$PWR
QUANTA SERVICES, INC. Stock $pwr

$pwr Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000105091521000114 Filed on November 04, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q4
Revenue	$3.924B	$3.353B	$2.912B
YoY Change	34.73%	11.03%	-6.44%
Cost Of Revenue	$3.326B	$2.819B	$2.446B
YoY Change	35.94%	12.18%	-8.36%
Gross Profit	$598.0M	$534.7M	$465.9M
YoY Change	28.35%	5.35%	5.09%
Gross Profit Margin	15.24%	15.94%	16.0%
Selling, General & Admin	$367.6M	$274.8M	$280.0M
YoY Change	31.3%	9.65%	9.76%
% of Gross Profit	61.48%	51.4%	60.1%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$169.0M	$61.62M	$81.40M
YoY Change	107.61%	9.55%	4.23%
% of Gross Profit	28.26%	11.52%	17.47%
Operating Expenses	$475.7M	$274.8M	$301.3M
YoY Change	57.88%	9.65%	8.93%
Operating Profit	$122.3M	$248.1M	$164.6M
YoY Change	-25.7%	2.42%	-1.27%
Interest Expense	-$4.764M	$17.26M	-$4.900M
YoY Change	-2.78%	56.2%	-73.8%
% of Operating Profit	-3.9%	6.96%	-2.98%
Other Income/Expense, Net	$6.853M	$6.089M	$6.100M
YoY Change	12.34%	107.74%	-48.31%
Pretax Income	$121.0M	$237.0M	$171.7M
YoY Change	-29.55%	1.2%	17.68%
Income Tax	$14.66M	$61.58M	-$200.0K
% Of Pretax Income	12.12%	25.99%	-0.12%
Net Earnings	$104.8M	$174.4M	$170.1M
YoY Change	-38.39%	7.03%	41.4%
Net Earnings / Revenue	2.67%	5.2%	5.84%
Basic Earnings Per Share		$1.25
Diluted Earnings Per Share	$707.4K	$1.21	$1.165M
COMMON SHARES
Basic Shares Outstanding	142.5M shares	140.0M shares	138.9M shares
Diluted Shares Outstanding		144.3M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$229.1M	$1.696B	$184.6M
YoY Change	24.1%	682.02%	12.01%
Cash & Equivalents	$229.1M	$1.696B	$184.6M
Short-Term Investments
Other Short-Term Assets	$215.1M	$183.5M	$183.4M
YoY Change	17.26%	-4.17%	-29.81%
Inventory	$84.66M	$61.96M	$50.47M
Prepaid Expenses
Receivables	$3.400B	$3.002B	$2.716B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.733B	$5.704B	$3.588B
YoY Change	31.89%	55.13%	-6.33%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.160B	$1.834B	$1.818B
YoY Change	18.86%	7.65%	8.77%
Goodwill	$3.529B	$2.146B	$2.121B
YoY Change	66.38%	2.3%	4.86%
Intangibles	$1.801B	$389.0M	$435.7M
YoY Change	313.44%	-10.56%	5.3%
Long-Term Investments	$101.2M	$73.80M	$44.90M
YoY Change	125.39%
Other Assets	$632.2M	$602.8M	$435.7M
YoY Change	45.11%	46.15%	10.79%
Total Long-Term Assets	$8.123B	$4.972B	$4.810B
YoY Change	68.87%	6.95%	6.87%
TOTAL ASSETS
Total Short-Term Assets	$4.733B	$5.704B	$3.588B
Total Long-Term Assets	$8.123B	$4.972B	$4.810B
Total Assets	$12.86B	$10.68B	$8.398B
YoY Change	53.07%	28.23%	0.8%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.251B	$956.9M	$1.510B
YoY Change	-17.13%	-38.02%	1.36%
Accrued Expenses	$1.082B	$882.8M	$85.10M
YoY Change	1171.22%	900.89%	-8.0%
Deferred Revenue	$802.9M	$501.1M	$528.9M
YoY Change	51.81%	-6.69%	-12.75%
Short-Term Debt	$15.75M	$13.47M	$4.233M
YoY Change	272.03%	366.64%	-35.3%
Long-Term Debt Due	$13.42M	$10.28M	$10.53M
YoY Change	27.41%	62.24%	-84.59%
Total Short-Term Liabilities	$3.165B	$2.365B	$2.139B
YoY Change	48.0%	8.55%	-5.5%
LONG-TERM LIABILITIES
Long-Term Debt	$3.724B	$2.931B	$1.174B
YoY Change	217.17%	143.75%	-9.12%
Other Long-Term Liabilities	$487.3M	$400.3M	$391.2M
YoY Change	24.56%	0.59%	25.67%
Total Long-Term Liabilities	$487.3M	$400.3M	$391.2M
YoY Change	24.56%	0.59%	25.67%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.165B	$2.365B	$2.139B
Total Long-Term Liabilities	$487.3M	$400.3M	$391.2M
Total Liabilities	$7.738B	$6.042B	$4.049B
YoY Change	91.1%	44.89%	-5.34%
SHAREHOLDERS EQUITY
Retained Earnings	$3.715B	$3.620B	$3.265B
YoY Change	13.78%	16.64%	14.39%
Common Stock	$2.615B	$2.232B	$2.170B
YoY Change	20.52%	4.8%	7.18%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$980.3M	$979.0M	$857.8M
YoY Change	14.27%	21.23%	46.19%
Treasury Stock Shares	25.91M shares	25.90M shares	24.41M shares
Shareholders Equity	$5.112B	$4.631B	$4.344B
YoY Change
Total Liabilities & Shareholders Equity	$12.86B	$10.68B	$8.398B
YoY Change	53.07%	28.23%	0.8%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q4
OPERATING ACTIVITIES
Net Income	$104.8M	$174.4M	$170.1M
YoY Change	-38.39%	7.03%	41.4%
Depreciation, Depletion And Amortization	$169.0M	$61.62M	$81.40M
YoY Change	107.61%	9.55%	4.23%
Cash From Operating Activities	$250.0M	$17.88M	$276.1M
YoY Change	-9.47%	-84.44%	-55.95%
INVESTING ACTIVITIES
Capital Expenditures	-$153.2M	$74.61M	-$93.60M
YoY Change	63.67%	46.93%	71.43%
Acquisitions		$33.26M
YoY Change		-82.28%
Other Investing Activities	-$2.330B	-$21.72M	-$49.40M
YoY Change	4615.99%	-87.92%	-212.02%
Cash From Investing Activities	-$2.483B	-$96.54M	-$143.0M
YoY Change	1636.29%	-58.13%	1261.9%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$17.80M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	766.1M	$1.564B	-166.2M
YoY Change	-560.92%	-887.69%	-68.7%
NET CHANGE
Cash From Operating Activities	250.0M	$17.88M	276.1M
Cash From Investing Activities	-2.483B	-$96.54M	-143.0M
Cash From Financing Activities	766.1M	$1.564B	-166.2M
Net Change In Cash	-1.467B	$1.484B	-33.10M
YoY Change	4331.71%	-573.11%	-138.8%
FREE CASH FLOW
Cash From Operating Activities	$250.0M	$17.88M	$276.1M
Capital Expenditures	-$153.2M	$74.61M	-$93.60M
Free Cash Flow	$403.2M	-$56.74M	$369.7M
YoY Change	9.05%	-188.54%	-45.74%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Entity Central Index Key EntityCentralIndexKey	0001050915
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	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
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	142499280	shares
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1696210000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	16546000	USD
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3002172000	USD
CY2021Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	760279000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	453832000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	61959000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	184620000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	39709000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2716083000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	50472000	USD
CY2021Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	183514000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	183382000	USD
CY2021Q3	us-gaap	Assets Current AssetsCurrent	5704134000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	3588389000	USD
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CY2021Q3	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1601500000	USD
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CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	435655000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	2145963000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	2121014000	USD
CY2021Q3	us-gaap	Assets Assets	10675716000	USD
CY2020Q4	us-gaap	Assets Assets	8398272000	USD
CY2021Q3	us-gaap	Debt Current DebtCurrent	23748000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	14764000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	78869000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	528864000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	85134000	USD
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CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1509794000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	501142000	USD
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CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2138556000	USD
CY2021Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2930905000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1174294000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	161320000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	178822000	USD
CY2021Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	184827000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	166407000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	400284000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	391221000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	6041884000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	4049300000	USD
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.00001
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.00001
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
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CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	162710792	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	139111888	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	138300191	shares
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	2000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	2000	USD
CY2021Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2232319000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2170026000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3620409000	USD
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CY2021Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	25895370	shares
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	24410601	shares
CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	979034000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	857817000	USD
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CY2021Q3	us-gaap	Minority Interest MinorityInterest	3122000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	4791000	USD
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	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8290487000	USD
CY2021Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2818602000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2512647000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7701398000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	7095513000	USD
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CY2020Q3	us-gaap	Gross Profit GrossProfit	507514000	USD
	us-gaap	Gross Profit GrossProfit	1355277000	USD
	us-gaap	Gross Profit GrossProfit	1194974000	USD
CY2021Q3	pwr	Income Loss From Equity Method Investments Integral Unconsolidated Affiliates IncomeLossFromEquityMethodInvestmentsIntegralUnconsolidatedAffiliates	10232000	USD
CY2020Q3	pwr	Income Loss From Equity Method Investments Integral Unconsolidated Affiliates IncomeLossFromEquityMethodInvestmentsIntegralUnconsolidatedAffiliates	5120000	USD
	pwr	Income Loss From Equity Method Investments Integral Unconsolidated Affiliates IncomeLossFromEquityMethodInvestmentsIntegralUnconsolidatedAffiliates	22865000	USD
	pwr	Income Loss From Equity Method Investments Integral Unconsolidated Affiliates IncomeLossFromEquityMethodInvestmentsIntegralUnconsolidatedAffiliates	6165000	USD
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	us-gaap	Operating Income Loss OperatingIncomeLoss	523457000	USD
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	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2319000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
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CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	248077000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	242215000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	435868000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	17259000	USD
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	us-gaap	Interest Expense InterestExpense	42843000	USD
	us-gaap	Interest Expense InterestExpense	33709000	USD
CY2021Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	72000	USD
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	us-gaap	Investment Income Interest InvestmentIncomeInterest	3098000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	1114000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6089000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2931000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	18232000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3649000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	236979000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	234177000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	501944000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	399624000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	61581000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	70477000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	116256000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	119626000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	175398000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	163700000	USD
	us-gaap	Profit Loss ProfitLoss	385688000	USD
	us-gaap	Profit Loss ProfitLoss	279998000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1033000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	787000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4529000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4453000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	174365000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	162913000	USD
	us-gaap	Net Income Loss NetIncomeLoss	381159000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.25
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.16
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.72
	us-gaap	Net Income Loss NetIncomeLoss	275545000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.95
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.21
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.13
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.64
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.90
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140008000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140542000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140134000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	141610000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144304000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144363000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144448000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144985000	shares
	us-gaap	Profit Loss ProfitLoss	385688000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	175398000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	163700000	USD
	us-gaap	Profit Loss ProfitLoss	279998000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2020Q3	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
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-26429000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	15707000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-10009000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-32524000	USD
CY2021Q3	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	1000	USD
CY2020Q3	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	0	USD
	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	4000	USD
	pwr	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	0	USD
CY2021Q3	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	6000	USD
CY2020Q3	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	0	USD
	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	20000	USD
	pwr	Other Comprehensive Income Loss Other Net Of Tax OtherComprehensiveIncomeLossOtherNetOfTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-26423000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	15707000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-9989000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-32524000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	148975000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	179407000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	375699000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	247474000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1033000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	787000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4529000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4453000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	147942000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	178620000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	371170000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	243021000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	175398000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	163700000	USD
	us-gaap	Profit Loss ProfitLoss	385688000	USD
	us-gaap	Profit Loss ProfitLoss	279998000	USD
CY2021Q3	us-gaap	Depreciation Depreciation	61616000	USD
CY2020Q3	us-gaap	Depreciation Depreciation	56244000	USD
	us-gaap	Depreciation Depreciation	186480000	USD
	us-gaap	Depreciation Depreciation	165180000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	22772000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	19687000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	65418000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	55374000	USD
CY2021Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2319000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	USD
CY2020Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	9311000	USD
CY2021Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-787000	USD
CY2020Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	78000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-1360000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	598000	USD
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10758000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5260000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	24734000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2207000	USD
CY2021Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3919000	USD
CY2020Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3070000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5609000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4247000	USD
CY2021Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1077000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2246000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10931000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	4218000	USD
CY2021Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	249000	USD
CY2020Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1566000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24169000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2910000	USD
CY2021Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2502000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-17443000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	14245000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-19226000	USD
CY2021Q3	us-gaap	Share Based Compensation ShareBasedCompensation	21642000	USD
CY2020Q3	us-gaap	Share Based Compensation ShareBasedCompensation	21431000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	64252000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	58323000	USD
CY2021Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	4901000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1505000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	6531000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	4942000	USD
CY2021Q3	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	0	USD
CY2020Q3	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	0	USD
	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	0	USD
	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	590000	USD
CY2021Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	247695000	USD
CY2020Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	124463000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	372187000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-290715000	USD
CY2021Q3	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	17876000	USD
CY2020Q3	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	114859000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	332437000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	839887000	USD
CY2021Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	74612000	USD
CY2020Q3	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	50780000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	232996000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	167037000	USD
CY2021Q3	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16431000	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5844000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	35101000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	18460000	USD
CY2021Q3	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	255000	USD
CY2020Q3	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	73000	USD
	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	535000	USD
	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	271000	USD
CY2021Q3	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	33261000	USD
CY2020Q3	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	187655000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	101373000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	212092000	USD
CY2021Q3	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2020Q3	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	203000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	11064000	USD
CY2021Q3	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	5154000	USD
CY2020Q3	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	778000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	119478000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	9538000	USD
CY2021Q3	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	5000	USD
CY2020Q3	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2538000	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	3022000	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2570000	USD
CY2021Q3	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	200000	USD
CY2020Q3	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	524000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2021Q3	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-96536000	USD
CY2020Q3	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-230555000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-415713000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-356302000	USD
CY2021Q3	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1240766000	USD
CY2020Q3	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	478762000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	3124845000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	2453941000	USD
CY2021Q3	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1142350000	USD
CY2020Q3	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1648614000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	2857190000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	3602660000	USD
CY2021Q3	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1487450000	USD
CY2020Q3	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	990130000	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1487450000	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	990130000	USD
CY2021Q3	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	916000	USD
CY2020Q3	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	652000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	2530000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-6180000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1635000	USD
CY2021Q3	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	13619000	USD
CY2020Q3	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-1761000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	9372000	USD
CY2021Q3	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5056000	USD
CY2020Q3	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7794000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5056000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7794000	USD
CY2021Q3	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2020Q3	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	263000	USD
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	10399000	USD
CY2021Q3	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1107000	USD
CY2020Q3	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	744000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	6357000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	4669000	USD
CY2021Q3	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-549000	USD
CY2021Q3	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2638000	USD
CY2020Q3	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	830000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	63131000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	24403000	USD
CY2021Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	8414000	USD
CY2020Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	7001000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25627000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	21545000	USD
CY2021Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17764000	USD
CY2020Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	66687000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200000000	USD
CY2021Q3	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1563590000	USD
CY2020Q3	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-198504000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1594826000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-435214000	USD
CY2020Q3	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	449000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	738000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	986000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1484381000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-313751000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1512288000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	49357000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	214715000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532853000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	186808000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169745000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1699096000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	219102000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1699096000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	219102000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4348972000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8539000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-41399000	USD
CY2021Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	17710000	USD
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2021Q1	us-gaap	Dividends Cash DividendsCash	8429000	USD
CY2021Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1129000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	91319000	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4380163000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7895000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	24961000	USD
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	29450000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2021Q2	us-gaap	Dividends Cash DividendsCash	8650000	USD
CY2021Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	4121000	USD
CY2021Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	-25000	USD
CY2021Q2	us-gaap	Profit Loss ProfitLoss	118971000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4489794000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-26423000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	2479000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	19023000	USD
CY2021Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	16828000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2021Q3	us-gaap	Dividends Cash DividendsCash	8638000	USD
CY2021Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1107000	USD
CY2021Q3	us-gaap	Stockholders Equity Other StockholdersEquityOther	-134000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	175398000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4633832000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4053831000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-82968000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	4329000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-8306000	USD
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	200000000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q1	us-gaap	Dividends Cash DividendsCash	7184000	USD
CY2020Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1963000	USD
CY2020Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	223000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	41503000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3795178000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	34737000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	22436000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q2	us-gaap	Dividends Cash DividendsCash	7182000	USD
CY2020Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1962000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	74795000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3918002000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	15707000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	45532000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	20613000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q3	us-gaap	Dividends Cash DividendsCash	7244000	USD
CY2020Q3	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	744000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	163700000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4155566000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
	us-gaap	Use Of Estimates UseOfEstimates	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 revenue recognition for construction contracts, including contractual change orders and claims; allowance for credit losses; 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; estimated insurance claim recoveries; stock-based compensation; operating results of reportable segments; provision for income taxes; and uncertain tax positions.
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4370000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	3990000000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.787
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.712
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate	41900000	USD
CY2021Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.078
	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate	127400000	USD
	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.094
CY2020Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate	48700000	USD
CY2020Q3	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.096
	pwr	Contract With Customer Cumulative Catch Up Adjustment To Gross Profit Change In Estimate Percent ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent	0.05
CY2021Q3	pwr	Contract With Customer Revenue Recognized Related To Unapproved Change Orders And Claims ContractWithCustomerRevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims	254100000	USD
CY2020Q4	pwr	Contract With Customer Revenue Recognized Related To Unapproved Change Orders And Claims ContractWithCustomerRevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims	141200000	USD
CY2021Q3	pwr	Contract With Customer Number Of Delayed Electric Transmission Projects With Large Component Of Change Orders In Recent Quarters ContractWithCustomerNumberOfDelayedElectricTransmissionProjectsWithLargeComponentOfChangeOrdersInRecentQuarters	2	numberOfProjects
CY2021Q3	pwr	Contract With Customer Number Of Projects Significantly Impacted By Acceleration Of Project Timeline ContractWithCustomerNumberOfProjectsSignificantlyImpactedByAccelerationOfProjectTimeline	1	unit
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3353278000	USD
CY2021Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3020161000	USD
CY2020Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9056675000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8290487000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3353278000	USD
CY2021Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3020161000	USD
CY2020Q3	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9056675000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8290487000	USD
	pwr	Percentage Of Total Revenues PercentageOfTotalRevenues	1.000
CY2021Q3	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.425
CY2020Q3	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.479
	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.434
	pwr	Revenue From Contract With Customer Percentage Of Revenue Recognized Over Time RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime	0.484
CY2021Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	760279000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	453832000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	501142000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	528864000	USD
CY2021Q3	pwr	Contract With Customer Number Of Projects Significantly Impacted By Acceleration Of Project Timeline ContractWithCustomerNumberOfProjectsSignificantlyImpactedByAccelerationOfProjectTimeline	1	unit
	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	151700000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	381900000	USD
CY2021Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	39713000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	14948000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16546000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9398000	USD
CY2021Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	249000	USD
CY2020Q3	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1566000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24169000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2910000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	253000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	110000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	1006000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	971000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	39709000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16404000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	39709000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16404000	USD
CY2021Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Current ContractWithCustomerReceivableAfterAllowanceForCreditLossCurrent	295900000	USD
CY2020Q4	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Current ContractWithCustomerReceivableAfterAllowanceForCreditLossCurrent	306300000	USD
CY2020Q4	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Noncurrent ContractWithCustomerReceivableAfterAllowanceForCreditLossNoncurrent	88200000	USD
CY2021Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Noncurrent ContractWithCustomerReceivableAfterAllowanceForCreditLossNoncurrent	88200000	USD
CY2021Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	827300000	USD
CY2020Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	472300000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1696210000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	184620000	USD
CY2021Q3	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	1630000000	USD
CY2020Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	98000000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1696210000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	184620000	USD
CY2021Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q3	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020Q4	pwr	Decrease In Fair Value Of Reporting Units Considered For Impairment Calculation DecreaseInFairValueOfReportingUnitsConsideredForImpairmentCalculation	0.10
CY2020Q4	pwr	Decrease In Fair Value Of Reporting Units Considered For Impairment Calculation DecreaseInFairValueOfReportingUnitsConsideredForImpairmentCalculation	0.10
CY2021Q3	us-gaap	Equity Method Investments EquityMethodInvestments	73800000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	44900000	USD
CY2021Q1	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	23500000	USD
CY2021Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	23400000	USD
CY2020Q2	pwr	Operation And Maintenance Agreement Length Of System OperationAndMaintenanceAgreementLengthOfSystem	18000	mile
CY2021Q3	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	956873000	USD
CY2020Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	798023000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	497451000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	378002000	USD
CY2021Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	306465000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	333769000	USD
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1760789000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1509794000	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40600000	USD
	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	7400000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2400000	USD
CY2021Q3	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	13300000	USD
CY2021Q3	pwr	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Tangible Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleAssets	136400000	USD
CY2021	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	37600000	USD
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	35300000	USD
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3357877000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3069921000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	9090656000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	8519226000	USD
CY2021Q3	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	535935000	USD
CY2020Q3	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	520866000	USD
	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1367256000	USD
	pwr	Business Acquisitions Pro Forma Gross Profit BusinessAcquisitionsProFormaGrossProfit	1254826000	USD
CY2021Q3	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	275363000	USD
CY2020Q3	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	256608000	USD
	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	794249000	USD
	pwr	Business Acquisitions Pro Forma Selling General And Administrative Expenses BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses	740564000	USD
CY2021Q3	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	22836000	USD
CY2020Q3	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	22843000	USD
	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	68167000	USD
	pwr	Business Acquisitions Pro Forma Amortization Of Intangible Assets BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets	69742000	USD
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	175865000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	166326000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	387713000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	287171000	USD
CY2021Q3	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	174832000	USD
CY2020Q3	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	165539000	USD
	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	383184000	USD
	pwr	Business Acquisitions Pro Forma Net Income Loss Attributable To Common Stock Net Of Tax BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax	282718000	USD
CY2021Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.25
CY2020Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.17
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	2.73
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.98
CY2021Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.21
CY2020Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.14
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2.65
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.94
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	174365000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	174365000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	162913000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	162913000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	381159000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	381159000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	275545000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	275545000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140008000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140542000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140134000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	141610000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4296000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3821000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4314000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3375000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144304000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144363000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144448000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144985000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	500000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	1400000	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	700000	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	1700000	shares
CY2021Q3	us-gaap	Line Of Credit LineOfCredit	415851000	USD
CY2020Q4	us-gaap	Line Of Credit LineOfCredit	148508000	USD
CY2021Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	51366000	USD
CY2020Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	46981000	USD
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	2253000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2228000	USD
CY2021Q3	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	2941181000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	1184825000	USD
CY2021Q3	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	10276000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	10531000	USD
CY2021Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2930905000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1174294000	USD
CY2021Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	13472000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	4233000	USD
CY2021Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	10276000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	10531000	USD
CY2021Q3	us-gaap	Debt Current DebtCurrent	23748000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	14764000	USD
CY2021Q3	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	517883000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1462069000	USD
	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	576993000	USD
	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	2023326000	USD
CY2021Q3	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	416089000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	1255171000	USD
	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	360609000	USD
	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	1395207000	USD
CY2021Q3	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0213
CY2020Q3	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0157
	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0205
	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0213
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	231000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	53000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	705000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	515000	USD
CY2021Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	18000	USD
CY2020Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	16000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	68000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	50000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	25323000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	29577000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	80046000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	89289000	USD
CY2021Q3	pwr	Short Term Lease And Variable Lease Cost ShortTermLeaseAndVariableLeaseCost	176605000	USD
CY2020Q3	pwr	Short Term Lease And Variable Lease Cost ShortTermLeaseAndVariableLeaseCost	160365000	USD
	pwr	Short Term Lease And Variable Lease Cost ShortTermLeaseAndVariableLeaseCost	494846000	USD
	pwr	Short Term Lease And Variable Lease Cost ShortTermLeaseAndVariableLeaseCost	478683000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	202177000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	190011000	USD
	us-gaap	Lease Cost LeaseCost	575665000	USD
	us-gaap	Lease Cost LeaseCost	568537000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	23964000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	296000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Remainder Of Fiscal Year OperatingAndFinanceLeaseLiabilitiesPaymentsRemainderOfFiscalYear	24260000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	80516000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	872000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year One OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearOne	81388000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	58265000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	666000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Two OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearTwo	58931000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	36341000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	409000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Three OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearThree	36750000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	24449000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	126000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Due Year Four OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFour	24575000	USD
CY2021Q3	pwr	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	36996000	USD
CY2021Q3	pwr	Finance Lease Liability To Be Paid After Year Four FinanceLeaseLiabilityToBePaidAfterYearFour	0	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Due After Year Four OperatingAndFinanceLeaseLiabilitiesPaymentsDueAfterYearFour	36996000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	260531000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	2369000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Payments Due OperatingAndFinanceLeaseLiabilitiesPaymentsDue	262900000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	20342000	USD
CY2021Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	116000	USD
CY2021Q3	pwr	Operating And Finance Lease Liabilities Undiscounted Excess Amount OperatingAndFinanceLeaseLiabilitiesUndiscountedExcessAmount	20458000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	240189000	USD
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	2253000	USD
CY2021Q3	pwr	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	242442000	USD
CY2021Q3	us-gaap	Short Term Lease Commitment Amount ShortTermLeaseCommitmentAmount	18700000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y1M28D
CY2021Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y10M24D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.039
CY2021Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.037
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	200000000	USD
CY2021Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17800000	USD
CY2021Q3	us-gaap	Operating Lease Residual Value Of Leased Asset OperatingLeaseResidualValueOfLeasedAsset	886900000	USD
CY2021Q3	pwr	Lessee Operating Lease Lease Not Yet Commenced Liability LesseeOperatingLeaseLeaseNotYetCommencedLiability	6400000	USD
CY2021Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	185000	shares
CY2021Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	16828000	USD
CY2021Q2	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	314000	shares
CY2021Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	29450000	USD
CY2021Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	222000	shares
CY2021Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	17710000	USD
CY2020Q4	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	720000	shares
CY2020Q4	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	49949000	USD
CY2020Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2020Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	0	USD
CY2020Q2	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2020Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	0	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	5960000	shares
CY2020Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	66700000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200000000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2021Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8638000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2021Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8650000	USD
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2021Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8429000	USD
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.06
CY2020Q4	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8933000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7244000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7182000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7184000	USD
CY2021Q3	pwr	Number Of Share Based Equity Plans NumberOfShareBasedEquityPlans	2	incentivePlan
CY2021Q3	us-gaap	Other Commitment OtherCommitment	13600000	USD
CY2021Q3	pwr	Unrecorded Unconditional Purchase Obligation To Be Paid Year One Payments In First Half Of Year UnrecordedUnconditionalPurchaseObligationToBePaidYearOnePaymentsInFirstHalfOfYear	68400000	USD
CY2019Q3	pwr	Number Of Buildings With Property Damage NumberOfBuildingsWithPropertyDamage	2	building
CY2021Q3	pwr	Customers Ownership Percentage In Joint Venture CustomersOwnershipPercentageInJointVenture	0.50
CY2021Q3	pwr	Employers Liability Insurance Claims Deductible EmployersLiabilityInsuranceClaimsDeductible	5000000	USD
CY2021Q3	pwr	Workers Compensation Insurance Claims Deductible WorkersCompensationInsuranceClaimsDeductible	5000000	USD
CY2021Q3	pwr	General Liability Insurance Claims Deductible GeneralLiabilityInsuranceClaimsDeductible	15000000	USD
CY2021Q3	pwr	Auto Liability Insurance Claims Deductible AutoLiabilityInsuranceClaimsDeductible	15000000	USD
CY2021Q3	pwr	Health Care Deductible HealthCareDeductible	800000	USD
CY2020Q3	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	200000	USD
CY2021Q3	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	200000	USD
	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1000000	USD
	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1000000	USD
	pwr	Deferred Compensation Arrangement With Individual Employer Discretionary Contribution Amount DeferredCompensationArrangementWithIndividualEmployerDiscretionaryContributionAmount	0	USD
	pwr	Deferred Compensation Arrangement With Individual Employer Discretionary Contribution Amount DeferredCompensationArrangementWithIndividualEmployerDiscretionaryContributionAmount	0	USD
CY2021Q3	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	69100000	USD
CY2020Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	58200000	USD
CY2021Q3	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	68400000	USD
CY2020Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	56500000	USD
CY2021Q3	pwr	Increase Decrease In Deferred Compensation Plan Assets IncreaseDecreaseInDeferredCompensationPlanAssets	-200000	USD
CY2020Q3	pwr	Increase Decrease In Deferred Compensation Plan Assets IncreaseDecreaseInDeferredCompensationPlanAssets	2800000	USD
	pwr	Increase Decrease In Deferred Compensation Plan Assets IncreaseDecreaseInDeferredCompensationPlanAssets	5300000	USD
	pwr	Increase Decrease In Deferred Compensation Plan Assets IncreaseDecreaseInDeferredCompensationPlanAssets	1900000	USD
CY2021Q3	pwr	Increase Decrease In Deferred Compensation Plan Liabilities IncreaseDecreaseInDeferredCompensationPlanLiabilities	0	USD
CY2020Q3	pwr	Increase Decrease In Deferred Compensation Plan Liabilities IncreaseDecreaseInDeferredCompensationPlanLiabilities	3300000	USD
	pwr	Increase Decrease In Deferred Compensation Plan Liabilities IncreaseDecreaseInDeferredCompensationPlanLiabilities	6000000	USD
	pwr	Increase Decrease In Deferred Compensation Plan Liabilities IncreaseDecreaseInDeferredCompensationPlanLiabilities	1900000	USD
CY2021Q3	us-gaap	Operating Lease Residual Value Of Leased Asset OperatingLeaseResidualValueOfLeasedAsset	886900000	USD
CY2020	pwr	Cares Act Deferred Payment Employer Payroll Taxes CARESActDeferredPaymentEmployerPayrollTaxes	108900000	USD
CY2021Q3	pwr	Cares Act Deferred Payment Employer Payroll Taxes Percentage Of Amount Due Due Year One CARESActDeferredPaymentEmployerPayrollTaxesPercentageOfAmountDueDueYearOne	0.50
CY2021Q3	pwr	Cares Act Deferred Payment Employer Payroll Taxes Percentage Of Amount Due Remainder Of Fiscal Year CARESActDeferredPaymentEmployerPayrollTaxesPercentageOfAmountDueRemainderOfFiscalYear	0.50
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	division
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3353278000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3020161000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9056675000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8290487000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6139000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	248077000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	242215000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	523457000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	435868000	USD
CY2021Q3	us-gaap	Depreciation Depreciation	61616000	USD
CY2020Q3	us-gaap	Depreciation Depreciation	56244000	USD
	us-gaap	Depreciation Depreciation	186480000	USD
	us-gaap	Depreciation Depreciation	165180000	USD
CY2021Q3	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	411890000	USD
CY2020Q3	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	322579000	USD
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	299857000	USD
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-37541000	USD
CY2021Q3	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	96423000	USD
CY2020Q3	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-21950000	USD
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	308849000	USD
CY2021Q3	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5000	USD
CY2020Q3	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-8655000	USD
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-121999000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-6787000	USD
CY2021Q3	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-37406000	USD
CY2020Q3	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-19655000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4943000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-70133000	USD
CY2021Q3	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	230631000	USD
CY2020Q3	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	235633000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	289833000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	147888000	USD
CY2021Q3	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-1397000	USD
CY2020Q3	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-79964000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-27027000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-73567000	USD
CY2021Q3	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	6027000	USD
CY2020Q3	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	7813000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	15205000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	20066000	USD
CY2021Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	247695000	USD
CY2020Q3	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	124463000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	372187000	USD
	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-290715000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1696210000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	216935000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1699096000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	219102000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	212473000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	530670000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	214715000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532853000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	184620000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	164798000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	186808000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169745000	USD
CY2020Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	16619000	USD
CY2021Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	25331000	USD
CY2020Q3	us-gaap	Operating Lease Payments OperatingLeasePayments	29333000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	79730000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	88570000	USD
CY2021Q3	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	18000	USD
CY2020Q3	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	16000	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	68000	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	50000	USD
CY2021Q3	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	168000	USD
CY2020Q3	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	102000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	688000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	525000	USD
CY2021Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	17081000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	41686000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	56970000	USD
CY2021Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	112000	USD
CY2020Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	275000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	398000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	1158000	USD
CY2021Q3	pwr	Rental Purchase Option Asset Obtained In Exchange For Rental Purchase Option Liability RentalPurchaseOptionAssetObtainedInExchangeForRentalPurchaseOptionLiability	1129000	USD
CY2020Q3	pwr	Rental Purchase Option Asset Obtained In Exchange For Rental Purchase Option Liability RentalPurchaseOptionAssetObtainedInExchangeForRentalPurchaseOptionLiability	3306000	USD
	pwr	Rental Purchase Option Asset Obtained In Exchange For Rental Purchase Option Liability RentalPurchaseOptionAssetObtainedInExchangeForRentalPurchaseOptionLiability	7009000	USD
	pwr	Rental Purchase Option Asset Obtained In Exchange For Rental Purchase Option Liability RentalPurchaseOptionAssetObtainedInExchangeForRentalPurchaseOptionLiability	13229000	USD
CY2021Q3	us-gaap	Interest Paid Net InterestPaidNet	2260000	USD
CY2020Q3	us-gaap	Interest Paid Net InterestPaidNet	8443000	USD
	us-gaap	Interest Paid Net InterestPaidNet	26883000	USD
	us-gaap	Interest Paid Net InterestPaidNet	30704000	USD
CY2021Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	35740000	USD
CY2020Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	86077000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	103225000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	149690000	USD
CY2021Q3	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	2419000	USD
CY2020Q3	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	1087000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	9211000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	5545000	USD

Files In Submission

Name	View Source	Status
0001050915-21-000114-index-headers.html	Edgar Link	pending
0001050915-21-000114-index.html	Edgar Link	pending
0001050915-21-000114.txt	Edgar Link	pending
0001050915-21-000114-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
pwr-20210930.htm	Edgar Link	pending
pwr-20210930.xsd	Edgar Link	pending
pwr-20210930_cal.xml	Edgar Link	unprocessable
pwr-20210930_def.xml	Edgar Link	unprocessable
pwr-20210930_g1.jpg	Edgar Link	pending
pwr-20210930_htm.xml	Edgar Link	completed
pwr-20210930_lab.xml	Edgar Link	unprocessable
pwr-20210930_pre.xml	Edgar Link	unprocessable
pwr09-30x2021ex311.htm	Edgar Link	pending
pwr09-30x2021ex312.htm	Edgar Link	pending
pwr09-30x2021ex321.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
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R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$PWR
QUANTA SERVICES, INC. Stock $pwr

2021 Q4 Form 10-Q Financial Statement

#000105091521000114 Filed on November 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR QUANTA SERVICES, INC. Stock $pwr

2021 Q4 Form 10-Q Financial Statement

#000105091521000114 Filed on November 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR
QUANTA SERVICES, INC. Stock $pwr