$PWR
QUANTA SERVICES, INC. Stock $pwr

$pwr Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000105091518000003 Filed on February 28, 2018

Income Statement

Concept	2017 Q4	2017 Q3	2017
Revenue	$2.479B	$2.609B	$9.466B
YoY Change	17.86%	27.77%	23.72%
Cost Of Revenue	$2.156B	$2.259B	$8.225B
YoY Change	20.08%	29.84%	23.91%
Gross Profit	$322.9M	$350.6M	$1.242B
YoY Change	4.94%	15.88%	22.5%
Gross Profit Margin	13.03%	13.44%	13.12%
Selling, General & Admin	$206.3M	$201.2M	$777.9M
YoY Change	18.63%	22.45%	19.07%
% of Gross Profit	63.89%	57.39%	62.64%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$58.20M	$48.43M	$183.8M
YoY Change	12.79%	13.47%	7.97%
% of Gross Profit	18.03%	13.81%	14.8%
Operating Expenses	$216.3M	$201.2M	$777.9M
YoY Change	18.98%	22.45%	19.07%
Operating Profit	$106.6M	$140.4M	$378.8M
YoY Change	-15.34%	7.89%	18.09%
Interest Expense	-$6.500M	$6.058M	$20.95M
YoY Change	66.67%	62.59%	40.7%
% of Operating Profit	-6.1%	4.31%	5.53%
Other Income/Expense, Net	$4.000M	-$2.371M	-$4.978M
YoY Change	-4100.0%	-415.29%	650.83%
Pretax Income	$45.90M	$132.2M	$353.8M
YoY Change	-59.7%	3.23%	14.97%
Income Tax	$400.0K	$42.35M	$35.53M
% Of Pretax Income	0.87%	32.03%	10.04%
Net Earnings	$115.6M	$89.85M	$315.0M
YoY Change	30.8%	21.17%	57.41%
Net Earnings / Revenue	4.66%	3.44%	3.33%
Basic Earnings Per Share		$0.57	$2.02
Diluted Earnings Per Share	$704.7K	$0.56	$2.00
COMMON SHARES
Basic Shares Outstanding		157.5M shares	156.1M shares
Diluted Shares Outstanding		158.6M shares	157.2M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2017
SHORT-TERM ASSETS
Cash & Short-Term Investments	$138.3M	$91.50M	$138.3M
YoY Change	23.26%	-22.06%	23.26%
Cash & Equivalents	$138.3M	$91.53M	$138.3M
Short-Term Investments
Other Short-Term Assets	$168.4M	$147.3M	$168.4M
YoY Change	46.95%	8.31%	46.95%
Inventory	$80.89M	$86.39M	$80.90M
Prepaid Expenses
Receivables	$1.985B	$1.980B	$2.482B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.870B	$2.948B	$2.870B
YoY Change	25.39%	22.57%	25.39%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.289B	$1.256B	$1.289B
YoY Change	9.75%	7.79%	9.75%
Goodwill	$1.869B	$1.937B
YoY Change	16.56%	20.15%
Intangibles	$263.2M	$275.0M
YoY Change	40.72%	39.21%
Long-Term Investments
YoY Change
Other Assets	$189.9M	$223.5M	$189.9M
YoY Change	87.93%	133.68%	88.02%
Total Long-Term Assets	$3.610B	$3.692B	$3.610B
YoY Change	17.78%	20.22%	17.78%
TOTAL ASSETS
Total Short-Term Assets	$2.870B	$2.948B	$2.870B
Total Long-Term Assets	$3.610B	$3.692B	$3.610B
Total Assets	$6.480B	$6.640B	$6.480B
YoY Change	21.03%	21.25%	21.03%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.058B	$1.215B	$632.9M
YoY Change	14.6%	30.82%	19.51%
Accrued Expenses			$388.9M
YoY Change			15.43%
Deferred Revenue	$433.4M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change	-100.0%		-100.0%
Long-Term Debt Due	$1.220M	$2.804M	$1.200M
YoY Change	-74.73%	-44.6%	-75.0%
Total Short-Term Liabilities	$1.492B	$1.592B	$1.492B
YoY Change	23.8%	27.82%	23.81%
LONG-TERM LIABILITIES
Long-Term Debt	$670.7M	$760.2M	$670.7M
YoY Change	89.7%	57.59%	89.68%
Other Long-Term Liabilities	$342.4M	$345.3M	$342.4M
YoY Change	31.81%	20.23%	31.84%
Total Long-Term Liabilities	$1.013B	$1.106B	$1.013B
YoY Change	65.19%	43.64%	65.19%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.492B	$1.592B	$1.492B
Total Long-Term Liabilities	$1.013B	$1.106B	$1.013B
Total Liabilities	$2.685B	$2.910B	$2.689B
YoY Change	33.47%	32.28%	33.46%
SHAREHOLDERS EQUITY
Retained Earnings	$2.191B	$2.077B
YoY Change	16.79%	16.16%
Common Stock	$1.889B	$1.878B
YoY Change	8.01%	-49.09%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$85.45M	$35.82M
YoY Change	498.06%	-98.17%
Treasury Stock Shares	1.877M shares	483.6K shares
Shareholders Equity	$3.792B	$3.728B	$3.792B
YoY Change
Total Liabilities & Shareholders Equity	$6.480B	$6.640B	$6.480B
YoY Change	21.03%	21.25%	21.03%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017
OPERATING ACTIVITIES
Net Income	$115.6M	$89.85M	$315.0M
YoY Change	30.8%	21.17%	57.41%
Depreciation, Depletion And Amortization	$58.20M	$48.43M	$183.8M
YoY Change	12.79%	13.47%	7.97%
Cash From Operating Activities	$197.2M	$173.6M	$371.9M
YoY Change	7.12%	-353.38%	-4.57%
INVESTING ACTIVITIES
Capital Expenditures	-$76.40M	$63.00M	$244.7M
YoY Change	12.02%	75.61%	15.1%
Acquisitions		$352.9M	$361.2M
YoY Change		1149.25%	425.12%
Other Investing Activities	$69.90M	-$676.0K	-$275.0K
YoY Change	1647.5%	-15.71%	-94.21%
Cash From Investing Activities	-$6.500M	-$451.5M	-$572.1M
YoY Change	-89.86%	657.63%	111.49%
FINANCING ACTIVITIES
Cash Dividend Paid			$0.00
YoY Change
Common Stock Issuance & Retirement, Net		$0.00	$50.00M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-142.2M	$270.1M	$227.8M
YoY Change	15.33%	229.03%	-270.23%
NET CHANGE
Cash From Operating Activities	197.2M	$173.6M	$371.9M
Cash From Investing Activities	-6.500M	-$451.5M	-$572.1M
Cash From Financing Activities	-142.2M	$270.1M	$227.8M
Net Change In Cash	48.50M	-$7.374M	$29.37M
YoY Change	-1569.7%	-83.97%	-304.48%
FREE CASH FLOW
Cash From Operating Activities	$197.2M	$173.6M	$371.9M
Capital Expenditures	-$76.40M	$63.00M	$244.7M
Free Cash Flow	$273.6M	$110.6M	$127.2M
YoY Change	8.44%	-205.94%	-28.17%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017Q2	dei	Entity Public Float EntityPublicFloat	4900000000	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	QUANTA SERVICES INC
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001050915
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017	dei	Trading Symbol TradingSymbol	PWR
CY2016Q4	pwr	Asset Impairment Charges Net Of Tax AssetImpairmentChargesNetOfTax	7100000	USD
CY2017Q4	pwr	Asset Impairment Charges Net Of Tax AssetImpairmentChargesNetOfTax	36600000	USD
CY2017	pwr	Auto Liability Insurance Claims Deductible AutoLiabilityInsuranceClaimsDeductible	10000000	USD
CY2016Q4	pwr	Billings To Date BillingsToDate	7255582000	USD
CY2017Q4	pwr	Billings To Date BillingsToDate	8941397000	USD
CY2015	pwr	Cash Paid For Other Intangibles CashPaidForOtherIntangibles	211000	USD
CY2016	pwr	Cash Paid For Other Intangibles CashPaidForOtherIntangibles	0	USD
CY2017	pwr	Cash Paid For Other Intangibles CashPaidForOtherIntangibles	0	USD
CY2016Q4	pwr	Cost And Estimated Earnings Net CostAndEstimatedEarningsNet	198462000	USD
CY2017Q4	pwr	Cost And Estimated Earnings Net CostAndEstimatedEarningsNet	63905000	USD
CY2016Q4	pwr	Costs And Estimated Earnings CostsAndEstimatedEarnings	7454044000	USD
CY2017Q4	pwr	Costs And Estimated Earnings CostsAndEstimatedEarnings	9005302000	USD
CY2016Q4	pwr	Costs Incurred On Contracts In Progress CostsIncurredOnContractsInProgress	6687484000	USD
CY2017Q4	pwr	Costs Incurred On Contracts In Progress CostsIncurredOnContractsInProgress	7912999000	USD
CY2017Q4	pwr	Decrease In Fair Value Of Reporting Units Considered For Impairment Calculation DecreaseInFairValueOfReportingUnitsConsideredForImpairmentCalculation	0.10
CY2016Q4	pwr	Deferred Tax Liabilities Customer Holdbacks DeferredTaxLiabilitiesCustomerHoldbacks	16424000	USD
CY2017Q4	pwr	Deferred Tax Liabilities Customer Holdbacks DeferredTaxLiabilitiesCustomerHoldbacks	36218000	USD
CY2017	pwr	Defined Contribution Plan Employer Matching Contribution Percentof Match By Employer Of Each Employee Who Contributes To Plan DefinedContributionPlanEmployerMatchingContributionPercentofMatchByEmployerOfEachEmployeeWhoContributesToPlan	0.50
CY2017	pwr	Defined Contribution Plan Employer Matching Contribution Percentof Match By Employer Up To Specific Percentage DefinedContributionPlanEmployerMatchingContributionPercentofMatchByEmployerUpToSpecificPercentage	1.00
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CY2015	pwr	Effective Income Tax Rate Reconciliation Excess Tax Benefits From Share Based Compensation Amount EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsFromShareBasedCompensationAmount	0	USD
CY2016	pwr	Effective Income Tax Rate Reconciliation Excess Tax Benefits From Share Based Compensation Amount EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsFromShareBasedCompensationAmount	0	USD
CY2017	pwr	Effective Income Tax Rate Reconciliation Excess Tax Benefits From Share Based Compensation Amount EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsFromShareBasedCompensationAmount	5095000	USD
CY2015	pwr	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount	0	USD
CY2016	pwr	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount	0	USD
CY2017	pwr	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Amount	-70129000	USD
CY2017	pwr	Employers Liability Insurance Claims Deductible EmployersLiabilityInsuranceClaimsDeductible	1000000	USD
CY2016Q4	pwr	Estimated Earnings Loss Net On Contracts In Progress EstimatedEarningsLossNetOnContractsInProgress	766560000	USD
CY2017Q4	pwr	Estimated Earnings Loss Net On Contracts In Progress EstimatedEarningsLossNetOnContractsInProgress	1092303000	USD
CY2017Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Thereafter ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsThereafter	65400000	USD
CY2017Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Five ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearFive	200000	USD
CY2017Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Four ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearFour	100000	USD
CY2017Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year One ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearOne	200000	USD
CY2017Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Three ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearThree	1900000	USD
CY2017Q4	pwr	Expiration Amount Of State And Foreign Net Operating Loss Carryforwards Year Two ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearTwo	100000	USD
CY2017	pwr	General Liability Insurance Claims Deductible GeneralLiabilityInsuranceClaimsDeductible	10000000	USD
CY2017	pwr	Health Care Deductible HealthCareDeductible	400000	USD
CY2017Q4	pwr	Market Capitalization MarketCapitalization	6020000000	USD
CY2015	pwr	Market Capitalization Weighted Percentage MarketCapitalizationWeightedPercentage	0.15
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CY2015	pwr	Market Multiple Weighted Percentage MarketMultipleWeightedPercentage	0.15
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CY2017	pwr	Minimum Number Of Shares That Can Be Exchanged By Exchangeable Shareholders Unless Number Of Remaining Exchangeable Shares Registered In Name Of Holder Is Less MinimumNumberOfSharesThatCanBeExchangedByExchangeableShareholdersUnlessNumberOfRemainingExchangeableSharesRegisteredInNameOfHolderIsLess	50000	shares
CY2015	pwr	Noncontrolling Interest Decreasefrom Distributionsto Noncontrolling Interest Holders Net Of Contributions Received NoncontrollingInterestDecreasefromDistributionstoNoncontrollingInterestHoldersNetOfContributionsReceived	18915000	USD
CY2015	pwr	Noncontrolling Interest Decreasefrom Distributionsto Noncontrolling Interest Holders Net Of Contributions Received NoncontrollingInterestDecreasefromDistributionstoNoncontrollingInterestHoldersNetOfContributionsReceived	18900000	USD
CY2017	pwr	Notes Receivable Reduction NotesReceivableReduction	7100000	USD
CY2017	pwr	Number Of Businesses Acquired With Preferred Stock Issued To Voting Trusts NumberOfBusinessesAcquiredWithPreferredStockIssuedToVotingTrusts	2	Acquisition
CY2017	pwr	Number Of Internal Divisions NumberOfInternalDivisions	2	Divisions
CY2015Q4	pwr	Number Of Reporting Units Impacted By Impairment Charges NumberOfReportingUnitsImpactedByImpairmentCharges	2	Reporting_Unit
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CY2017Q4	pwr	Number Of Reporting Units Impacted By Impairment Charges NumberOfReportingUnitsImpactedByImpairmentCharges	2	Reporting_Unit
CY2017	pwr	Number Of Reporting Units Impacted By Impairment Charges NumberOfReportingUnitsImpactedByImpairmentCharges	2	Reporting_Unit
CY2017	pwr	Number Of Shares Of Common Stock Received For Each Exchangeable Share NumberOfSharesOfCommonStockReceivedForEachExchangeableShare	1	shares
CY2015	pwr	Other Comprehensive Income Other Tax OtherComprehensiveIncomeOtherTax	-28000	USD
CY2016	pwr	Other Comprehensive Income Other Tax OtherComprehensiveIncomeOtherTax	46000	USD
CY2017	pwr	Other Comprehensive Income Other Tax OtherComprehensiveIncomeOtherTax	-347000	USD
CY2015	pwr	Periods Of Cash Flows Before Terminal Value PeriodsOfCashFlowsBeforeTerminalValue	P5Y
CY2016	pwr	Periods Of Cash Flows Before Terminal Value PeriodsOfCashFlowsBeforeTerminalValue	P5Y
CY2017	pwr	Periods Of Cash Flows Before Terminal Value PeriodsOfCashFlowsBeforeTerminalValue	P5Y
CY2015	pwr	Stock Compensation Amount Vested But Deferred StockCompensationAmountVestedButDeferred	0	USD
CY2016	pwr	Stock Compensation Amount Vested But Deferred StockCompensationAmountVestedButDeferred	0	USD
CY2017	pwr	Stock Compensation Amount Vested But Deferred StockCompensationAmountVestedButDeferred	0	USD
CY2017	pwr	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-70100000	USD
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CY2017	pwr	Tax Cutsand Jobs Actof2017 Incomplete Accounting Acceleration Of Certain Deductions Provisional Income Tax Expense TaxCutsandJobsActof2017IncompleteAccountingAccelerationOfCertainDeductionsProvisionalIncomeTaxExpense	8500000	USD
CY2017	pwr	Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Provisional Income Tax Expense Benefit TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateProvisionalIncomeTaxExpenseBenefit	-85300000	USD
CY2017	pwr	Tax Cutsand Jobs Actof2017 Incomplete Accounting Entity Restructuring And Recapitalization Provisional Income Tax Benefit TaxCutsandJobsActof2017IncompleteAccountingEntityRestructuringAndRecapitalizationProvisionalIncomeTaxBenefit	26700000	USD
CY2017	pwr	Unrecognized Tax Benefits Net Increase Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsNetIncreaseResultingFromPriorPeriodTaxPositions	2200000	USD
CY2017	pwr	Workers Compensation Insurance Claims Deductible WorkersCompensationInsuranceClaimsDeductible	5000000	USD
CY2016	us-gaap	Accelerated Share Repurchase Program Adjustment AcceleratedShareRepurchaseProgramAdjustment	0	USD
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CY2017Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	64112000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	862825000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	981275000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-271673000	USD
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CY2015	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	375000	USD
CY2016	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	-3904000	USD
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CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4465000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2800000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2752000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4465000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4500000	USD
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	-1931000	USD
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	1626000	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1300000	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1251000	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1356000	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1400000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1321000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1300000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	34848000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	34800000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	31700000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	31685000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	32200000	USD
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CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	58451000	USD
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CY2017Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	58100000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	58057000	USD
CY2016Q4	us-gaap	Assets Assets	5354059000	USD
CY2017Q4	us-gaap	Assets Assets	6480154000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	2288745000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	2869907000	USD
CY2016Q4	us-gaap	Billings In Excess Of Cost BillingsInExcessOfCost	274846000	USD
CY2017Q4	us-gaap	Billings In Excess Of Cost BillingsInExcessOfCost	433387000	USD
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CY2017Q4	us-gaap	Billings In Excess Of Cost Current BillingsInExcessOfCostCurrent	433387000	USD
CY2016Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	137515000	USD
CY2017Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	155628000	USD
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CY2015	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2016	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2016	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
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CY2016Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	18700000	USD
CY2017Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	51100000	USD
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CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9600000	USD
CY2016Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	3744000	USD
CY2017Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	1704000	USD
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CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	128771000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	112183000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138285000	USD
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CY2017Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	7100000	USD
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CY2016	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-6080000	USD
CY2017	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
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CY2017	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	155219154	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	144710773	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	153342326	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	1000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	2000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	139508000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	221399000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	383256000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10917000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1715000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3247000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	150425000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	223114000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	386503000	USD
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CY2017Q4	us-gaap	Contract Receivable Retainage Due After One Year ContractReceivableRetainageDueAfterOneYear	41900000	USD
CY2016Q4	us-gaap	Contract Receivable Retainage Due One Year Or Less ContractReceivableRetainageDueOneYearOrLess	231000000	USD
CY2017Q4	us-gaap	Contract Receivable Retainage Due One Year Or Less ContractReceivableRetainageDueOneYearOrLess	300500000	USD
CY2015	us-gaap	Cost Of Services CostOfServices	6648771000	USD
CY2016	us-gaap	Cost Of Services CostOfServices	6637519000	USD
CY2017	us-gaap	Cost Of Services CostOfServices	8224618000	USD
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CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	85830000	USD
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CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	44695000	USD
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	21262000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	5076000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	22666000	USD
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CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	122941000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	67662000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	9783000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11549000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	301000	USD
CY2016Q4	us-gaap	Debt Current DebtCurrent	7563000	USD
CY2017Q4	us-gaap	Debt Current DebtCurrent	1220000	USD
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CY2016	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.021
CY2017	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.027
CY2015	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1000000	USD
CY2016	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1000000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	1100000	USD
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CY2017Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	30100000	USD
CY2016Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	17900000	USD
CY2017Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	28700000	USD
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CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-264000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-36915000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Accumulated Amortization DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAccumulatedAmortization	6000000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Accumulated Amortization DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAccumulatedAmortization	7400000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Gross DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross	11400000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Ownshare Lending Arrangement Issuance Costs Gross DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross	12900000	USD
CY2015	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-15073000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-14508000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-10166000	USD
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CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-32130000	USD
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CY2017Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	179381000	USD
CY2016Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	15512000	USD
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CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	917000	USD
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CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	14951000	USD
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CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	155283000	USD
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CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	135955000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	37362000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	62925000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5933000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4747000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1613000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	48516000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	58744000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	17676000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	21681000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	21419000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	79630000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	0	USD
CY2015Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	16100000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14991000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	19328000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	19300000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	182834000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	152991000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	83097000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	49407000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	33566000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	26676000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	24817000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	15154000	USD
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CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	161491000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	17700000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21900000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	26300000	USD
CY2015	us-gaap	Depreciation Depreciation	162800000	USD
CY2015	us-gaap	Depreciation Depreciation	162845000	USD
CY2016	us-gaap	Depreciation Depreciation	170200000	USD
CY2016	us-gaap	Depreciation Depreciation	170240000	USD
CY2017	us-gaap	Depreciation Depreciation	183800000	USD
CY2017	us-gaap	Depreciation Depreciation	183808000	USD
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CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.26
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.00
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-3154000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	220000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1688000	USD
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	194056000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	225193000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5100000	USD
CY2017	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P9Y1M6D
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	297313000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	335507000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	88255000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	39188000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	29764000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	33295000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	35639000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	37038000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	484336000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	598686000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	187023000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	263179000	USD
CY2015	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-2490000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-880000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-409000	USD
CY2016Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	145174000	USD
CY2017Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	170115000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2773000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	734000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	549000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	1552658000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	1603169000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	1868600000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	45186000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	302408000	USD
CY2016	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	5310000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	21312000	USD
CY2015Q4	us-gaap	Goodwill Gross GoodwillGross	1592551000	USD
CY2016Q4	us-gaap	Goodwill Gross GoodwillGross	1642902000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	1966432000	USD
CY2015Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	39893000	USD
CY2016Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	39733000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	97832000	USD
CY2015Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	39800000	USD
CY2017Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	57000000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	57011000	USD
CY2016	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	15000	USD
CY2017	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-1278000	USD
CY2015	us-gaap	Gross Profit GrossProfit	923665000	USD
CY2016Q1	us-gaap	Gross Profit GrossProfit	203313000	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	200217000	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	302582000	USD
CY2016Q4	us-gaap	Gross Profit GrossProfit	307688000	USD
CY2016	us-gaap	Gross Profit GrossProfit	1013800000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	266188000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	302165000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	350631000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	322876000	USD
CY2017	us-gaap	Gross Profit GrossProfit	1241860000	USD
CY2015Q4	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	12100000	USD
CY2015	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	12100000	USD
CY2017Q4	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1100000	USD
CY2017	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	1100000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	6600000	USD
CY2016Q4	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	8000000	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	8000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	120286000	USD
CY2016Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	20496000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	16562000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	48267000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	314978000	USD
CY2016Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	73137000	USD
CY2016Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	88530000	USD
CY2016	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	198725000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	63837000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	89313000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	113561000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	244955000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	349959000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	291031000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	228675000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	307686000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	353757000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-16280000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-42273000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	62726000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	131203000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	200440000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	318225000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.62
CY2016Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.13
CY2016Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.11
CY2016Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.47
CY2016Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.57
CY2016	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.26
CY2017Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.31
CY2017Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.41
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.57
CY2017Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.72
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.02
CY2015	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.62
CY2016Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.13
CY2016Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.11
CY2016Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.47
CY2016Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.57
CY2016	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.26
CY2017Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.31
CY2017Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.41
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.56
CY2017Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.72
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.00
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	190621000	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-342000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	190621000	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-342000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.97
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.97
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-466000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-979000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10945000	USD
CY2015	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	2400000	USD
CY2016	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	-3200000	USD
CY2017	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	-200000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	97472000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107246000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35532000	USD
CY2015	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	6871000	USD
CY2016	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	8586000	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	1504000	USD
CY2015	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1239000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1860000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-16958000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	80036000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	107690000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	123815000	USD
CY2015	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	3838000	USD
CY2016	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	656000	USD
CY2017	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	1354000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	7047000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	1909000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	8727000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	8764000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	13605000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-547000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3326000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1751000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7241000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6479000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17920000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	4438000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-13540000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	3651000	USD
CY2015	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-150470000	USD
CY2016	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-144877000	USD
CY2017	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	425313000	USD
CY2015	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	153017000	USD
CY2016	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	-124680000	USD
CY2017	us-gaap	Increase Decrease In Billing In Excess Of Cost Of Earnings IncreaseDecreaseInBillingInExcessOfCostOfEarnings	139114000	USD
CY2015	us-gaap	Increase Decrease In Cost In Excess Of Billing On Uncompleted Contract IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract	49358000	USD
CY2016	us-gaap	Increase Decrease In Cost In Excess Of Billing On Uncompleted Contract IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract	152702000	USD
CY2017	us-gaap	Increase Decrease In Cost In Excess Of Billing On Uncompleted Contract IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract	-15999000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	33524000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9905000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-14110000	USD
CY2015	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-222108000	USD
CY2016	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	49228000	USD
CY2017	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	241180000	USD
CY2015	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	7311000	USD
CY2016	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	81792000	USD
CY2017	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	29722000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-11707000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-13743000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	17267000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-5899000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-25133000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	32079000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-214000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	1119000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	2566000	USD
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	7000	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1031000	shares
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	187023000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	263179000	USD
CY2015	us-gaap	Interest Expense InterestExpense	8024000	USD
CY2016	us-gaap	Interest Expense InterestExpense	14887000	USD
CY2017	us-gaap	Interest Expense InterestExpense	20946000	USD
CY2016Q4	us-gaap	Inventory Net InventoryNet	88548000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	80890000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	1493000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	2423000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	832000	USD
CY2016Q4	us-gaap	Land Land	45919000	USD
CY2017Q4	us-gaap	Land Land	48832000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	208500000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	242300000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	276200000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	2011357000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	2684525000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5354059000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6480154000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1205228000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1492067000	USD
CY2016Q4	us-gaap	Line Of Credit LineOfCredit	351341000	USD
CY2017Q4	us-gaap	Line Of Credit LineOfCredit	668427000	USD
CY2015	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	258815000	USD
CY2016	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	458908000	USD
CY2017	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	613130000	USD
CY2015	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	606753000	USD
CY2016	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	518607000	USD
CY2017	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	917895000	USD
CY2017Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	728300000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	358390000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	671941000	USD
CY2016Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	4828000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1220000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	353562000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	761000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	670721000	USD
CY2016Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1634850000	USD
CY2017Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	1834715000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	3275000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	4058000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	800000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2000000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2001000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	463000	USD
CY2015	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	77015000	USD
CY2016	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	85235000	USD
CY2017	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	110082000	USD
CY2015	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	847718000	USD
CY2016	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-7115000	USD
CY2017	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	0	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-1227844000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-133836000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	227764000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-307113000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-266044000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-575825000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	628649000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	390187000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	372475000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10917000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10900000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1715000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1700000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3247000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3200000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	310907000	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	20496000	USD
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	16562000	USD
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	73742000	USD
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	87583000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	198383000	USD
CY2017Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	48267000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	63837000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	89313000	USD
CY2017Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	113561000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	314978000	USD
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	237503000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	320813000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	378849000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	316004000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	115985000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	15883000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	28422000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	49287000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	75556000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	30871000	USD
CY2017Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	17800000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	81998000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	99622000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	101028000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	189866000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-171458000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	23137000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	67404000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-171399000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	23016000	USD
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CY2017	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	2783000	USD
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CY2015	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	7572436000	USD
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CY2016Q2	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	1792430000	USD
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CY2016Q4	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	2102966000	USD
CY2016	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	7651319000	USD
CY2017Q1	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	2178170000	USD
CY2017Q2	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	2200374000	USD
CY2017Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	2609307000	USD
CY2017Q4	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	2478627000	USD
CY2017	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	9466478000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	592863000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	653338000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	777920000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	36939000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	42843000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	46448000	USD
CY2016Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2735000	USD
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
CY2015	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	9379000	USD
CY2016	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1508000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	89604000	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	26941000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	34505000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	29259000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	431000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	425000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	25000	USD
CY2015	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	150000000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	3339427000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3791571000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4525540000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3087815000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3342702000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3795629000	USD
CY2016Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	40765000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	19635000	USD
CY2016	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1876828	shares
CY2016Q4	us-gaap	Treasury Stock Shares Retired TreasuryStockSharesRetired	84800000	shares
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	14288000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	85451000	USD
CY2015	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1456361000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	50000000	USD
CY2016Q4	us-gaap	Unapproved Change Orders Amount UnapprovedChangeOrdersAmount	-137800000	USD
CY2017Q4	us-gaap	Unapproved Change Orders Amount UnapprovedChangeOrdersAmount	-144000000	USD
CY2016Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	206800000	USD
CY2017Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	303900000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50668000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	54541000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35240000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36229000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36200000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	132000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1948000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1171000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1345000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	180000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	673000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	650000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	631000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5340000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4227000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7040000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	292000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2048000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3372000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	8750000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	5539000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	5368000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	1000000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	282000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	300000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	23448000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	23400000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8300000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8252000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	48312000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	33128000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	35561000	USD
CY2015	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	3100000	USD
CY2016	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-1100000	USD
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	4300000	USD
CY2016Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet	3300000	USD
CY2017Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets And Liabilities Net VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet	7800000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	195120000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157288000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	157155000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	195113000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	157287000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	156124000	shares
CY2017	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:174%;padding-top:17px;text-align:justify;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications</font></div><div style="line-height:120%;padding-top:9px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Quanta reclassified certain prior period amounts related to stock-based compensation in the accompanying consolidated statements of cash flows to conform to the current period presentation under a recently adopted accounting update. Additionally, certain reclassifications have been made to Quanta’s prior year’s consolidated statements of operations to conform to classifications in the current year.</font></div></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:17px;text-align:justify;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates and Assumptions</font></div><div style="line-height:120%;padding-top:9px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with US GAAP requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses recognized during the periods presented. Quanta reviews all significant estimates affecting its consolidated financial statements on a recurring basis and records the effect of any necessary adjustments prior to their publication. Judgments and estimates are based on Quanta’s beliefs and assumptions derived from information available at the time such judgments and estimates are made. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of financial statements. Estimates are primarily used in Quanta’s assessment of the allowance for doubtful accounts, valuation of inventory, useful lives of assets, fair value assumptions in analyzing goodwill, other intangibles and long-lived asset impairments, equity and other investments, loan receivables, purchase price allocations, acquisition-related contingent consideration liabilities, liabilities for insurance and other claims and guarantees, multiemployer pension plan withdrawal liabilities, revenue recognition for construction contracts inclusive of contractual change orders and claims, share-based compensation, operating results of reportable segments, as well as the provision for income taxes and the calculation of uncertain tax positions.</font></div></div>

Files In Submission

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$PWR
QUANTA SERVICES, INC. Stock $pwr

2017 Q4 Form 10-K Financial Statement

#000105091518000003 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR QUANTA SERVICES, INC. Stock $pwr

2017 Q4 Form 10-K Financial Statement

#000105091518000003 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PWR
QUANTA SERVICES, INC. Stock $pwr