$FIX
COMFORT SYSTEMS USA INC Stock $fix

$fix Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000155837022001753 Filed on February 23, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$856.1M	$3.074B	$699.0M
YoY Change	22.48%	7.6%	-2.87%
Cost Of Revenue	$702.0M	$2.510B	$562.0M
YoY Change	24.91%	8.69%	-4.26%
Gross Profit	$154.1M	$563.2M	$137.0M
YoY Change	12.46%	2.97%	3.35%
Gross Profit Margin	18.0%	18.32%	19.6%
Selling, General & Admin	$97.01M	$376.3M	$82.00M
YoY Change	18.31%	5.18%	1.86%
% of Gross Profit	62.97%	66.82%	59.85%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$18.94M	$28.44M	$14.50M
YoY Change	30.65%	1.82%	9.85%
% of Gross Profit	12.3%	5.05%	10.58%
Operating Expenses	$105.3M	$376.3M	$88.90M
YoY Change	18.4%	5.18%	2.66%
Operating Profit	$48.81M	$188.4M	$48.10M
YoY Change	1.48%	-1.16%	4.65%
Interest Expense	$1.561M	$6.196M	$5.800M
YoY Change	-73.09%	-26.11%	-514.29%
% of Operating Profit	3.2%	3.29%	12.06%
Other Income/Expense, Net	$76.00K	$1.836M	$0.00
YoY Change		106.52%
Pretax Income	$50.97M	$190.3M	$54.10M
YoY Change	-5.79%	-0.66%	19.96%
Income Tax	$13.37M	$46.93M	$11.30M
% Of Pretax Income	26.24%	24.66%	20.89%
Net Earnings	$37.60M	$143.3M	$42.84M
YoY Change	-12.24%	-4.52%	25.81%
Net Earnings / Revenue	4.39%	4.66%	6.13%
Basic Earnings Per Share		$3.95	$1.18
Diluted Earnings Per Share	$1.036M	$3.93	$1.17
COMMON SHARES
Basic Shares Outstanding	36.04M	36.29M	36.39M
Diluted Shares Outstanding		36.45M

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$58.78M	$58.78M	$54.90M
YoY Change	7.06%	7.06%	8.07%
Cash & Equivalents	$58.78M	$58.78M	$54.90M
Short-Term Investments
Other Short-Term Assets	$23.70M	$23.70M	$15.50M
YoY Change	52.93%	52.93%	7.64%
Inventory	$21.85M	$21.85M	$13.47M
Prepaid Expenses
Receivables	$865.5M	$865.5M	$683.8M
Other Receivables	$57.49M	$57.49M	$44.20M
Total Short-Term Assets	$1.027B	$1.027B	$811.9M
YoY Change	26.54%	26.53%	2.74%
LONG-TERM ASSETS
Property, Plant & Equipment	$128.6M	$253.3M	$117.2M
YoY Change	9.68%	19.54%	6.75%
Goodwill	$592.1M		$464.4M
YoY Change	27.5%		39.69%
Intangibles	$304.8M		$231.8M
YoY Change	31.48%		44.9%
Long-Term Investments
YoY Change
Other Assets	$8.683M	$31.59M	$7.970M
YoY Change	8.95%	-15.54%	20.48%
Total Long-Term Assets	$1.182B	$1.182B	$945.5M
YoY Change	24.99%	24.99%	32.27%
TOTAL ASSETS
Total Short-Term Assets	$1.027B	$1.027B	$811.9M
Total Long-Term Assets	$1.182B	$1.182B	$945.5M
Total Assets	$2.209B	$2.209B	$1.757B
YoY Change	25.71%	25.7%	16.77%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$254.8M	$254.8M	$204.1M
YoY Change	24.81%	24.83%	4.05%
Accrued Expenses	$171.2M	$184.1M	$187.6M
YoY Change	-8.72%	-9.05%	19.87%
Deferred Revenue	$307.4M		$226.2M
YoY Change	35.87%		35.54%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.788M	$2.788M
YoY Change
Total Short-Term Liabilities	$836.6M	$836.6M	$692.9M
YoY Change	20.73%	20.73%	13.97%
LONG-TERM LIABILITIES
Long-Term Debt	$385.2M	$385.2M	$235.7M
YoY Change	63.42%	63.45%	14.81%
Other Long-Term Liabilities	$72.21M	$179.9M	$50.37M
YoY Change	43.34%	37.33%	56.1%
Total Long-Term Liabilities	$457.4M	$565.1M	$286.1M
YoY Change	59.89%	54.12%	20.42%
TOTAL LIABILITIES
Total Short-Term Liabilities	$836.6M	$836.6M	$692.9M
Total Long-Term Liabilities	$457.4M	$565.1M	$286.1M
Total Liabilities	$1.403B	$1.403B	$1.061B
YoY Change	32.29%	32.29%	15.35%
SHAREHOLDERS EQUITY
Retained Earnings	$628.8M		$502.8M
YoY Change	25.05%		36.38%
Common Stock	$327.5M		$322.9M
YoY Change	1.43%		0.71%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$150.6M		$129.2M
YoY Change	16.51%		24.32%
Treasury Stock Shares	$5.032M		$4.935M
Shareholders Equity	$805.7M	$805.7M	$696.4M
YoY Change
Total Liabilities & Shareholders Equity	$2.209B	$2.209B	$1.757B
YoY Change	25.71%	25.7%	16.77%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$37.60M	$143.3M	$42.84M
YoY Change	-12.24%	-4.52%	25.81%
Depreciation, Depletion And Amortization	$18.94M	$28.44M	$14.50M
YoY Change	30.65%	1.82%	9.85%
Cash From Operating Activities	$27.50M	$180.2M	$70.10M
YoY Change	-60.77%	-37.12%	65.72%
INVESTING ACTIVITIES
Capital Expenditures	-$6.466M	$22.33M	-$4.600M
YoY Change	40.57%	-7.46%	-50.0%
Acquisitions		$227.5M
YoY Change		22.35%
Other Investing Activities	-$120.7M	-$224.4M	-$72.60M
YoY Change	66.19%	22.15%	-10471.43%
Cash From Investing Activities	-$127.1M	-$246.7M	-$77.30M
YoY Change	64.45%	18.73%	820.24%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$27.05M
YoY Change		-10.18%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	90.68M	70.45M	-8.500M
YoY Change	-1166.76%	-194.44%	-63.83%
NET CHANGE
Cash From Operating Activities	27.50M	180.2M	70.10M
Cash From Investing Activities	-127.1M	-246.7M	-77.30M
Cash From Financing Activities	90.68M	70.45M	-8.500M
Net Change In Cash	-8.945M	3.880M	-15.70M
YoY Change	-43.03%	-5.55%	-250.96%
FREE CASH FLOW
Cash From Operating Activities	$27.50M	$180.2M	$70.10M
Capital Expenditures	-$6.466M	$22.33M	-$4.600M
Free Cash Flow	$33.96M	$157.8M	$74.70M
YoY Change	-54.53%	-39.85%	45.05%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2021	dei	Entity File Number EntityFileNumber	1-13011
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	411000
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	411000
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	5032311
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	4935186
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
CY2021	us-gaap	Revenue Practical Expedient Remaining Performance Obligation RevenuePracticalExpedientRemainingPerformanceObligation	true
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001035983
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2021Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2019Q4	fix	Gain Recorded As Reduction In Cost Of Services Expense GainRecordedAsReductionInCostOfServicesExpense	3200000
CY2021Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilities
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3101000
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2270000
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2159000
CY2019	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	1611000
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021	dei	Entity Registrant Name EntityRegistrantName	Comfort Systems USA, Inc.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	76-0526487
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	675 Bering Drive
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 400
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77057
CY2021	dei	City Area Code CityAreaCode	713
CY2021	dei	Local Phone Number LocalPhoneNumber	830-9600
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $.01 par value
CY2021	dei	Trading Symbol TradingSymbol	FIX
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021Q2	dei	Entity Public Float EntityPublicFloat	2790000000
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	35956839
CY2021	dei	Auditor Firm AuditorFirmId	34
CY2020	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2021	dei	Auditor Location AuditorLocation	Houston, Texas
CY2020	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2020	dei	Auditor Location AuditorLocation	Houston, Texas
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	58776000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	54896000
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	8808000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	9087000
CY2021Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	773716000
CY2020Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	619544000
CY2021Q4	fix	Unbilled Accounts Receivable Allowance For Credit Loss UnbilledAccountsReceivableAllowanceForCreditLoss	715000
CY2020Q4	fix	Unbilled Accounts Receivable Allowance For Credit Loss UnbilledAccountsReceivableAllowanceForCreditLoss	784000
CY2021Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	61881000
CY2020Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	45596000
CY2021Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	503000
CY2020Q4	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	759000
CY2021Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	57491000
CY2020Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	44212000
CY2021Q4	us-gaap	Inventory Net InventoryNet	21853000
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CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	117206000
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	124756000
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CY2021Q4	us-gaap	Goodwill Goodwill	592114000
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CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	304781000
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	231807000
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	22905000
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	29401000
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	8683000
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7970000
CY2021Q4	us-gaap	Assets Assets	2209114000
CY2020Q4	us-gaap	Assets Assets	1757355000
CY2021Q4	fix	Costs In Excess Of Billings Allowance For Credit Losses CostsInExcessOfBillingsAllowanceForCreditLosses	84000
CY2020Q4	fix	Costs In Excess Of Billings Allowance For Credit Losses CostsInExcessOfBillingsAllowanceForCreditLosses	79000
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	29900000
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	18622000
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CY2020Q4	us-gaap	Assets Current AssetsCurrent	811852000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	128554000
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2788000
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	254788000
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	204145000
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	129971000
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	121864000
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	307380000
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	226237000
CY2021Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	22227000
CY2020Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	49166000
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CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	91492000
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	836554000
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	692904000
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	385242000
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	235733000
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	107701000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	80576000
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1745000
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CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	50374000
CY2021Q4	us-gaap	Liabilities Liabilities	1403448000
CY2020Q4	us-gaap	Liabilities Liabilities	1060926000
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CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
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CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	129243000
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CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	502810000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	805666000
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CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1757355000
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CY2020	us-gaap	Revenues Revenues	2856659000
CY2019	us-gaap	Revenues Revenues	2615277000
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	2510429000
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CY2019	us-gaap	Cost Of Revenue CostOfRevenue	2113334000
CY2021	us-gaap	Gross Profit GrossProfit	563207000
CY2020	us-gaap	Gross Profit GrossProfit	546983000
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CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	190651000
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CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	24000
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CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	224000
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CY2020	us-gaap	Interest Expense InterestExpense	8385000
CY2019	us-gaap	Interest Expense InterestExpense	9317000
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CY2020	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-9119000
CY2019	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	2991000
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	188000
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	52000
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	187000
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1836000
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	889000
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-11897000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	190274000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	191540000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	151742000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46926000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41401000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37418000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	143348000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	150139000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	114324000
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.95
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.11
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.10
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.93
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.09
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.08
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36285000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36542000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36854000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36450000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36738000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37131000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	498047000
CY2019	us-gaap	Profit Loss ProfitLoss	114324000
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2350000
CY2019	fix	Stock Issued During Period Value Restricted And Performance Stock Award Gross StockIssuedDuringPeriodValueRestrictedAndPerformanceStockAwardGross	2006000
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1498000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4168000
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.395
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	14543000
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	19550000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	585304000
CY2020	us-gaap	Profit Loss ProfitLoss	150139000
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2144000
CY2020	fix	Stock Issued During Period Value Restricted And Performance Stock Award Gross StockIssuedDuringPeriodValueRestrictedAndPerformanceStockAwardGross	1855000
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1076000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4197000
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.425
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	15499000
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	30120000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	696429000
CY2021	us-gaap	Profit Loss ProfitLoss	143348000
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5634000
CY2021	fix	Stock Issued During Period Value Restricted And Performance Stock Award Gross StockIssuedDuringPeriodValueRestrictedAndPerformanceStockAwardGross	2208000
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2363000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4848000
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	17384000
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	27054000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	805666000
CY2021	us-gaap	Profit Loss ProfitLoss	143348000
CY2020	us-gaap	Profit Loss ProfitLoss	150139000
CY2019	us-gaap	Profit Loss ProfitLoss	114324000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	40505000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	286510000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	142028000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	22330000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24131000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	31750000
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	808000
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-14751000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	180151000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32698000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	27082000
CY2021	us-gaap	Depreciation Depreciation	28439000
CY2020	us-gaap	Depreciation Depreciation	27931000
CY2019	us-gaap	Depreciation Depreciation	24490000
CY2021	fix	Change In Right Of Use Assets ChangeInRightOfUseAssets	17592000
CY2020	fix	Change In Right Of Use Assets ChangeInRightOfUseAssets	16692000
CY2019	fix	Change In Right Of Use Assets ChangeInRightOfUseAssets	16887000
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-1452000
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5253000
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2978000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6902000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7953000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4251000
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	538000
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	544000
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	387000
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1540000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1445000
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1701000
CY2021	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-7820000
CY2020	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-9119000
CY2019	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	2991000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	10593000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	6934000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	5878000
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	58046000
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-38486000
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	49508000
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5651000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1457000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2366000
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8623000
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4855000
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	15519000
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	17271000
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-2706000
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	4312000
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1174000
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1373000
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	735000
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	4004000
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	11087000
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	31046000
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	44620000
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	19434000
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	4376000
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-14813000
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	227493000
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	185941000
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	196470000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-246722000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-207802000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-224450000
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	275000000
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	268000000
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	356000000
CY2021	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	125000000
CY2020	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	226000000
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	228000000
CY2021	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	15000000
CY2020	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	15000000
CY2021	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	15696000
CY2020	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	46534000
CY2019	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	3784000
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3805000
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1405000
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17384000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	15499000
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	14543000
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	27054000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	30120000
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	19550000
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2363000
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1076000
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1498000
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5634000
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2144000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2350000
CY2021	fix	Deferred Acquisition Payments DeferredAcquisitionPayments	400000
CY2020	fix	Deferred Acquisition Payments DeferredAcquisitionPayments	650000
CY2019	fix	Deferred Acquisition Payments DeferredAcquisitionPayments	637000
CY2021	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	3481000
CY2020	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	9865000
CY2019	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1343000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	70451000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-74600000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	87590000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	3880000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	4108000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5168000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	54896000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	50788000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	45620000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	58776000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	54896000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	50788000
CY2021	us-gaap	Nature Of Operations NatureOfOperations	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 10pt 0pt;"><b style="font-weight:bold;">1. Business and Organization</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">Comfort Systems USA, Inc., a Delaware corporation, provides comprehensive mechanical and electrical contracting services, which principally includes heating, ventilation and air conditioning (“HVAC”), plumbing, electrical, piping and controls, as well as off-site construction, monitoring and fire protection. We build, install, maintain, repair and replace mechanical, electrical and plumbing (“MEP”) systems throughout the United States. Approximately 46.3% of our consolidated 2021 revenue is attributable to installation of systems in newly constructed facilities, with the remaining 53.7% attributable to maintenance, repair and replacement services. The terms “Comfort Systems,” “we,” “us,” or the “Company,” refer to Comfort Systems USA, Inc. or Comfort Systems USA, Inc. and its consolidated subsidiaries, as appropriate in the context.</p>
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:18pt;text-indent:-18pt;margin:0pt 0pt 12pt 36pt;"><span style="font-style:italic;font-weight:bold;">Use of Estimates</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">The preparation of financial statements in conformity with generally accepted accounting principles requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, revenue and expenses and disclosures regarding contingent assets and liabilities. Actual results could differ from those estimates. The most significant estimates used in our financial statements affect revenue and cost recognition for construction contracts, self-insurance accruals, deferred tax assets, fair value accounting for acquisitions and the quantification of fair value for reporting units in connection with our goodwill impairment testing. </p>
CY2021	us-gaap	Interest Paid Net InterestPaidNet	6052000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	7684000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	8817000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	52204000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	51286000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	45288000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	10709000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	6907000
CY2020	us-gaap	Accounts Receivable Change In Method Credit Loss Expense Reversal AccountsReceivableChangeInMethodCreditLossExpenseReversal	695000
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-1452000
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5253000
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	986000
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2166000
CY2021	fix	Allowance For Doubtful Accounts Receivable Acquired AllowanceForDoubtfulAccountsReceivableAcquired	1839000
CY2020	fix	Allowance For Doubtful Accounts Receivable Acquired AllowanceForDoubtfulAccountsReceivableAcquired	335000
CY2020	fix	Reclassification Of Allowance For Credit Losses ReclassificationOfAllowanceForCreditLosses	-315000
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	10110000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	10709000
CY2021	fix	Warranty Period Of Labor After Servicing WarrantyPeriodOfLaborAfterServicing	P30D
CY2020Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	3103580000
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:18pt;text-indent:-18pt;margin:0pt 0pt 12pt 36pt;"><span style="font-style:italic;font-weight:bold;">Concentrations of Credit Risk</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt;">We provide services in a broad range of geographic regions. Our credit risk primarily consists of receivables from a variety of customers including general contractors, property owners and developers, and commercial and industrial companies. We are subject to potential credit risk related to changes in business and economic factors </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">throughout the United States within the nonresidential construction industry. However, we are entitled to payment for work performed and have certain lien rights related to that work. Further, we believe that our contract acceptance, billing and collection policies are adequate to manage potential credit risk. We regularly review our accounts receivable and estimate an allowance for credit losses. We have a diverse customer base, with our top customer representing 9% of consolidated 2021 revenue.</p>
CY2019Q4	us-gaap	Gain On Business Interruption Insurance Recovery GainOnBusinessInterruptionInsuranceRecovery	4800000
CY2019Q4	fix	Gain Recorded As Reduction In Sga GainRecordedAsReductionInSga	1600000
CY2021Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	3723715000
CY2021Q4	fix	Customer Advances And Progress Payments For Long Term Contract Or Program CustomerAdvancesAndProgressPaymentsForLongTermContractOrProgram	589286000
CY2020Q4	fix	Customer Advances And Progress Payments For Long Term Contract Or Program CustomerAdvancesAndProgressPaymentsForLongTermContractOrProgram	548435000
CY2021Q4	fix	Billed Contract Receivables Contracts In Progress BilledContractReceivablesContractsInProgress	4527801000
CY2020Q4	fix	Billed Contract Receivables Contracts In Progress BilledContractReceivablesContractsInProgress	3813171000
CY2021Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	61881000
CY2020Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	45596000
CY2021Q4	fix	Unbilled Accounts Receivable Allowance For Credit Loss UnbilledAccountsReceivableAllowanceForCreditLoss	715000
CY2020Q4	fix	Unbilled Accounts Receivable Allowance For Credit Loss UnbilledAccountsReceivableAllowanceForCreditLoss	784000
CY2021Q4	fix	Contract Receivables Contracts In Process Net Receivable Liability ContractReceivablesContractsInProcessNetReceivableLiability	-277396000
CY2020Q4	fix	Contract Receivables Contracts In Process Net Receivable Liability ContractReceivablesContractsInProcessNetReceivableLiability	-207536000
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	29900000
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	18622000
CY2021Q4	fix	Costs In Excess Of Billings Allowance For Credit Losses CostsInExcessOfBillingsAllowanceForCreditLosses	84000
CY2020Q4	fix	Costs In Excess Of Billings Allowance For Credit Losses CostsInExcessOfBillingsAllowanceForCreditLosses	79000
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	307380000
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	226237000
CY2021Q4	fix	Contract Receivables Contracts In Process Net Receivable Liability ContractReceivablesContractsInProcessNetReceivableLiability	-277396000
CY2020Q4	fix	Contract Receivables Contracts In Process Net Receivable Liability ContractReceivablesContractsInProcessNetReceivableLiability	-207536000
CY2021	fix	Retention Provisions Construction Contracts Holding Period RetentionProvisionsConstructionContractsHoldingPeriod	P6M
CY2021Q4	us-gaap	Construction Contractor Receivable Retainage ConstructionContractorReceivableRetainage	139500000
CY2020Q4	us-gaap	Construction Contractor Receivable Retainage ConstructionContractorReceivableRetainage	124100000
CY2021Q4	fix	Construction Contractor Retainage Payable ConstructionContractorRetainagePayable	24000000.0
CY2020Q4	fix	Construction Contractor Retainage Payable ConstructionContractorRetainagePayable	22200000
CY2021	us-gaap	Revenue Performance Obligation Description Of Payment Terms RevenuePerformanceObligationDescriptionOfPaymentTerms	We typically invoice our customers with payment terms of net due in 30 days
CY2021	fix	Receivable Due Term ReceivableDueTerm	P30D
CY2021	us-gaap	Revenues Revenues	3073636000
CY2021	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2020	us-gaap	Revenues Revenues	2856659000
CY2020	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2019	us-gaap	Revenues Revenues	2615277000
CY2019	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2021	us-gaap	Revenues Revenues	3073636000
CY2021	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2020	us-gaap	Revenues Revenues	2856659000
CY2020	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2019	us-gaap	Revenues Revenues	2615277000
CY2019	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2021	us-gaap	Revenues Revenues	3073636000
CY2021	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2020	us-gaap	Revenues Revenues	2856659000
CY2020	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2019	us-gaap	Revenues Revenues	2615277000
CY2019	fix	Percentage Of Revenue From Contract With Customer PercentageOfRevenueFromContractWithCustomer	1.000
CY2021	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	10356000
CY2021	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	36523000
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	166918000
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	18622000
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	226237000
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	2736000
CY2020	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	9509000
CY2020	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	39885000
CY2021	us-gaap	Contract With Customer Receivable Credit Loss Expense Reversal ContractWithCustomerReceivableCreditLossExpenseReversal	-5000
CY2020	us-gaap	Contract With Customer Receivable Credit Loss Expense Reversal ContractWithCustomerReceivableCreditLossExpenseReversal	-79000
CY2021	fix	Contract With Customer Asset Increase Decrease For Change Due To Conditional Versus Unconditional ContractWithCustomerAssetIncreaseDecreaseForChangeDueToConditionalVersusUnconditional	927000
CY2021	us-gaap	Contract With Customer Liability Change In Timeframe Performance Obligation Satisfied Revenue Recognized ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized	44620000
CY2020	fix	Contract With Customer Asset Increase Decrease For Change Due To Conditional Versus Unconditional ContractWithCustomerAssetIncreaseDecreaseForChangeDueToConditionalVersusUnconditional	6456000
CY2020	us-gaap	Contract With Customer Liability Change In Timeframe Performance Obligation Satisfied Revenue Recognized ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized	19434000
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	29900000
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	307380000
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	18622000
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	226237000
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	207600000
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2310000000
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021	fix	Renewable Service Maintenance Agreements Term RenewableServiceMaintenanceAgreementsTerm	P1Y
CY2021Q4	fix	Life Insurance Contracts Number Of Employees Covered LifeInsuranceContractsNumberOfEmployeesCovered	85
CY2021Q4	fix	Life Insurance Contracts Face Amount LifeInsuranceContractsFaceAmount	62300000
CY2021Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	6600000
CY2020Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	5400000
CY2019Q4	us-gaap	Goodwill Goodwill	332447000
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	131945000
CY2020Q4	us-gaap	Goodwill Goodwill	464392000
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	127722000
CY2021Q4	us-gaap	Goodwill Goodwill	592114000
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	477667000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	172886000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	366987000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	135180000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	40500000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32700000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	27100000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	46505000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	34532000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	32343000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	30156000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	29312000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	131933000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	304781000
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	293379000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	264408000
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	164825000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	147202000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	128554000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	117206000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	28400000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	27900000
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	24500000
CY2021Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	8969000
CY2020Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	8914000
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	19050000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16586000
CY2021Q4	fix	Accrued Job Losses AccruedJobLosses	8962000
CY2020Q4	fix	Accrued Job Losses AccruedJobLosses	2151000
CY2021Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	3861000
CY2020Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	3731000
CY2021Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	13734000
CY2020Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	4559000
CY2021Q4	fix	Liabilities Due To Former Owners Current LiabilitiesDueToFormerOwnersCurrent	27613000
CY2020Q4	fix	Liabilities Due To Former Owners Current LiabilitiesDueToFormerOwnersCurrent	10280000
CY2021Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	37211000
CY2020Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	45271000
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	119400000
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	91492000
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	266000
CY2021Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	388220000
CY2020Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	236000000
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	190000
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	267000
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	388030000
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	235733000
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2788000
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	385242000
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	235733000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2788000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	27981000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	35352000
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	322099000
CY2021Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	388220000
CY2021	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	1052000
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	387000
CY2020	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	1354000
CY2019	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	1531000
CY2021	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	3371000
CY2020	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	5319000
CY2019	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	6887000
CY2021	fix	Interest Expense On Interest Rate Swaps InterestExpenseOnInterestRateSwaps	499000
CY2020	fix	Interest Expense On Interest Rate Swaps InterestExpenseOnInterestRateSwaps	338000
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	57000
CY2021	fix	Letter Of Credit Fees Amount LetterOfCreditFeesAmount	679000
CY2020	fix	Letter Of Credit Fees Amount LetterOfCreditFeesAmount	830000
CY2019	fix	Letter Of Credit Fees Amount LetterOfCreditFeesAmount	512000
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	538000
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	544000
CY2021	us-gaap	Interest Expense InterestExpense	6196000
CY2020	us-gaap	Interest Expense InterestExpense	8385000
CY2019	us-gaap	Interest Expense InterestExpense	9317000
CY2021Q4	fix	Debt Instrument Covenant Fixed Charge Coverage Ratio DebtInstrumentCovenantFixedChargeCoverageRatio	2.00
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	300000
CY2021	fix	Variable Lease And Short Term Lease Cost VariableLeaseAndShortTermLeaseCost	11900000
CY2020	fix	Variable Lease And Short Term Lease Cost VariableLeaseAndShortTermLeaseCost	7700000
CY2019	fix	Variable Lease And Short Term Lease Cost VariableLeaseAndShortTermLeaseCost	8400000
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.042
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	34200000
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	28200000
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	24800000
CY2021	us-gaap	Lessee Operating Lease Existence Of Option To Extend LesseeOperatingLeaseExistenceOfOptionToExtend	true
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y8M12D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y6M
CY2021	us-gaap	Payments For Rent PaymentsForRent	4900000
CY2020	us-gaap	Payments For Rent PaymentsForRent	4200000
CY2019	us-gaap	Payments For Rent PaymentsForRent	3700000
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	124756000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	94727000
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	19050000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16586000
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	107701000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	80576000
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	126751000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	97162000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	23729000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	21142000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	18738000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	17642000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	14631000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	55161000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	151043000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	24292000
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	126751000
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	22232000
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	20443000
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	47621000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	27346000
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	640000
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	31283000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	36556000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	33281000
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8741000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12798000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8388000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	40024000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	49354000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	41669000
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6197000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5483000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3750000
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	705000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2470000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-501000
CY2021	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	6902000
CY2020	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-7953000
CY2019	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-4251000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46926000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41401000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37418000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.247
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.216
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.247
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	39958000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	40223000
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31866000
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7340000
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8406000
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6644000
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-39000
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-254000
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-279000
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	78000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46926000
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	18557000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-2210000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-426000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-714000
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	63000
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-380000
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	7338000
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2381000
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2470000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2180000
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	26133000
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	4569000
CY2021	fix	Income Tax Reconciliation Section179d Deduction IncomeTaxReconciliationSection179dDeduction	1207000
CY2020	fix	Income Tax Reconciliation Section179d Deduction IncomeTaxReconciliationSection179dDeduction	1062000
CY2019	fix	Income Tax Reconciliation Section179d Deduction IncomeTaxReconciliationSection179dDeduction	5126000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41401000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37418000
CY2019Q3	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	4600000
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	2700000
CY2020Q3	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7300000
CY2019	fix	Income Tax Reconciliation Section179d Deduction Net Of Tax Contingencies IncomeTaxReconciliationSection179dDeductionNetOfTaxContingencies	2200000
CY2020Q3	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	8300000
CY2022Q1	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	28800000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1878000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	2186000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3392000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2791000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	36255000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	39761000
CY2021Q4	fix	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	27944000
CY2020Q4	fix	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	22768000
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	10379000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12127000
CY2021Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	3851000
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	758000
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	627000
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	84457000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	80260000
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	475000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	514000
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	83982000
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	79746000
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	15534000
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	13877000
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	27905000
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	22715000
CY2021Q4	fix	Deferred Tax Liabilities Long Term Contracts DeferredTaxLiabilitiesLongTermContracts	964000
CY2020Q4	fix	Deferred Tax Liabilities Long Term Contracts DeferredTaxLiabilitiesLongTermContracts	609000
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	242000
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	17321000
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	11615000
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1098000
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2626000
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	62822000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	51684000
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	21160000
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	28062000
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	22905000
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	29401000
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1745000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1339000
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	7200000
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	3200000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28756000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10199000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2966000
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	207000
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	489000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	26858000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7473000
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	240000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	8301000
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	29452000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28756000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10199000
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	29500000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28800000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10200000
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	8300000
CY2022Q1	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	28800000
CY2021	fix	Defined Contribution Plan Maximum Annual Contribution Per Employee By Employer Percent DefinedContributionPlanMaximumAnnualContributionPerEmployeeByEmployerPercent	0.025
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16100000
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16300000
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14200000
CY2021	fix	Defined Contribution Plan Amount Payable DefinedContributionPlanAmountPayable	600000
CY2020	fix	Defined Contribution Plan Amount Payable DefinedContributionPlanAmountPayable	500000
CY2021	fix	Multi Employer Pension Plan Number Of Employees Who Are Union Members MultiEmployerPensionPlanNumberOfEmployeesWhoAreUnionMembers	5
CY2020	fix	Multi Employer Pension Plan Number Of Employees Who Are Union Members MultiEmployerPensionPlanNumberOfEmployeesWhoAreUnionMembers	6
CY2019	us-gaap	Multiemployer Plan Pension Insignificant Plan Contribution MultiemployerPlanPensionInsignificantPlanContribution	0
CY2020	us-gaap	Multiemployer Plan Pension Insignificant Plan Contribution MultiemployerPlanPensionInsignificantPlanContribution	0
CY2021	us-gaap	Multiemployer Plan Pension Insignificant Plan Contribution MultiemployerPlanPensionInsignificantPlanContribution	0
CY2021	fix	Defined Benefit Plan Period In Which Certain Individuals Are Entitled To Fixed Annual Payments DefinedBenefitPlanPeriodInWhichCertainIndividualsAreEntitledToFixedAnnualPayments	P15Y
CY2021	fix	Defined Benefit Plan Period In Which Certain Individuals Are Entitled To Fixed Annual Payments DefinedBenefitPlanPeriodInWhichCertainIndividualsAreEntitledToFixedAnnualPayments	P15Y
CY2021	fix	Defined Benefit Plan Maximum Age In Which Certain Individuals Are Entitled To Fixed Annual Payments DefinedBenefitPlanMaximumAgeInWhichCertainIndividualsAreEntitledToFixedAnnualPayments	P65Y
CY2021	fix	Defined Benefit Plan Maximum Age In Which Certain Individuals Are Entitled To Fixed Annual Payments DefinedBenefitPlanMaximumAgeInWhichCertainIndividualsAreEntitledToFixedAnnualPayments	P65Y
CY2021	fix	Defined Benefit Plan Period Portion Of Benefits Vesting After Ten Years Of Completed Service DefinedBenefitPlanPeriodPortionOfBenefitsVestingAfterTenYearsOfCompletedService	0.50
CY2021	fix	Defined Benefit Plan Period Of Completed Service Over Which50 Percent Of Benefits Are Vested DefinedBenefitPlanPeriodOfCompletedServiceOverWhich50PercentOfBenefitsAreVested	P10Y
CY2021	fix	Defined Benefit Plan Period Portion Of Benefits Vesting After Fifteen Years Of Completed Service DefinedBenefitPlanPeriodPortionOfBenefitsVestingAfterFifteenYearsOfCompletedService	0.75
CY2021	fix	Defined Benefit Plan Period Of Completed Service Over Which75 Percent Of Benefits Are Vested DefinedBenefitPlanPeriodOfCompletedServiceOverWhich75PercentOfBenefitsAreVested	P15Y
CY2021	fix	Defined Benefit Plan Period Of Service Over Which Benefits Are Fully Vested DefinedBenefitPlanPeriodOfServiceOverWhichBenefitsAreFullyVested	P20Y
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	4000000.0
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	4000000.0
CY2021Q4	fix	Self Insurance Amount Of Loss Fully Insured Above Deductible Coverage Amount SelfInsuranceAmountOfLossFullyInsuredAboveDeductibleCoverageAmount	150000000.0
CY2021Q4	fix	Self Insurance Aggregate Loss Insurance Covered Amount SelfInsuranceAggregateLossInsuranceCoveredAmount	150000000.0
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36285000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36542000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36854000
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	89000
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36091000
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36188000
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	36658000
CY2021	fix	Effect Of Using Weighted Average Common Shares Outstanding EffectOfUsingWeightedAverageCommonSharesOutstanding	194000
CY2020	fix	Effect Of Using Weighted Average Common Shares Outstanding EffectOfUsingWeightedAverageCommonSharesOutstanding	354000
CY2019	fix	Effect Of Using Weighted Average Common Shares Outstanding EffectOfUsingWeightedAverageCommonSharesOutstanding	196000
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	123000
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	204000
CY2021	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	76000
CY2020	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	73000
CY2019	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	73000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36450000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36738000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37131000
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10600000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6900000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5900000
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2200000
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1500000
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1300000
CY2021Q4	us-gaap	Assets Assets	2209114000
CY2020Q4	us-gaap	Assets Assets	1757355000
CY2021	us-gaap	Revenues Revenues	3073636000
CY2021	us-gaap	Gross Profit GrossProfit	563207000
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	22330000
CY2020	us-gaap	Revenues Revenues	2856659000
CY2020	us-gaap	Gross Profit GrossProfit	546983000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24131000
CY2019	us-gaap	Revenues Revenues	2615277000
CY2019	us-gaap	Gross Profit GrossProfit	501943000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	31750000

Files In Submission

Name	View Source	Status
0001558370-22-001753-index-headers.html	Edgar Link	pending
0001558370-22-001753-index.html	Edgar Link	pending
0001558370-22-001753.txt	Edgar Link	pending
0001558370-22-001753-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
fix-20211231.xsd	Edgar Link	pending
fix-20211231x10k.htm	Edgar Link	pending
fix-20211231x10k002.jpg	Edgar Link	pending
fix-20211231x10k_htm.xml	Edgar Link	completed
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fix-20211231xex23d1.htm	Edgar Link	pending
fix-20211231xex23d2.htm	Edgar Link	pending
fix-20211231xex31d1.htm	Edgar Link	pending
fix-20211231xex31d2.htm	Edgar Link	pending
fix-20211231xex32d1.htm	Edgar Link	pending
fix-20211231xex32d2.htm	Edgar Link	pending
fix-20211231_cal.xml	Edgar Link	unprocessable
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fix-20211231_lab.xml	Edgar Link	unprocessable
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MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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R8.htm	Edgar Link	pending
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report.css	Edgar Link	pending
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$FIX
COMFORT SYSTEMS USA INC Stock $fix

2021 Q4 Form 10-K Financial Statement

#000155837022001753 Filed on February 23, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FIX COMFORT SYSTEMS USA INC Stock $fix

2021 Q4 Form 10-K Financial Statement

#000155837022001753 Filed on February 23, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FIX
COMFORT SYSTEMS USA INC Stock $fix