$PWR
QUANTA SERVICES, INC. Stock $pwr

$pwr Overview Financials Valuation SEC Filings Company Website

2019 Q3 Form 10-Q Financial Statement

#000105091519000081 Filed on November 01, 2019

Income Statement

Concept	2019 Q3	2018 Q4	2018 Q3
Revenue	$3.353B	$3.112B	$2.985B
YoY Change	12.31%	25.56%	14.41%
Cost Of Revenue	$2.879B	$2.693B	$2.559B
YoY Change	12.5%	24.9%	13.32%
Gross Profit	$473.4M	$419.7M	$425.8M
YoY Change	11.18%	29.99%	21.45%
Gross Profit Margin	14.12%	13.49%	14.26%
Selling, General & Admin	$245.0M	$212.0M	$224.0M
YoY Change	9.36%	2.76%	11.34%
% of Gross Profit	51.75%	50.51%	52.61%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$55.56M	$64.70M	$51.54M
YoY Change	7.8%	11.17%	6.44%
% of Gross Profit	11.74%	15.42%	12.1%
Operating Expenses	$245.0M	$224.4M	$224.0M
YoY Change	9.36%	3.74%	11.34%
Operating Profit	$209.4M	$195.3M	$192.6M
YoY Change	8.74%	83.26%	37.12%
Interest Expense	$18.37M	-$11.30M	$9.219M
YoY Change	99.25%	73.85%	52.18%
% of Operating Profit	8.77%	-5.79%	4.79%
Other Income/Expense, Net	$717.0K	-$5.700M	-$15.50M
YoY Change	-104.63%	-242.5%	553.65%
Pretax Income	$191.9M	$128.8M	$168.2M
YoY Change	14.13%	180.61%	27.21%
Income Tax	$54.91M	$77.30M	$43.27M
% Of Pretax Income	28.61%	60.02%	25.73%
Net Earnings	$136.1M	$57.79M	$124.6M
YoY Change	9.25%	-50.0%	38.62%
Net Earnings / Revenue	4.06%	1.86%	4.17%
Basic Earnings Per Share	$0.93		$0.82
Diluted Earnings Per Share	$0.92	$375.4K	$0.81
COMMON SHARES
Basic Shares Outstanding	145.9M shares		152.6M shares
Diluted Shares Outstanding	147.4M shares		153.7M shares

Balance Sheet

Concept	2019 Q3	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$80.00M	$78.70M	$113.5M
YoY Change	-29.52%	-43.09%	24.04%
Cash & Equivalents	$80.04M	$78.69M	$113.5M
Short-Term Investments
Other Short-Term Assets	$313.6M	$208.1M	$198.3M
YoY Change	58.14%	23.57%	34.62%
Inventory	$67.04M	$107.7M	$94.67M
Prepaid Expenses
Receivables	$3.188B	$2.355B	$2.292B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.302B	$3.326B	$3.378B
YoY Change	27.35%	15.9%	14.58%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.390B	$1.276B	$1.351B
YoY Change	2.91%	-0.98%	7.52%
Goodwill	$2.003B	$1.900B	$1.912B
YoY Change	4.75%	1.67%	-1.29%
Intangibles	$431.6M	$280.2M	$284.4M
YoY Change	51.74%	6.46%	3.42%
Long-Term Investments
YoY Change
Other Assets	$449.2M	$293.6M	$265.6M
YoY Change	69.13%	54.63%	18.85%
Total Long-Term Assets	$4.563B	$3.750B	$3.813B
YoY Change	19.67%	3.86%	3.28%
TOTAL ASSETS
Total Short-Term Assets	$4.302B	$3.326B	$3.378B
Total Long-Term Assets	$4.563B	$3.750B	$3.813B
Total Assets	$8.865B	$7.076B	$7.191B
YoY Change	23.28%	9.19%	8.3%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.648B	$1.315B	$1.341B
YoY Change	22.91%	24.3%	10.39%
Accrued Expenses	$93.50M
YoY Change
Deferred Revenue	$540.2M	$426.0M
YoY Change		-1.71%
Short-Term Debt	$7.622M	$33.42M	$20.34M
YoY Change	-62.53%
Long-Term Debt Due	$68.13M	$32.22M	$2.467M
YoY Change	2661.61%	2541.31%	-12.02%
Total Short-Term Liabilities	$2.358B	$1.806B	$1.816B
YoY Change	29.81%	21.05%	14.05%
LONG-TERM LIABILITIES
Long-Term Debt	$1.810B	$1.041B	$952.9M
YoY Change	90.0%	55.14%	25.35%
Other Long-Term Liabilities	$310.1M	$404.6M	$388.4M
YoY Change	-20.15%	18.17%	12.47%
Total Long-Term Liabilities	$2.121B	$1.445B	$1.341B
YoY Change	58.1%	42.64%	21.32%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.358B	$1.806B	$1.816B
Total Long-Term Liabilities	$2.121B	$1.445B	$1.341B
Total Liabilities	$4.956B	$3.470B	$3.367B
YoY Change	47.19%	29.27%	15.7%
SHAREHOLDERS EQUITY
Retained Earnings	$2.743B	$2.477B	$2.426B
YoY Change	13.1%	13.06%	16.77%
Common Stock	$2.015B	$1.967B	$1.956B
YoY Change	3.02%	4.13%	4.14%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$586.8M	$554.4M	$321.1M
YoY Change	82.74%	548.84%	796.42%
Treasury Stock Shares	17.07M shares	16.23M shares	8.560M shares
Shareholders Equity	$3.907B	$3.604B	$3.823B
YoY Change
Total Liabilities & Shareholders Equity	$8.865B	$7.076B	$7.191B
YoY Change	23.28%	9.19%	8.3%

Cashflow Statement

Concept	2019 Q3	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$136.1M	$57.79M	$124.6M
YoY Change	9.25%	-50.0%	38.62%
Depreciation, Depletion And Amortization	$55.56M	$64.70M	$51.54M
YoY Change	7.8%	11.17%	6.44%
Cash From Operating Activities	$91.17M	$137.2M	$39.10M
YoY Change	133.14%	-30.43%	-77.47%
INVESTING ACTIVITIES
Capital Expenditures	$66.24M	-$82.30M	$74.14M
YoY Change	-10.65%	7.72%	17.69%
Acquisitions	$329.8M		$48.68M
YoY Change	577.51%		-86.2%
Other Investing Activities	-$325.5M	$1.300M	$18.51M
YoY Change	-1858.51%	-98.14%	-2838.17%
Cash From Investing Activities	-$391.8M	-$81.00M	-$136.4M
YoY Change	187.18%	1146.15%	-69.79%
FINANCING ACTIVITIES
Cash Dividend Paid	$5.803M		$0.00
YoY Change
Common Stock Issuance & Retirement, Net	$0.00		$26.80M
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$307.1M	-89.50M	$90.96M
YoY Change	237.62%	-37.06%	-66.33%
NET CHANGE
Cash From Operating Activities	$91.17M	137.2M	$39.10M
Cash From Investing Activities	-$391.8M	-81.00M	-$136.4M
Cash From Financing Activities	$307.1M	-89.50M	$90.96M
Net Change In Cash	$6.394M	-33.30M	-$6.563M
YoY Change	-197.42%	-168.66%	-11.0%
FREE CASH FLOW
Cash From Operating Activities	$91.17M	$137.2M	$39.10M
Capital Expenditures	$66.24M	-$82.30M	$74.14M
Free Cash Flow	$24.92M	$219.5M	-$35.04M
YoY Change	-171.13%	-19.77%	-131.69%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Entity Central Index Key EntityCentralIndexKey	0001050915
	pwr	General Liability Insurance Claims Deductible GeneralLiabilityInsuranceClaimsDeductible	10000000	USD
CY2019Q3	pwr	Leases Option To Purchase Liability Failed Sale Leaseback LeasesOptionToPurchaseLiabilityFailedSaleLeaseback	9800000	USD
CY2018Q3	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	0	USD
	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	0	USD
CY2019Q3	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	17000	USD
	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	28000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1092440000	USD
CY2019Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1203887000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5839000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	7683000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	16229146	shares
CY2019Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	17073127	shares
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2019-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-13831
	dei	Entity Registrant Name EntityRegistrantName	Quanta Services, Inc.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2851603
	dei	Entity Address Address Line1 EntityAddressAddressLine1	2800 Post Oak Boulevard, Suite 2600
	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77056
	dei	City Area Code CityAreaCode	713
	dei	Local Phone Number LocalPhoneNumber	629-7600
	dei	Security12b Title Security12bTitle	Common Stock, $0.00001 par value
	dei	Trading Symbol TradingSymbol	PWR
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	80044000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
CY2019Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3188328000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2354737000	USD
CY2019Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	652915000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	576891000	USD
CY2019Q3	us-gaap	Inventory Net InventoryNet	67039000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	107732000	USD
CY2019Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	313601000	USD
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CY2019Q3	us-gaap	Assets Current AssetsCurrent	4301927000	USD
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CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1390209000	USD
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CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	289267000	USD
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CY2019Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	431563000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	280180000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	2002909000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1899879000	USD
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CY2018Q4	us-gaap	Assets Assets	7075787000	USD
CY2019Q3	us-gaap	Debt Current DebtCurrent	75751000	USD
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CY2019Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1648079000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1314520000	USD
CY2019Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	540187000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	425961000	USD
CY2019Q3	us-gaap	Liabilities Current LiabilitiesCurrent	2357523000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1806127000	USD
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1810480000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1040532000	USD
CY2019Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	197896000	USD
CY2019Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	279858000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	219115000	USD
CY2019Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	310129000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	404560000	USD
CY2019Q3	us-gaap	Liabilities Liabilities	4955886000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	3470334000	USD
CY2019Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2014838000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1967354000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3604159000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3909207000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3605453000	USD
CY2019Q3	us-gaap	Minority Interest MinorityInterest	1801000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1294000	USD
CY2019Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2743498000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2477291000	USD
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-264113000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-286048000	USD
CY2019Q3	us-gaap	Treasury Stock Value TreasuryStockValue	586819000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	554440000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	3907406000	USD
CY2019Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8865093000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7075787000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3352895000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2985281000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8999353000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8059205000	USD
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2879450000	USD
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	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7842422000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6998956000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	473445000	USD
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	us-gaap	Gross Profit GrossProfit	1156931000	USD
	us-gaap	Gross Profit GrossProfit	1060249000	USD
CY2019Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	245010000	USD
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	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	700862000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	645566000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15264000	USD
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	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	40544000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	31535000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-3777000	USD
CY2018Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	1394000	USD
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	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	7673000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	209394000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	192561000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	407461000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	1128000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	390821000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	18369000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	9219000	USD
	us-gaap	Interest Expense InterestExpense	48066000	USD
	us-gaap	Interest Expense InterestExpense	25175000	USD
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CY2018Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	322000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	762000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	717000	USD
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	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	66197000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-37899000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	191928000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	168166000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	426354000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	328875000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54906000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43267000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	139838000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	90659000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	137022000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	124899000	USD
	us-gaap	Profit Loss ProfitLoss	286516000	USD
	us-gaap	Profit Loss ProfitLoss	238216000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	954000	USD
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	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2616000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1686000	USD
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CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	124551000	USD
	us-gaap	Net Income Loss NetIncomeLoss	283900000	USD
	us-gaap	Net Income Loss NetIncomeLoss	236530000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.95
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.92
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.81
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.93
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145913000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152562000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145654000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154087000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147438000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	153687000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147074000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155198000	shares
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.12
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2019Q3	us-gaap	Profit Loss ProfitLoss	137022000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	124899000	USD
	us-gaap	Profit Loss ProfitLoss	286516000	USD
	us-gaap	Profit Loss ProfitLoss	238216000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-12778000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	10838000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	21976000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-34299000	USD
CY2019Q3	pwr	Other Comprehensive Income Loss Other Netof Tax OtherComprehensiveIncomeLossOtherNetofTax	-6000	USD
CY2018Q3	pwr	Other Comprehensive Income Loss Other Netof Tax OtherComprehensiveIncomeLossOtherNetofTax	0	USD
	pwr	Other Comprehensive Income Loss Other Netof Tax OtherComprehensiveIncomeLossOtherNetofTax	-41000	USD
	pwr	Other Comprehensive Income Loss Other Netof Tax OtherComprehensiveIncomeLossOtherNetofTax	0	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12784000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10838000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	21935000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-34299000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	124238000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	135737000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	308451000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	203917000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	954000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	348000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2616000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1686000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	123284000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	135389000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	305835000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	202231000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	137022000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	124899000	USD
	us-gaap	Profit Loss ProfitLoss	286516000	USD
	us-gaap	Profit Loss ProfitLoss	238216000	USD
CY2019Q3	us-gaap	Depreciation Depreciation	55562000	USD
CY2018Q3	us-gaap	Depreciation Depreciation	51543000	USD
	us-gaap	Depreciation Depreciation	161589000	USD
	us-gaap	Depreciation Depreciation	150296000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15264000	USD
CY2018Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10623000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	40544000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	31535000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-3777000	USD
CY2018Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	1394000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-8064000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	7673000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1931000	USD
CY2018Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-17835000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	64078000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-42976000	USD
CY2019Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	466000	USD
CY2018Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	287000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1282000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	863000	USD
CY2019Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	992000	USD
CY2018Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	340000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3462000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1605000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-1383000	USD
CY2018Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	168000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-2603000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	237000	USD
CY2019Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	773000	USD
CY2018Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2151000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4012000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3135000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4167000	USD
CY2018Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7391000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	48298000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6114000	USD
CY2019Q3	us-gaap	Share Based Compensation ShareBasedCompensation	13584000	USD
CY2018Q3	us-gaap	Share Based Compensation ShareBasedCompensation	11631000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	41080000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	39803000	USD
CY2019Q3	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2018Q3	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	3138000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
CY2019Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	137908000	USD
CY2018Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	170572000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	623557000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	285016000	USD
CY2019Q3	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	91167000	USD
CY2018Q3	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	39104000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-100247000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	221617000	USD
CY2019Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	66244000	USD
CY2018Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	74144000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	207645000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	222735000	USD
CY2019Q3	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	4854000	USD
CY2018Q3	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5642000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	24247000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	18635000	USD
CY2019Q3	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	490000	USD
CY2018Q3	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	145000	USD
	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	501000	USD
	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	510000	USD
CY2019Q3	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	329832000	USD
CY2018Q3	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	48683000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	385165000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	94917000	USD
CY2019Q3	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1065000	USD
CY2018Q3	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	19391000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	38995000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	20960000	USD
CY2019Q3	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	USD
CY2018Q3	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	784000	USD
CY2019Q3	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2018Q3	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	67000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	3000000	USD
CY2019Q3	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-391797000	USD
CY2018Q3	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-136431000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-607124000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-321683000	USD
CY2019Q3	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	2118501000	USD
CY2018Q3	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	855831000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	4834014000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	2893224000	USD
CY2019Q3	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1789924000	USD
CY2018Q3	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	743162000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	4038762000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	2605092000	USD
CY2019Q3	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1356000	USD
CY2018Q3	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	336000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1839000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1067000	USD
CY2019Q3	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-11171000	USD
CY2018Q3	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	7124000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-27087000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	20066000	USD
CY2019Q3	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2036000	USD
CY2018Q3	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2036000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019Q3	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	489000	USD
CY2018Q3	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1275000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	2109000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	2942000	USD
CY2019Q3	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	611000	USD
CY2018Q3	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	464000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	15955000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	14668000	USD
CY2019Q3	us-gaap	Payments Of Dividends PaymentsOfDividends	5803000	USD
CY2018Q3	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	17385000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2019Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	26755000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20092000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	216661000	USD
CY2019Q3	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	307111000	USD
CY2018Q3	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	90963000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	708749000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	72860000	USD
CY2019Q3	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-87000	USD
CY2018Q3	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-199000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-123000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1605000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6394000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-6563000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1255000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-25601000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78117000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	124737000	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
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	84511000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118174000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	84511000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118174000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3605453000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	18847000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1901000	USD
CY2019Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	11953000	USD
CY2019Q1	us-gaap	Dividends Cash DividendsCash	5896000	USD
CY2019Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	528000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	121035000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3725057000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	15872000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	14196000	USD
CY2019Q2	us-gaap	Dividends Cash DividendsCash	6233000	USD
CY2019Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1092000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	28459000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3776259000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-12784000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1791000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	12972000	USD
CY2019Q3	us-gaap	Dividends Cash DividendsCash	5564000	USD
CY2019Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	489000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	137022000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3909207000	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	-1757000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-25014000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	13549000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1302000	USD
CY2018Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	173913000	USD
CY2018Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	980000	USD
CY2018Q1	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	462000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	38611000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3646965000	USD
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-20123000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13059000	USD
CY2018Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	19993000	USD
CY2018Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	687000	USD
CY2018Q2	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	462000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	74706000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3693465000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10838000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	9333000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	11187000	USD
CY2018Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	23751000	USD
CY2018Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1275000	USD
CY2018Q3	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	462000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	124899000	USD
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3824234000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
	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 GAAP 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>
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4400000000	USD
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.655
CY2019Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2019Q3	pwr	Revenue Recognized Related To Unapproved Change Orders And Claims RevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims	150400000	USD
CY2018Q4	pwr	Revenue Recognized Related To Unapproved Change Orders And Claims RevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims	121800000	USD
CY2019Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate	-29200000	USD
CY2019Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.062
	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.05
CY2018Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate	-30700000	USD
CY2018Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.072
	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.05
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3352895000	USD
CY2019Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2985281000	USD
CY2018Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8999353000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8059205000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3352895000	USD
CY2019Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2985281000	USD
CY2018Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8999353000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8059205000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2019Q3	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.513
CY2018Q3	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.586
	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.508
	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.560
CY2019Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	652915000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	576891000	USD
CY2019Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	540187000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	425961000	USD
	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	28400000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	359000000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	7700000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5800000	USD
CY2019Q3	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	55600000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	25900000	USD
CY2019Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	732700000	USD
CY2018Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	434900000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	80044000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
CY2019Q3	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	37700000	USD
CY2018Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	37200000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	80044000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	division
CY2019Q3	pwr	Decrease In Fair Value Of Reporting Units Considered For Impairment Calculation DecreaseInFairValueOfReportingUnitsConsideredForImpairmentCalculation	0.10
CY2019Q3	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	13700000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	39100000	USD
	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-2000000.0	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	7500000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5500000	USD
	pwr	Number Of Shares Of Common Stock Received For Each Exchangeable Share NumberOfSharesOfCommonStockReceivedForEachExchangeableShare	1	shares
	pwr	Employers Liability Insurance Claims Deductible EmployersLiabilityInsuranceClaimsDeductible	1000000.0	USD
	pwr	Workers Compensation Insurance Claims Deductible WorkersCompensationInsuranceClaimsDeductible	5000000.0	USD
	pwr	Auto Liability Insurance Claims Deductible AutoLiabilityInsuranceClaimsDeductible	10000000.0	USD
	pwr	Health Care Deductible HealthCareDeductible	500000	USD
CY2019Q3	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	153000000.0	USD
CY2019Q3	pwr	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Tangible Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleAssets	111800000	USD
CY2019	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	190800000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	97300000	USD
CY2019Q2	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	3100000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3446437000	USD
CY2018Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3149694000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	9391582000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	8560960000	USD
CY2019Q3	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	495994000	USD
CY2018Q3	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	463109000	USD
	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1246605000	USD
	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1175470000	USD
CY2019Q3	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	250187000	USD
CY2018Q3	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	235637000	USD
	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	725801000	USD
	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	682342000	USD
CY2019Q3	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	18918000	USD
CY2018Q3	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	18329000	USD
	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	55503000	USD
	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	59463000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	145602000	USD
CY2018Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	135311000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	316941000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	267108000	USD
CY2019Q3	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	144648000	USD
CY2018Q3	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	134963000	USD
	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	314325000	USD
	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	265422000	USD
CY2019Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.99
CY2018Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.88
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	2.16
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.72
CY2019Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.98
CY2018Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.88
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2.14
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.71
	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	division
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
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	97343000	USD
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	1503000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	4184000	USD
CY2019Q3	us-gaap	Goodwill Gross GoodwillGross	2098858000	USD
CY2019Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	95949000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	2002909000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	842716000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	124551000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	283900000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	414153000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	428563000	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
	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P7Y9M18D
CY2019Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	845716000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	414153000	USD
CY2019Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	431563000	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
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15300000	USD
CY2018Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10600000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	40500000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	31500000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	21654000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	68933000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	66327000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	62555000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	54316000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	154778000	USD
CY2019Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	428563000	USD
CY2018Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1125000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145654000	shares
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	236530000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145913000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	152562000	shares
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	136068000	USD
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1525000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154087000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1420000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1111000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147438000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	153687000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147074000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155198000	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2800000	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2900000	shares
CY2018Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2600000	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	2500000	shares
CY2019Q3	us-gaap	Line Of Credit LineOfCredit	1865930000	USD
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	1070299000	USD
CY2019Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	11190000	USD
CY2018Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	1523000	USD
CY2019Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	1489000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	934000	USD
CY2019Q3	us-gaap	Long Term Debt LongTermDebt	1878609000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	1072756000	USD
CY2019Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	68129000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	32224000	USD
CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1810480000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1040532000	USD
CY2019Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	7622000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	33422000	USD
CY2019Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	68129000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	32224000	USD
CY2019Q3	us-gaap	Debt Current DebtCurrent	75751000	USD
CY2018Q4	us-gaap	Debt Current DebtCurrent	65646000	USD
CY2019Q3	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1987215000	USD
CY2018Q3	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1003581000	USD
	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1987215000	USD
	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1053598000	USD
CY2019Q3	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	1721843000	USD
CY2018Q3	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	899323000	USD
	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	1505376000	USD
	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	836448000	USD
CY2019Q3	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0386
CY2018Q3	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0370
	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0388
	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0357
CY2019Q3	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P10Y
CY2019Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	320000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	976000	USD
CY2019Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	15000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	54000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	30543000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	91278000	USD
CY2019Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	209717000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	608028000	USD
CY2019Q3	us-gaap	Variable Lease Cost VariableLeaseCost	2290000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	11878000	USD
CY2019Q3	us-gaap	Lease Cost LeaseCost	242885000	USD
	us-gaap	Lease Cost LeaseCost	712214000	USD
CY2018Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	77400000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	229200000	USD
CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	289267000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1079000	USD
CY2019Q3	pwr	Operating And Finance Lease Right Of Use Asset OperatingAndFinanceLeaseRightOfUseAsset	290346000	USD
CY2019Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	93506000	USD
CY2019Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	893000	USD
CY2019Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	197896000	USD
CY2019Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	596000	USD
CY2019Q3	pwr	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	292891000	USD
CY2019Q3	pwr	Leases Option To Purchase Asset Failed Sale Leaseback LeasesOptionToPurchaseAssetFailedSaleLeaseback	9800000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	28398000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	388000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Remainder Of Fiscal Year OperatingAndFinanceLeaseLiabilitiesPaymentsRemainderOfFiscalYear	28786000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	96874000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	627000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Two OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearTwo	97501000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	70524000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	342000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Three OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearThree	70866000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	46867000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	119000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Four OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFour	46986000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	30503000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	50000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Five OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFive	30553000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	46953000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	26000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Due After Year Five OperatingAndFinanceLeaseLiabilitiesPaymentsDueAfterYearFive	46979000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	320119000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1552000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Payments Due OperatingAndFinanceLeaseLiabilitiesPaymentsDue	321671000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	28717000	USD
CY2019Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	63000	USD
CY2019Q3	pwr	Operating And Finance Lease Liabilities Undiscounted Excess Amount OperatingAndFinanceLeaseLiabilitiesUndiscountedExcessAmount	28780000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	291402000	USD
CY2019Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	1489000	USD
CY2019Q3	pwr	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	292891000	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
	pwr	Number Of Businesses Acquired With Preferred Stock Issued To Voting Trusts NumberOfBusinessesAcquiredWithPreferredStockIssuedToVotingTrusts	2	Acquisition
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y4M9D
CY2019Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y3M29D
CY2019Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.043
CY2019Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.042
CY2019Q3	us-gaap	Operating Lease Residual Value Of Leased Asset OperatingLeaseResidualValueOfLeasedAsset	754100000	USD
CY2019Q3	pwr	Lessee Operating Lease Lease Not Yet Commenced Liability LesseeOperatingLeaseLeaseNotYetCommencedLiability	9000000.0	USD
	pwr	Number Of Shares Of Common Stock Received For Each Exchangeable Share NumberOfSharesOfCommonStockReceivedForEachExchangeableShare	1	shares
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.04
CY2019Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2019Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	0	USD
CY2019Q2	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2019Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	0	USD
CY2019Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	376000	shares
CY2019Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	11953000	USD
CY2018Q4	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	7652000	shares
CY2018Q4	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	233633000	USD
CY2018Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	701000	shares
CY2018Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	23751000	USD
CY2018Q2	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	595000	shares
CY2018Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	19993000	USD
CY2018Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4969000	shares
CY2018Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	173913000	USD
CY2019Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	26800000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20100000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	216700000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000.0	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2600000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1700000	USD
CY2019Q3	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet	10200000	USD
CY2018Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet	9600000	USD
CY2019Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	500000	USD
CY2018Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1300000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2100000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2900000	USD
CY2018Q3	us-gaap	Increase Decrease In Notes Receivables IncreaseDecreaseInNotesReceivables	-500000	USD
	us-gaap	Increase Decrease In Notes Receivables IncreaseDecreaseInNotesReceivables	-1400000	USD
CY2019Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5564000	USD
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
CY2019Q3	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	13700000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	division
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3352895000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2985281000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8999353000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8059205000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	209394000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	192561000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	407461000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	390821000	USD
CY2019Q3	us-gaap	Depreciation Depreciation	55562000	USD
CY2018Q3	us-gaap	Depreciation Depreciation	51543000	USD
	us-gaap	Depreciation Depreciation	161589000	USD
	us-gaap	Depreciation Depreciation	150296000	USD
CY2019Q3	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	479573000	USD
CY2018Q3	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	169041000	USD
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	695364000	USD
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	345842000	USD
CY2019Q3	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-34016000	USD
CY2018Q3	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	125878000	USD
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	67882000	USD
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	188996000	USD
CY2019Q3	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1511000	USD
CY2018Q3	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8436000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-43598000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	13841000	USD
CY2019Q3	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8048000	USD
CY2018Q3	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-12991000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	110622000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	45002000	USD
CY2019Q3	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	250608000	USD
CY2018Q3	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	170469000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	228473000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	294259000	USD
CY2019Q3	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	68535000	USD
CY2018Q3	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-48386000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	112545000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	22676000	USD
CY2019Q3	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	4957000	USD
CY2018Q3	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2291000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	134305000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	8270000	USD
CY2019Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	137908000	USD
CY2018Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	170572000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	623557000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	285016000	USD
	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	87000000	USD
	pwr	Payments For On Demand Performance Bonds PaymentsForOnDemandPerformanceBonds	25000000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	80044000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	113524000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	84511000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118174000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	73356000	USD
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	120357000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78117000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	124737000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78687000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138285000	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
CY2019Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	29908000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	89175000	USD
CY2019Q3	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	15000	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	53000	USD
CY2019Q3	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	411000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1523000	USD
CY2019Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	32701000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	76107000	USD
CY2019Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	10000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	631000	USD
CY2019Q3	us-gaap	Interest Paid Net InterestPaidNet	16312000	USD
CY2018Q3	us-gaap	Interest Paid Net InterestPaidNet	9279000	USD
	us-gaap	Interest Paid Net InterestPaidNet	45469000	USD
	us-gaap	Interest Paid Net InterestPaidNet	24011000	USD
CY2019Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	40745000	USD
CY2018Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	38445000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	109271000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	91000000	USD
CY2019Q3	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	4730000	USD
CY2018Q3	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	1207000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	6058000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	3570000	USD
	pwr	Noncash Or Part Noncash Acquisition Land Acquired NoncashOrPartNoncashAcquisitionLandAcquired	6400000	USD

Files In Submission

Name	View Source	Status
0001050915-19-000081-index-headers.html	Edgar Link	pending
0001050915-19-000081-index.html	Edgar Link	pending
0001050915-19-000081.txt	Edgar Link	pending
0001050915-19-000081-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
pwr-20190930.xsd	Edgar Link	pending
pwr-20190930_cal.xml	Edgar Link	unprocessable
pwr-20190930_def.xml	Edgar Link	unprocessable
pwr-20190930_lab.xml	Edgar Link	unprocessable
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pwr9-30x201910xq_htm.xml	Edgar Link	completed
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pwr9-30x2019ex104.htm	Edgar Link	pending
pwr9-30x2019ex311.htm	Edgar Link	pending
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$PWR
QUANTA SERVICES, INC. Stock $pwr

2019 Q3 Form 10-Q Financial Statement

#000105091519000081 Filed on November 01, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR QUANTA SERVICES, INC. Stock $pwr

2019 Q3 Form 10-Q Financial Statement

#000105091519000081 Filed on November 01, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR
QUANTA SERVICES, INC. Stock $pwr