$PWR
QUANTA SERVICES, INC. Stock $pwr

$pwr Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000105091520000020 Filed on February 28, 2020

Income Statement

Concept	2019 Q4	2019	2018 Q4
Revenue	$3.113B	$12.11B	$3.112B
YoY Change	0.02%	8.42%	25.56%
Cost Of Revenue	$2.670B	$10.51B	$2.693B
YoY Change	-0.85%	8.47%	24.9%
Gross Profit	$443.3M	$1.600B	$419.7M
YoY Change	5.62%	8.13%	29.99%
Gross Profit Margin	14.24%	13.21%	13.49%
Selling, General & Admin	$255.1M	$956.0M	$212.0M
YoY Change	20.33%	11.48%	2.76%
% of Gross Profit	57.54%	59.74%	50.51%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$78.10M	$218.1M	$64.70M
YoY Change	20.71%	7.69%	11.17%
% of Gross Profit	17.62%	13.63%	15.42%
Operating Expenses	$276.6M	$956.0M	$224.4M
YoY Change	23.26%	11.48%	3.74%
Operating Profit	$166.7M	$554.9M	$195.3M
YoY Change	-14.64%	2.7%	83.26%
Interest Expense	-$18.70M	$66.89M	-$11.30M
YoY Change	65.49%	81.05%	73.85%
% of Operating Profit	-11.22%	12.05%	-5.79%
Other Income/Expense, Net	$11.80M	$83.38M	-$5.700M
YoY Change	-307.02%	-276.6%	-242.5%
Pretax Income	$145.9M	$572.3M	$128.8M
YoY Change	13.28%	25.04%	180.61%
Income Tax	$25.60M	$165.5M	$77.30M
% Of Pretax Income	17.55%	28.91%	60.02%
Net Earnings	$120.3M	$402.0M	$57.79M
YoY Change	108.16%	37.05%	-50.0%
Net Earnings / Revenue	3.86%	3.32%	1.86%
Basic Earnings Per Share		$2.76
Diluted Earnings Per Share	$793.1K	$2.73	$375.4K
COMMON SHARES
Basic Shares Outstanding		145.7M shares
Diluted Shares Outstanding		147.5M shares

Balance Sheet

Concept	2019 Q4	2019	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$164.8M	$164.8M	$78.70M
YoY Change	109.4%	109.4%	-43.09%
Cash & Equivalents	$164.8M	$164.8M	$78.69M
Short-Term Investments
Other Short-Term Assets	$261.3M	$261.3M	$208.1M
YoY Change	25.56%	25.56%	23.57%
Inventory	$55.72M	$55.70M	$107.7M
Prepaid Expenses
Receivables	$2.748B	$3.349B	$2.355B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.831B	$3.831B	$3.326B
YoY Change	15.18%	15.18%	15.9%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.671B	$1.671B	$1.276B
YoY Change	30.95%	30.96%	-0.98%
Goodwill	$2.023B		$1.900B
YoY Change	6.46%		1.67%
Intangibles	$413.7M		$280.2M
YoY Change	47.67%		6.46%
Long-Term Investments
YoY Change
Other Assets	$393.3M	$393.3M	$293.6M
YoY Change	33.95%	33.96%	54.63%
Total Long-Term Assets	$4.501B	$4.501B	$3.750B
YoY Change	20.03%	20.03%	3.86%
TOTAL ASSETS
Total Short-Term Assets	$3.831B	$3.831B	$3.326B
Total Long-Term Assets	$4.501B	$4.501B	$3.750B
Total Assets	$8.332B	$8.332B	$7.076B
YoY Change	17.75%	17.75%	9.19%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.490B	$798.7M	$1.315B
YoY Change	13.32%	1.55%	24.3%
Accrued Expenses	$92.50M	$614.2M
YoY Change		29.36%
Deferred Revenue	$606.1M		$426.0M
YoY Change	42.3%		-1.71%
Short-Term Debt	$6.542M	$6.500M	$33.42M
YoY Change	-80.43%	-80.54%
Long-Term Debt Due	$68.33M	$68.30M	$32.22M
YoY Change	112.04%	112.11%	2541.31%
Total Short-Term Liabilities	$2.263B	$2.263B	$1.806B
YoY Change	25.3%	25.3%	21.05%
LONG-TERM LIABILITIES
Long-Term Debt	$1.292B	$1.292B	$1.041B
YoY Change	24.19%	24.19%	55.14%
Other Long-Term Liabilities	$311.3M	$507.8M	$404.6M
YoY Change	-23.05%	25.51%	18.17%
Total Long-Term Liabilities	$311.3M	$1.800B	$1.445B
YoY Change	-78.46%	24.56%	42.64%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.263B	$2.263B	$1.806B
Total Long-Term Liabilities	$311.3M	$1.800B	$1.445B
Total Liabilities	$4.278B	$4.281B	$3.470B
YoY Change	23.27%	23.33%	29.27%
SHAREHOLDERS EQUITY
Retained Earnings	$2.854B		$2.477B
YoY Change	15.22%		13.06%
Common Stock	$2.025B		$1.967B
YoY Change	2.91%		4.13%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$586.8M		$554.4M
YoY Change	5.83%		548.84%
Treasury Stock Shares	17.09M shares		16.23M shares
Shareholders Equity	$4.050B	$4.050B	$3.604B
YoY Change
Total Liabilities & Shareholders Equity	$8.332B	$8.332B	$7.076B
YoY Change	17.75%	17.75%	9.19%

Cashflow Statement

Concept	2019 Q4	2019	2018 Q4
OPERATING ACTIVITIES
Net Income	$120.3M	$402.0M	$57.79M
YoY Change	108.16%	37.05%	-50.0%
Depreciation, Depletion And Amortization	$78.10M	$218.1M	$64.70M
YoY Change	20.71%	7.69%	11.17%
Cash From Operating Activities	$626.8M	$526.6M	$137.2M
YoY Change	356.85%	46.76%	-30.43%
INVESTING ACTIVITIES
Capital Expenditures	-$54.60M	$261.8M	-$82.30M
YoY Change	-33.66%	-10.84%	7.72%
Acquisitions		$388.0M
YoY Change		308.74%
Other Investing Activities	$44.10M	-$355.3M	$1.300M
YoY Change	3292.31%	275.58%	-98.14%
Cash From Investing Activities	-$10.50M	-$617.6M	-$81.00M
YoY Change	-87.04%	53.38%	1146.15%
FINANCING ACTIVITIES
Cash Dividend Paid		$23.24M
YoY Change
Common Stock Issuance & Retirement, Net		$20.10M
YoY Change		-95.46%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-531.0M	$177.7M	-89.50M
YoY Change	493.3%	-1172.34%	-37.06%
NET CHANGE
Cash From Operating Activities	626.8M	$526.6M	137.2M
Cash From Investing Activities	-10.50M	-$617.6M	-81.00M
Cash From Financing Activities	-531.0M	$177.7M	-89.50M
Net Change In Cash	85.30M	$86.49M	-33.30M
YoY Change	-356.16%	-242.91%	-168.66%
FREE CASH FLOW
Cash From Operating Activities	$626.8M	$526.6M	$137.2M
Capital Expenditures	-$54.60M	$261.8M	-$82.30M
Free Cash Flow	$681.4M	$264.8M	$219.5M
YoY Change	210.43%	306.16%	-19.77%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001050915
CY2018	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.05
CY2019	pwr	General Liability Insurance Claims Deductible GeneralLiabilityInsuranceClaimsDeductible	10000000	USD
CY2019Q4	pwr	Leases Option To Purchase Liability Failed Sale Leaseback LeasesOptionToPurchaseLiabilityFailedSaleLeaseback	11800000	USD
CY2017	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	-347000	USD
CY2018	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	-677000	USD
CY2019	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	-200000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1100000	USD
CY2018	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1100000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	16229146	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	17091222	shares
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-13831
CY2019	dei	Entity Registrant Name EntityRegistrantName	Quanta Services, Inc.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2851603
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	2800 Post Oak Boulevard, Suite 2600
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77056
CY2019	dei	City Area Code CityAreaCode	713
CY2019	dei	Local Phone Number LocalPhoneNumber	629-7600
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.00001 par value
CY2019	dei	Trading Symbol TradingSymbol	PWR
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	5400000000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	142508874	shares
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164798000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2747911000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2354737000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	601268000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	576891000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	55719000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	107732000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	261290000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	208057000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	3830986000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	3326104000	USD
CY2019Q4	pwr	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1386654000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1276032000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	284369000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	393264000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	293592000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	413734000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	280180000	USD
CY2018Q4	us-gaap	Assets Assets	7075787000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	2022675000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1899879000	USD
CY2019Q4	us-gaap	Assets Assets	8331682000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	74869000	USD
CY2018Q4	us-gaap	Debt Current DebtCurrent	65646000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	92475000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1489559000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1314520000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	606146000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	425961000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2263049000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1806127000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1292195000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1040532000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	196521000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	214779000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	219115000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	311307000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	404560000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	4277851000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	3470334000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2024610000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1967354000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2854271000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2477291000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-241818000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-286048000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	586773000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	554440000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	4050292000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3604159000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	3539000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1294000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4053831000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3605453000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8331682000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7075787000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12112153000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11171423000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9466478000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	10511901000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	9691459000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	8224618000	USD
CY2019	us-gaap	Gross Profit GrossProfit	1600252000	USD
CY2018	us-gaap	Gross Profit GrossProfit	1479964000	USD
CY2017	us-gaap	Gross Profit GrossProfit	1241860000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	955991000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	857574000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	777920000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	62091000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	43994000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32205000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	13892000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	49375000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	58057000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-13404000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	11248000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	5171000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	554874000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	540269000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	378849000	USD
CY2019	us-gaap	Interest Expense InterestExpense	66890000	USD
CY2018	us-gaap	Interest Expense InterestExpense	36945000	USD
CY2017	us-gaap	Interest Expense InterestExpense	20946000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	927000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	1555000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	832000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	83376000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-47213000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4978000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	572287000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	457666000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	353757000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	165472000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	161659000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35532000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	406815000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	296007000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	318225000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4771000	USD
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CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.02
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.73
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.76
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.92
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3247000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	402044000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	293346000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	314978000	USD
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157155000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152963000	shares
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.90
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	156124000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147534000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	154226000	shares
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.17
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2019	us-gaap	Profit Loss ProfitLoss	406815000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	296007000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	318225000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	43535000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-84484000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	67404000	USD
CY2019	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	695000	USD
CY2018	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	1831000	USD
CY2017	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	874000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	44230000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-82653000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	68278000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	451045000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	213354000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	386503000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4771000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2661000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3247000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	446274000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	210693000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	383256000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	406815000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	296007000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	318225000	USD
CY2019	us-gaap	Depreciation Depreciation	218107000	USD
CY2018	us-gaap	Depreciation Depreciation	202519000	USD
CY2017	us-gaap	Depreciation Depreciation	183808000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	62091000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	43994000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32205000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	13892000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	49375000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	58057000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-13404000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	11248000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	5171000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	76801000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-52867000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10945000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1870000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1270000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1321000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	5797000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-3296000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	549000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11249000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7169000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	87000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7919000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	61974000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-32130000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	52013000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	52484000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	46448000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	5568000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	385000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-409000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	156805000	USD
CY2018	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	400533000	USD
CY2017	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	241764000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	526551000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	358789000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	371891000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	261762000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	293595000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	244651000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	31142000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	31780000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	23348000	USD
CY2019	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1964000	USD
CY2018	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	714000	USD
CY2017	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1175000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	387966000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	94917000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	361217000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	47056000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	36909000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	56528000	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	46590000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	4705000	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	65789000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	508000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	14448000	USD
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-617596000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-402670000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-572084000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	6175558000	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	4491782000	USD
CY2017	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	2932338000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	5903069000	USD
CY2018	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	4076460000	USD
CY2017	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	2624404000	USD
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	2203000	USD
CY2018	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1298000	USD
CY2017	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	5361000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-28292000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	33790000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-2783000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2309000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1976000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1507000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	2526000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	4038000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	2001000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	16144000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	15218000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	18543000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	25000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	23236000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20092000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	443152000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	177687000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-16570000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	227764000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-153000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-68000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1794000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	86489000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-60519000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	29365000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	83256000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143775000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	114410000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169745000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	83256000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143775000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3342702000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	68278000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	89604000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	29259000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	25000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	50000000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2001000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	463000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	318225000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3795629000	USD
CY2018Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-1276000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-82653000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	22882000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	37417000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	451290000	USD
CY2018	us-gaap	Dividends Cash DividendsCash	5838000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	4038000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	1387000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	296007000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3605453000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	44230000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1791000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	35086000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	11954000	USD
CY2019	us-gaap	Dividends Cash DividendsCash	25064000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2526000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	406815000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4053831000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-top:9px;text-align:justify;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses recognized during the periods presented. Quanta reviews all significant estimates affecting its consolidated financial statements on a recurring basis and records the effect of any necessary adjustments prior to their publication. Judgments and estimates are based on Quanta’s beliefs and assumptions derived from information available at the time such judgments and estimates are made. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of financial statements. Estimates are primarily used in Quanta’s assessment of the allowance for doubtful accounts, valuation of inventory, useful lives of assets, fair value assumptions in analyzing goodwill, other intangibles and long-lived asset impairments, equity and other investments, purchase price allocations, acquisition-related contingent consideration liabilities, multiemployer pension plan withdrawal liabilities, contingent liabilities associated with, among other things, legal proceedings and claims, parent guarantees and indemnity obligations, revenue recognition for construction contracts inclusive of contractual change orders and claims, estimated insurance claim recoveries, stock-based compensation, operating results of reportable segments, provision for income taxes and uncertain tax positions.</span></div>
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	5300000000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4680000000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.595
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.662
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2019Q4	pwr	Revenue Recognized Related To Unapproved Change Orders And Claims RevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims	170000000.0	USD
CY2018Q4	pwr	Revenue Recognized Related To Unapproved Change Orders And Claims RevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims	121800000	USD
CY2019	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.05
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12112153000	USD
CY2019	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11171423000	USD
CY2018	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2019	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12112153000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11171423000	USD
CY2018	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2019	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.500
CY2018	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.577
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	601268000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	576891000	USD
CY2017Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	497292000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	606146000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	425961000	USD
CY2017Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	433387000	USD
CY2019	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	60200000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	370000000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	9400000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5800000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	12600000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	25900000	USD
CY2019Q4	us-gaap	Contract Receivable Retainage Due One Year Or Less ContractReceivableRetainageDueOneYearOrLess	299600000	USD
CY2018Q4	us-gaap	Contract Receivable Retainage Due One Year Or Less ContractReceivableRetainageDueOneYearOrLess	337100000	USD
CY2019Q4	us-gaap	Contract Receivable Retainage Due After One Year ContractReceivableRetainageDueAfterOneYear	54200000	USD
CY2018Q4	us-gaap	Contract Receivable Retainage Due After One Year ContractReceivableRetainageDueAfterOneYear	99600000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	524300000	USD
CY2018Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	434900000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164798000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
CY2018Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	37200000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164798000	USD
CY2019Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	37800000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
CY2019	us-gaap	Depreciation Depreciation	218100000	USD
CY2018	us-gaap	Depreciation Depreciation	202500000	USD
CY2017	us-gaap	Depreciation Depreciation	183800000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10000000.0	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2700000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	13900000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	49400000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2300000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2000000.0	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1500000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Gross DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross	17200000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Gross DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross	14900000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Accumulated Amortization DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAccumulatedAmortization	10500000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Accumulated Amortization DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAccumulatedAmortization	8600000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1900000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1300000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1300000	USD
CY2019	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	Divisions
CY2019	pwr	Periods Of Cash Flows Before Terminal Value PeriodsOfCashFlowsBeforeTerminalValue	P5Y
CY2018	pwr	Periods Of Cash Flows Before Terminal Value PeriodsOfCashFlowsBeforeTerminalValue	P5Y
CY2017	pwr	Periods Of Cash Flows Before Terminal Value PeriodsOfCashFlowsBeforeTerminalValue	P5Y
CY2019	pwr	Discounted Cash Flows Weighted Percentage DiscountedCashFlowsWeightedPercentage	0.70
CY2018	pwr	Discounted Cash Flows Weighted Percentage DiscountedCashFlowsWeightedPercentage	0.70
CY2017	pwr	Discounted Cash Flows Weighted Percentage DiscountedCashFlowsWeightedPercentage	0.70
CY2019	pwr	Market Multiple Weighted Percentage MarketMultipleWeightedPercentage	0.15
CY2018	pwr	Market Multiple Weighted Percentage MarketMultipleWeightedPercentage	0.15
CY2017	pwr	Market Multiple Weighted Percentage MarketMultipleWeightedPercentage	0.15
CY2019	pwr	Market Capitalization Weighted Percentage MarketCapitalizationWeightedPercentage	0.15
CY2018	pwr	Market Capitalization Weighted Percentage MarketCapitalizationWeightedPercentage	0.15
CY2017	pwr	Market Capitalization Weighted Percentage MarketCapitalizationWeightedPercentage	0.15
CY2019Q4	us-gaap	Number Of Reporting Units NumberOfReportingUnits	1	Reporting_Unit
CY2019Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	57000000.0	USD
CY2017	us-gaap	Number Of Reporting Units NumberOfReportingUnits	2	Reporting_Unit
CY2019Q4	pwr	Decrease In Fair Value Of Reporting Units Considered For Impairment Calculation DecreaseInFairValueOfReportingUnitsConsideredForImpairmentCalculation	0.10
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40900000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-200000	USD
CY2019	pwr	Unrecognized Tax Benefits Decrease Resulting From Settlements With Taxing Authorities And Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsDecreaseResultingFromSettlementsWithTaxingAuthoritiesAndLapseOfApplicableStatuteOfLimitations	9100000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7700000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1200000	USD
CY2019Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	6300000	USD
CY2019	pwr	Number Of Shares Of Common Stock Received For Each Exchangeable Share NumberOfSharesOfCommonStockReceivedForEachExchangeableShare	1	shares
CY2019	pwr	Auto Liability Insurance Claims Deductible AutoLiabilityInsuranceClaimsDeductible	10000000.0	USD
CY2019	pwr	Health Care Deductible HealthCareDeductible	500000	USD
CY2019	pwr	Employers Liability Insurance Claims Deductible EmployersLiabilityInsuranceClaimsDeductible	1000000.0	USD
CY2019	pwr	Workers Compensation Insurance Claims Deductible WorkersCompensationInsuranceClaimsDeductible	5000000.0	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	157200000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	12574771000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	11894866000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	9848386000	USD
CY2019	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1699924000	USD
CY2018	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1635777000	USD
CY2017	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1356515000	USD
CY2019	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	989555000	USD
CY2018	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	913392000	USD
CY2017	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	842996000	USD
CY2019	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	78320000	USD
CY2018	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	79454000	USD
CY2017	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	49918000	USD
CY2019	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	437399000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	332973000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	333386000	USD
CY2019	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	432628000	USD
CY2018	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	330312000	USD
CY2017	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	330139000	USD
CY2019	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	2.97
CY2018	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	2.16
CY2017	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	2.08
CY2019	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	2.93
CY2018	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	2.14
CY2017	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	2.07
CY2016Q4	us-gaap	Goodwill Gross GoodwillGross	1642902000	USD
CY2016Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	39733000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	1603169000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	302408000	USD
CY2017	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-1278000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	57011000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	21312000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	1966432000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	97832000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	1868600000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	56337000	USD
CY2018	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	51000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-25109000	USD
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	1996362000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	96483000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1899879000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	110383000	USD
CY2019	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	1503000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	10910000	USD
CY2019Q4	us-gaap	Goodwill Gross GoodwillGross	2119101000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	96426000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	2022675000	USD
CY2017	pwr	Number Of Reporting Units Impacted By Impairment Charges NumberOfReportingUnitsImpactedByImpairmentCharges	2	Reporting_Unit
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	848620000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	437886000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	410734000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	649261000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	372081000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	277180000	USD
CY2019	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P7Y8M12D
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	851620000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	437886000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	413734000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	652261000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	372081000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	280180000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	62100000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	44000000.0	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32200000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	70455000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	67804000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	62848000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	54421000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	41437000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	113769000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	410734000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	402044000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	293346000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	314978000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145710000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152963000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	156124000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1824000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1263000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	154226000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157155000	shares
CY2019	pwr	Number Of Shares Of Common Stock Received For Each Exchangeable Share NumberOfSharesOfCommonStockReceivedForEachExchangeableShare	1	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1031000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147534000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2600000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2800000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2300000	shares
CY2019Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	798718000	USD
CY2018Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	786546000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5839000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4465000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11249000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7169000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	7690000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	5795000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	9398000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5839000	USD
CY2019Q4	pwr	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	14162000	USD
CY2019Q4	pwr	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	2636851000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2368472000	USD
CY2019Q4	pwr	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	1250197000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1092440000	USD
CY2019Q4	pwr	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1386654000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1276032000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	279107000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	316237000	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Liability Current BusinessCombinationContingentConsiderationLiabilityCurrent	77618000	USD
CY2018Q4	us-gaap	Business Combination Contingent Consideration Liability Current BusinessCombinationContingentConsiderationLiabilityCurrent	0	USD
CY2019Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	69307000	USD
CY2018Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	56552000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	58353000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	13094000	USD
CY2019Q4	pwr	Contract With Customer Liability Deferred Revenues Current ContractWithCustomerLiabilityDeferredRevenuesCurrent	33192000	USD
CY2018Q4	pwr	Contract With Customer Liability Deferred Revenues Current ContractWithCustomerLiabilityDeferredRevenuesCurrent	40083000	USD
CY2019Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	28721000	USD
CY2018Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	35736000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	107413000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	103402000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1489559000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1314520000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	1346290000	USD
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	1070299000	USD
CY2019Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	13275000	USD
CY2018Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	1523000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	957000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	934000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	1360522000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	1072756000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	68327000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	32224000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1292195000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1040532000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	6542000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	33422000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	68327000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	32224000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	74869000	USD
CY2018Q4	us-gaap	Debt Current DebtCurrent	65646000	USD
CY2019	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	2051714000	USD
CY2018	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1300401000	USD
CY2017	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	917895000	USD
CY2019	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	1553499000	USD
CY2018	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	914012000	USD
CY2017	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	613130000	USD
CY2019	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.038
CY2018	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.036
CY2017	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.027
CY2019Q4	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P10Y
CY2019Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P7Y
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1393000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	64000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	121767000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	837244000	USD
CY2019	us-gaap	Lease Cost LeaseCost	960468000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	309700000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	276200000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	284369000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1043000	USD
CY2019Q4	pwr	Operating And Finance Lease Right Of Use Asset OperatingAndFinanceLeaseRightOfUseAsset	285412000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	92475000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	440000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	196521000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	517000	USD
CY2019Q4	pwr	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	289953000	USD
CY2019Q4	pwr	Leases Option To Purchase Asset Failed Sale Leaseback LeasesOptionToPurchaseAssetFailedSaleLeaseback	11800000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	102848000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	469000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Next Twelve Months OperatingAndFinanceLeaseLiabilitiesPaymentsNextTwelveMonths	103317000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	75982000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	325000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Due Year Two OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearTwo	76307000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	51295000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	127000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Due Year Three OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearThree	51422000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	34153000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	60000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Due Year Four OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFour	34213000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	17952000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	21000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Due Year Five OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFive	17973000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	35019000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	8000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Due After Year Five OperatingAndFinanceLeaseLiabilitiesPaymentsDueAfterYearFive	35027000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	317249000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1010000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Payments Due OperatingAndFinanceLeaseLiabilitiesPaymentsDue	318259000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	28253000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	53000	USD
CY2019Q4	pwr	Operating And Finance Lease Liabilities Undiscounted Excess Amount OperatingAndFinanceLeaseLiabilitiesUndiscountedExcessAmount	28306000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	288996000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	957000	USD
CY2019Q4	pwr	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	289953000	USD
CY2019Q4	us-gaap	Short Term Lease Commitment Amount ShortTermLeaseCommitmentAmount	19900000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	124530000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	81189000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	55827000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	34337000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	21450000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	37217000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	354550000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y4M6D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M28D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.043
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.042
CY2019Q4	us-gaap	Operating Lease Residual Value Of Leased Asset OperatingLeaseResidualValueOfLeasedAsset	769800000	USD
CY2019Q4	pwr	Lessee Operating Lease Lease Not Yet Commenced Liability LesseeOperatingLeaseLeaseNotYetCommencedLiability	10300000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-70100000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit	-85300000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	15200000	USD
CY2018	pwr	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Remeasurement Income Tax Expense Benefit TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentRemeasurementIncomeTaxExpenseBenefit	-6300000	USD
CY2018Q4	pwr	Tax Cuts And Jobs Act Of2017 Foreign Tax Credits Valuation Allowance TaxCutsAndJobsActOf2017ForeignTaxCreditsValuationAllowance	43500000	USD
CY2017	pwr	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Entity Restructuring And Recapitalization Provisional Income Tax Benefit TaxCutsAndJobsActOf2017IncompleteAccountingEntityRestructuringAndRecapitalizationProvisionalIncomeTaxBenefit	26700000	USD
CY2017	pwr	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Acceleration Of Certain Deductions Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingAccelerationOfCertainDeductionsProvisionalIncomeTaxExpense	8500000	USD
CY2018	pwr	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Entity Restructuring And Recapitalization Income Tax Expense Benefit TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentEntityRestructuringAndRecapitalizationIncomeTaxExpenseBenefit	1800000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	550676000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	318635000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	291031000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	21611000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	139031000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	62726000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	572287000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	457666000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	353757000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	121214000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	50306000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	44695000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	35329000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26170000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	301000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	16848000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	23209000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	22666000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	173391000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	99685000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	67662000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7379000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	62482000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-36915000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1776000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4152000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	14951000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-13522000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	3644000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-10166000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7919000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	61974000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-32130000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	165472000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	161659000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35532000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	120180000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	96110000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	123815000	USD
CY2019	pwr	Effective Income Tax Rate Reconciliation Tax Credit Valuation Allowance EffectiveIncomeTaxRateReconciliationTaxCreditValuationAllowance	35761000	USD
CY2018	pwr	Effective Income Tax Rate Reconciliation Tax Credit Valuation Allowance EffectiveIncomeTaxRateReconciliationTaxCreditValuationAllowance	48862000	USD
CY2017	pwr	Effective Income Tax Rate Reconciliation Tax Credit Valuation Allowance EffectiveIncomeTaxRateReconciliationTaxCreditValuationAllowance	1455000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	23399000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	18504000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17920000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	13817000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	11949000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	13605000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-21565000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-2621000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-18413000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-3173000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-2619000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	3651000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-1863000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-1449000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-5095000	USD
CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	930000	USD
CY2018	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	578000	USD
CY2017	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	1354000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	-6295000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	-70129000	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	0	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	1504000	USD
CY2019	pwr	Effective Income Tax Rate Reconciliation Entity Restructuring And Recapitalization Efforts Amount EffectiveIncomeTaxRateReconciliationEntityRestructuringAndRecapitalizationEffortsAmount	0	USD
CY2018	pwr	Effective Income Tax Rate Reconciliation Entity Restructuring And Recapitalization Efforts Amount EffectiveIncomeTaxRateReconciliationEntityRestructuringAndRecapitalizationEffortsAmount	4424000	USD
CY2017	pwr	Effective Income Tax Rate Reconciliation Entity Restructuring And Recapitalization Efforts Amount EffectiveIncomeTaxRateReconciliationEntityRestructuringAndRecapitalizationEffortsAmount	26668000	USD
CY2019	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	0	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-154000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4220000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1751000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	165472000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	161659000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35532000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	208751000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	178090000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	73861000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	72244000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	60305000	USD
CY2019Q4	pwr	Deferred Tax Liabilities Customer Holdbacks DeferredTaxLiabilitiesCustomerHoldbacks	11882000	USD
CY2018Q4	pwr	Deferred Tax Liabilities Customer Holdbacks DeferredTaxLiabilitiesCustomerHoldbacks	44173000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	11384000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	21034000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1801000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	7247000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	379923000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	310849000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	78310000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	52406000	USD
CY2019Q4	pwr	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	74044000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	46621000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	43572000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	36372000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	28594000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	26045000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	20627000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Equity Method Investments DeferredTaxAssetsEquityMethodInvestments	16021000	USD
CY2019Q4	pwr	Deferred Tax Assets Deferred Tax Benefits On Unrecognized Tax Positions DeferredTaxAssetsDeferredTaxBenefitsOnUnrecognizedTaxPositions	16542000	USD
CY2018Q4	pwr	Deferred Tax Assets Deferred Tax Benefits On Unrecognized Tax Positions DeferredTaxAssetsDeferredTaxBenefitsOnUnrecognizedTaxPositions	13278000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3933000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1776000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	281867000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	176274000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	104178000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	67601000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	177689000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	108673000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	202234000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	202176000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	12545000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	16939000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	214779000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	219115000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	202234000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	202176000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	104200000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	67600000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	19300000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	36600000	USD
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	48300000	USD
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	4300000	USD
CY2019Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year One ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearOne	1300000	USD
CY2019Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Two ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearTwo	500000	USD
CY2019Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Three ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearThree	200000	USD
CY2019Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Four ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearFour	27000000.0	USD
CY2019Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Five ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearFive	900000	USD
CY2019Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Thereafter ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsThereafter	53700000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	52000000.0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41110000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36229000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35240000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7708000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6231000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7040000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1200000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	9377000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3372000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2870000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1171000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	3205000	USD
CY2017	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	5935000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7857000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8252000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40878000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41110000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36229000	USD
CY2019	pwr	Unrecognized Tax Benefits Decrease Resulting From Settlements With Taxing Authorities And Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsDecreaseResultingFromSettlementsWithTaxingAuthoritiesAndLapseOfApplicableStatuteOfLimitations	9100000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7900000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8300000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40878000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41110000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36229000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	40695000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	40977000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	35561000	USD
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CY2018Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	5459000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	5368000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	14000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	631000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	631000	USD
CY2019	pwr	Income Tax Examination Penalties And Interest Expense Income IncomeTaxExaminationPenaltiesAndInterestExpenseIncome	800000	USD
CY2018	pwr	Income Tax Examination Penalties And Interest Expense Income IncomeTaxExaminationPenaltiesAndInterestExpenseIncome	100000	USD
CY2017	pwr	Income Tax Examination Penalties And Interest Expense Income IncomeTaxExaminationPenaltiesAndInterestExpenseIncome	-200000	USD
CY2019	pwr	Number Of Shares Of Common Stock Received For Each Exchangeable Share NumberOfSharesOfCommonStockReceivedForEachExchangeableShare	1	shares
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	376000	shares
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	13917000	shares
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	451290000	USD
CY2017	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1382000	shares
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	50000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20100000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	443200000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50000000.0	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4800000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2700000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3200000	USD
CY2019Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet	12000000.0	USD
CY2018Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet	9600000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2500000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	4000000.0	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2000000.0	USD
CY2018	us-gaap	Increase Decrease In Notes Receivables IncreaseDecreaseInNotesReceivables	-1400000	USD
CY2017	us-gaap	Increase Decrease In Notes Receivables IncreaseDecreaseInNotesReceivables	-500000	USD
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2019Q4	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7371000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
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CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2019Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6233000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2019Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5896000	USD
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2018Q4	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5838000	USD
CY2019Q4	us-gaap	Multiemployer Plans Collective Bargaining Arrangement Percentage Of Participants MultiemployerPlansCollectiveBargainingArrangementPercentageOfParticipants	0.35
CY2019	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	134197000	USD
CY2018	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	126191000	USD
CY2017	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	110082000	USD
CY2019	pwr	Defined Contribution Plan Employer Matching Contribution Percent Of Match By Employer Up To Specific Percentage DefinedContributionPlanEmployerMatchingContributionPercentOfMatchByEmployerUpToSpecificPercentage	1
CY2019	pwr	Defined Contribution Plan Employer Matching Contribution Percentof Match By Employer Of Each Employee Who Contributes To Plan DefinedContributionPlanEmployerMatchingContributionPercentofMatchByEmployerOfEachEmployeeWhoContributesToPlan	0.50
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	41400000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	33400000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	26300000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1100000	USD
CY2019Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	47300000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	33400000	USD
CY2019Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	45800000	USD
CY2018Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	33500000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	139114000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-17858000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	156805000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
CY2019	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	Divisions
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12112153000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11171423000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9466478000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	554874000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	540269000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	378849000	USD
CY2019	us-gaap	Depreciation Depreciation	218107000	USD
CY2018	us-gaap	Depreciation Depreciation	202519000	USD
CY2017	us-gaap	Depreciation Depreciation	183808000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	214580000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	475919000	USD
CY2017	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	425313000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	12317000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	92838000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-15999000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-52168000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	28131000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-14110000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	60475000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	40187000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	32079000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	39419000	USD
CY2018	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	247897000	USD
CY2017	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	28547000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	174230000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-23000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	135250000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	11332000	USD
CY2018	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	400533000	USD
CY2017	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	241764000	USD
CY2019	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	87000000	USD
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CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164798000	USD
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CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	112183000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169745000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	83256000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143775000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	114410000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	119357000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	64000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1835000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	96550000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	691000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	64805000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	34935000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	19373000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	116467000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	112895000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	112335000	USD
CY2019	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	7174000	USD
CY2018	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	5209000	USD
CY2017	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	9845000	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	6400000	USD
CY2017	pwr	Noncash Or Part Noncash Exchange Aggregate Value Given NoncashOrPartNoncashExchangeAggregateValueGiven	7100000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2807259000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2839199000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3352895000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3112800000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	363981000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	319505000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	473445000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	443321000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	121035000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	28459000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	137022000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	120299000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	120488000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	27344000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	136068000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	118144000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.83
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.19
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.93
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.81
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.82
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.19
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.92
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.80
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2417576000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2656348000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2985281000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3112218000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	301048000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	333371000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	425830000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	419715000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	38611000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	74706000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	124899000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	57791000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	37614000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	74365000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	124551000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	56816000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.24
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CY2019Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	13900000	USD
CY2019Q4	pwr	Asset Impairment Charges Net Of Tax AssetImpairmentChargesNetOfTax	10500000	USD
CY2018Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	49400000	USD
CY2018Q4	pwr	Asset Impairment Charges Net Of Tax AssetImpairmentChargesNetOfTax	36500000	USD
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Files In Submission

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$PWR
QUANTA SERVICES, INC. Stock $pwr

2019 Q4 Form 10-K Financial Statement

#000105091520000020 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR QUANTA SERVICES, INC. Stock $pwr

2019 Q4 Form 10-K Financial Statement

#000105091520000020 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR
QUANTA SERVICES, INC. Stock $pwr