$GVA
GRANITE CONSTRUCTION INC Stock $gva

$gva Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000143774921007679 Filed on March 30, 2021

Income Statement

Concept	2019 Q4	2018 Q4	2018
Revenue	$885.6M	$836.1M	$3.287B
YoY Change	5.92%	4.35%	9.94%
Cost Of Revenue	$834.4M	$807.2M	$2.952B
YoY Change	3.37%	14.43%	10.17%
Gross Profit	$51.22M	$30.49M	$334.8M
YoY Change	68.0%	-69.72%	20.13%
Gross Profit Margin	5.78%	3.65%	10.19%
Selling, General & Admin	$82.80M	$78.30M	$272.8M
YoY Change	5.75%	35.7%	23.76%
% of Gross Profit	161.64%	256.8%	81.46%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$30.70M	$33.70M	$111.5M
YoY Change	-8.9%	89.33%	68.13%
% of Gross Profit	59.93%	110.52%	33.31%
Operating Expenses	$83.30M	$79.50M	$272.8M
YoY Change	4.78%	37.78%	23.76%
Operating Profit	-$32.08M	-$49.01M	$8.216M
YoY Change	-34.55%	-213.96%	-86.86%
Interest Expense	-$2.900M	-$1.200M	$14.57M
YoY Change	141.67%	-233.33%	34.92%
% of Operating Profit			177.35%
Other Income/Expense, Net	$2.900M	-$500.0K	$112.0K
YoY Change	-680.0%	-126.32%	-98.05%
Pretax Income	-$28.90M	-$42.40M	$8.328M
YoY Change	-31.84%	-485.45%	-87.8%
Income Tax	-$8.900M	-$10.20M	-$3.208M
% Of Pretax Income			-38.52%
Net Earnings	-$19.38M	-$52.68M	$582.0K
YoY Change	-63.21%	-260.73%	-98.29%
Net Earnings / Revenue	-2.19%	-6.3%	0.02%
Basic Earnings Per Share	-$0.42	-$1.12	$0.01
Diluted Earnings Per Share	-$0.42	-$1.12	$0.01
COMMON SHARES
Basic Shares Outstanding	46.74M	46.90M	43.56M
Diluted Shares Outstanding			44.03M

Balance Sheet

Concept	2019 Q4	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments	$483.2M	$534.2M	$534.2M
YoY Change	-9.55%	-2.75%	-2.75%
Cash & Equivalents	$252.3M	$272.8M	$272.8M
Short-Term Investments	$220.9M	$261.4M	$261.4M
Other Short-Term Assets	$46.02M	$48.71M	$48.70M
YoY Change	-5.53%	33.4%	33.42%
Inventory	$88.89M	$88.62M	$88.60M
Prepaid Expenses
Receivables	$758.9M	$669.0M	$669.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.377B	$1.341B	$1.341B
YoY Change	2.72%	8.8%	8.8%
LONG-TERM ASSETS
Property, Plant & Equipment	$542.3M	$549.7M	$549.7M
YoY Change	-1.34%	34.92%	34.93%
Goodwill	$264.3M	$259.5M
YoY Change	1.85%	382.3%
Intangibles
YoY Change
Long-Term Investments	$84.18M	$84.35M	$120.5M
YoY Change	-0.21%	-18.5%	16.43%
Other Assets	$106.7M	$126.9M	$104.2M
YoY Change	-15.91%	68.74%	76.61%
Total Long-Term Assets	$1.125B	$1.087B	$1.087B
YoY Change	3.54%	69.81%	69.82%
TOTAL ASSETS
Total Short-Term Assets	$1.377B	$1.341B	$1.341B
Total Long-Term Assets	$1.125B	$1.087B	$1.087B
Total Assets	$2.502B	$2.427B	$2.427B
YoY Change	3.09%	29.66%	29.66%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$400.8M	$256.8M	$256.8M
YoY Change	56.09%	8.03%	8.04%
Accrued Expenses	$337.3M	$324.4M	$324.4M
YoY Change	3.98%	37.23%	37.23%
Deferred Revenue	$95.74M	$109.0M
YoY Change	-12.18%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$8.244M	$47.29M	$47.30M
YoY Change	-82.57%	2.69%	2.83%
Total Short-Term Liabilities	$842.1M	$737.4M	$737.4M
YoY Change	14.19%	12.54%	12.53%
LONG-TERM LIABILITIES
Long-Term Debt	$356.1M	$335.1M	$335.1M
YoY Change	6.26%	87.79%	87.73%
Other Long-Term Liabilities	$63.14M	$61.08M	$61.10M
YoY Change	3.37%	38.55%	38.55%
Total Long-Term Liabilities	$419.2M	$396.2M	$396.2M
YoY Change	5.82%	78.04%	77.99%
TOTAL LIABILITIES
Total Short-Term Liabilities	$842.1M	$737.4M	$737.4M
Total Long-Term Liabilities	$419.2M	$396.2M	$396.2M
Total Liabilities	$1.261B	$1.134B	$1.183B
YoY Change	11.26%	29.14%	27.67%
SHAREHOLDERS EQUITY
Retained Earnings	$594.4M	$679.5M
YoY Change	-12.52%	-13.3%
Common Stock	$549.8M	$565.0M
YoY Change	-2.7%	251.44%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.141B	$1.244B	$1.244B
YoY Change
Total Liabilities & Shareholders Equity	$2.502B	$2.427B	$2.427B
YoY Change	3.09%	29.66%	29.66%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	-$19.38M	-$52.68M	$582.0K
YoY Change	-63.21%	-260.73%	-98.29%
Depreciation, Depletion And Amortization	$30.70M	$33.70M	$111.5M
YoY Change	-8.9%	89.33%	68.13%
Cash From Operating Activities	$137.9M	$71.70M	$86.39M
YoY Change	92.33%	-12.13%	-40.91%
INVESTING ACTIVITIES
Capital Expenditures	-$23.50M	-$25.00M	$111.1M
YoY Change	-6.0%	129.36%	64.12%
Acquisitions			$55.03M
YoY Change
Other Investing Activities	$28.40M	$66.70M	$2.568M
YoY Change	-57.42%	-825.0%	-190.11%
Cash From Investing Activities	$4.900M	$41.70M	-$39.60M
YoY Change	-88.25%	-307.46%	-33.1%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$16.56M
YoY Change			137.31%
Debt Paid & Issued, Net			$153.9M
YoY Change			242.05%
Cash From Financing Activities	-65.00M	-70.60M	-$1.874M
YoY Change	-7.93%	430.83%	-95.6%
NET CHANGE
Cash From Operating Activities	137.9M	71.70M	$86.39M
Cash From Investing Activities	4.900M	41.70M	-$39.60M
Cash From Financing Activities	-65.00M	-70.60M	-$1.874M
Net Change In Cash	77.80M	42.80M	$44.92M
YoY Change	81.78%	-11.2%	1.2%
FREE CASH FLOW
Cash From Operating Activities	$137.9M	$71.70M	$86.39M
Capital Expenditures	-$23.50M	-$25.00M	$111.1M
Free Cash Flow	$161.4M	$96.70M	-$24.71M
YoY Change	66.91%	4.54%	-131.48%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019Q4	us-gaap	Restricted Cash RestrictedCash	5835000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	5825000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	1512000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	5835000	USD
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CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2100000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2020	us-gaap	Number Of Reporting Units NumberOfReportingUnits	8	pure
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CY2020Q4	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	0	USD
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CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	540812000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	547417000	USD
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CY2018	us-gaap	Profit Loss ProfitLoss	11536000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-4155000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-2963000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-451000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1816000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	323000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	214000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2339000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3286000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-665000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-51000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	1390000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-718000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2390000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1896000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1383000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-168571000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-58598000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	10153000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-21064000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3489000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10954000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-147507000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-62087000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-801000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	921147000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	11536000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1383000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	14784000	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	6564000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	9994000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	23309000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	321123000	USD
CY2018	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	53023000	USD
CY2018	gva	Adjustments To Additional Paid In Capital Premium On Convertible Notes AdjustmentsToAdditionalPaidInCapitalPremiumOnConvertibleNotes	30702000	USD
CY2018	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-13075000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	978000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1289354000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-56702000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1896000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	0	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	10213000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4067000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	32834000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	24166000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	10444000	USD
CY2019	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-12168000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	777000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1178416000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-166181000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2390000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	6377000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	885000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	23734000	USD
CY2020	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	65000	USD
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	308000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	991610000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-166181000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-56702000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	11536000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	112958000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	121993000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	111544000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	8693000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1425000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	6930000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	18703000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	4910000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8817000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-22924000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12110000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	6377000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	10213000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	14784000	USD
CY2020	gva	Unconsolidated Construction Joint Venture Net Income Loss UnconsolidatedConstructionJointVentureNetIncomeLoss	-51486000	USD
CY2019	gva	Unconsolidated Construction Joint Venture Net Income Loss UnconsolidatedConstructionJointVentureNetIncomeLoss	-120632000	USD
CY2018	gva	Unconsolidated Construction Joint Venture Net Income Loss UnconsolidatedConstructionJointVentureNetIncomeLoss	-44689000	USD
CY2020	gva	Company Owned Life Insurance Net Income Loss CompanyOwnedLifeInsuranceNetIncomeLoss	8783000	USD
CY2019	gva	Company Owned Life Insurance Net Income Loss CompanyOwnedLifeInsuranceNetIncomeLoss	11454000	USD
CY2018	gva	Company Owned Life Insurance Net Income Loss CompanyOwnedLifeInsuranceNetIncomeLoss	6935000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	156690000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1729000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4020000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4916000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-6840000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	58947000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	9247000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-123670000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	40084000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-11384000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5136000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-380000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2120000	USD
CY2020	gva	Equity In Construction Joint Ventures EquityInConstructionJointVentures	50878000	USD
CY2019	gva	Equity In Construction Joint Ventures EquityInConstructionJointVentures	83765000	USD
CY2018	gva	Equity In Construction Joint Ventures EquityInConstructionJointVentures	104333000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	11065000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	19064000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	16922000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1035000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3928000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-21619000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-40999000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	140027000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-21456000	USD
CY2020	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	49805000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-9809000	USD
CY2018	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-14113000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	268460000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	111438000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	86390000	USD
CY2020	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	9996000	USD
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	-0	USD
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	9952000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	10000000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	30000000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	75000000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	24996000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	93253000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	106828000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	111101000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16702000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	37091000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16238000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-0	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	6227000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	55027000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	5000000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	47812000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5289000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5642000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2568000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-41262000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-40322000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-39598000	USD
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	50000000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	105574000	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	203250000	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	230000000	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	11500000	USD
CY2018	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
CY2020	gva	Payments For Equity Derivative Instrument Net Of Fees PaymentsForEquityDerivativeInstrumentNetOfFees	-0	USD
CY2019	gva	Payments For Equity Derivative Instrument Net Of Fees PaymentsForEquityDerivativeInstrumentNetOfFees	37375000	USD
CY2018	gva	Payments For Equity Derivative Instrument Net Of Fees PaymentsForEquityDerivativeInstrumentNetOfFees	-0	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	83433000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	313150000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	153924000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	23712000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	24316000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	22424000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	885000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	36900000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	16557000	USD
CY2020	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	11875000	USD
CY2019	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	68000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	200000	USD
CY2020	gva	Distributions To Noncontrolling Partners Net DistributionsToNoncontrollingPartnersNet	11810000	USD
CY2019	gva	Distributions To Noncontrolling Partners Net DistributionsToNoncontrollingPartnersNet	12235000	USD
CY2018	gva	Distributions To Noncontrolling Partners Net DistributionsToNoncontrollingPartnersNet	13275000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	-0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6507000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	-0	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	307000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	1704000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	856000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-57658000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-81637000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1874000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	169540000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-10521000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	44918000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	268108000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	278629000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	233711000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	437648000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	268108000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	278629000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	10000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	25360000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	21654000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	18660000	USD
CY2018	us-gaap	Operating Lease Payments OperatingLeasePayments	0	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	18753000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	17322000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	14864000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2805000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	11898000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	19069000	USD
CY2020	gva	Performance Guarantees PerformanceGuarantees	350000	USD
CY2019	gva	Performance Guarantees PerformanceGuarantees	-6284000	USD
CY2018	gva	Performance Guarantees PerformanceGuarantees	0	USD
CY2020	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	37375000	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2020	gva	Restricted Stock Units Issued Net Of Forfeitures RestrictedStockUnitsIssuedNetOfForfeitures	4449000	USD
CY2019	gva	Restricted Stock Units Issued Net Of Forfeitures RestrictedStockUnitsIssuedNetOfForfeitures	8596000	USD
CY2018	gva	Restricted Stock Units Issued Net Of Forfeitures RestrictedStockUnitsIssuedNetOfForfeitures	13728000	USD
CY2020	gva	Dividends Accrued DividendsAccrued	5937000	USD
CY2019	gva	Dividends Accrued DividendsAccrued	5915000	USD
CY2018	gva	Dividends Accrued DividendsAccrued	6068000	USD
CY2020	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	0	USD
CY2019	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	0	USD
CY2018	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	321019000	USD
CY2020	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	0	USD
CY2019	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	0	USD
CY2018	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	53086000	USD
CY2020	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2019	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2018	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	30702000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<i>Use of Estimates in the Preparation of Financial Statements</i>: The financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The preparation of these financial statements requires management to make estimates that affect the reported amounts of assets and liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. Our estimates and related judgments and assumptions are continually evaluated based on available information and experiences; however, actual amounts could differ from those estimates.
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2900000000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	3700000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	268108000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	278629000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	233711000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	436136000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	262273000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	272804000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	1512000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	5835000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	5825000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	437648000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	268108000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	278629000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	169540000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-10521000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	44918000	USD
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<i>Concentrations of Credit Risk:</i> Financial instruments, which potentially subject us to concentrations of credit risk, consist primarily of cash and cash equivalents, marketable securities, accounts receivable and contract assets. We maintain our cash and cash equivalents and our marketable securities with several financial institutions. We invest with high credit quality financial institutions and, by policy, limit the amount of credit exposure to any <em style="font: inherit;">one</em> financial institution. <em style="font: inherit;">None</em> of our customers, including both prime and subcontractor arrangements, had revenue that individually exceeded <em style="font: inherit;">10%</em> of total revenue during the years ended <em style="font: inherit;"> December 31,</em> <em style="font: inherit;">2020</em> and <em style="font: inherit;">2019</em>. The majority of our receivables are from customers concentrated in the United States. <em style="font: inherit;">None</em> of our customers had a receivable balance in excess of <em style="font: inherit;">10%</em> of our total net receivables as of <em style="font: inherit;"> December 31,</em> <em style="font: inherit;">2020</em> and <em style="font: inherit;">2019</em>. Certain construction contracts include retention provisions that were included in contract assets as of <em style="font: inherit;"> December 31,</em> <em style="font: inherit;">2020</em> and <em style="font: inherit;">2019</em> in our consolidated balance sheets. The balances billed but <em style="font: inherit;">not</em> paid by customers pursuant to these provisions generally become due upon completion and acceptance of the project work or products by the owners. As of <em style="font: inherit;"> December 31,</em> <em style="font: inherit;">2020</em> and <em style="font: inherit;">2019</em>, <em style="font: inherit;">no</em> contract retention receivable individually exceeded <em style="font: inherit;">15%</em> of total contract assets at any of the presented dates. The majority of the contract retention balance is expected to be collected within <em style="font: inherit;">one</em> year. We perform ongoing credit evaluations of our customers and generally do <em style="font: inherit;">not</em> require collateral, although the law provides us the ability to file mechanics’ liens on real property improved for private customers in the event of non-payment by such customers.
CY2020	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	7400000	USD
CY2019	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	1200000	USD
CY2018	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	4400000	USD
CY2020	gva	Change In Loss Assumptions Potential Effect For General Liability And Workers Compensation ChangeInLossAssumptionsPotentialEffectForGeneralLiabilityAndWorkersCompensation	1000000.0	USD
CY2020	gva	Change In Loss Assumptions Potential Effect For Medical Insurance ChangeInLossAssumptionsPotentialEffectForMedicalInsurance	300000	USD
CY2020	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<i>Performance Guarantees:</i> The agreements with our joint venture partners (“partner(s)”) for both construction joint ventures and line item joint ventures define each partner’s management role and financial responsibility in the project. The amount of operational exposure is generally limited to our stated ownership interest. However, due to the joint and several nature of the performance obligations under the related owner contracts, if any of the partners fail to perform, we and the remaining partners, if any, would be responsible for performance of the outstanding work (i.e., we provide a performance guarantee). We estimate our liability for performance guarantees for our unconsolidated and line item joint ventures using estimated partner bond rates, which are Level <em style="font: inherit;">2</em> inputs, and include them in accrued expenses and other current liabilities with a corresponding increase in equity in construction joint ventures in the consolidated balance sheets. We reassess our liability when and if changes in circumstances occur. The liability and corresponding asset are removed from the consolidated balance sheets upon completion and customer acceptance of the project. Circumstances that could lead to a loss under these agreements beyond our stated ownership interest include the failure of a partner to contribute additional funds to the venture in the event the project incurs a loss or additional costs that we could incur should a partner fail to provide the services and resources that it had committed to provide in the agreement. We are <em style="font: inherit;">not</em> able to estimate amounts that <em style="font: inherit;"> may </em>be required beyond the remaining cost of the work to be performed. These costs could be offset by billings to the customer or by proceeds from our partners’ corporate and/or other guarantees.
CY2020	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<i>Reclassifications:</i> Certain reclassifications of prior period amounts have been made to conform to the current period presentation. The reclassification included $1.4 million during <em style="font: inherit;">2019</em> of amortization related to the <em style="font: inherit;">2.75%</em> Convertible Notes previously included within total depreciation, depletion and amortization on the statements of cash flows<i>.</i> The reclassification had <em style="font: inherit;">no</em> impact on previously reported consolidated operating income or net income, on the consolidated balance sheets or on the statements of cash flows.
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3499606000	USD
CY2018	gva	Business Acquisitions Pro Forma Profit Loss BusinessAcquisitionsProFormaProfitLoss	62480000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	51526000	USD
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.12
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.15
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3562459000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3445606000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3287031000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2929952000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	3717228000	USD
CY2020	gva	Contract With Customer Liability Revenue Recognized During Period ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod	118200000	USD
CY2019	gva	Contract With Customer Liability Revenue Recognized During Period ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod	125400000	USD
CY2018	gva	Contract With Customer Liability Revenue Recognized During Period ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod	105900000	USD
CY2020Q4	gva	Aggregate Affirmative Claim Recovery Estimate Included In Contract Asset And Liability AggregateAffirmativeClaimRecoveryEstimateIncludedInContractAssetAndLiability	37700000	USD
CY2019Q4	gva	Aggregate Affirmative Claim Recovery Estimate Included In Contract Asset And Liability AggregateAffirmativeClaimRecoveryEstimateIncludedInContractAssetAndLiability	71100000	USD
CY2020Q4	gva	Costs In Excess Of Billings And Estimated Earnings CostsInExcessOfBillingsAndEstimatedEarnings	39300000	USD
CY2019Q4	gva	Costs In Excess Of Billings And Estimated Earnings CostsInExcessOfBillingsAndEstimatedEarnings	100761000	USD
CY2020Q4	gva	Contract With Customer Retention ContractWithCustomerRetention	125639000	USD
CY2019Q4	gva	Contract With Customer Retention ContractWithCustomerRetention	110680000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	164939000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	211441000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	211441000	USD
CY2020	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	743976000	USD
CY2020	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-50216000	USD
CY2020	gva	Contract With Customer Asset Increase Decrease For Billings ContractWithCustomerAssetIncreaseDecreaseForBillings	-685256000	USD
CY2020	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract	-55006000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	164939000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	184247000	USD
CY2019	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	1078884000	USD
CY2019	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-91301000	USD
CY2019	gva	Contract With Customer Asset Increase Decrease For Billings ContractWithCustomerAssetIncreaseDecreaseForBillings	-923602000	USD
CY2019	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract	-36787000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	211441000	USD
CY2020Q4	gva	Advance Payments And Billings In Excess Of Costs Incurred AdvancePaymentsAndBillingsInExcessOfCostsIncurred	143623000	USD
CY2019Q4	gva	Advance Payments And Billings In Excess Of Costs Incurred AdvancePaymentsAndBillingsInExcessOfCostsIncurred	86736000	USD
CY2020Q4	us-gaap	Provision For Loss On Contracts ProvisionForLossOnContracts	27698000	USD
CY2019Q4	us-gaap	Provision For Loss On Contracts ProvisionForLossOnContracts	9001000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	171321000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	95737000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	95737000	USD
CY2020	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	-2008945000	USD
CY2020	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	3214000	USD
CY2020	gva	Contract With Customer Liability Increase Decrease For Billings ContractWithCustomerLiabilityIncreaseDecreaseForBillings	2062619000	USD
CY2020	gva	Contract With Customer Liability Change In Provision For Loss ContractWithCustomerLiabilityChangeInProvisionForLoss	18696000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	171321000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	109011000	USD
CY2019	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	-1629377000	USD
CY2019	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-13910000	USD
CY2019	gva	Contract With Customer Liability Increase Decrease For Billings ContractWithCustomerLiabilityIncreaseDecreaseForBillings	1628464000	USD
CY2019	gva	Contract With Customer Liability Change In Provision For Loss ContractWithCustomerLiabilityChangeInProvisionForLoss	1549000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	95737000	USD
CY2020Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	3300000	USD
CY2018Q2	us-gaap	Derivative Liability Notional Amount DerivativeLiabilityNotionalAmount	150000000.0	USD
CY2020Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	544262000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	547791000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3450000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	374000	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	540812000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	547417000	USD
CY2019Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	1400000	USD
CY2020Q4	gva	Contract Value Of Active Construction Joint Venture Projects ContractValueOfActiveConstructionJointVentureProjects	3400000000	USD
CY2020Q4	gva	Unconsolidated Construction Joint Venture Cash Cash Equivalents And Marketable Securities UnconsolidatedConstructionJointVentureCashCashEquivalentsAndMarketableSecurities	181889000	USD
CY2019Q4	gva	Unconsolidated Construction Joint Venture Cash Cash Equivalents And Marketable Securities UnconsolidatedConstructionJointVentureCashCashEquivalentsAndMarketableSecurities	179049000	USD
CY2020Q4	gva	Unconsolidated Construction Joint Venture Other Current Assets UnconsolidatedConstructionJointVentureOtherCurrentAssets	767803000	USD
CY2019Q4	gva	Unconsolidated Construction Joint Venture Other Current Assets UnconsolidatedConstructionJointVentureOtherCurrentAssets	972840000	USD
CY2020Q4	gva	Unconsolidated Construction Joint Venture Assets Noncurrent Assets UnconsolidatedConstructionJointVentureAssetsNoncurrentAssets	164022000	USD
CY2019Q4	gva	Unconsolidated Construction Joint Venture Assets Noncurrent Assets UnconsolidatedConstructionJointVentureAssetsNoncurrentAssets	207584000	USD
CY2020Q4	gva	Unconsolidated Construction Joint Venture Current Liabilities UnconsolidatedConstructionJointVentureCurrentLiabilities	482562000	USD
CY2019Q4	gva	Unconsolidated Construction Joint Venture Current Liabilities UnconsolidatedConstructionJointVentureCurrentLiabilities	581199000	USD
CY2020Q4	gva	Equity In Construction Joint Ventures Current Assets Excluding Deficit In Equity EquityInConstructionJointVenturesCurrentAssetsExcludingDeficitInEquity	106335000	USD
CY2019Q4	gva	Equity In Construction Joint Ventures Current Assets Excluding Deficit In Equity EquityInConstructionJointVenturesCurrentAssetsExcludingDeficitInEquity	116911000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	75287000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	84176000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	527016000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	542297000	USD
CY2020	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	98300000	USD
CY2019	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	101900000	USD
CY2018	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	96400000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	6000000.0	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	3900000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	17900000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1490218000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1459485000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	963202000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	917188000	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	17900000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	21750000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	21792000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	2484000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	899000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1521000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	2061000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1140000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1120000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	23853000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	21750000	USD
CY2019Q4	gva	Finite Lived Intangible Assets Liabilities Accumulated Amortization FiniteLivedIntangibleAssetsLiabilitiesAccumulatedAmortization	44550000	USD
CY2020Q4	gva	Finite Lived Intangible Assets Liabilities Accumulated Amortization FiniteLivedIntangibleAssetsLiabilitiesAccumulatedAmortization	49600000	USD
CY2020Q4	gva	Finite Lived Intangible Assets Liabilities Net FiniteLivedIntangibleAssetsLiabilitiesNet	32947000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	97946000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	50889000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	47057000	USD
CY2019Q4	gva	Finite Lived Intangible Liabilities Gross FiniteLivedIntangibleLiabilitiesGross	6773000	USD
CY2019Q4	gva	Finite Lived Intangible Liabilities Accumulated Amortization FiniteLivedIntangibleLiabilitiesAccumulatedAmortization	6339000	USD
CY2019Q4	gva	Finite Lived Intangible Liabilities Net FiniteLivedIntangibleLiabilitiesNet	434000	USD
CY2019Q4	gva	Finite Lived Intangible Assets Liabilities Gross FiniteLivedIntangibleAssetsLiabilitiesGross	91173000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	116777000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	264279000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	89247000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	56255000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	32992000	USD
CY2020Q4	gva	Finite Lived Intangible Liabilities Gross FiniteLivedIntangibleLiabilitiesGross	6700000	USD
CY2020Q4	gva	Finite Lived Intangible Liabilities Accumulated Amortization FiniteLivedIntangibleLiabilitiesAccumulatedAmortization	6655000	USD
CY2020Q4	gva	Finite Lived Intangible Liabilities Net FiniteLivedIntangibleLiabilitiesNet	45000	USD
CY2020Q4	gva	Finite Lived Intangible Assets Liabilities Gross FiniteLivedIntangibleAssetsLiabilitiesGross	82547000	USD
CY2019Q4	gva	Finite Lived Intangible Assets Liabilities Net FiniteLivedIntangibleAssetsLiabilitiesNet	46623000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	13500000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	18900000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15200000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	10300000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	6200000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4400000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4100000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2400000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	5500000	USD
CY2020Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	65404000	USD
CY2019Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	54790000	USD
CY2020Q4	gva	Deficits In Unconsolidated Joint Ventures Current DeficitsInUnconsolidatedJointVenturesCurrent	82463000	USD
CY2019Q4	gva	Deficits In Unconsolidated Joint Ventures Current DeficitsInUnconsolidatedJointVenturesCurrent	76199000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	114082000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	70239000	USD
CY2020Q4	gva	Guaranty Liabilities Current GuarantyLiabilitiesCurrent	82280000	USD
CY2019Q4	gva	Guaranty Liabilities Current GuarantyLiabilitiesCurrent	81929000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	60268000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	54143000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	404497000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	337300000	USD
CY2020Q4	gva	Longterm Debt Other LongtermDebtOther	7247000	USD
CY2019Q4	gva	Longterm Debt Other LongtermDebtOther	6906000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	338800000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	364352000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	8278000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	8244000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	330522000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	356108000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	8500000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	8500000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	117300000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	231100000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1100000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	6800000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	21700000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	18900000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0388	pure
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	21501000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	19192000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	13014000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	7405000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3451000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	9976000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	74539000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	8788000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	65751000	USD
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.50	pure
CY2020	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06	pure
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	17600000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16400000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13400000	USD
CY2020	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	39470000	USD
CY2019	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	45029000	USD
CY2018	us-gaap	Multiemployer Plan Employer Contribution Cost MultiemployerPlanEmployerContributionCost	43911000	USD
CY2020	gva	Multiemployer Plans Maximum Percent Funded Status For Red Zone MultiemployerPlansMaximumPercentFundedStatusForRedZone	0.65	pure
CY2020	gva	Multiemployer Plans Maximum Percent Funded Status For Orange Zone MultiemployerPlansMaximumPercentFundedStatusForOrangeZone	0.80	pure
CY2020	gva	Multiemployer Plans Maximum Percent Funded Status For Yellow Zone MultiemployerPlansMaximumPercentFundedStatusForYellowZone	0.80	pure
CY2020	gva	Multiemployer Plans Maximum Percent Funded Status For Green Zone MultiemployerPlansMaximumPercentFundedStatusForGreenZone	0.80	pure
CY2020Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	1094796
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	496192
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
CY2020Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1160973
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.18
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.29
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.18
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.29
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2020	gva	Share Price Potential Dilutive Effect Minimum SharePricePotentialDilutiveEffectMinimum	31.47
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-145117000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-60191000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	582000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45614000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	46559000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	43564000
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	461000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45614000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46559000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44025000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-176448000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-72765000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	14243000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	9985000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-4313000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-5915000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-166463000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-77078000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8328000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.140	pure
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	654000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-9017000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-5862000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-15970000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7941000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-17731000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	12037000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-1076000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-23593000	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-3933000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-443000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	700000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2052000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3456000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	644000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1609000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-2756000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	136000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	7340000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	606000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-951000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1367000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-535000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	-815000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	5973000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	71000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-282000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20376000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3208000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-34957000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-16186000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1749000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1696000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.010	pure
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2905000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.038	pure
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1163000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	1374000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	-0.008	pure
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	-0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	-0	pure
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	182000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.022	pure
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-1096000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.007	pure
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-932000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	0.012	pure
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-951000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.114	pure
CY2020	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	-4423000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.027	pure
CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	733000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.010	pure
CY2018	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	2289000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.275	pure
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1073000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.006	pure
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2171000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.028	pure
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	4842000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.582	pure
CY2020	gva	Effective Income Tax Rate Reconciliation Noncash Impairment Charges EffectiveIncomeTaxRateReconciliationNoncashImpairmentCharges	32905000	USD
CY2020	gva	Effective Income Tax Rate Reconciliation Noncash Impairment Charges Percent EffectiveIncomeTaxRateReconciliationNoncashImpairmentChargesPercent	-0.198	pure
CY2019	gva	Effective Income Tax Rate Reconciliation Noncash Impairment Charges EffectiveIncomeTaxRateReconciliationNoncashImpairmentCharges	0	USD
CY2019	gva	Effective Income Tax Rate Reconciliation Noncash Impairment Charges Percent EffectiveIncomeTaxRateReconciliationNoncashImpairmentChargesPercent	0	pure
CY2018	gva	Effective Income Tax Rate Reconciliation Noncash Impairment Charges EffectiveIncomeTaxRateReconciliationNoncashImpairmentCharges	0	USD
CY2018	gva	Effective Income Tax Rate Reconciliation Noncash Impairment Charges Percent EffectiveIncomeTaxRateReconciliationNoncashImpairmentChargesPercent	0	pure
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0	pure
CY2019	gva	Effective Income Tax Rate Reconciliation Nondeductible Expense Company Owned Life Insurance Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseCompanyOwnedLifeInsuranceAmount	870000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.011	pure
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	410000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.049	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-815000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.098	pure
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-1781000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.011	pure
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-912000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.012	pure
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-772000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.093	pure
CY2020	gva	Effective Income Tax Rate Reconciliation Capital Loss Expiration EffectiveIncomeTaxRateReconciliationCapitalLossExpiration	0	USD
CY2020	gva	Effective Income Tax Rate Reconciliation Capital Loss Expiration Percent EffectiveIncomeTaxRateReconciliationCapitalLossExpirationPercent	0	pure
CY2019	gva	Effective Income Tax Rate Reconciliation Capital Loss Expiration EffectiveIncomeTaxRateReconciliationCapitalLossExpiration	0	USD
CY2019	gva	Effective Income Tax Rate Reconciliation Capital Loss Expiration Percent EffectiveIncomeTaxRateReconciliationCapitalLossExpirationPercent	0	pure
CY2018	gva	Effective Income Tax Rate Reconciliation Capital Loss Expiration EffectiveIncomeTaxRateReconciliationCapitalLossExpiration	8423000	USD
CY2018	gva	Effective Income Tax Rate Reconciliation Capital Loss Expiration Percent EffectiveIncomeTaxRateReconciliationCapitalLossExpirationPercent	1.012	pure
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	4197000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.025	pure
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1727000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.022	pure
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-6795000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.816	pure
CY2020	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	-3827000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0.023	pure
CY2019	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0	pure
CY2018	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0	pure
CY2020	gva	Effective Income Tax Rate Reconciliation Purchase Price Accounting Amount EffectiveIncomeTaxRateReconciliationPurchasePriceAccountingAmount	0	USD
CY2020	gva	Effective Income Tax Rate Reconciliation Purchase Price Accounting Percent EffectiveIncomeTaxRateReconciliationPurchasePriceAccountingPercent	0	pure
CY2019	gva	Effective Income Tax Rate Reconciliation Purchase Price Accounting Amount EffectiveIncomeTaxRateReconciliationPurchasePriceAccountingAmount	-1308000	USD
CY2019	gva	Effective Income Tax Rate Reconciliation Purchase Price Accounting Percent EffectiveIncomeTaxRateReconciliationPurchasePriceAccountingPercent	0.017	pure
CY2018	gva	Effective Income Tax Rate Reconciliation Purchase Price Accounting Amount EffectiveIncomeTaxRateReconciliationPurchasePriceAccountingAmount	0	USD
CY2018	gva	Effective Income Tax Rate Reconciliation Purchase Price Accounting Percent EffectiveIncomeTaxRateReconciliationPurchasePriceAccountingPercent	0	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	0	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0	pure
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	-7980000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	-95.8	pure
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1541000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009	pure
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-428000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.004	pure
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-11000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002	pure
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-282000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.002	pure
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20376000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.264	pure
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3208000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.385	pure
CY2020Q4	gva	Deferred Tax Assets Receivables DeferredTaxAssetsReceivables	3162000	USD
CY2019Q4	gva	Deferred Tax Assets Receivables DeferredTaxAssetsReceivables	2776000	USD
CY2020Q4	gva	Deferred Tax Assets Insurance DeferredTaxAssetsInsurance	12720000	USD
CY2019Q4	gva	Deferred Tax Assets Insurance DeferredTaxAssetsInsurance	11340000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	11187000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	10498000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	9860000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	2574000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1596000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1084000	USD
CY2020Q4	gva	Deferred Tax Assets Contract Income Recognition DeferredTaxAssetsContractIncomeRecognition	15895000	USD
CY2019Q4	gva	Deferred Tax Assets Contract Income Recognition DeferredTaxAssetsContractIncomeRecognition	22208000	USD
CY2020Q4	gva	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	16342000	USD
CY2019Q4	gva	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	19078000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	55000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	72036000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	29622000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	30889000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7331000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4142000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	103471000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	114847000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	48996000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	49676000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	15792000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	18767000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	64788000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	68443000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	38683000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	46404000	USD
CY2019Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	55000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	30889000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	31909000	USD
CY2020	gva	Valuation Allowance Deferred Tax Asset Change In Amount Due To Acquisitions ValuationAllowanceDeferredTaxAssetChangeInAmountDueToAcquisitions	0	USD
CY2019	gva	Valuation Allowance Deferred Tax Asset Change In Amount Due To Acquisitions ValuationAllowanceDeferredTaxAssetChangeInAmountDueToAcquisitions	-716000	USD
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CY2019	gva	Valuation Allowance Deferred Tax Asset Change In Amount Due To Dispositions ValuationAllowanceDeferredTaxAssetChangeInAmountDueToDispositions	0	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	3400000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-304000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	29622000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	30889000	USD
CY2020Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	41500000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23300000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27300000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	6000000.0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	10100000	USD
CY2020Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	1600000	USD
CY2020Q4	gva	Decrease In Unrecognized Tax Benefits That Would Impact Effective Tax Rate Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateIsReasonablyPossible	1400000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27303000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22383000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3171000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	5812000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	20153000	USD
CY2020	gva	Unrecognized Tax Benefits Increase Decrease Resulting From Disposition UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromDisposition	-1590000	USD
CY2019	gva	Unrecognized Tax Benefits Increase Decrease Resulting From Disposition UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromDisposition	0	USD
CY2018	gva	Unrecognized Tax Benefits Increase Decrease Resulting From Disposition UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromDisposition	36000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	-0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	-0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	3000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	157000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	608000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	8000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	195000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1785000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1041000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	781000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23320000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27303000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22383000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	400000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	600000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1100000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	6700000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	8800000	USD
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	3562459000	USD
CY2020	us-gaap	Gross Profit GrossProfit	344788000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	102151000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	3445606000	USD
CY2019	us-gaap	Gross Profit GrossProfit	221678000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	110567000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	3287031000	USD
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CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	100526000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	353320000	USD
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CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	272776000	USD
CY2020	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	53000	USD
CY2019	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	15299000	USD
CY2018	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	61520000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	156690000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	6930000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	18703000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	7672000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-8118000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	5821000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	112000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-166463000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-77078000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8328000	USD
CY2020Q4	us-gaap	Assets Assets	2379996000	USD
CY2019Q4	us-gaap	Assets Assets	2502088000	USD

Files In Submission

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$GVA
GRANITE CONSTRUCTION INC Stock $gva

2019 Q4 Form 10-K Financial Statement

#000143774921007679 Filed on March 30, 2021

Income Statement

Balance Sheet

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Facts In Submission

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$GVA GRANITE CONSTRUCTION INC Stock $gva

2019 Q4 Form 10-K Financial Statement

#000143774921007679 Filed on March 30, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GVA
GRANITE CONSTRUCTION INC Stock $gva