000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	38610000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	5632000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	6171000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	6878000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	6158000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	62049000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	58495000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	7496000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	9530000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	15682000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	13939000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	23178000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	23469000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	111000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	298000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	23067000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	23171000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	38982000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	35324000	USD
CY2020Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	14700000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1500000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	13000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	21351000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16744000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	200000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	329000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3536000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	15000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	300000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	329000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3060000	USD
CY2020	rock	Unrecognized Tax Benefits Increase Decrease Resulting From Divestitures And Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromDivestituresAndForeignCurrencyTranslation	0	USD
CY2019	rock	Unrecognized Tax Benefits Increase Decrease Resulting From Divestitures And Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromDivestituresAndForeignCurrencyTranslation	0	USD
CY2018	rock	Unrecognized Tax Benefits Increase Decrease Resulting From Divestitures And Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromDivestituresAndForeignCurrencyTranslation	-162000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	329000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	83291000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	59928000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	54112000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-18725000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	5163000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	9697000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64566000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	65091000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	63809000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32664000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32389000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31979000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	254000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	333000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	555000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32918000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32722000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32534000	shares
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	25229000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	21201000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	8034000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6487000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	17730000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	14943000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	25764000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	21430000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	11001000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	10441000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	9502000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	9238000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12745000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6364000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y7M6D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M18D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.052
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.057
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	9139000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7635000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6483000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3298000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1043000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	673000	USD
CY2020	us-gaap	Revenues Revenues	1032578000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	28271000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2507000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	25764000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	9700000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2019	us-gaap	Revenues Revenues	898233000	USD
CY2018	us-gaap	Revenues Revenues	837097000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	107190000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	80812000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	81141000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	20915000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17557000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17439000	USD
CY2020Q4	us-gaap	Assets Assets	1212494000	USD
CY2019Q4	us-gaap	Assets Assets	984450000	USD
CY2018Q4	us-gaap	Assets Assets	1061645000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13068000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8776000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10368000	USD
CY2020	us-gaap	Revenues Revenues	1032578000	USD
CY2019	us-gaap	Revenues Revenues	898233000	USD
CY2018	us-gaap	Revenues Revenues	837097000	USD
CY2020	us-gaap	Revenues Revenues	1032578000	USD
CY2019	us-gaap	Revenues Revenues	898233000	USD
CY2018	us-gaap	Revenues Revenues	837097000	USD
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	91161000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	80132000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	80248000	USD
CY2020Q1	us-gaap	Revenues Revenues	215401000	USD
CY2020Q2	us-gaap	Revenues Revenues	255184000	USD
CY2020Q3	us-gaap	Revenues Revenues	296792000	USD
CY2020Q4	us-gaap	Revenues Revenues	265201000	USD
CY2020	us-gaap	Revenues Revenues	1032578000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	49861000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	65561000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	78495000	USD
CY2020Q4	us-gaap	Gross Profit GrossProfit	62426000	USD
CY2020	us-gaap	Gross Profit GrossProfit	256343000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	12777000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	30748000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	40943000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	22722000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	107190000	USD
CY2020Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-44000	USD
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-222000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-217000	USD
CY2020Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-220000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-703000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	9902000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	24457000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	31334000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	17598000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	83291000	USD
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2157000	USD
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2835000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2426000	USD
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-26143000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-18725000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	12059000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	27292000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	33760000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-8545000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	64566000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.30
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.75
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.96
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.54
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.55
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.30
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.74
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.95
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.53
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.53
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.09
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.80
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.57
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.07
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.09
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.07
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.79
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.57
CY2019Q1	us-gaap	Revenues Revenues	187160000	USD
CY2019Q2	us-gaap	Revenues Revenues	224255000	USD
CY2019Q3	us-gaap	Revenues Revenues	260784000	USD
CY2019Q4	us-gaap	Revenues Revenues	226034000	USD
CY2019	us-gaap	Revenues Revenues	898233000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	37259000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	56468000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	68744000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	57426000	USD
CY2019	us-gaap	Gross Profit GrossProfit	219897000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	7192000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	25073000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	28314000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	20233000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	80812000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2000000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-249000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-79000	USD
CY2019Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	5000	USD
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2525000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-2323000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	4131000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	18803000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	21951000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	15043000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	59928000	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2214000	USD
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1110000	USD
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-686000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	5163000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	6345000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	19913000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	24476000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	14357000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	65091000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.13
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.08
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.58
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.68
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.46
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.85
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.13
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.58
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.67
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.46
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.83
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.16
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.06
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.16

Files In Submission

Name	View Source	Status
0000912562-21-000007-index-headers.html	Edgar Link	pending
0000912562-21-000007-index.html	Edgar Link	pending
0000912562-21-000007.txt	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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rock-20201231_htm.xml	Edgar Link	completed
rock-20201231_lab.xml	Edgar Link	unprocessable
rock-20201231_pre.xml	Edgar Link	unprocessable
Show.js	Edgar Link	pending

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$ROCK
GIBRALTAR INDUSTRIES, INC. Stock $rock

2020 Q4 Form 10-K Financial Statement

#000091256221000007 Filed on February 25, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ROCK GIBRALTAR INDUSTRIES, INC. Stock $rock

2020 Q4 Form 10-K Financial Statement

#000091256221000007 Filed on February 25, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ROCK
GIBRALTAR INDUSTRIES, INC. Stock $rock