0000077543 false 2020 FY P3Y P3Y P1Y 0.0330579 us-gaap:OtherAssets us-gaap:OtherAssets us-gaap:OtherLiabilitiesNoncurrent us-gaap:OtherLiabilitiesNoncurrent us-gaap:AccruedLiabilitiesCurrent us-gaap:AccruedLiabilitiesCurrent us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember NA NA NA NA NA 0000077543 2020-01-01 2020-12-31 iso4217:USD 0000077543 2020-06-30 xbrli:shares 0000077543 2021-02-19 0000077543 2019-01-01 2019-12-31 0000077543 2018-01-01 2018-12-31 iso4217:USD xbrli:shares 0000077543 us-gaap:VariableInterestEntityPrimaryBeneficiaryMember 2020-12-31 0000077543 us-gaap:VariableInterestEntityPrimaryBeneficiaryMember 2019-12-31 0000077543 2020-12-31 0000077543 2019-12-31 0000077543 2018-12-31 0000077543 2017-12-31 0000077543 us-gaap:CommonStockMember 2017-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0000077543 us-gaap:RetainedEarningsMember 2017-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2017-12-31 0000077543 srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember us-gaap:RetainedEarningsMember 2017-12-31 0000077543 srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember us-gaap:NoncontrollingInterestMember 2017-12-31 0000077543 srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember 2017-12-31 0000077543 us-gaap:RetainedEarningsMember 2018-01-01 2018-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2018-01-01 2018-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-01-01 2018-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2018-01-01 2018-12-31 0000077543 us-gaap:CommonStockMember 2018-01-01 2018-12-31 0000077543 us-gaap:CommonStockMember 2018-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2018-12-31 0000077543 us-gaap:RetainedEarningsMember 2018-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2018-12-31 0000077543 us-gaap:RetainedEarningsMember 2019-01-01 2019-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2019-01-01 2019-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-01-01 2019-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2019-01-01 2019-12-31 0000077543 us-gaap:CommonStockMember 2019-01-01 2019-12-31 0000077543 us-gaap:CommonStockMember 2019-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2019-12-31 0000077543 us-gaap:RetainedEarningsMember 2019-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2019-12-31 0000077543 us-gaap:RetainedEarningsMember 2020-01-01 2020-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2020-01-01 2020-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2020-01-01 2020-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2020-01-01 2020-12-31 0000077543 us-gaap:CommonStockMember 2020-01-01 2020-12-31 0000077543 us-gaap:CommonStockMember 2020-12-31 0000077543 us-gaap:AdditionalPaidInCapitalMember 2020-12-31 0000077543 us-gaap:RetainedEarningsMember 2020-12-31 0000077543 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2020-12-31 0000077543 us-gaap:NoncontrollingInterestMember 2020-12-31 0000077543 srt:MinimumMember 2020-01-01 2020-12-31 0000077543 srt:MaximumMember 2020-01-01 2020-12-31 0000077543 tpc:ConsolidatedEntityExcludingJointVentureMember 2020-12-31 0000077543 tpc:ConsolidatedEntityExcludingJointVentureMember 2019-12-31 0000077543 us-gaap:CorporateJointVentureMember 2020-12-31 0000077543 us-gaap:CorporateJointVentureMember 2019-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2017-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2017-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2017-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-01-01 2018-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2018-01-01 2018-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-01-01 2018-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2018-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-01-01 2019-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2019-01-01 2019-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-01-01 2019-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2019-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2020-01-01 2020-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2020-01-01 2020-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2020-01-01 2020-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2020-12-31 0000077543 us-gaap:AccumulatedTranslationAdjustmentMember 2020-12-31 0000077543 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2020-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2020-01-01 2020-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2019-01-01 2019-12-31 0000077543 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember 2018-01-01 2018-12-31 0000077543 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2020-01-01 2020-12-31 0000077543 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-01-01 2019-12-31 0000077543 us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:MassTransitMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:MassTransitMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:MassTransitMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:BridgesMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:BridgesMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:BridgesMember 2018-01-01 2018-12-31 0000077543 tpc:MilitaryDefenseFacilitiesMember tpc:CivilMember 2020-01-01 2020-12-31 0000077543 tpc:MilitaryDefenseFacilitiesMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 tpc:MilitaryDefenseFacilitiesMember tpc:CivilMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:HighwaysMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:HighwaysMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:HighwaysMember 2018-01-01 2018-12-31 0000077543 tpc:WaterMember tpc:CivilMember 2020-01-01 2020-12-31 0000077543 tpc:WaterMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 tpc:WaterMember tpc:CivilMember 2018-01-01 2018-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:CivilMember 2020-01-01 2020-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:CivilMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember 2018-01-01 2018-12-31 0000077543 tpc:IndustrialAndCommercialMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:IndustrialAndCommercialMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:IndustrialAndCommercialMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:HospitalityAndGamingMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:HospitalityAndGamingMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:HospitalityAndGamingMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:MunicipalAndGovernmentMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:MunicipalAndGovernmentMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:MunicipalAndGovernmentMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:BuildingGroupMember tpc:MassTransitMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingGroupMember tpc:MassTransitMember 2019-01-01 2019-12-31 0000077543 tpc:BuildingGroupMember tpc:MassTransitMember 2018-01-01 2018-12-31 0000077543 tpc:EducationFacilitiesMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:EducationFacilitiesMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:EducationFacilitiesMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:HealthCareFacilitiesMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:HealthCareFacilitiesMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:HealthCareFacilitiesMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:MixedUseMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:MixedUseMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:MixedUseMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MassTransitMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MassTransitMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MassTransitMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:IndustrialAndCommercialMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:IndustrialAndCommercialMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:IndustrialAndCommercialMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MultiUnitResidentialMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MultiUnitResidentialMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MultiUnitResidentialMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:WaterMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:WaterMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:WaterMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MixedUseMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MixedUseMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:MixedUseMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:EducationFacilitiesMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:EducationFacilitiesMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:EducationFacilitiesMember 2018-01-01 2018-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:SpecialtyContractorsMember 2020-01-01 2020-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:SpecialtyContractorsMember 2019-01-01 2019-12-31 0000077543 tpc:ProductsAndServicesOtherMember tpc:SpecialtyContractorsMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:StateAndLocalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:StateAndLocalAgenciesMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:StateAndLocalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:StateAndLocalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:FederalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingGroupMember tpc:FederalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:FederalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:FederalAgenciesMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:PrivateOwnersMember 2020-01-01 2020-12-31 0000077543 tpc:PrivateOwnersMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:PrivateOwnersMember 2020-01-01 2020-12-31 0000077543 tpc:PrivateOwnersMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:StateAndLocalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:StateAndLocalAgenciesMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:StateAndLocalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:StateAndLocalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:FederalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:BuildingGroupMember tpc:FederalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:FederalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:FederalAgenciesMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:PrivateOwnersMember 2019-01-01 2019-12-31 0000077543 tpc:PrivateOwnersMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:PrivateOwnersMember 2019-01-01 2019-12-31 0000077543 tpc:PrivateOwnersMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:StateAndLocalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:StateAndLocalAgenciesMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:StateAndLocalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:StateAndLocalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:FederalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:BuildingGroupMember tpc:FederalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:FederalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:FederalAgenciesMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:PrivateOwnersMember 2018-01-01 2018-12-31 0000077543 tpc:PrivateOwnersMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:PrivateOwnersMember 2018-01-01 2018-12-31 0000077543 tpc:PrivateOwnersMember 2018-01-01 2018-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:CivilMember 2020-01-01 2020-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:SpecialtyContractorsMember 2020-01-01 2020-12-31 0000077543 us-gaap:FixedPriceContractMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:GuaranteedMaximumPriceMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingGroupMember tpc:GuaranteedMaximumPriceMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:GuaranteedMaximumPriceMember 2020-01-01 2020-12-31 0000077543 tpc:GuaranteedMaximumPriceMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember tpc:UnitPriceMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingGroupMember tpc:UnitPriceMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:UnitPriceMember 2020-01-01 2020-12-31 0000077543 tpc:UnitPriceMember 2020-01-01 2020-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:CivilMember 2020-01-01 2020-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:SpecialtyContractorsMember 2020-01-01 2020-12-31 0000077543 tpc:CostPlusFeeAndOtherMember 2020-01-01 2020-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:SpecialtyContractorsMember 2019-01-01 2019-12-31 0000077543 us-gaap:FixedPriceContractMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:GuaranteedMaximumPriceMember 2019-01-01 2019-12-31 0000077543 tpc:BuildingGroupMember tpc:GuaranteedMaximumPriceMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:GuaranteedMaximumPriceMember 2019-01-01 2019-12-31 0000077543 tpc:GuaranteedMaximumPriceMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:UnitPriceMember 2019-01-01 2019-12-31 0000077543 tpc:BuildingGroupMember tpc:UnitPriceMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:UnitPriceMember 2019-01-01 2019-12-31 0000077543 tpc:UnitPriceMember 2019-01-01 2019-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:SpecialtyContractorsMember 2019-01-01 2019-12-31 0000077543 tpc:CostPlusFeeAndOtherMember 2019-01-01 2019-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:CivilMember 2018-01-01 2018-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 us-gaap:FixedPriceContractMember tpc:SpecialtyContractorsMember 2018-01-01 2018-12-31 0000077543 us-gaap:FixedPriceContractMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:GuaranteedMaximumPriceMember 2018-01-01 2018-12-31 0000077543 tpc:BuildingGroupMember tpc:GuaranteedMaximumPriceMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:GuaranteedMaximumPriceMember 2018-01-01 2018-12-31 0000077543 tpc:GuaranteedMaximumPriceMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember tpc:UnitPriceMember 2018-01-01 2018-12-31 0000077543 tpc:BuildingGroupMember tpc:UnitPriceMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:UnitPriceMember 2018-01-01 2018-12-31 0000077543 tpc:UnitPriceMember 2018-01-01 2018-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:CivilMember 2018-01-01 2018-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 tpc:CostPlusFeeAndOtherMember tpc:SpecialtyContractorsMember 2018-01-01 2018-12-31 0000077543 tpc:CostPlusFeeAndOtherMember 2018-01-01 2018-12-31 0000077543 tpc:AlaskanWayViaductMatterMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember 2020-12-31 0000077543 tpc:BuildingGroupMember 2020-12-31 0000077543 tpc:SpecialtyContractorsMember 2020-12-31 0000077543 tpc:CivilMember 2019-12-31 0000077543 tpc:BuildingGroupMember 2019-12-31 0000077543 tpc:SpecialtyContractorsMember 2019-12-31 0000077543 tpc:CivilMember srt:MinimumMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember srt:MaximumMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingAndSpecialtyContractorsMember srt:MinimumMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingAndSpecialtyContractorsMember srt:MaximumMember 2020-01-01 2020-12-31 xbrli:pure 0000077543 us-gaap:StateAndLocalJurisdictionMember 2020-12-31 0000077543 us-gaap:DomesticCountryMember 2020-12-31 0000077543 us-gaap:DomesticCountryMember 2019-12-31 0000077543 us-gaap:StateAndLocalJurisdictionMember 2019-12-31 0000077543 2017-01-01 2017-12-31 0000077543 tpc:CivilMember 2018-12-31 0000077543 tpc:BuildingGroupMember 2018-12-31 0000077543 tpc:SpecialtyContractorsMember 2018-12-31 0000077543 us-gaap:TradeNamesMember 2020-12-31 0000077543 us-gaap:TradeNamesMember 2020-12-31 0000077543 us-gaap:TradeNamesMember 2020-01-01 2020-12-31 0000077543 us-gaap:ContractualRightsMember 2020-12-31 0000077543 us-gaap:CustomerRelationshipsMember 2020-12-31 0000077543 us-gaap:CustomerRelationshipsMember 2020-01-01 2020-12-31 0000077543 tpc:ConstructionContractBacklogMember 2020-12-31 0000077543 tpc:ConstructionContractBacklogMember 2020-01-01 2020-12-31 0000077543 us-gaap:TradeNamesMember 2019-12-31 0000077543 us-gaap:TradeNamesMember 2019-12-31 0000077543 us-gaap:TradeNamesMember 2019-01-01 2019-12-31 0000077543 us-gaap:ContractualRightsMember 2019-12-31 0000077543 us-gaap:CustomerRelationshipsMember 2019-12-31 0000077543 us-gaap:CustomerRelationshipsMember 2019-01-01 2019-12-31 0000077543 tpc:ConstructionContractBacklogMember 2019-12-31 0000077543 tpc:ConstructionContractBacklogMember 2019-01-01 2019-12-31 0000077543 us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2020-12-31 0000077543 us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2019-12-31 0000077543 tpc:TermLoanBMember 2020-12-31 0000077543 tpc:CreditFacility2020Member 2020-12-31 0000077543 tpc:A2017CreditFacilityMember us-gaap:RevolvingCreditFacilityMember 2019-12-31 0000077543 us-gaap:ConvertibleDebtMember 2020-12-31 0000077543 us-gaap:ConvertibleDebtMember 2019-12-31 0000077543 tpc:EquipmentFinancingAndMortgagesMember 2020-12-31 0000077543 tpc:EquipmentFinancingAndMortgagesMember 2019-12-31 0000077543 us-gaap:NotesPayableOtherPayablesMember 2020-12-31 0000077543 us-gaap:NotesPayableOtherPayablesMember 2019-12-31 0000077543 tpc:CreditFacility2020Member us-gaap:RevolvingCreditFacilityMember 2020-12-31 0000077543 tpc:CreditAgreement2020Member tpc:BMOHarrisBankMember us-gaap:LineOfCreditMember 2020-08-18 0000077543 tpc:CreditAgreement2020Member tpc:BMOHarrisBankMember us-gaap:LineOfCreditMember us-gaap:RevolvingCreditFacilityMember 2020-08-18 0000077543 tpc:CreditAgreement2020Member us-gaap:LetterOfCreditMember tpc:BMOHarrisBankMember us-gaap:LineOfCreditMember 2020-08-18 0000077543 tpc:CreditAgreement2020Member tpc:BMOHarrisBankMember us-gaap:LineOfCreditMember us-gaap:BridgeLoanMember 2020-08-18 0000077543 tpc:CreditAgreement2020Member tpc:BMOHarrisBankMember us-gaap:RevolvingCreditFacilityMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:FirstLienMember 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:SecuredDebtMember us-gaap:JuniorLienMember us-gaap:UnsecuredDebtMember 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:UnsecuredDebtMember 2020-08-18 0000077543 tpc:CreditAgreement2020Member tpc:BMOHarrisBankMember us-gaap:FederalFundsEffectiveSwapRateMember 2020-08-18 2020-08-18 0000077543 tpc:CreditAgreement2020Member tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember tpc:TermLoanBMember srt:MinimumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember tpc:TermLoanBMember srt:MaximumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:TermLoanBMember us-gaap:BaseRateMember srt:MinimumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:TermLoanBMember us-gaap:BaseRateMember srt:MaximumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember tpc:TermLoanBMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:TermLoanBMember us-gaap:BaseRateMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember tpc:CreditFacility2020Member srt:MinimumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember tpc:CreditFacility2020Member srt:MaximumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:CreditFacility2020Member us-gaap:BaseRateMember srt:MinimumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:CreditFacility2020Member us-gaap:BaseRateMember srt:MaximumMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember us-gaap:LondonInterbankOfferedRateLIBORMember tpc:CreditFacility2020Member 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:CreditFacility2020Member us-gaap:BaseRateMember 2020-08-18 2020-08-18 0000077543 tpc:BMOHarrisBankMember 2020-08-18 0000077543 tpc:BMOHarrisBankMember tpc:CreditFacility2020Member 2020-12-31 0000077543 tpc:BMOHarrisBankMember tpc:CreditFacility2020Member 2020-08-18 0000077543 tpc:BMOHarrisBankMember srt:ScenarioForecastMember tpc:CreditFacility2020Member 2022-03-31 0000077543 tpc:A2017CreditFacilityMember us-gaap:RevolvingCreditFacilityMember 2020-12-31 0000077543 us-gaap:LetterOfCreditMember tpc:A2017CreditFacilityMember 2020-12-31 0000077543 tpc:A2017CreditFacilityMember us-gaap:BridgeLoanMember 2020-12-31 0000077543 us-gaap:ConvertibleDebtMember 2020-08-19 0000077543 tpc:EquityComponentMember us-gaap:ConvertibleDebtMember 2019-12-31 0000077543 us-gaap:ConvertibleDebtMember tpc:LiabilityComponentMember 2019-12-31 0000077543 us-gaap:ConvertibleDebtMember tpc:LiabilityComponentMember 2019-01-01 2019-12-31 0000077543 tpc:LiabilityComponentMember 2020-12-31 0000077543 tpc:EquityComponentMember 2020-12-31 0000077543 us-gaap:ConvertibleDebtMember tpc:LiabilityComponentMember 2020-12-31 0000077543 us-gaap:ConvertibleDebtMember tpc:LiabilityComponentMember 2020-01-01 2020-12-31 0000077543 tpc:EquityComponentMember us-gaap:ConvertibleDebtMember 2020-12-31 0000077543 us-gaap:PrivatePlacementMember us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2020-12-31 0000077543 us-gaap:PrivatePlacementMember us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2020-01-01 2020-12-31 0000077543 tpc:EquipmentLoanBMember 2020-12-31 0000077543 tpc:EquipmentLoanBMember 2019-12-31 0000077543 tpc:EquipmentLoanBMember srt:MinimumMember 2020-12-31 0000077543 tpc:EquipmentLoanBMember srt:MaximumMember 2020-12-31 0000077543 tpc:EquipmentLoanBMember 2020-01-01 2020-12-31 0000077543 srt:ScenarioForecastMember tpc:EquipmentLoanBMember 2021-12-31 0000077543 srt:ScenarioForecastMember tpc:EquipmentLoanBMember 2022-12-31 0000077543 us-gaap:MortgagesMember 2020-12-31 0000077543 us-gaap:MortgagesMember 2019-12-31 0000077543 us-gaap:MortgagesMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-01-01 2020-12-31 0000077543 us-gaap:MortgagesMember 2020-01-01 2020-12-31 0000077543 us-gaap:MortgagesMember srt:ScenarioForecastMember 2021-12-31 0000077543 us-gaap:MortgagesMember srt:ScenarioForecastMember 2023-12-31 0000077543 us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2020-01-01 2020-12-31 0000077543 us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2019-01-01 2019-12-31 0000077543 us-gaap:SeniorNotesMember tpc:A2017SeniorNotesMember 2018-01-01 2018-12-31 0000077543 tpc:TermLoanBMember 2020-01-01 2020-12-31 0000077543 tpc:CreditFacility2020Member 2020-01-01 2020-12-31 0000077543 tpc:A2017CreditFacilityMember us-gaap:RevolvingCreditFacilityMember 2020-01-01 2020-12-31 0000077543 tpc:A2017CreditFacilityMember us-gaap:RevolvingCreditFacilityMember 2019-01-01 2019-12-31 0000077543 tpc:A2017CreditFacilityMember us-gaap:RevolvingCreditFacilityMember 2018-01-01 2018-12-31 0000077543 us-gaap:ConvertibleDebtMember 2020-01-01 2020-12-31 0000077543 us-gaap:ConvertibleDebtMember 2019-01-01 2019-12-31 0000077543 us-gaap:ConvertibleDebtMember 2018-01-01 2018-12-31 0000077543 tpc:AlaskanWayViaductMatterMember 2020-01-01 2020-12-31 0000077543 tpc:AlaskanWayViaductMatterMember 2018-09-01 2018-09-30 0000077543 tpc:AlaskanWayViaductMatterMember 2016-03-01 2016-03-31 0000077543 tpc:AlaskanWayViaductMatterMember 2016-03-31 0000077543 tpc:AlaskanWayViaductMatterMember 2019-12-13 2019-12-13 0000077543 tpc:AlaskanWayViaductMatterMember 2019-10-01 2019-12-31 0000077543 tpc:GeorgeWashingtonBridgeBusStationMatterMember 2013-08-01 2013-08-31 0000077543 tpc:GeorgeWashingtonBridgeBusStationMatterMember 2015-02-26 2015-02-26 0000077543 tpc:GeorgeWashingtonBridgeBusStationMatterMember 2018-03-31 0000077543 tpc:ReturnOfRetainageByDeveloperMember tpc:GeorgeWashingtonBridgeBusStationMatterMember 2018-03-31 0000077543 tpc:GeorgeWashingtonBridgeBusStationMatterMember 2019-06-04 2019-06-04 0000077543 tpc:GeorgeWashingtonBridgeBusStationMatterMember 2019-12-13 2019-12-13 0000077543 tpc:GeorgeWashingtonBridgeBusStationMatterMember 2018-07-02 0000077543 srt:MinimumMember 2020-12-31 0000077543 srt:MaximumMember 2020-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2020-01-01 2020-12-31 0000077543 tpc:RestrictedStockUnitsAndStockOptionsMember tpc:TutorPeriniCorporationLongTermIncentivePlanMember 2020-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2017-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2017-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2018-01-01 2018-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2018-01-01 2018-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2018-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2018-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2019-01-01 2019-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2019-01-01 2019-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2019-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2019-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2020-01-01 2020-12-31 0000077543 us-gaap:RestrictedStockUnitsRSUMember 2020-12-31 0000077543 us-gaap:EmployeeStockOptionMember 2020-12-31 0000077543 tpc:RestrictedStockUnitsGuaranteedMinimumPayoutsMember 2020-12-31 0000077543 tpc:RestrictedStockUnitsGuaranteedMinimumPayoutsMember 2019-12-31 0000077543 tpc:RestrictedStockUnitsGuaranteedMinimumPayoutsMember 2020-01-01 2020-12-31 0000077543 tpc:RestrictedStockUnitsGuaranteedMinimumPayoutsMember 2019-01-01 2019-12-31 0000077543 tpc:RestrictedStockUnitsGuaranteedMinimumPayoutsMember 2018-01-01 2018-12-31 0000077543 tpc:UnrestrictedStockUnitsMember 2018-01-01 2018-12-31 0000077543 tpc:UnrestrictedStockUnitsMember 2019-01-01 2019-12-31 0000077543 tpc:UnrestrictedStockUnitsMember 2020-01-01 2020-12-31 0000077543 tpc:EmployeeMember 2020-01-01 2020-12-31 0000077543 tpc:EmployeeMember 2019-01-01 2019-12-31 0000077543 tpc:EmployeeMember 2018-01-01 2018-12-31 0000077543 srt:DirectorMember 2020-01-01 2020-12-31 0000077543 srt:DirectorMember 2019-01-01 2019-12-31 0000077543 srt:DirectorMember 2018-01-01 2018-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember 2020-01-01 2020-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000077543 us-gaap:CashMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:CashMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember tpc:DomesticEquitySecuritiesMember 2020-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember tpc:DomesticEquitySecuritiesMember 2019-12-31 0000077543 tpc:InternationalEquitySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 tpc:InternationalEquitySecuritiesMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember us-gaap:FixedIncomeSecuritiesMember 2020-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember us-gaap:FixedIncomeSecuritiesMember 2019-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:CashAndCashEquivalentsMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel2Member us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel2Member us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FixedIncomeFundsMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:MutualFundMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel2Member tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:MutualFundMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:MutualFundMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:MutualFundMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel2Member tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:MutualFundMember tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:MutualFundMember tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel2Member tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel12And3Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel2Member tpc:NonCloselyHeldFundsMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 tpc:NonCloselyHeldFundsMember us-gaap:FairValueInputsLevel12And3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:EquityFundsMember 2019-12-31 0000077543 us-gaap:EquityFundsMember 2020-12-31 0000077543 us-gaap:EquityFundsMember us-gaap:PensionPlansDefinedBenefitMember tpc:CloselyHeldFundsMember 2020-12-31 0000077543 us-gaap:EquityFundsMember us-gaap:PensionPlansDefinedBenefitMember tpc:CloselyHeldFundsMember 2019-12-31 0000077543 us-gaap:HedgeFundsMember 2019-12-31 0000077543 us-gaap:HedgeFundsMember 2020-12-31 0000077543 us-gaap:HedgeFundsMember us-gaap:PensionPlansDefinedBenefitMember tpc:CloselyHeldFundsMember 2020-12-31 0000077543 us-gaap:HedgeFundsMember us-gaap:PensionPlansDefinedBenefitMember tpc:CloselyHeldFundsMember 2019-12-31 0000077543 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:PensionPlansDefinedBenefitMember tpc:CloselyHeldFundsMember 2020-12-31 0000077543 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:PensionPlansDefinedBenefitMember tpc:CloselyHeldFundsMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel1Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel2Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000077543 us-gaap:HedgeFundsMember 2020-12-31 0000077543 us-gaap:HedgeFundsMember 2019-12-31 0000077543 us-gaap:DomesticPlanMember 2020-12-31 0000077543 tpc:BenefitEqualizationPlanMember 2020-12-31 0000077543 us-gaap:DomesticPlanMember 2019-12-31 0000077543 tpc:BenefitEqualizationPlanMember 2019-12-31 0000077543 tpc:PensionHospitalizationAndBenefitPlanOfElectricalIndustryPensionTrustAccountMember 2020-01-01 2020-12-31 0000077543 tpc:PensionHospitalizationAndBenefitPlanOfElectricalIndustryPensionTrustAccountMember 2019-01-01 2019-12-31 0000077543 tpc:PensionHospitalizationAndBenefitPlanOfElectricalIndustryPensionTrustAccountMember 2018-01-01 2018-12-31 0000077543 tpc:ExcavatorsUnionLocal731PensionFundMember 2020-01-01 2020-12-31 0000077543 tpc:ExcavatorsUnionLocal731PensionFundMember 2019-01-01 2019-12-31 0000077543 tpc:ExcavatorsUnionLocal731PensionFundMember 2018-01-01 2018-12-31 0000077543 tpc:CarpentersPensionTrustFundForNorthernCaliforniaMember 2020-01-01 2020-12-31 0000077543 tpc:CarpentersPensionTrustFundForNorthernCaliforniaMember 2019-01-01 2019-12-31 0000077543 tpc:CarpentersPensionTrustFundForNorthernCaliforniaMember 2018-01-01 2018-12-31 0000077543 tpc:NorthernCaliforniaElectricalWorkersPensionPlanMember 2020-01-01 2020-12-31 0000077543 tpc:NorthernCaliforniaElectricalWorkersPensionPlanMember 2019-01-01 2019-12-31 0000077543 tpc:NorthernCaliforniaElectricalWorkersPensionPlanMember 2018-01-01 2018-12-31 0000077543 tpc:LaborersPensionTrustFundForNorthernCaliforniaMember 2020-01-01 2020-12-31 0000077543 tpc:SteamfittersIndustryPensionFundMember 2020-01-01 2020-12-31 0000077543 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2020-12-31 0000077543 us-gaap:FairValueMeasurementsRecurringMember 2020-12-31 0000077543 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000077543 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000077543 us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000077543 us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2020-12-31 0000077543 us-gaap:CorporateDebtSecuritiesMember 2020-12-31 0000077543 us-gaap:CertificatesOfDepositMember 2020-12-31 0000077543 us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000077543 us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-12-31 0000077543 us-gaap:CertificatesOfDepositMember 2019-12-31 0000077543 srt:MaximumMember 2019-01-01 2019-12-31 0000077543 us-gaap:MoneyMarketFundsMember 2020-12-31 0000077543 us-gaap:MunicipalBondsMember 2020-12-31 0000077543 us-gaap:MoneyMarketFundsMember 2019-12-31 0000077543 us-gaap:MunicipalBondsMember 2019-12-31 0000077543 tpc:CivilSegmentJointVentureMember 2019-01-01 2019-12-31 0000077543 us-gaap:CorporateJointVentureMember tpc:CivilSegmentJointVentureMember 2019-12-31 0000077543 tpc:CivilSegmentJointVentureMember 2020-01-01 2020-01-01 0000077543 us-gaap:FairValueMeasurementsNonrecurringMember tpc:CivilSegmentJointVentureMember 2019-01-01 2019-12-31 0000077543 tpc:CivilSegmentJointVentureMember 2019-12-31 0000077543 tpc:CivilSegmentJointVentureMember tpc:ConstructionContractBacklogMember 2019-01-01 2019-12-31 0000077543 us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember 2020-12-31 0000077543 us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember 2019-12-31 0000077543 tpc:PurpleLineExpansionSection2AndSection3Member tpc:OAndGIndustriesIncMember 2020-01-01 2020-12-31 0000077543 us-gaap:ConstructionContractsMember tpc:OAndGIndustriesIncMember 2020-01-01 2020-12-31 0000077543 tpc:ParsonsCorporationMember tpc:NewarkLibertyInternationalAirportTerminalOneProjectMember us-gaap:ScenarioPlanMember 2020-01-01 2020-12-31 0000077543 tpc:ParsonsCorporationMember tpc:NewarkLibertyInternationalAirportTerminalOneProjectMember 2020-01-01 2020-12-31 tpc:segment 0000077543 us-gaap:OperatingSegmentsMember tpc:CivilMember 2020-01-01 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:BuildingGroupMember 2020-01-01 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:SpecialtyContractorsMember 2020-01-01 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember 2020-01-01 2020-12-31 0000077543 tpc:CivilMember us-gaap:IntersegmentEliminationMember 2020-01-01 2020-12-31 0000077543 tpc:BuildingGroupMember us-gaap:IntersegmentEliminationMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember us-gaap:IntersegmentEliminationMember 2020-01-01 2020-12-31 0000077543 us-gaap:IntersegmentEliminationMember 2020-01-01 2020-12-31 0000077543 us-gaap:CorporateNonSegmentMember 2020-01-01 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:BuildingGroupMember 2019-01-01 2019-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:SpecialtyContractorsMember 2019-01-01 2019-12-31 0000077543 us-gaap:OperatingSegmentsMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember us-gaap:IntersegmentEliminationMember 2019-01-01 2019-12-31 0000077543 tpc:BuildingGroupMember us-gaap:IntersegmentEliminationMember 2019-01-01 2019-12-31 0000077543 tpc:SpecialtyContractorsMember us-gaap:IntersegmentEliminationMember 2019-01-01 2019-12-31 0000077543 us-gaap:IntersegmentEliminationMember 2019-01-01 2019-12-31 0000077543 us-gaap:CorporateNonSegmentMember 2019-01-01 2019-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:CivilMember 2018-01-01 2018-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:BuildingGroupMember 2018-01-01 2018-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:SpecialtyContractorsMember 2018-01-01 2018-12-31 0000077543 us-gaap:OperatingSegmentsMember 2018-01-01 2018-12-31 0000077543 tpc:CivilMember us-gaap:IntersegmentEliminationMember 2018-01-01 2018-12-31 0000077543 tpc:BuildingGroupMember us-gaap:IntersegmentEliminationMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember us-gaap:IntersegmentEliminationMember 2018-01-01 2018-12-31 0000077543 us-gaap:IntersegmentEliminationMember 2018-01-01 2018-12-31 0000077543 us-gaap:CorporateNonSegmentMember 2018-01-01 2018-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:UnfavorableLegalRulingPertainingToMechanicalProjectInCaliforniaMember 2020-01-01 2020-12-31 0000077543 tpc:SpecialtyContractorsMember tpc:AdverseArbitrationRulingPertainingToElectricalProjectInNewYorkMember 2020-01-01 2020-12-31 0000077543 tpc:FavorableArbitrationDecisionMember tpc:SpecialtyContractorsMember 2020-01-01 2020-12-31 0000077543 tpc:AlaskanWayViaductMatterMember tpc:CivilMember 2019-01-01 2019-12-31 0000077543 tpc:CivilMember tpc:AdverseArbitrationRulingPertainingToSubcontractProjectInNewYorkMember 2018-01-01 2018-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:CivilMember 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:CivilMember 2019-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:BuildingGroupMember 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:BuildingGroupMember 2019-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:SpecialtyContractorsMember 2020-12-31 0000077543 us-gaap:OperatingSegmentsMember tpc:SpecialtyContractorsMember 2019-12-31 0000077543 us-gaap:CorporateNonSegmentMember 2020-12-31 0000077543 us-gaap:CorporateNonSegmentMember 2019-12-31 0000077543 country:US 2020-01-01 2020-12-31 0000077543 country:US 2019-01-01 2019-12-31 0000077543 country:US 2018-01-01 2018-12-31 0000077543 us-gaap:NonUsMember 2020-01-01 2020-12-31 0000077543 us-gaap:NonUsMember 2019-01-01 2019-12-31 0000077543 us-gaap:NonUsMember 2018-01-01 2018-12-31 0000077543 country:US 2020-12-31 0000077543 country:US 2019-12-31 0000077543 us-gaap:NonUsMember 2020-12-31 0000077543 us-gaap:NonUsMember 2019-12-31 0000077543 srt:BoardOfDirectorsChairmanMember 2020-01-01 2020-12-31 0000077543 srt:BoardOfDirectorsChairmanMember 2019-01-01 2019-12-31 0000077543 srt:BoardOfDirectorsChairmanMember 2018-01-01 2018-12-31 tpc:project 0000077543 tpc:ProjectInLosAngelesCaliforniaMember tpc:OAndGIndustriesIncMember 2020-12-31 0000077543 tpc:OAndGIndustriesIncMember 2020-01-01 2020-12-31 0000077543 tpc:AlliantInsuranceServicesInc.Member 2020-01-01 2020-12-31 0000077543 tpc:AlliantInsuranceServicesInc.Member 2019-01-01 2019-12-31 0000077543 tpc:AlliantInsuranceServicesInc.Member 2018-01-01 2018-12-31 0000077543 tpc:AlliantInsuranceServicesInc.Member 2020-12-31 0000077543 tpc:AlliantInsuranceServicesInc.Member 2019-12-31 0000077543 2020-01-01 2020-03-31 0000077543 2020-04-01 2020-06-30 0000077543 2020-07-01 2020-09-30 0000077543 2020-10-01 2020-12-31 0000077543 2019-01-01 2019-03-31 0000077543 2019-04-01 2019-06-30 0000077543 2019-07-01 2019-09-30 0000077543 2019-10-01 2019-12-31

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
FORM 10-K

☒ | Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020

or

☐ | Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from __________ -to- __________

Commission File Number: 1-6314
Tutor Perini Corporation

(Exact name of registrant as specified in its charter)
Massachusetts |  | 04-1717070
(State or Other Jurisdiction of Incorporation or Organization) |  | (I.R.S. Employer Identification No.)
15901 Olden Street, Sylmar, California |  | 91342
(Address of principal executive offices) |  | (Zip Code)
(818) 362-8391
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common Stock, $1.00 par value | TPC | The New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer o | Accelerated filer ☒ | Non-accelerated filer o
Smaller reporting company ☐ | Emerging growth company ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒
The aggregate market value of voting Common Stock held by non-affiliates of the registrant was $490,456,469 as of June 30, 2020, the last business day of the registrant’s most recently completed second fiscal quarter.
The number of shares of Common Stock, $1.00 par value per share, outstanding at February 19, 2021 was 50,913,900.
Documents Incorporated by Reference
The information required by Part III of this Annual Report on Form 10-K, to the extent not set forth herein, is incorporated herein by reference to the registrant’s definitive proxy statement relating to the Annual Meeting of Shareholders to be held in 2021, which definitive proxy statement shall be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates.

TUTOR PERINI CORPORATION
2020 ANNUAL REPORT ON FORM 10-K
TABLE OF CONTENTS

|  | PAGE
PART I. |  |
Item 1. | Business | 3
Item 1A. | Risk Factors | 10
Item 1B. | Unresolved Staff Comments | 16
Item 2. | Properties | 16
Item 3. | Legal Proceedings | 16
Item 4. | Mine Safety Disclosures | 16
PART II. |  |
Item 5. | Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities | 16
Item 6. | Selected Financial Data | 18
Item 7. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 19
Item 7A. | Quantitative and Qualitative Disclosures About Market Risk | 31
Item 8. | Financial Statements and Supplementary Data | 31
Item 9. | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure | 31
Item 9A. | Controls and Procedures | 31
Item 9B. | Other Information | 34
PART III. |  |
Item 10. | Directors, Executive Officers and Corporate Governance | 34
Item 11. | Executive Compensation | 34
Item 12. | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | 34
Item 13. | Certain Relationships and Related Transactions, and Director Independence | 34
Item 14. | Principal Account ant Fees and Services | 34
PART IV. |  |
Item 15. | Exhibits and Financial Statement Schedules | 34
Item 16. | Form 10-K Summary | 37
| Signatures | 38

2

Table of Contents
PART I.
Forward-Looking Statements
The statements contained in this Annual Report on Form 10-K that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934 (the “Exchange Act”), including without limitation, statements regarding our management’s expectations, hopes, beliefs, intentions or strategies regarding the future and statements regarding future guidance or estimates and non-historical performance. These forward-looking statements are based on our current expectations and beliefs concerning future developments and their potential effects on us. Our expectations, beliefs and projections are expressed in good faith, and we believe there is a reasonable basis for them. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by such forward-looking statements. These material risks and uncertainties are listed and discussed in Item 1A. Risk Factors, below. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.
ITEM 1. BUSINESS
General
Tutor Perini Corporation (together with its consolidated subsidiaries, “Tutor Perini,” the “Company,” “we,” “us,” and “our,” unless the context indicates otherwise) is a leading construction company, based on revenue as ranked by Engineering News-Record (“ENR”), offering diversified general contracting, construction management and design-build services to private customers and public agencies throughout the world. The Company was formed as a result of the 2008 merger between Tutor-Saliba Corporation and Perini Corporation (“Perini”) and our legacy dates back to 1894, when Perini's predecessor businesses began providing construction services. Our corporate headquarters are in Los Angeles (Sylmar), California, and we have various other principal offices throughout the United States and its territories (see Item 2. Properties for a listing of our major facilities). Our common stock is listed on the New York Stock Exchange under the symbol “TPC.” We are incorporated in the Commonwealth of Massachusetts.
We have established a strong reputation within our markets for executing large, complex projects on time and within budget while adhering to strict quality control measures. We offer general contracting, pre-construction planning and comprehensive project management services, including the planning and scheduling of the manpower, equipment, materials and subcontractors required for a project. We also offer self-performed construction services including site work; concrete forming and placement; steel erection; electrical; mechanical; plumbing; heating, ventilation and air conditioning (HVAC); and fire protection. During 2020, we performed work on approximately 1,200 construction projects.
In 2020, ENR ranked Tutor Perini as the 14 th largest domestic contractor. We are recognized as one of the leading civil contractors in the United States, as evidenced by our performance on several of the country’s largest mass-transit and transportation projects, such as Newark Liberty International Airport Terminal One (“Newark Airport Terminal One”), the East Side Access project in New York City, the California High-Speed Rail System, the Alaskan Way Viaduct Replacement (SR 99) project in Seattle, major portions of the Red Line and Purple Line segments of the Los Angeles Metro subway system, and the San Francisco Central Subway extension to Chinatown. We are also recognized as one of the leading building contractors in the United States, as evidenced by our performance on several of the country’s largest building development projects, including CityCenter and the Cosmopolitan Resort and Casino in Las Vegas, and Hudson Yards in New York City.
Our strengths and expertise in the construction of civil and building infrastructure projects have been augmented by our vertical integration capabilities, which we established more than 10 years ago through the acquisitions of various business entities specializing in electrical, mechanical, plumbing, HVAC and other services that enhanced our market capabilities and expanded our geographic presence. Our vertical integration is a competitive advantage that allows us to self-perform a greater amount of work than our competitors. It also increases our competitiveness in bidding and our efficiency in managing and executing large, complex projects, and provides us with significant cross-selling opportunities across a broad geographic footprint.
3

Table of Contents
Business Segment Overview
Our business is conducted through three segments: Civil, Building and Specialty Contractors.
Civil Segment
Our Civil segment specializes in public works construction and the replacement and reconstruction of infrastructure across several major geographic regions of the United States. Our civil contracting services include construction and rehabilitation of highways, bridges, tunnels, mass-transit systems, military defense facilities, and water management and wastewater treatment facilities.
The Civil segment is comprised of the heavy civil construction operations of our predecessors, Tutor-Saliba Corporation, its subsidiary Black Construction, and Perini, as well as our acquired companies, Frontier-Kemper, Lunda Construction and Becho. Our heavy civil units operate primarily on the West and East Coasts of the United States and are engaged in a variety of large mass-transit, tunneling, bridge and highway projects. Black Construction is the largest contractor in Guam and provides a variety of heavy civil, building, mechanical and electrical construction services throughout the Western Pacific region and in other strategic military locations. Frontier-Kemper is a heavy civil contractor engaged in the construction of tunnels for highways, railroads, subways and rapid transit systems; the construction of shafts and other facilities for water supply, wastewater transport and hydroelectric projects; and the development and equipping of mines with innovative hoisting, elevator and vertical conveyance systems. Lunda Construction is a heavy civil contractor specializing in the construction, rehabilitation and maintenance of bridges, railroads and other civil structures throughout the United States. Becho is engaged in drilling, foundation and excavation support for shoring, bridges, piers, roads and highway projects, primarily in the southwestern United States.
In its 2020 rankings, ENR ranked us as the nation’s second largest contractor in the transportation market and third largest domestic heavy contractor.
Our Civil segment’s customers primarily award contracts through one of two methods: the traditional public “competitive bid” method, in which price is the major determining factor, or through a best value proposal, where contracts are awarded based on a combination of technical qualifications, proposed project team, schedule, past performance on similar projects and price.
Traditionally, our Civil segment’s customers require each contractor to pre-qualify for construction business by meeting criteria that include technical capabilities and financial strength. Our financial strength, outstanding record of performance on challenging civil works projects, and vertical integration capabilities often enable us to pre-qualify for projects in situations where smaller, less diversified contractors are unable to meet the qualification requirements. We believe this is a competitive advantage that allows us to self-perform a greater amount of work and makes us an ideal lead contractor for the largest, most complex infrastructure projects and on prestigious design-build, design-build-operate-maintain and public-private partnership projects.
We believe the Civil segment provides us with significant opportunities for growth due to the condition of existing infrastructure coupled with large government funding sources dedicated to the replacement and reconstruction of aging U.S. infrastructure. In addition, infrastructure programs generally garner popular, bipartisan support from the public and elected officials due to their favorable long-term economic impacts, including significant job creation. Funding for major civil infrastructure projects is typically provided through a combination of one or more of the following: local, regional, state and federal loans and grants; other direct allocations sourced through tax revenue; bonds; user fees; and, for certain projects, private capital.
We have been active in civil construction since 1894 and believe we have a particular expertise in large, complex civil construction projects. We have completed, or are currently working on, some of the most significant civil construction projects in the United States. For example, we are currently working on Newark Airport Terminal One, the East Side Access project in New York City, the first phase of the California High-Speed Rail project, the Purple Line Segments 2 and 3 expansion projects in Los Angeles, the San Francisco Central Subway extension to Chinatown and the Minneapolis Southwest Light Rail Transit project. We have also completed major projects such as the Alaskan Way Viaduct Replacement (SR 99) in Seattle; the platform over the eastern rail yard at Hudson Yards in New York City; the rehabilitation of the Verrazano-Narrows Bridge in New York; and multiple runway reconstruction projects at the John F. Kennedy International Airport in New York, Los Angeles International Airport and Fort Lauderdale-Hollywood International Airport, among others.
4

Table of Contents
Building Segment
Our Building segment has significant experience providing services to a number of specialized building markets for private and public works customers, including hospitality and gaming, transportation, health care, commercial offices, government facilities, sports and entertainment, education, correctional facilities, biotech, pharmaceutical, industrial and high-tech. We believe the success of the Building segment results from our proven ability to manage and perform large, complex projects with aggressive fast-track schedules, elaborate designs, and advanced mechanical, electrical and life safety systems, while providing accurate budgeting and strict quality control. Although price is a key competitive factor, we believe our strong reputation, long-standing customer relationships and significant level of repeat and referral business have enabled us to achieve a leading position in the marketplace.
In its 2020 rankings, ENR ranked us as the 19 th largest domestic building contractor. We are a recognized leader in the hospitality and gaming market, specializing in the construction of high-end resorts and casinos. We work with hotel operators, Native American tribal councils, developers and architectural firms to provide diversified construction services to meet the challenges of new construction and renovation of hotel and resort properties. We believe that our reputation for completing projects on time is a significant competitive advantage in this market, as any delay in project completion could result in significant loss of revenue for the customer.
The Building segment is comprised of several operating units that provide general contracting, design-build, preconstruction and construction services in various regions of the United States. Tutor Perini Building Corp. focuses on large, complex building projects nationwide, including significant projects in the hospitality and gaming, commercial office, education, government facilities, and multi-unit residential markets. Rudolph and Sletten focuses on large, complex projects in California in the health care, commercial office, technology, industrial, education, and government facilities markets. Roy Anderson Corp. provides general contracting services, including major disaster response and reconstruction support, to public and private customers primarily throughout the southeastern United States. Perini Management Services provides diversified construction and design-build services internationally to U.S. government agencies, as well as to surety companies and multi-national corporations.
We have recently completed, or are currently working on, various large private and public building projects across a wide array of end markets. Specific projects include Newark Airport Terminal One; three large corporate office buildings in northern California for distinct confidential technology customers; a commercial office tower at 10 Hudson Yards and a multi-unit residential tower at 15 Hudson Yards in New York City; the El Camino Hospital Integrated Medical Office Building in El Camino, California; Kaiser Hospital buildings in San Leandro, Redwood City and Roseville, California; the Choctaw Casino and Resort in Durant, Oklahoma; the Pechanga Resort and Casino expansion in Temecula, California; the O Street Government Office Building in Sacramento, California; and courthouses in San Bernardino and San Diego, California and Broward County, Florida. As a result of our reputation and track record, we were previously awarded and completed contracts for several marquee hospitality and gaming projects in Las Vegas, including CityCenter, the Cosmopolitan Resort and Casino and the Wynn Encore Hotel. These projects span a wide array of building end markets and illustrate our Building segment’s résumé of successfully completed large-scale public and private projects.
Specialty Contractors Segment
Our Specialty Contractors segment specializes in electrical, mechanical, plumbing, HVAC, fire protection systems and pneumatically placed concrete for a full range of civil and building construction projects in the industrial, commercial, hospitality and gaming, and mass-transit end markets. This segment provides unique strengths and vertically integrated service capabilities that position us as a full-service contractor with greater control over project bids and costs, scheduled work, project delivery and risk management. The majority of work performed by the Specialty Contractors segment is contracted directly with state and local municipal agencies, real estate developers, school districts and other commercial and industrial customers. A significant portion of the segment's work has been, and is expected to continue to be, performed for our Civil and Building segments.
The Specialty Contractors segment is comprised of several operating units that provide unique services in various regions of the United States. Five Star Electric has established itself as an industry leader and is one of the largest electrical contractors in New York City. Five Star Electric provides construction services, including power, lighting, fire alarm, security, telecommunications, low voltage and wireless systems to both the public and private sectors. These services are provided across end markets that include multi-unit residential, hotels, commercial offices, industrial, mass transit, education, retail, sports and entertainment, health care and water treatment. Fisk Electric (“Fisk”) covers many of the major commercial, transportation and industrial electrical construction markets in California and the southern United States, with the ability to cover other attractive markets nationwide. Fisk’s expertise is in the design and development of electrical and technology systems for major projects spanning a broad variety of project types, including commercial office buildings, sports arenas, hospitals, research laboratories,
5

Table of Contents
hotels and casinos, convention centers, manufacturing plants, refineries, and water and wastewater treatment facilities. WDF, Nagelbush and Desert Mechanical each provide mechanical, plumbing, HVAC and fire protection services to a range of customers in a wide variety of markets, including transportation, commercial/industrial, schools and universities and residential. WDF is one of the largest mechanical contractors serving the New York City metropolitan region. Nagelbush operates primarily in Florida and Desert Mechanical operates primarily in the western United States. Superior Gunite specializes in pneumatically placed structural concrete utilized in infrastructure projects nationwide, such as bridges, dams, tunnels and retaining walls.
Our Specialty Contractors business units have completed, or are currently working on, various portions of the East Side Access project in New York City, various projects at the World Trade Center and at Hudson Yards in New York City, and upgrades and rehabilitations at various New York City public housing facilities. The Specialty Contractors segment has also supported, or is currently supporting, several large projects in our Civil and Building segments, including the Alaskan Way Viaduct Replacement (SR 99) project in Seattle; the San Francisco Central Subway extension to Chinatown; the Purple Line Segments 2 and 3 expansion projects in Los Angeles; Newark Airport Terminal One; the California High Speed Rail project in central California; McCarran International Airport Terminal 3 in Las Vegas; and several marquee hospitality and gaming projects in Las Vegas, including CityCenter, the Cosmopolitan Resort and Casino, and the Wynn Encore Hotel.
For information regarding the breakdown of our revenue by segment, end market, customer type and contract type, see Note 3 of the Notes to Consolidated Financial Statements. In addition, financial information about geographic areas is discussed in Note 14 of the Notes to Consolidated Financial Statements.
Backlog
Backlog in our industry is a measure of the total value of work that is remaining to be performed on projects that have been awarded. We include a construction project in our backlog when a contract is awarded or when we have otherwise received written definitive notice that the project has been awarded to us and there are no remaining major uncertainties that the project will proceed (e.g., adequate funding is in place). As a result, we believe our backlog is firm, and although cancellations or scope adjustments may occur, historically they have not been material. We estimate that approximately $4 billion, or 47%, of our backlog as of December 31, 2020 will be recognized as revenue in 2021. Our backlog by segment, end market and customer type is presented in the following tables:

| As of December 31,
(in thousands) | 2020 |  | 2019
Backlog by business segment: |  |  |  |  |  |  |
Civil | $ | 4,783,564 |  |  | 57 | % |  | $ | 6,037,195 |  |  | 54 | %
Building | 1,702,305 |  |  | 20 | % |  | 2,790,289 |  |  | 25 | %
Specialty Contractors | 1,859,848 |  |  | 23 | % |  | 2,393,626 |  |  | 21 | %
Total backlog | $ | 8,345,717 |  |  | 100 | % |  | $ | 11,221,110 |  |  | 100 | %

| As of December 31,
(in thousands) | 2020 |  | 2019
Civil segment backlog by end market: |  |  |  |  |  |  |
Mass transit (includes certain transportation and tunneling projects) | $ | 3,885,275 |  |  | 81 | % |  | $ | 4,628,664 |  |  | 77 | %
Military defense facilities | 318,389 |  |  | 7 | % |  | 369,647 |  |  | 6 | %
Bridges | 244,385 |  |  | 5 | % |  | 364,992 |  |  | 6 | %
Water | 130,274 |  |  | 3 | % |  | 218,517 |  |  | 4 | %
Other | 205,241 |  |  | 4 | % |  | 455,375 |  |  | 7 | %
Total Civil segment backlog | $ | 4,783,564 |  |  | 100 | % |  | $ | 6,037,195 |  |  | 100 | %

6

Table of Contents

| As of December 31,
(in thousands) | 2020 |  | 2019
Building segment backlog by end market: |  |  |  |  |  |  |
Municipal and government | $ | 556,726 |  |  | 33 | % |  | $ | 584,444 |  |  | 21 | %
Commercial and industrial facilities | 350,012 |  |  | 21 | % |  | 578,852 |  |  | 21 | %
Hospitality and gaming | 333,315 |  |  | 20 | % |  | 793,624 |  |  | 28 | %
Education facilities | 165,766 |  |  | 10 | % |  | 233,551 |  |  | 8 | %
Mass transit (includes transportation projects) | 144,019 |  |  | 8 | % |  | 345,462 |  |  | 12 | %
Health care facilities | 49,655 |  |  | 3 | % |  | 92,913 |  |  | 3 | %
Other | 102,812 |  |  | 5 | % |  | 161,443 |  |  | 7 | %
Total Building segment backlog | $ | 1,702,305 |  |  | 100 | % |  | $ | 2,790,289 |  |  | 100 | %

| As of December 31,
(in thousands) | 2020 |  | 2019
Specialty Contractors segment backlog by end market: |  |  |  |  |  |  |
Mass transit (includes certain transportation and tunneling projects) | $ | 1,058,479 |  |  | 57 | % |  | $ | 1,406,047 |  |  | 59 | %
Multi-unit residential | 219,139 |  |  | 12 | % |  | 307,009 |  |  | 13 | %
Water | 214,717 |  |  | 12 | % |  | 278,788 |  |  | 12 | %
Commercial and industrial facilities | 122,687 |  |  | 7 | % |  | 163,921 |  |  | 7 | %
Other | 244,826 |  |  | 12 | % |  | 237,861 |  |  | 9 | %
Total Specialty Contractors segment backlog | $ | 1,859,848 |  |  | 100 | % |  | $ | 2,393,626 |  |  | 100 | %

| As of December 31,
| 2020 |  | 2019
Backlog by customer type: |  |  |
State and local agencies | 72 | % |  | 69 | %
Private owners | 20 | % |  | 25 | %
Federal agencies | 8 | % |  | 6 | %
Total backlog | 100 | % |  | 100 | %

Fixed price contracts are expected to continue to represent a sizeable percentage of total backlog. The composition of backlog by type of contract for 2020 and 2019 is as follows:

| As of December 31,
| 2020 |  | 2019
Backlog by contract type: |  |  |
Fixed price | 76 | % |  | 76 | %
Guaranteed maximum price | 11 | % |  | 11 | %
Unit price | 4 | % |  | 5 | %
Cost plus fee and other | 9 | % |  | 8 | %
Total backlog | 100 | % |  | 100 | %

Competition
While the construction markets include numerous competitors, especially for small to mid-sized projects, much of the work that we target is for larger, more complex projects where there are typically fewer active market participants due to the greater capabilities and resources required to perform the work. In addition to domestic competitors, we have seen certain foreign competitors attempting to grow their presence in the United States over the past several years, particularly through the pursuit of large civil projects. In recent years, however, we have observed a diminished presence from some of these foreign competitors in the bidding for several of the larger U.S. project opportunities. We believe price, experience, reputation, responsiveness, customer relationships, project completion track record, schedule control, risk management and quality of work are key factors customers consider when awarding contracts.
In our Civil segment, we compete principally with large civil construction firms, including (alphabetically) Dragados USA; Fluor Corporation; Granite Construction; Kiewit Corporation; Skanska USA; Traylor Bros., Inc.; and The Walsh Group. In our Building segment, we compete with a variety of national and regional contractors, including (alphabetically) AECOM (through
7

Table of Contents
its acquisitions of Tishman Construction and Hunt Construction Group); Balfour Beatty Construction; Clark Construction Group; DPR Construction; Gilbane, Inc.; Hensel Phelps Construction Co.; McCarthy Building Companies, Inc.; Skanska USA; Suffolk Construction; and Turner Construction Company. In our Specialty Contractors segment, we compete principally with various regional and local electrical, mechanical and plumbing subcontractors.
Construction Costs
If prices for materials, labor or equipment increase excessively, provisions in certain types of contracts often shift all or a major portion of any adverse impact to the customer. In our fixed price contracts, we attempt to insulate ourselves from the unfavorable effects of inflation, when possible, by incorporating escalating wage and price assumptions into our construction cost estimates, by obtaining firm fixed price quotes from major subcontractors and material suppliers, and by securing purchase commitments for materials early in the project schedule. Construction and other materials used in our construction activities are generally available locally from multiple sources and have been in adequate supply during recent years. Labor resources for our domestic projects are largely obtained through various labor unions. We have not experienced significant labor shortages in recent years, nor do we expect to in the near future, although a significant, rapid growth in our backlog may lead to situations in which labor resources become constrained. We employ expatriate and local labor in selected overseas areas.
Seasonality
We experience seasonal trends in our business. Our revenue and operating income are typically higher in the second half of the year. Our first fiscal quarter of the year is typically our lowest revenue quarter, as the harsher winter weather conditions that often occur during this period can negatively impact our ability to execute work and our productivity in parts of North America. Our revenue typically increases during the high construction seasons of the summer and fall months in the United States. Within the United States, as well as in other parts of the world, our business generally benefits from milder weather conditions during our third fiscal quarter, which allows for more productivity from our on-site construction operations. For these reasons, coupled with the number and significance of customer contracts commenced and completed during a particular period, it is not unusual for us to experience seasonal changes or fluctuations in our quarterly operating results.
Government Contracts
Most of our federal, state and local government customers can terminate, renegotiate, or modify any of their contracts with us at their election, and many of our federal government contracts are subject to renewal or extension periodically. Revenue derived from federal, state and local government customers was approximately 60% of our total revenue for each of the years ended December 31, 2020, 2019 and 2018.
Environmental, Health and Safety Regulations
Environmental, health and safety regulations and requirements materially affect our business. We are firmly committed to providing a safe and healthy work environment for our employees and to working in a manner that ensures the safety of our subcontractors, customers and the general public, as well as the protection of facilities, equipment and the environment. Compliance with Occupational Safety and Health Administration (“OSHA”) and other health and safety regulations, in particular, is essential to procure business and to attract and retain our workforce. Accordingly, we make considerable investments in our environmental, health and safety programs, and we factor costs associated with compliance into our project bids and proposals.
We provide construction and construction management services at various project sites, and sometimes perform work in and around sensitive environmental areas, such as rivers, lakes and wetlands. We also handle small quantities of hazardous materials on occasion. Significant fines, penalties and other sanctions may be imposed for non-compliance with environmental and health and safety laws and regulations, and some laws provide for joint and several strict liabilities for remediation of releases of hazardous substances.
Contaminants have been detected at some of the sites that we own and where we have worked as a contractor in the past, and we have incurred costs for the investigation and remediation of hazardous substances. However, we do not own the job sites upon which we perform our work. We have pollution liability insurance coverage for such matters, and if applicable, we seek indemnification from customers to cover the risks associated with environmental remediation. Accordingly, we believe that our environmental liabilities are not material. In addition, we continually evaluate our compliance with all applicable environmental laws and regulations, and believe that we are in substantial compliance with those laws and regulations.
8

Table of Contents
Insurance and Bonding
All of our properties and equipment, as well as those of our joint ventures, are covered by insurance in amounts that we believe are consistent with our risk of loss and industry practice. Our wholly owned subsidiary, PCR Insurance Company, issues policies for default insurance for our subcontractors, automobile liability, general liability and workers’ compensation insurance, allowing us to centralize our claims and risk management functions to reduce our insurance-related costs.
As a normal part of the construction business, we are often required to provide various types of surety bonds as an additional level of security for our performance. We also require many of our higher-risk subcontractors to provide surety bonds as security for payment of subcontractors and suppliers and to guarantee their performance. As an alternative to traditional surety bonds, we also have purchased subcontractor default insurance for certain construction projects to insure against the risk of subcontractor default.
Human Capital Resources
The foundation of our continuing success as a leading construction services business is our ability to attract and retain the industry’s best talent by providing a culture of opportunity, development, accountability and empowerment. This understanding guides our approach to managing our human capital resources.
Employees. Our principal asset is our employees, many of whom have technical and professional backgrounds and undergraduate and/or advanced degrees. As of December 31, 2020, we had approximately 8,700 employees (including union employees), of which approximately 2,100 were salaried and 6,600 were hourly employees. The number of employees at any given time depends on the volume and types of active projects in progress, as well as our position within the lifecycle of those projects. We believe that we have strong relationships with our employees and that the quality and level of service that our employees deliver to our customers are among the highest in our industry.
Union Workforce. We are signatory to numerous local and regional collective bargaining agreements, both directly and through trade associations, as a union contractor. These agreements cover all necessary union crafts and are subject to various renewal dates. As of December 31, 2020, our workforce included a total of approximately 4,500 union employees. Estimated amounts for wage escalation related to the expiration of union contracts are included in our bids on various projects; accordingly, the expiration of any union contract in the next year is not expected to have any material impact on us. During the past several years, we have not experienced any significant work stoppages caused by our union employees.
Talent Recruitment, Training and Retention. Our business relies upon an adequate supply of management, supervisory and field personnel. Recruiting, training and retaining key personnel has been and will remain primary goals of our human capital initiative. Through the use of management information systems, on-the-job training and educational seminars, employees are trained to understand the importance of project execution. We place a strong emphasis on training employees in accurate and comprehensive project estimating, project management and project cost control. As is common in our industry, we experience some recurring employee turnover each year, which we believe is comparable to the industry average. Historically, we have successfully attracted and retained sufficient numbers of personnel, including union personnel, to support our operational needs. We strive to ensure a fully competent project management team that includes long-term successors to our current project leaders by investing significant resources to build strong and highly competent project managers. We regularly hire construction management and engineering staff, including interns and recent graduates, and provide them with engaging projects and development programs. On the occasion when we have a need for senior project executives, the broad professional network of our leadership team often provides strong candidates to fill those needs. We also utilize internal and external recruiting specialists to help fill our open job positions. To support retention and motivation of our top talent, we provide very competitive compensation, which may include performance incentives.
Workplace Safety. We place a strong emphasis on the safety of our employees, our customers and the public. Accordingly, we conduct extensive safety training programs that have allowed us to maintain a high safety level at our worksites. All newly hired employees that will be working at project job sites undergo an initial safety orientation, and for certain types of projects or processes we conduct specific hazard training programs. Our project supervisors regularly conduct on-site safety meetings and our safety managers make random site safety inspections and perform daily assessments. In addition, operational employees are required to complete an OSHA 30-hour training program and project-specific courses on various safety topics. Moreover, we promote a culture of safety by encouraging employees to recognize, immediately correct and report all unsafe conditions.
Available Information
Our investor website address is http://investors.tutorperini.com. In the “Financial Reports” portion of our investor website, under the subsection “SEC Filings,” you may obtain free electronic copies of our annual reports on Form 10-K, quarterly
9

Table of Contents
reports on Form 10-Q, current reports on Form 8-K, and any amendments to these reports. These reports, and any amendments to them, are made available on our website as soon as reasonably practicable after we electronically file them with the Securities and Exchange Commission (“SEC”).
ITEM 1A. RISK FACTORS
We are subject to a number of known and unknown risks and uncertainties that could have a material adverse effect on our operations. Set forth below, and elsewhere in this report, are descriptions of the material risks and uncertainties that could cause our actual results to differ materially from the results contemplated by the forward-looking statements contained in this report and could have a material adverse effect on our financial condition, results of operations and cash flows.
Risks Related to Our Business and Operations
The novel coronavirus (“COVID-19”) pandemic has adversely impacted, and could continue to adversely impact, our business, financial condition and results of operations.
The World Health Organization declared the COVID-19 outbreak a pandemic and the U.S. Government declared a national emergency in March 2020. The COVID-19 pandemic has created volatility, uncertainty and economic disruption for the Company, our customers, subcontractors and suppliers, and the markets in which we do business. The scope and impact of the COVID-19 pandemic continues to evolve, and new strains of the COVID-19 virus have recently been discovered, including some that may have a higher degree of transmission. Extraordinary and wide-ranging actions have been taken by international, federal, state and local public health and governmental authorities to contain and combat the spread of COVID-19, including stay-at-home or shelter-in-place orders, social distancing measures and travel restrictions for individuals, orders for many businesses to cease or curtail normal operations unless their work is deemed essential or critical and, recently, the approvals of various vaccines and subsequent roll-outs of large-scale vaccination programs worldwide. Some of these vaccines, while highly effective against the original virus strain, may be less effective against some of the newer and more contagious variants.
While we have not experienced project cancellations as a result of the COVID-19 pandemic, we have experienced disruptions to our business operations as the pandemic has spread through the geographies where we do business. For example, beginning in mid-March of 2020, work on some non-essential construction projects was suspended or curtailed by certain customers, primarily in our Building and Specialty Contractors segments, though the vast majority of our projects in the Civil segment have been designated as essential business, allowing us to continue our work on those projects. In addition, we have modified certain business and workforce practices and implemented new protocols to promote social distancing and enhance health and safety measures on our projects and in our offices to conform to regulatory requirements and best practices encouraged by governmental and regulatory authorities, all of which has negatively affected our operations and resulted in increases in operating expenses. We have also experienced absenteeism due to illness, quarantine or fear by our employees or those of our subcontractors on certain projects, which has resulted in some disruption of our work. The COVID-19 pandemic's impacts to date have been primarily productivity inefficiencies due to project suspensions or absenteeism on certain projects, as well as additional costs associated with the new health and safety measures implemented in response to the pandemic. Any ongoing project suspensions, personnel absenteeism, or reduced work schedules or shifts required to comply with quarantines or other social distancing measures could continue to adversely affect our operations. In addition, as a result of COVID-19 containment efforts, we have experienced delays in certain bidding activities and also in legal proceedings and settlement discussions where we have claims against project owners for additional costs exceeding the contract price or for amounts not included in the original contract price. Consequently, our ability to resolve and recover on these types of claims has been and may continue to be delayed, which may adversely affect our liquidity and financial results. For further discussion regarding the impact of COVID-19 to our business, see Management's Discussion and Analysis of Financial Condition and Results of Operations contained in Item 7.
It remains too early to assess the full impact that the COVID-19 pandemic, and the actions taken in response to it, will have on our employees, our operating segments and practices, our customers, subcontractors and suppliers, and the regions that we serve, or on our financial condition and results of operations as a whole. The full impact depends on many factors that remain uncertain and subject to ongoing volatility, or that are not yet identifiable, and in many cases are out of our control. These factors could include, among other things: (1) the duration of the COVID-19 pandemic and the types and magnitude of adverse impacts on the U.S. and global economies; (2) the health and welfare of our employees, and those of our customers, subcontractors and suppliers; (3) evolving business and government actions in response to the pandemic, including stay-at-home measures, changes to what are considered “essential” businesses, social distancing measures, travel bans and additional health and safety requirements that we may be required to observe in order to continue working on our projects; (4) the varying impact that the pandemic may have on industries we serve and on government spending for infrastructure projects, including reduced government spending on infrastructure as a result of lower revenues from taxes, tolls and fares; (5) the response of our customers or prospective customers to the pandemic, including further delays, stoppages or terminations of existing projects or
10

Table of Contents
potential new awards; (6) delays in the settlement of receivables if customers are unable to pay, fail to make timely payments, request financial concessions or if we continue to experience delays in resolving claims and disputes (e.g., further delays in court proceedings or settlement discussions); (7) limitations and higher costs associated with obtaining financing; (8) potential challenges with suppliers that could limit the availability or cost of materials; (9) potential interruptions to our information systems and technology or breaches in our data security due to increasing use of remote communications and access; and (10) the extent to which and timing of when individuals become vaccinated against COVID-19 (which would contribute to the point at which “herd immunity” may be achieved), as well as the extent to which such vaccines are effective against the various current and future virus strains. Such factors may continue to result in fewer or delayed project bidding opportunities or additional or further delays on existing projects.
Any of these events or impacts we have experienced or identified could cause or contribute to the risks and uncertainties facing the Company and our customers and could materially and adversely affect our business or portions thereof, and our financial condition and results of operations. The COVID-19 pandemic and the volatile economic conditions stemming from the pandemic, as well as reactions to future pandemics or resurgences of COVID-19, could also aggravate or heighten the risks posed by other risk factors that we have identified in this Annual Report on our Form 10-K for the year ended December 31, 2020, which in turn could materially and adversely affect our business, financial condition and results of operations. There may be other adverse consequences to our business, financial condition and results of operations from the spread of COVID-19 that are not presently known or that have not yet become apparent. As a result, we cannot assure you that if COVID-19 continues to spread, it would not have a further adverse impact on our business, financial condition and results of operations.
We are involved in a significant number of legal proceedings which, if determined unfavorable to us, could adversely affect our financial results and/or cash flows, harm our reputation and/or preclude us from bidding on future projects. We also may invest significant working capital on projects while legal proceedings are being settled.
We are involved in various lawsuits, including the legal proceedings described under Note 8 of the Notes to Consolidated Financial Statements. Litigation is inherently uncertain, and it is not possible to accurately predict what the final outcome will be of any legal proceeding. We must make certain assumptions and rely on estimates, which are inherently subject to risks and uncertainties, regarding potential outcomes of legal proceedings in order to determine an appropriate contingent liability and charge to income. Any result that is materially different from our expectations and estimates could have a material adverse effect on our financial condition, results of operations and cash flows. This may include requiring us to record an expense or reduce revenue that we previously recorded based on our expectations or estimates, requiring us to pay damages or reducing cash collections that we had expected to receive. For example, on December 13, 2019, we received an adverse jury verdict in the case related to the construction of the Alaskan Way Viaduct Replacement Project (“SR 99”) by a joint venture for which the Company holds a 45% share as a minority partner. As a result of the unexpected adverse jury verdict, we recorded a pre-tax charge of $166.8 million in 2019. Refer to the Alaskan Way Viaduct (SR 99) Matter in Note 8 of the Notes to Consolidated Financial Statements for further discussion. In addition, any adverse judgments could harm our reputation and preclude us from bidding on future projects.
We may bring claims against project owners for additional cost exceeding the contract price or for amounts not included in the original contract price. When these types of events occur and unresolved claims are pending, we may invest significant working capital in projects to cover cost overruns pending the resolution of the relevant claims. A failure to promptly recover on these types of claims could have a material adverse effect on our liquidity and financial results.
If we are unable to accurately estimate contract risks, revenue or costs, the timing of new awards, or the pace of project execution, we may incur a loss or achieve lower than anticipated profit.
Accounting for contract-related revenue and costs requires management to make significant estimates and assumptions that may change substantially throughout the project lifecycle, which has previously resulted, and in the future could result, in a material impact to our consolidated financial statements. In addition, cost overruns, including unanticipated cost increases on fixed price and guaranteed maximum price contracts, have previously resulted, and in the future may result, in lower profits or losses. Changes in laws, policies or regulations, including tariffs and taxes, have previously impacted, and in the future could impact, the prices for materials or equipment. Further, our results of operations have historically fluctuated, and may continue to fluctuate, quarterly and annually depending on when new awards occur and the commencement and progress of work on projects already awarded.
Our contracts require us to perform extra, or change order, work which can result in disputes or claims and adversely affect our working capital, profits and cash flows.
Our contracts generally require us to perform extra, or change order, work as directed by the customer even if the customer has not agreed in advance on the scope and/or price of the work to be performed. This process may result in disputes or claims over
11

Table of Contents
whether the work performed is beyond the scope of work directed by the customer and/or exceeds the price the customer is willing to pay for the work performed. To the extent we do not recover our costs for this work or there are delays in the recovery of these costs, our working capital, profits and cash flows could be adversely impacted.
Our actual results could differ from the assumptions and estimates used to prepare our financial statements.
In preparing our financial statements, we are required under generally accepted accounting principles in the United States (“GAAP”) to make estimates and assumptions as of the date of the financial statements. These estimates and assumptions affect the reported values of assets, liabilities, revenue and expenses, and the disclosure of contingent assets and liabilities. Areas requiring significant estimates by our management include, but are not limited to:
• recognition of contract revenue, costs, profits or losses in applying the principles of revenue accounting;
• recognition of revenue related to project incentives or awards we expect to receive;
• recognition of recoveries under contract change orders or claims;
• estimated amounts for expected project losses, warranty costs, contract closeout or other costs;
• collectability of billed and unbilled accounts receivable;
• asset valuations;
• income tax provisions and related valuation allowances;
• determination of expense and potential liabilities under pension and other post-retirement benefit programs; and
• accruals for other estimated liabilities, including litigation and insurance reserves.
Our actual business and financial results could differ from our estimates of such results, which could have a material adverse impact on our financial condition and reported results of operations.
A significant slowdown or decline in economic conditions could adversely affect our operations.
Any significant decline in economic conditions in any of the markets we serve or uncertainty regarding the economic outlook (apart from the COVID-19 related impacts discussed above) could result in a decline in demand for infrastructure projects and commercial building developments. In addition, any instability in the financial and credit markets could negatively impact our customers’ ability to pay us on a timely basis, or at all, for work on projects already under construction, could cause our customers to delay or cancel construction projects in our backlog or could create difficulties for customers to obtain adequate financing to fund new construction projects. Such consequences could have an adverse impact on our future operating results. Lastly, we are more susceptible to adverse economic conditions in New York and California, as a significant portion of our operations are concentrated in those states.
The level of federal, state and local government spending for infrastructure and other public projects could adversely affect the number of projects available to us in the future.
The civil construction and public-works building markets are dependent on the amount of work funded by various government agencies, which depends on many factors, including the condition of the existing infrastructure and buildings; the need for new or expanded infrastructure and buildings; and federal, state and local government spending levels. As a result, our future operating results could be negatively impacted by any decrease in demand for public projects or decrease or delay in government funding, which could result from a variety of factors, including extended government shutdowns, delays in the sale of voter-approved bonds, budget shortfalls, credit rating downgrades or long-term impairment in the ability of state and local governments to raise capital in the municipal bond market. In 2020, some of our customers experienced budget shortfalls due to COVID-19 impacts, which resulted in delayed revenue, a lower volume of new awards and reduced backlog for the Company.
We require substantial personnel, including construction and project managers and specialty subcontractor resources, to execute and perform on our contracts in backlog. The successful execution of our business strategies is also dependent upon our ability to attract and retain our key officers, as well as adequately plan for their succession.
Our ability to execute and perform on our contracts in backlog depends in large part upon our ability to hire and retain highly skilled personnel, including project and construction management and trade labor resources, such as carpenters, masons and other skilled workers. In the event we are unable to attract, hire and retain the requisite personnel and subcontractors necessary to execute and perform on our contracts in backlog, we may experience delays in completing projects in accordance with project schedules or an increase in expected costs, both of which could have a material adverse effect on our financial results, our reputation and our relationships. In addition, if we lack the personnel and specialty subcontractors necessary to perform on our current contract backlog, we may find it necessary to curtail our pursuit of new projects. A significant, rapid growth in our backlog may lead to situations in which labor resources become constrained.
12

Table of Contents
The execution of our business strategies also substantially depends on our ability to retain several key members of our management. Losing any of these individuals could adversely affect our business. The majority of these key individuals are not bound by employment agreements. Volatility or lack of positive performance in our stock price may adversely affect our ability to retain key individuals to whom we have provided share-based compensation. Additionally, because a substantial portion of our key officers' compensation is placed “at risk” and linked to the performance of our business, when our operating results are negatively impacted, we are at greater risk of employee turnover. If we lose any key officer due to voluntary or involuntary termination, including as a result of death or disability, and we do not have qualified successors in place, our operating results could be harmed.
The construction services industry is highly schedule driven, and our failure to meet the schedule requirements of our contracts could adversely affect our reputation and/or expose us to financial liability.
Many of our contracts are subject to specific completion schedule requirements. Failure to meet contractual schedule requirements has subjected us, and in the future could subject us, to liquidated damages, liability for our customer’s actual cost arising out of our delay and damage to our reputation.
We may not fully realize the revenue value reported in our backlog due to cancellations or reductions in scope.
As of December 31, 2020, our backlog of uncompleted construction work was approximately $8.3 billion. The revenue projected in our backlog may not be fully realized and, in some cases, if realized, may not result in profits or may be less profitable than expected. The cancellation or reduction in scope of significant projects included in our backlog could have a material adverse effect on our financial condition, results of operations and cash flows.
Systems and information technology interruption and breaches in data security could adversely impact our ability to operate and negatively impact our operating results.
We rely on computer, information and communication technology and other related systems, some of which are hosted by third party providers, for various business processes and activities, including project management, accounting, financial reporting and business development. These systems have been and may, in the future, be subject to interruptions or damage by a variety of factors including, but not limited to, cyber-attacks, natural disasters, power loss, telecommunications failures, acts of war, computer viruses, obsolescence and physical damage. Such interruptions can result in a loss of critical data, a delay in operations, damage to our reputation or an unintentional disclosure of customer confidential or personally identifiable information, any of which could have a material adverse impact on us and our consolidated financial statements.
In addition, various privacy and security laws require us to protect sensitive and confidential information from disclosure. We dedicate considerable attention and resources to the safeguarding of our information technology systems. Nevertheless, our systems are at risk for cyber-attacks. Consequently, we may need to engage significant resources in the future to remediate the impact of, or further mitigate the risk of, such an attack. Any successful cyber-attack can result in the criminal, or otherwise illegitimate use of, confidential data, including our data or third-party data for which we have the responsibility for safekeeping. Additionally, such an attack could adversely affect our operations, reputation and financial results.
Competition for new project awards is intense, and our failure to compete effectively could reduce our market share and profits.
New project awards are determined through either a competitive bid basis or on a negotiated basis. Projects may be awarded based solely upon price, but often take into account other factors, such as technical qualifications, proposed project team, schedule and past performance on similar projects. Within our industry, we compete with many international, regional and local construction firms. Some of these competitors have achieved greater market penetration than we have in the markets in which we compete, and some have greater resources than we do. If we are unable to compete successfully in such markets, our relative market share and profits could be reduced.
Our participation in construction joint ventures exposes us to liability and/or harm to our reputation for failures by our partners.
As part of our business, we enter into joint venture arrangements typically to jointly bid on and execute particular projects, thereby reducing our risk profile while enhancing the execution capability and financial reward of project teams. Success on these joint projects depends in large part on whether our joint venture partners satisfy their contractual obligations. Generally, we and our joint venture partners are jointly and severally liable for all liabilities and obligations of our joint ventures. If a joint venture partner fails to perform or is financially unable to bear its portion of required capital contributions or other obligations, including liabilities stemming from lawsuits, we could be required to make additional investments, provide additional services
13

Table of Contents
or pay more than our proportionate share of a liability to make up for our partner’s shortfall. Further, if we are unable to adequately address our partner’s performance issues, the customer may terminate the project, which could result in legal liability to us, harm our reputation, reduce our profit on a project or, in some cases, result in a loss.
Our international operations expose us to economic, political, regulatory and other risks, as well as uncertainty related to U.S. Government funding, which could adversely affect our revenue and earnings.
For the year ended December 31, 2020, we derived $365.7 million of revenue from our work on projects located outside of the United States. Our international operations expose us to risks inherent in doing business in certain hostile regions outside the United States, including political risks; risks of loss due to acts of war; unstable economic, financial and market conditions; potential incompatibility with foreign subcontractors and vendors; foreign currency controls and fluctuations; trade restrictions; logistical challenges; variations in taxes; and changes in labor conditions, labor strikes and difficulties in staffing and managing international operations. Failure to successfully manage risks associated with our international operations could result in higher operating costs than anticipated or could delay or limit our ability to generate revenue and income from construction operations in key international markets.
The U.S. federal government has approved various spending bills for the construction of defense- and diplomacy-related projects and has allocated significant funds to the defense of U.S. interests around the world from the threat of terrorism. The federal government has also approved funds for development in conjunction with the relocation of military personnel into Guam. However, federal government funding levels for construction projects in the Middle East have decreased significantly over the past several years as the U.S. government has reduced the number of military troops and support personnel in the region. As a result, we have seen a decrease in the number and size of federal government projects available to us in this region. Any decrease in U.S. federal government funding for projects in Guam or in other U.S. Territories or countries in which we are pursuing work may result in project delays or cancellations, which could reduce our revenue and earnings.
Weather can significantly affect our revenue and profitability.
Inclement weather conditions, such as significant storms and unusual temperatures, can impact our ability to perform work. Adverse weather conditions can cause delays and increases in project costs, resulting in variability in our revenue and profitability.
We are subject to risks related to government contracts and related procurement regulations.
Our contracts with U.S. federal, as well as state, local and foreign, government entities are subject to various procurement regulations and other requirements relating to their formation, administration and performance. We are subject to audits and investigations relating to our government contracts, and any violations could result in various civil and criminal penalties and administrative sanctions, including termination of contract, refunding or suspending of payments, forfeiture of profits, payment of fines and suspension or debarment from future government business. In addition, most of these contracts provide for termination or renegotiation by the government at any time, without cause, which could have an adverse effect on our business and operations.
We could be adversely affected by violations of the U.S. Foreign Corrupt Practices Act and similar worldwide anti-bribery laws.
The U.S. Foreign Corrupt Practices Act of 1977, the U.K. Bribery Act of 2010, and similar anti-bribery laws in other jurisdictions generally prohibit companies and their intermediaries from making improper payments for the purpose of obtaining or retaining business. While our policies mandate compliance with these anti-bribery laws, there is no assurance that our policies and procedures will protect us from circumstances or actions that could result in possible criminal penalties or other sanctions, including contract cancellations or debarment and loss of reputation, any of which could have a material adverse impact on our business, financial condition, and results of operations.
In connection with mergers and acquisitions, we have recorded goodwill and other intangible assets that could become impaired and adversely affect our operating results. Assessing whether impairment has occurred requires us to make significant judgments and assumptions about the future, which are inherently subject to risks and uncertainties, and if actual events turn out to be materially less favorable than the judgments we make and the assumptions we use, we may be required to record impairment charges in the future.
We had $255.5 million of goodwill and indefinite-lived intangible assets recorded on our Consolidated Balance Sheet as of December 31, 2020. We assess these assets for impairment annually, or more often if required. Our assessments involve a number of estimates and assumptions that are inherently subjective, require significant judgment and involve highly uncertain
14

Table of Contents
matters that are subject to change. The use of different assumptions or estimates could materially affect the determination as to whether or not an impairment has occurred. In addition, if future events are less favorable than what we assumed or estimated in our impairment analysis, we may be required to record an impairment charge, which could have a material adverse impact on our consolidated financial statements.
Adverse health events, such as an epidemic or a pandemic, could adversely impact our business.
From time to time, various diseases have spread across the globe, such as the recent COVID-19. If a disease spreads sufficiently to cause an epidemic or a pandemic, our business or the business of our suppliers, subcontractors or customers could be adversely impacted.
Risks Related to Our Capital Structure
We have a substantial amount of indebtedness which could adversely affect our financial position and prevent us from fulfilling our obligations under our debt agreements.
We currently have, and expect to continue to have, a substantial amount of indebtedness. As of December 31, 2020, our total debt was $1.0 billion, with $100.2 million classified as current debt. If we are unable to meet the terms of the financial covenants or fail to comply with any of the other restrictions contained in the agreements governing our indebtedness, an event of default could occur, causing the debt related to such agreements to become immediately due. If such acceleration occurs, we may not be able to repay such indebtedness as required. Since indebtedness under our credit agreement entered into on August 18, 2020 (the “2020 Credit Agreement”) with BMO Harris Bank N.A., as Administrative Agent, Swing Line Lender and L/C Issuer and other lenders is secured by substantially all of our assets, acceleration of this debt could result in foreclosure of those assets and a negative impact on our operations. In addition, a failure to meet the terms of our 2020 Credit Agreement could result in a reduction of future borrowing capacity under the 2020 Credit Agreement, causing a loss of liquidity. A loss of liquidity could adversely impact our ability to execute projects in our backlog, obtain new projects, engage subcontractors, and attract and retain key employees.
Downgrades in our credit ratings could have a material adverse effect on our business and financial condition.
The Company’s debt rating was downgraded by a major credit rating agency on March 23, 2020. The credit ratings assigned to us and our debt are subject to ongoing evaluation by credit rating agencies and could change based upon, among other things, our results of operations and financial condition. Actual or anticipated changes or downgrades in our credit ratings, including any announcement that our ratings are under review for a downgrade, could have a material adverse effect on our costs and availability of capital, which could in turn have a material adverse effect on our financial condition, results of operations, cash flows and our ability to satisfy our debt service obligations. Negative changes in our credit ratings could also result in more stringent covenants and higher interest rates with regard to any new or refinanced debt.
The phase-out of the London Interbank Offered Rate (“LIBOR”), or the replacement of LIBOR with a different reference rate, may adversely affect interest rates paid on some of our loans and, consequently, our earnings and cash flows.
Borrowings under our 2020 Credit Agreement and the variable portion of our equipment financing and mortgages use interest rates in relation to LIBOR. In 2017, the United Kingdom’s Financial Conduct Authority, which regulates LIBOR, announced that it intends to phase out LIBOR by the end of 2021. It is unclear if LIBOR will cease to exist at that time or if new methods of calculating LIBOR will be established such that it continues to exist after 2021. The expected phase out of LIBOR could cause market volatility or disruption and may adversely affect our access to the capital markets and cost of funding.
Risk Related to Our Stock Ownership
Our chairman and chief executive officer could exert influence over the Company due to his position and significant ownership interest.
As of December 31, 2020, our chairman and chief executive officer, Ronald N. Tutor, and three trusts controlled by Mr. Tutor (the “Tutor Group”) owned approximately 16% of the outstanding shares of our common stock. Additionally, one of our current directors was appointed by Mr. Tutor pursuant to his right to nominate one member to our Board of Directors, so long as the Tutor Group owns at least 11.25% of the outstanding shares of our common stock. Accordingly, Mr. Tutor could exert influence over the outcome of a range of corporate matters, including the election of directors and the approval or rejection of other extraordinary transactions, such as a takeover attempt or sale of the Company or its assets.
15

Table of Contents
ITEM 1B. UNRESOLVED STAFF COMMENTS
None.
ITEM 2. PROPERTIES
We have office facilities and equipment yards in the following locations, which we believe are suitable and adequate for our current needs:

Offices |  | Owned or Leased by Tutor Perini |  | Business Segment(s)
Los Angeles (Sylmar), CA |  | Owned and Leased |  | Corporate, Civil & Specialty Contractors
Barrigada, Guam |  | Owned |  | Civil
Black River Falls, WI |  | Owned |  | Civil
Evansville, IN |  | Owned |  | Civil
Fort Lauderdale, FL |  | Leased |  | Building & Specialty Contractors
Framingham, MA |  | Owned |  | Building
Gulfport, MS |  | Owned |  | Building
Henderson, NV |  | Owned |  | Building & Specialty Contractors
Houston, TX |  | Owned |  | Specialty Contractors
Jessup, MD |  | Owned |  | Civil
Lakeview Terrace, CA |  | Leased |  | Specialty Contractors
Mount Vernon, NY |  | Leased |  | Specialty Contractors
New Rochelle, NY |  | Owned |  | Civil
Ozone Park, NY |  | Owned |  | Specialty Contractors
Philadelphia, PA |  | Leased |  | Building
San Carlos, CA |  | Leased |  | Building
Equipment Yards |  | Owned or Leased by Tutor Perini |  | Business Segment(s)
Black River Falls, WI |  | Owned |  | Civil
Evansville, IN |  | Owned |  | Civil
Fontana, CA |  | Leased |  | Civil
Hilbert, WI |  | Owned |  | Civil
Lakeview Terrace, CA |  | Leased |  | Specialty Contractors
Rosemount, MN |  | Owned |  | Civil
Stockton, CA |  | Owned |  | Building
Waukesha, WI |  | Owned |  | Civil

ITEM 3. LEGAL PROCEEDINGS
Legal proceedings are discussed in Note 8 of the Notes to Consolidated Financial Statements and are incorporated herein by reference.
ITEM 4. MINE SAFETY DISCLOSURES
We do not own or operate any mines; however, we may be considered a mine operator under the Federal Mine Safety and Health Act of 1977 because we provide construction services to customers in the mining industry. Accordingly, we provide information regarding mine safety violations and other mining regulation matters in Exhibit 95 to this Form 10-K.
PART II.
ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Market Information
Our common stock is traded on the New York Stock Exchange under the symbol “TPC.”
16

Table of Contents
Holders
At February 19, 2021, there were 354 holders of record of our common stock, including holders of record on behalf of an indeterminate number of beneficial owners.
Dividends and Issuer Purchases of Equity Securities
We did not repurchase any of our common stock during the fourth quarter of 2020. We have not historically paid dividends on our common stock and have no immediate plans to do so.
Issuance of Unregistered Securities
None.
Performance Graph
The following graph compares the cumulative five-year total return to shareholders on our common stock relative to the cumulative total returns of the NYSE Composite Index and the Dow Jones U.S. Heavy Construction Index. We selected the Dow Jones U.S. Heavy Construction Index because we believe the index reflects the market conditions within the industry in which we primarily operate. The comparison of total return on investment, defined as the change in year-end stock price plus reinvested dividends, for each of the periods assumes that $100 was invested on December 31, 2015 in each of our common stock, the NYSE Composite Index and the Dow Jones U.S. Heavy Construction Index, with investment weighted on the basis of market capitalization.
The comparisons in the following graph are based on historical data and are not intended to forecast the possible future performance of our common stock.
17

Table of Contents
ITEM 6. SELECTED FINANCIAL DATA
Selected Consolidated Financial Information
The following tables present selected financial data for the last five years. This selected financial data should be read in conjunction with Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, Item 15. Exhibits and Financial Statement Schedules, and the other information included elsewhere in this Annual Report.

CONSOLIDATED OPERATING RESULTS | Year Ended December 31,
(in thousands, except per common share data) | 2020 | 2019 | 2018 | 2017 | 2016
Revenue: |  |  |  |  |
Civil | $ | 2,199,899 |  | $ | 1,779,352 |  | $ | 1,586,093 |  | $ | 1,602,175 |  | $ | 1,668,963 |
Building | 1,984,641 |  | 1,742,040 |  | 1,861,699 |  | 1,941,325 |  | 2,069,841 |
Specialty Contractors | 1,134,223 |  | 929,440 |  | 1,006,870 |  | 1,213,708 |  | 1,234,272 |
Total | 5,318,763 |  | 4,450,832 |  | 4,454,662 |  | 4,757,208 |  | 4,973,076 |
Cost of operations | (4,832,610) |  | (4,209,060) |  | (4,000,209) |  | (4,302,803) |  | (4,515,886) |
Gross profit(a) | 486,153 |  | 241,772 |  | 454,453 |  | 454,405 |  | 457,190 |
General and administrative expenses(b) | (223,809) |  | (226,916) |  | (262,577) |  | (274,928) |  | (255,270) |
Goodwill impairment(c) | — |  | (379,863) |  | — |  | — |  | — |
Income (loss) from construction operations | 262,344 |  | (365,007) |  | 191,876 |  | 179,477 |  | 201,920 |
Other income (expense)(d) | (11,853) |  | 6,667 |  | 4,256 |  | 43,882 |  | 6,977 |
Interest expense | (76,212) |  | (67,494) |  | (63,519) |  | (69,384) |  | (59,782) |
Income (loss) before income taxes | 174,279 |  | (425,834) |  | 132,613 |  | 153,975 |  | 149,115 |
Income tax (expense) benefit(e) | (21,942) |  | 65,609 |  | (34,832) |  | 569 |  | (53,293) |
Net income (loss) | 152,337 |  | (360,225) |  | 97,781 |  | 154,544 |  | 95,822 |
Less: Net income attributable to noncontrolling interests | 43,943 |  | 27,465 |  | 14,345 |  | 6,162 |  | — |
Net income (loss) attributable to Tutor Perini Corporation | $ | 108,394 |  | $ | (387,690) |  | $ | 83,436 |  | $ | 148,382 |  | $ | 95,822 |
Earnings (loss) per common share:(a)(b)(c)(d)(e) |  |  |  |  |
Basic | $ | 2.14 |  | $ | (7.72) |  | $ | 1.67 |  | $ | 2.99 |  | $ | 1.95 |
Diluted | $ | 2.12 |  | $ | (7.72) |  | $ | 1.66 |  | $ | 2.92 |  | $ | 1.92 |
Weighted-average common shares outstanding: |  |  |  |  |
Basic | 50,656 |  | 50,220 |  | 49,952 |  | 49,647 |  | 49,150 |
Diluted | 51,077 |  | 50,220 |  | 50,301 |  | 50,759 |  | 49,864 |

_____________________________________________________________________________________________________________
(a)During the year ended December 31, 2020, the Company recorded a charge of $15.2 million in gross profit ($0.22 per diluted share) due to an unfavorable legal ruling pertaining to a mechanical project in California in the Specialty Contractors segment, as well as a charge of $13.2 million ($0.19 per diluted share) due to an adverse arbitration ruling pertaining to an electrical project in New York in the Specialty Contractors segment.
During the year ended December 31, 2019, the Company recorded a charge of $166.8 million in gross profit ($2.38 per diluted share) as a result of the adverse jury verdict in the case related to the construction of SR 99 by a joint venture for which the Company holds a 45% share as a minority partner. Refer to the Alaskan Way Viaduct (SR 99) Matter discussion in Note 8 of the Notes to Consolidated Financial Statements for further discussion of this item.
During the year ended December 31, 2018, the Company recorded a charge of $17.8 million in gross profit ($0.25 per diluted share), which was primarily non-cash, as a result of the unexpected adverse outcome of an arbitration decision related to a subcontract back charge dispute on a Civil segment project in New York that was completed in 2013.
(b)During the year ended December 31, 2020, the Company recognized a gain of $25.7 million ($0.36 per diluted share) as a result of a favorable arbitration decision and subsequent settlement of the related employment dispute in the Specialty Contractors segment.
During the year ended December 31, 2019, the Company recognized a one-time gain of $37.8 million ($0.54 per diluted share) related to the Company’s acquisition of an additional 25% interest in a Civil segment joint venture for which the Company gained a controlling financial interest. The gain resulted from the remeasurement to fair value of the Company’s existing investment in the joint venture. For further discussion on the acquisition and the related remeasurement, see Note 12 of the Notes to Consolidated Financial Statements.
18

Table of Contents
(c)During the year ended December 31, 2019, the Company recorded a non-cash goodwill impairment charge of $379.9 million in income (loss) from construction operations ($6.58 per diluted share) resulting from an interim impairment test the Company performed as of June 1, 2019. For further information and breakdown of the goodwill impairment charge by segment, see Note 6 of the Notes to Consolidated Financial Statements.
(d)On June 6, 2017, the Company received $37.0 million ($0.43 per diluted share) in a cash settlement with Merrill Lynch, Pierce, Fenner & Smith Incorporated, as successor in interest to Banc of America Securities LLC and Bank of America, N.A. (collectively “BofA”). The settlement pertained to litigation, which was filed by the Company in 2011, and related to the purchase by the Company of certain auction-rate securities from BofA.
(e)Income tax expense for the year ended December 31, 2020 includes a federal tax benefit of $14.5 million ($0.28 per diluted share) arising from the carryback of net operating losses to years with a 35% statutory rate due to enactment of the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) (see Note 5 of the Notes to Consolidated Financial Statements).
As mentioned above in footnote (c), the Company recorded a $379.9 million goodwill impairment charge during 2019, of which approximately $209.5 million was not deductible for income tax purposes. The Company recognized a tax benefit totaling $49.4 million ($0.98 per diluted share) as a result of the impairment charge.
In December 2017, the Tax Cuts and Jobs Act of 2017 (“TCJA”) was enacted reducing the U.S. corporate income tax rate from 35% to 21%, effective in 2018. As a result, tax expense in 2018 through 2020 was positively impacted and in 2017 the Company recognized a favorable tax adjustment of $53.3 million ($1.05 per diluted share) primarily due to a one-time revaluation of its deferred tax assets and liabilities in connection with the adoption of the TCJA.

| As of and For the Year Ended December 31,
(in thousands, except ratios and percentages) | 2020 | 2019 | 2018 | 2017 | 2016
CONSOLIDATED FINANCIAL POSITION |  |  |  |  |
Current assets | $ | 4,080,457 |  | $ | 3,510,986 |  | $ | 3,175,643 |  | $ | 3,074,392 |  | $ | 2,837,756 |
Current liabilities | 2,264,363 |  | 2,109,856 |  | 1,597,966 |  | 1,581,846 |  | 1,518,943 |
Working capital | $ | 1,816,094 |  | $ | 1,401,130 |  | $ | 1,577,677 |  | $ | 1,492,546 |  | $ | 1,318,813 |
Current ratio | 1.80 |  | 1.66 |  | 1.99 |  | 1.94 |  | 1.87 |
Property and equipment, net of accumulated depreciation | $ | 489,217 |  | $ | 509,685 |  | $ | 490,669 |  | $ | 467,499 |  | $ | 477,626 |
Total assets | 5,045,617 |  | 4,485,777 |  | 4,387,752 |  | 4,264,123 |  | 4,038,620 |
Capitalization: |  |  |  |  |
Total debt | 1,025,465 |  | 834,476 |  | 761,504 |  | 736,276 |  | 759,519 |
Stockholders’ equity | 1,553,856 |  | 1,440,142 |  | 1,809,177 |  | 1,713,275 |  | 1,553,023 |
Total capitalization | $ | 2,579,321 |  | $ | 2,274,618 |  | $ | 2,570,681 |  | $ | 2,449,551 |  | $ | 2,312,542 |
Total debt as a percentage of total capitalization | 40 | % | 37 | % | 30 | % | 30 | % | 33 | %
Ratio of debt to equity | 0.66 |  | 0.58 |  | 0.42 |  | 0.43 |  | 0.49 |
Stockholders' equity per common share | $ | 30.57 |  | $ | 28.64 |  | $ | 36.16 |  | $ | 34.42 |  | $ | 31.56 |
OTHER DATA |  |  |  |  |
Backlog at year end | $ | 8,345,717 |  | $ | 11,221,110 |  | $ | 9,296,691 |  | $ | 7,283,434 |  | $ | 6,227,137 |
New awards | 2,443,370 |  | 6,375,262 |  | 6,467,918 |  | 5,813,505 |  | 3,735,084 |
Capital expenditures | 54,781 |  | 84,196 |  | 77,069 |  | 30,280 |  | 15,743 |
Net cash provided by operating activities | 172,772 |  | 136,530 |  | 21,402 |  | 163,550 |  | 113,336 |
Net cash used in investing activities | (46,358) |  | (76,055) |  | (70,208) |  | (87,133) |  | (13,844) |
Net cash provided by (used in) financing activities | 123,337 |  | 21,763 |  | (28,979) |  | (75,376) |  | (24,190) |

_____________________________________________________________________________________________________________
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Consolidated Financial Statements and the accompanying Notes to Consolidated Financial Statements included in Item 15. Exhibits and Financial Statement Schedules in this Annual Report. This discussion contains forward-looking statements, which involve risks and uncertainties. For cautions about relying on such forward-looking statements, please refer to the section entitled Forward-Looking Statements at the beginning of this Annual Report immediately prior to Item 1. Our actual results
19

Table of Contents
could differ materially from those anticipated in the forward-looking statements as a result of certain factors, including, but not limited to, those discussed in Item 1A. Risk Factors and elsewhere in this Annual Report.
Comparison of 2019 and 2018 Results
For a discussion comparing our 2019 results to our 2018 results, refer to Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Form 10-K for the year ended December 31, 2019, as filed with the Securities and Exchange Commission on February 26, 2020.
Executive Overview
COVID-19 Update
In the first quarter of 2020, the outbreak of a novel strain of coronavirus, COVID-19, was declared a pandemic. Efforts in the United States to prevent the spread of COVID-19 and mitigate its impacts intensified in March 2020. All 50 states in the United States declared states of emergency, and various countries around the world, including the United States, took steps to restrict travel. Many states and cities within the United States also enacted temporary closures of businesses, issued stay-at-home orders and implemented other restrictive measures in response to the pandemic. The pace of easing and the continued level of restrictions have varied across regions based on the rates of new COVID-19 cases and hospitalizations, and this variability is expected to continue until infection rates decrease to levels that are more acceptable to public health officials. Several vaccines have been developed and approved, or are in the process of being approved, and large-scale immunization programs have commenced worldwide, with recipients being offered the vaccine based upon government-approved priority classifications and schedules. These vaccines are highly effective against the original COVID-19 virus strain, but may not be as effective against certain new variants that have recently been discovered nor against other future variants.
In 2020, the COVID-19 pandemic caused a lack of available manpower, a reduction in field labor productivity, other inefficiencies, delays to project schedules, deferral of project execution and, consequently, incremental costs estimated to be in excess of $50 million, much of which we are seeking to recover from our customers as allowed by contractual terms. The relief sought from customers, some of which has already been received, helped reduce the pandemic's negative impact on our revenue for the year to an estimated $290 million and income from construction operations to an estimated $21 million (with much of the revenue and income from construction operations associated with these impacts expected to be recognized in future periods). In addition, the pandemic caused the cancellation of a transaction to sell an office building that would have resulted in other income of approximately $8 million. Altogether, we estimate that the pandemic negatively impacted EPS by $0.41 in 2020, partially offsetting the results for the year.
The vast majority of our projects, especially in the Civil segment, have been and continue to be considered essential business activities, which has allowed projects to continue while implementing new health and safety requirements. However, the COVID-19 pandemic had an adverse effect on the volume of our new awards and, correspondingly, backlog in 2020. Many of our state and local government customers’ revenue sources have been negatively impacted by the pandemic due to severely curtailed ridership on mass-transit systems (buses, subways, trains, etc.), travel on commercial airlines, and driving by the general public, which resulted in reduced fare and toll collections, lower fuel tax receipts and reduced airport and other facility usage fees. Sales and other tax revenues have also been negatively affected by reduced spending, as the retail, travel, hospitality and entertainment industries, among others, have suffered through periodic government-imposed shut-downs or occupancy restrictions. These tax revenue shortfalls led to, and could continue to result in, funding uncertainties that have caused customers to delay bid solicitations and contract awards for many of their planned infrastructure projects. Our reduced backlog combined with the possibility of continued pandemic-related delays in project bids and awards could result in lower-than-expected revenue and earnings until such time as the federal government provides supplemental funding support (should that occur) to our customers or when customers’ funding uncertainties are otherwise resolved.
While the recently commenced COVID-19 vaccination programs offer hope that society and business environments may return to a greater sense of normalcy in the second half of 2021, the timing and pace of such a return to normalcy are difficult to predict. As such, due to the fluidity of the COVID-19 pandemic, uncertainties as to its scope and duration, and ongoing changes in the way that governments, businesses and individuals react and respond to the pandemic, the Company is unable at this time to accurately predict the pandemic’s future impact on the Company’s business, results of operations, financial condition or liquidity. Among other things, governments could prohibit the continuation of certain projects that to date have been designated as “essential” or could impose health, safety and other operational requirements on such projects that could result in delays to or suspensions of such projects. In addition, employees and contractors working on such projects could be unable or unwilling to continue working on them, perhaps for extended periods, because they may be unable or unwilling to be immunized against COVID-19, or for other reasons. The COVID-19 pandemic also could negatively affect the ability of counterparties to make required payments on a timely basis or at all.
20

Table of Contents
Operating Results
Consolidated revenue for 2020 was $5.3 billion, an increase of 20% compared to $4.5 billion in 2019. The growth was primarily attributable to increased activities on several infrastructure projects in California and the Northeast, and various building projects in California. The revenue growth in 2020 was reduced by the COVID-19 impact mentioned above. Revenue in 2019 was negatively impacted by a $123.9 million reduction associated with the SR 99 charge discussed in the following paragraph.
Income from construction operations in 2020 was $262.3 million compared to a loss from construction operations of $365.0 million in 2019. Adjusted income from construction operations for 2019, which is a non-GAAP financial measure and excludes the $379.9 million non-cash goodwill impairment charge incurred in that year, was $14.9 million. (For a discussion of non-GAAP financial measures, including a reconciliation of non-GAAP financial measures to the most nearly comparable GAAP financial measures, see the section below titled Non-GAAP Financial Measures.) The increase in 2020 was driven by contributions from the above-mentioned infrastructure projects, as well as the absence of a prior-year $166.8 million pre-tax charge related to the adverse SR 99 jury verdict. (The SR 99-related charge in 2019 principally impacted the Civil segment. For additional information, refer to the Alaskan Way Viaduct (SR 99) Matter discussion in Note 8 of the Notes to Consolidated Financial Statements.) The increase was partially offset by the COVID-19 impact mentioned above.
The provision for income taxes was $21.9 million for 2020 compared to an income tax benefit of $65.6 million for 2019. The effective tax rate for 2020 was 12.6% compared to 15.4% for 2019. The effective tax rate in 2020 primarily reflects tax benefits related to provisions of the CARES Act. The income tax benefit in 2019 resulted from the pre-tax loss primarily related to the goodwill impairment and SR 99 charges mentioned above. See Corporate, Tax and Other Matters below for a discussion of the changes in the effective tax rate.
Diluted earnings per share for 2020 was $2.12 compared to diluted loss per share of $7.72 for 2019. The COVID-19 pandemic had an estimated negative impact on diluted earnings per share of $0.41 for 2020. For 2019, adjusted diluted loss per share, which is a non-GAAP financial measure and excludes the goodwill impairment charge (and the associated tax benefit) incurred in that year, was $1.14. The increase in 2020 was principally due to the factors discussed above that drove the increase in income from construction operations, as well as the impact of the favorable income tax rate in 2020.
Consolidated new awards in 2020 were $2.4 billion compared to $6.4 billion in 2019. The lower volume of new awards in 2020 was primarily due to the impacts of the COVID-19 pandemic, which delayed certain customers from moving forward with planned project bid solicitations and contract awards due to budgetary impacts, funding uncertainties and customer staffing challenges. In addition, new awards in 2020 were negatively impacted by the timing of bids and awards for certain large prospective project opportunities, which the Company expects will occur in 2021 and 2022. The Civil and Building segments were the primary contributors to the new award activity in 2020. Significant new awards included approximately $732 million for various mass-transit projects; approximately $615 million for various building projects in California; $286 million for various electrical projects in Texas, California and Florida; $271 million for several government facilities projects nationwide; and $158 million for various electrical projects in New York.
Consolidated backlog as of December 31, 2020 was $8.3 billion compared to $11.2 billion as of December 31, 2019. Backlog declined as a result of the higher current year revenue generated from near-record backlog at the end of 2019 outpacing current year new awards, which were negatively impacted by the COVID-19 pandemic. As of December 31, 2020, the mix of backlog by segment was 57% for Civil, 20% for Building and 23% for Specialty Contractors.
Most projects in the Civil segment’s backlog typically convert to revenue over a period of three to five years and in the Building and Specialty Contractors segments over a period of one to three years. We estimate that approximately $4 billion, or 47%, of our backlog as of December 31, 2020 will be recognized as revenue in 2021.
21

Table of Contents
The following table presents the changes in backlog in 2020:

(in millions) | Backlog at December 31, 2019 | New Awards in 2020(a) | Revenue Recognized in 2020 | Backlog at December 31, 2020(b)
Civil | $ | 6,037.2 |  | $ | 946.3 |  | $ | (2,199.9) |  | $ | 4,783.6 |
Building | 2,790.3 |  | 896.7 |  | (1,984.7) |  | 1,702.3 |
Specialty Contractors | 2,393.6 |  | 600.4 |  | (1,134.2) |  | 1,859.8 |
Total | $ | 11,221.1 |  | $ | 2,443.4 |  | $ | (5,318.8) |  | $ | 8,345.7 |

_____________________________________________________________________________________________________________
(a)New awards consist of the original contract price of projects added to our backlog plus or minus subsequent changes to the estimated total contract price of existing contracts.
(b)Backlog may differ from the transaction prices allocated to the remaining performance obligations as disclosed in Note 3 of the Notes to Consolidated Financial Statements. Such differences relate to the timing of executing a formal contract or receiving a notice to proceed. More specifically, backlog sometimes may include awards for which a contract has not yet been executed or a notice to proceed has not been issued, but for which there are no remaining major uncertainties that we will proceed with our work on the project (e.g., adequate funding is in place).
Because the COVID-19 pandemic remains fluid and uncertain, the Company cannot assess the degree to which it might experience future adverse impacts. The general outlook for the Company’s growth over the next several years remains favorable, particularly in the Civil and Specialty Contractors segments, but the impact of the COVID-19 pandemic could continue to adversely affect future performance and operations, and the level of new work awarded. In addition, the Company’s growth could continue to be impacted by future project delays or the timing of project commencements, ramp-up activities and completions. We anticipate that we will continue to win our share of significant new awards resulting from long-term capital spending plans by state, local and federal customers, as well as limited competition for some of the largest project opportunities. In recent elections, voters in numerous states approved dozens of long-term transportation funding measures totaling approximately $200 billion in long-term funding. The largest of these were in Los Angeles County, where Measure M, a half-cent sales tax increase, was approved and is expected to generate $120 billion of funding over 40 years, and in Seattle, Washington, where Sound Transit 3 was passed and is expected to generate $54 billion of funding over 25 years. As state and local governments continue responding to the economic burdens attributable to the COVID-19 pandemic, they may delay or cancel planned infrastructure investments due to reduced revenues from income and sales taxes, fuel taxes and tolls. The extent of such effects, their duration, and how state and local governments will respond remains uncertain, just as the scope and duration of the COVID-19 pandemic remain uncertain. However, the COVID-19 pandemic’s dramatic impact on the U.S. economy has caused interest rates to remain at historically low levels, which may be conducive to continued, and potentially increased, spending on infrastructure projects.
There has long been strong, bipartisan support for infrastructure investments in the U.S. Given the lack of substantial federal infrastructure spending over the past two decades, there now appears to be a greater likelihood for additional federal financial assistance or stimulus programs directed toward assisting state and local governments in response to the COVID-19 pandemic and/or a federal program specifically targeting significant investments in infrastructure. Such additional federal financial assistance or stimulus programs could favorably impact the Company’s current work and prospective opportunities, though the timing and magnitude of such additional federal government actions, if any, remain uncertain.
While we anticipate continued revenue growth from our existing backlog of large civil infrastructure projects on the West Coast and other projects in Guam, certain large civil projects in the Northeast are completing or will be nearing completion over the next year. The Company is pursuing several large prospective projects on the West Coast, in the Northeast and in Guam that are expected to be bid and awarded in 2021 and 2022. However, revenue could decline in 2021 because the timing and magnitude of revenue contributions from these prospective projects may not be sufficient to offset revenue reductions associated with the projects that will be completed or nearing completion in 2021. In addition, as discussed earlier, the COVID-19 pandemic has resulted in, and could potentially continue to result in, delays in the bidding and awarding of certain projects the Company is pursuing, which could further delay large new revenue streams.
For a more detailed discussion of operating performance of each business segment, corporate general and administrative expenses and other items, see Results of Segment Operations, Corporate, Tax and Other Matters and Liquidity and Capital Resources below.
Non-GAAP Financial Measures
To supplement our consolidated financial statements presented under generally accepted accounting principles in the United States (“GAAP”), we are presenting certain non-GAAP financial measures. We are providing these non-GAAP financial measures to disclose additional information to facilitate the comparison of past and present operations, and they are among the
22

Table of Contents
indicators management uses as a basis for evaluating the Company’s financial performance as well as for forecasting future periods. We believe that these non-GAAP financial measures, when considered together with our GAAP financial results, provide management and investors with an additional understanding of our business operating results, including underlying trends.
These non-GAAP financial measures, which exclude the non-cash goodwill impairment charge incurred in 2019 (as well as the tax benefit associated with this charge), include adjusted income (loss) from construction operations, adjusted net income (loss) attributable to Tutor Perini Corporation, adjusted diluted earnings (loss) per common share and adjusted effective income tax rate. We also reference adjusted operating margin for each segment, which is a non-GAAP financial measure that we define as adjusted income (loss) from construction operations as a percentage of revenue. These non-GAAP financial measures are not intended to replace the presentation of our financial results in accordance with GAAP, and they may not be comparable to other similarly titled non-GAAP financial measures presented by other companies. Reconciliations of these non-GAAP financial measures to the most nearly comparable GAAP financial measures are presented below. There were no adjustments for 2020; therefore, the non-GAAP financial measures do not differ from GAAP results in that period.
Reconciliation of Non-GAAP Financial Measures

(in millions) | Civil | Building | Specialty Contractors | Corporate | Consolidated Total
Year Ended December 31, 2019 |  |  |  |  |
Income (loss) from construction operations, as reported | $ | (150.9) |  | $ | 23.7 |  | $ | (172.6) |  | $ | (65.2) |  | $ | (365.0) |
Plus: Goodwill impairment charge | 210.2 |  | 13.5 |  | 156.2 |  | — |  | 379.9 |
Adjusted income (loss) from construction operations | $ | 59.3 |  | $ | 37.2 |  | $ | (16.4) |  | $ | (65.2) |  | $ | 14.9 |

| Year Ended December 31,
(in millions, except per common share amounts and percentages) | 2020 | 2019
Net income (loss) attributable to Tutor Perini Corporation, as reported | $ | 108.4 |  | $ | (387.7) |
Plus: Goodwill impairment charge | — |  | 379.9 |
Less: Tax benefit provided on goodwill impairment charge | — |  | (49.4) |
Adjusted net income (loss) attributable to Tutor Perini Corporation | $ | 108.4 |  | $ | (57.2) |
Diluted earnings (loss) per common share, as reported | $ | 2.12 |  | $ | (7.72) |
Plus: Goodwill impairment charge | — |  | 7.56 |
Less: Tax benefit provided on goodwill impairment charge | — |  | (0.98) |
Adjusted diluted earnings (loss) per common share | $ | 2.12 |  | $ | (1.14) |
Effective income tax rate, as reported | 12.6 | % | 15.4 | %
Tax effect of goodwill impairment charge | — | % | 19.9 | %
Adjusted effective income tax rate | 12.6 | % | 35.3 | %

Results of Segment Operations
The results of our Civil, Building and Specialty Contractors segments are discussed below:
Civil Segment
Revenue, income (loss) from construction operations and adjusted income from construction operations for the Civil segment are summarized as follows:

| Year Ended December 31,
(in millions) | 2020 |  | 2019
Revenue | $ | 2,199.9 |  |  | $ | 1,779.4 |
Income (loss) from construction operations, as reported | 245.8 |  |  | (150.9) |
Plus: Goodwill impairment charge | — |  |  | 210.2 |
Adjusted income from construction operations | 245.8 |  |  | 59.3 |

23

Table of Contents
Revenue for 2020 increased 24% compared to 2019. The revenue growth was primarily due to overall increased project execution activities on various mass-transit projects in California and Minnesota, as well as the absence of the prior-year revenue reduction associated with the adverse SR 99 jury verdict discussed in the section entitled Executive Overview. We estimate that the COVID-19 pandemic negatively impacted revenue by approximately $45 million in 2020, primarily due to the factors that affected operating results mentioned above in COVID-19 Update.
Income from construction operations was $245.8 million in 2020 compared to a loss from construction operations of $150.9 million in 2019. Excluding the impact of the goodwill impairment charge in 2019, adjusted income from construction operations was $59.3 million, reflecting an increase of 314% in 2020 compared to 2019. The increase was primarily driven by the volume growth mentioned above and improved performance on certain projects, as well as the absence of the prior-year SR 99-related charge ($155.8 million of the $166.8 million charge impacted the Civil segment in 2019). The increase was partially offset by the absence of a prior-year $37.8 million reduction in the segment's general and administrative expenses associated with the remeasurement gain that resulted from the Company increasing its ownership interest in a joint venture in 2019, as well as by an increase in non-cash amortization expense of $25.9 million in 2020, also related to that increased ownership interest. We estimate that the COVID-19 pandemic resulted in a negative impact of approximately $6 million on income from construction operations in 2020.
Operating margin was 11.2% for 2020 compared to operating margin of (8.5)% and adjusted operating margin of 3.3% in 2019. Adjusted operating margin excludes the impact of the 2019 goodwill impairment charge. The increase in adjusted operating margin for 2020 was primarily due to the factors discussed above that drove the increases in revenue and income from construction operations.
New awards in the Civil segment totaled $946 million in 2020 compared to $2.7 billion in 2019. The lower volume of new awards in 2020 compared to 2019 was primarily due to the COVID-19 pandemic, which resulted in delays in customers issuing bid solicitations and contract awards for certain planned projects. In addition, new awards in 2020 were negatively impacted by the timing of bids and awards for certain large prospective project opportunities, which the Company expects will occur in 2021 and 2022. New awards in 2020 included more than $732 million of additional funding for various mass-transit projects, the Company’s $121 million share of a joint-venture mass-transit project in Massachusetts, and a $64 million mining project in Alabama. The COVID-19 pandemic has resulted in significant revenue shortfalls for many state and local government agencies in 2020, and may continue to cause the deferrals or cancellations of certain new projects, depending on the allocation and prioritization of state and local funding, as well as the availability, timing and magnitude of anticipated supplemental funding from the federal government.
New awards in 2019 included the $1.4 billion Purple Line Section 3 Stations project and the $432 million Division 20 Portal Widening and Turnback Facility project, both in California; the $253 million Culver Line Communications-Based Train Control project in New York; and a $178 million military facilities project and a $122 million wastewater treatment project, both in Guam.
Backlog for the Civil segment was $4.8 billion as of December 31, 2020, a decrease of 21% compared to $6.0 billion as of December 31, 2019. The decrease was primarily due to strong revenue growth for the segment that exceeded the volume of new awards in 2020. The segment continues to experience strong demand reflected in a large, multi-year pipeline of prospective projects, substantial anticipated funding from various voter-approved transportation measures and public agencies’ long-term spending plans. The Civil segment is well-positioned to continue capturing its share of these prospective projects.
Building Segment
Revenue, income from construction operations and adjusted income from construction operations for the Building segment are summarized as follows:

| Year Ended December 31,
(in millions) | 2020 |  | 2019
Revenue | $ | 1,984.6 |  |  | $ | 1,742.0 |
Income from construction operations, as reported | 53.2 |  |  | 23.7 |
Plus: Goodwill impairment charge | — |  |  | 13.5 |
Adjusted income from construction operations | 53.2 |  |  | 37.2 |

Revenue for 2020 increased 14% compared to 2019, primarily due to increased project execution activities on various projects in California and Oklahoma. The increase was partially offset by reduced activity on certain projects in California that are completed or nearing completion. Revenue grew in 2020 despite the estimated negative impact of the COVID-19 pandemic of approximately $190 million, primarily due to the factors that affected operating results mentioned above in COVID-19 Update.
24

Table of Contents
Income from construction operation in 2020 was $53.2 million compared to $23.7 million in 2019. Excluding the impact of the goodwill impairment charge in 2019, adjusted income from construction operations was $37.2 million, reflecting an increase of 43% in 2020 compared to 2019. The increase was principally driven by the factors mentioned above that drove the increases in revenue, as well as increased contributions from certain higher-margin projects in 2020. We estimate that the COVID-19 pandemic resulted in a negative impact of approximately $6 million in income from construction operations during 2020.
Operating margin was 2.7% in 2020 compared to operating margin of 1.4% and adjusted operating margin of 2.1% in 2019. Adjusted operating margin excludes the impact of the 2019 goodwill impairment charge. The increase in adjusted operating margin was driven by the factors mentioned above that drove the increases in revenue and income from construction operations.
New awards in the Building segment totaled $897 million in 2020 compared to $2.2 billion in 2019, as the COVID-19 pandemic negatively impacted demand in certain end markets and, correspondingly, the timing of bids and contract awards for certain planned projects. New awards in 2020 included approximately $615 million for various building projects in California and $271 million for several government facilities projects nationwide. The COVID-19 pandemic could continue to result in delayed project opportunities.
New awards in 2019 included the Choctaw Casino and Resort project in Oklahoma; a large hospitality and gaming project in California; a $263 million courthouse project in Florida; a technology campus tenant improvement project in California valued at more than $200 million; and the $200 million Southland Gaming Casino and Hotel project in Arkansas.
Backlog for the Building segment was $1.7 billion as of December 31, 2020, a decrease of 39% compared to $2.8 billion as of December 31, 2019. The decrease was driven by revenue growth for the segment that exceeded the volume of new awards in 2020. The Building segment continues to have a large volume of prospective projects across various end markets and geographic locations. Barring any further adverse impacts from the COVID-19 pandemic, demand for our building construction services is expected to continue due to ongoing customer spending supported by a historically low interest rate environment.
Specialty Contractors Segment
Revenue, income (loss) from construction operations and adjusted income (loss) from construction operations for the Specialty Contractors segment are summarized as follows:

| Year Ended December 31,
(in millions) | 2020 |  | 2019
Revenue | $ | 1,134.2 |  |  | $ | 929.4 |
Income (loss) from construction operations, as reported | 17.2 |  |  | (172.6) |
Plus: Goodwill impairment charge | — |  |  | 156.2 |
Adjusted income (loss) from construction operations | 17.2 |  |  | (16.4) |

Revenue for 2020 increased 22% compared to 2019. The growth was principally due to increased project execution activities on certain mechanical and electrical projects in the Northeast and California. We estimate that the COVID-19 pandemic negatively impacted revenue in 2020 by approximately $55 million, primarily due to the factors that affected operating results mentioned above in COVID-19 Update.
Income from construction operations in 2020 was $17.2 million compared to a loss from construction operations of $172.6 million in 2019. Excluding the impact of the goodwill impairment charge in 2019, adjusted loss from construction operations was $16.4 million. Income from construction operations increased substantially in 2020 compared to the adjusted loss from construction operations in 2019, primarily due to the increased volume mentioned above and a gain of $25.7 million as a result of a favorable arbitration decision and subsequent settlement of the related employment dispute. The increase was also due to the absence of prior-year net unfavorable adjustments on certain electrical and mechanical projects in New York that totaled $41.5 million, none of which were individually material, and the absence of the prior-year SR 99-related charge ($11.0 million of which impacted the Specialty Contractors segment). The increase in 2020 was partially offset by various net unfavorable adjustments to project forecasts that totaled $29.8 million, none of which were individually material; a charge of $15.2 million due to an unfavorable legal ruling pertaining to a mechanical project in California; a charge of $13.2 million due to an adverse arbitration ruling on an electrical project in New York; and the estimated negative impact of the COVID-19 pandemic of approximately $9 million.
Operating margin was 1.5% in 2020 compared to operating margin of (18.6)% and adjusted operating margin of (1.8)% in 2019. Adjusted operating margin excludes the impact of the 2019 goodwill impairment charge. The changes in adjusted operating margin for both periods were mainly attributable to the aforementioned factors that drove the changes in revenue and adjusted income (loss) from construction operations.
25

Table of Contents
New awards in the Specialty Contractors segment totaled $600 million in 2020 compared to $1.5 billion in 2019, as the COVID-19 pandemic resulted in, and could continue to result in, reduced demand from certain commercial and government customers that have experienced funding constraints. New awards in 2020 included $286 million for various electrical projects in Texas, California and Florida, and $158 million for various electrical projects in New York.
New awards in 2019 included, among others, electrical and mechanical subcontracts valued at $216 million for the Purple Line Section 3 Stations project and an electrical subcontract valued at $140 million for the Division 20 Portal Widening and Turnback Facility project, both in California; and three mechanical projects collectively valued at $192 million and an electrical subcontract valued at $140 million for a mass-transit project, all in New York.
Backlog for the Specialty Contractors segment was $1.9 billion as of December 31, 2020, a decrease of 22% compared to $2.4 billion as of December 31, 2019. The decrease was primarily due to strong revenue growth for the segment that exceeded the volume of new awards in 2020. The Specialty Contractors segment continues to be increasingly focused on servicing the Company’s backlog of large Civil and Building segment projects, but also remains well-positioned to capture its share of new projects for external customers, leveraging the size and scale of our business units that operate in New York, Texas, Florida and California and the strong reputation held by these business units for high-quality work on large, complex projects.
Corporate, Tax and Other Matters
Corporate General and Administrative Expenses
Corporate general and administrative expenses were $53.9 million in 2020 compared to $65.5 million in 2019. The decrease in corporate general and administrative expenses in 2020 was predominantly due to lower share-based compensation expense, lower outside professional fees, and reduced travel expenses due to the COVID-19 pandemic.
Other Income (Expense), Interest Expense and Income Tax (Expense) Benefit

| Year Ended December 31,
(in millions) | 2020 |  | 2019
Other income (expense) | $ | (11.9) |  |  | $ | 6.7 |
Interest expense | (76.2) |  |  | (67.5) |
Income tax (expense) benefit | (21.9) |  |  | 65.6 |

Other income (expense) for 2020 was a net expense of $11.9 million compared to net other income of $6.7 million for 2019. The net expense in 2020 was primarily due to charges related to the unfavorable resolutions of certain disputes pertaining to past business acquisitions, which were not material individually or in the aggregate, while the net other income in 2019 was primarily related to a net gain on the sale of property and equipment. The COVID-19 pandemic caused the cancellation of a transaction to sell an office building that would have resulted in other income of approximately $8 million in 2020.
Interest expense increased $8.7 million in 2020 compared to 2019, almost entirely due to non-cash extinguishment costs that resulted from our debt restructuring transactions in August 2020.
The provision for income taxes was $21.9 million for 2020 compared to an income tax benefit of $65.6 million for 2019. The effective income tax rate was 12.6% for 2020 compared to 15.4% for 2019. The effective income tax rate for 2020 primarily reflects the favorable tax rate differential realized on the 2019 net operating loss (“NOL”) carryback and earnings attributable to noncontrolling interests for which income taxes are not the responsibility of the Company. Under the CARES Act, enacted on March 27, 2020, the NOL generated in 2019 may be carried back up to five years, whereas under previous rules NOLs were only allowed to be carried forward. This allowed the Company to realize the benefit of the tax rate differential by carrying back the NOL to tax years when the federal statutory tax rate was 35% rather than the current rate of 21%. These benefits to the effective tax rate were partially offset by state income taxes.
During 2019, the Company recognized a tax benefit of $65.6 million on a loss before income taxes of $425.8 million. As a result of the $379.9 million goodwill impairment charge discussed above, the Company recognized a tax benefit totaling $49.4 million. Approximately $209.5 million of the charge was not deductible for income tax purposes, which significantly reduced the tax benefit and effective income tax rate for 2019. As discussed above, the effective income tax rate for 2019 was 15.4%. The adjusted effective income tax rate for 2019, which excludes the tax benefit from the goodwill impairment charge and which is a non-GAAP financial measure, was 35.3%. The adjusted effective income tax rate for 2019 was higher than the U.S. federal statutory rate primarily due to earnings attributable to noncontrolling interests for which income taxes are not the responsibility
26

Table of Contents
of the Company, which increased the effective rate due to the pre-tax loss for the period, U.S. federal research and development tax credits, and state income taxes, partially offset by foreign tax impacts.
Liquidity and Capital Resources
Liquidity is provided by available cash and cash equivalents, cash generated from operations, credit facilities and access to capital markets. On August 18, 2020, the Company entered into a new credit agreement that provides for a term loan B facility and a revolving credit facility. We used the net proceeds to repay all borrowings under our 2017 Credit Facility and repurchase a majority of our Convertible Notes, with the remaining notes outstanding to be repaid from cash restricted for such purpose. Under the new credit agreement, we have a committed line of credit totaling $175 million, with sublimits for the issuance of letters of credit and swing line loans up to the aggregate amounts of $75.0 million and $10.0 million, respectively, which may be used for revolving loans, letters of credit and/or general purposes. We believe that cash generated from operations, along with our unused credit capacity of $175 million and available cash balances as of December 31, 2020, will be sufficient to fund any working capital needs and debt maturities for the next 12 months, provided that we are not adversely impacted by unanticipated future events, including a material increase in the negative impact of the COVID-19 pandemic as discussed above in COVID-19 Update. For a discussion of our new credit agreement and other debt transactions, see the section entitled Debt below.
Cash and Working Capital
Cash and cash equivalents were $374.3 million as of December 31, 2020 compared to $193.7 million as of December 31, 2019. Cash immediately available for general corporate purposes was $210.8 million and $43.8 million as of December 31, 2020 and 2019, respectively, with the remainder being amounts held by our consolidated joint ventures and also our proportionate share of cash held by our unconsolidated joint ventures. Cash held by our joint ventures was available only for joint venture-related uses, including distributions to joint venture partners. In addition, our restricted cash and restricted investments totaled $156.5 million as of December 31, 2020 compared to $79.4 million as of December 31, 2019. Restricted cash and restricted investments are primarily held to secure insurance-related contingent obligations. Our restricted cash as of December 31, 2020 also included $69.9 million of cash held to repay the outstanding principal balance of the Convertible Notes.
During the year ended December 31, 2020, net cash provided by operating activities was $172.8 million (which is a new record high for any year since the 2008 merger of Tutor-Saliba and Perini), due primarily to cash generated from earnings sources, partially offset by investment in working capital. The increase in working capital for the year ended December 31, 2020 primarily reflects an increase in costs and estimated earnings in excess of billings and an increase in accounts receivable due to timing of collections, partially offset by an increase in accounts payable due to timing of payments to suppliers and subcontractors. The increase in costs and estimated earnings in excess of billings was driven in part by impacts of the COVID-19 pandemic, which caused delays in the negotiation and resolution of certain claims and unapproved change orders (due to the postponement of certain legal and arbitration proceedings, as well as deferments of certain settlement discussions) and constrained customers’ revenue and funding sources, thereby limiting their budgetary discretion to pay the Company for changes approved in scope but for which pricing is pending. During the year ended December 31, 2019, net cash provided by operating activities was $136.5 million, due primarily to changes in net investment in working capital and cash generated from income sources. Those changes in working capital primarily reflected an increase in billings in excess of costs and estimated earnings (“BIE”), partially offset by increases in accounts receivable and retainage receivable.
The $36.2 million increase in cash provided by operating activities when comparing 2020 with 2019 primarily reflects the significant increase in cash from earnings sources, partially offset by an increase in investment in working capital principally due to a smaller increase in BIE.
During 2020 and 2019, we used $46.4 million and $76.1 million of cash from investing activities, respectively. The net cash used in investing activities for 2020 and 2019 was primarily due to the acquisition of property and equipment for projects, which totaled $54.8 million and $84.2 million, respectively. The majority of our capital expenditures for both years was for project-specific equipment purchased by our joint ventures and funded directly by our customers.
During 2020, net cash provided by financing activities was $123.3 million, which was primarily driven by increased net borrowings of $181.4 million, partially offset by $48.5 million of cash distributions to noncontrolling interests and debt issuance costs of $11.2 million. During 2019, we generated $21.8 million of cash from financing activities principally due to increased net borrowings of $61.3 million and contributions from noncontrolling interests of $9.8 million, partially offset by distributions to noncontrolling interests of $46.5 million.
27

Table of Contents
As of December 31, 2020, we had working capital of $1.8 billion, a ratio of current assets to current liabilities of 1.80 and a ratio of debt to equity of 0.66 compared to working capital of $1.4 billion, a ratio of current assets to current liabilities of 1.66 and a ratio of debt to equity of 0.58 at December 31, 2019.
Debt
Summarized below are the key terms of our debt as of December 31, 2020. For additional information, refer to Note 7 of the Notes to Consolidated Financial Statements, as applicable.
2020 Credit Agreement
On August 18, 2020, the Company entered into a new credit agreement (the “2020 Credit Agreement”) with BMO Harris Bank N.A., as Administrative Agent, Swing Line Lender and L/C Issuer and other lenders. The 2020 Credit Agreement provides for a $425.0 million term loan B facility (the “Term Loan B”) and a $175.0 million revolving credit facility (the “2020 Revolver”), with sublimits for the issuance of letters of credit and swing line loans up to the aggregate amounts of $75.0 million and $10.0 million, respectively. The Term Loan B will mature on August 18, 2027 and the 2020 Revolver will mature on August 18, 2025, in each case, unless any of the 2017 Senior Notes are outstanding on January 30, 2025 (which is 91 days prior to the maturity of the 2017 Senior Notes), in which case, both the Term Loan B and the 2020 Revolver will mature on January 30, 2025 (subject to certain further exceptions). For more information regarding the terms of our 2020 Credit Agreement, refer to Note 7 of the Notes to Consolidated Financial Statements.
The table below presents our actual and required first lien net leverage ratio under the 2020 Credit Agreement for the period, which is calculated on a rolling four-quarter basis:

| Trailing Four Fiscal Quarters Ended
| December 31, 2020
| Actual |  | Required
First lien net leverage ratio | 0.69 to 1.00 |  | < or = 2.75 : 1.00

As of December 31, 2020, we were in compliance and expect to continue to be in compliance with the covenants under the 2020 Credit Agreement.
Termination of 2017 Credit Facility and Repurchase of Convertible Notes
On April 20, 2017, the Company entered into a credit agreement (the “2017 Credit Facility”) with SunTrust Bank, now known as Truist Bank, as Administrative Agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The 2017 Credit Facility provided for a $350 million revolving credit facility and a sublimit for the issuance of letters of credit and swing line loans up to the aggregate amount of $150 million and $10 million, respectively, both maturing on April 20, 2022 unless any of the Convertible Notes, as defined below, were outstanding on December 17, 2020, in which case all such borrowings would have matured on December 17, 2020 (the “spring-forward provision”).
On August 18, 2020, the Company used proceeds from the Term Loan B to repay outstanding amounts under its 2017 Credit Facility. As a result of repaying the outstanding amounts under the 2017 Credit Facility and entering into the 2020 Credit Agreement, the Company terminated the 2017 Credit Facility, including its spring-forward provision that would have accelerated the maturity of the facility to December 17, 2020.
On June 15, 2016, the Company issued $200 million of 2.875% Convertible Senior Notes due June 15, 2021 (the “Convertible Notes”) in a private placement offering. On August 19, 2020, the Company used proceeds from the Term Loan B to repurchase $130.1 million aggregate principal amount of its Convertible Notes for an aggregate purchase price of $132.4 million (including accrued and unpaid interest to the repurchase date). At December 31, 2020, $69.9 million ($67.9 million net of unamortized discount and debt issuance costs) remain outstanding and are included in “Current maturities of long-term debt” on the Consolidated Balance Sheet. The Company will repurchase or retire at or before maturity the remaining Convertible Notes and repay the principal balance using available proceeds from the Term Loan B, which are currently held in a restricted cash account for such purpose.
The Convertible Notes are unsecured obligations of the Company and do not contain any financial covenants or restrictions on the payments of dividends, the incurrence of indebtedness or the issuance or repurchase of securities by the Company. The Convertible Notes bear interest at a rate of 2.875% per year, payable in cash semi-annually in June and December. Upon conversion, and at the Company’s election, the Company may satisfy its conversion obligation with cash, shares of its common stock or a combination thereof. As of December 31, 2020, the conversion provisions of the Convertible Notes have not been triggered.
28

Table of Contents
2017 Senior Notes
On April 20, 2017, the Company issued $500 million in aggregate principal amount of 6.875% Senior Notes due May 1, 2025 (the “2017 Senior Notes”) in a private placement offering. Interest on the 2017 Senior Notes is payable in arrears semi-annually in May and November of each year, beginning in November 2017.
Equipment Financing and Mortgages
The Company has certain loans entered into for the purchase of specific property, plant and equipment and secured by the assets purchased. The aggregate balance of equipment financing loans was approximately $36.9 million and $27.7 million at December 31, 2020 and 2019, respectively, with interest rates ranging from 2.74% to 3.89% with equal monthly installment payments over periods up to seven years with balloon payments of $12.4 million in 2021 and $6.3 million in 2022. The aggregate balance of mortgage loans was approximately $10.7 million and $11.5 million at December 31, 2020 and 2019, respectively, with interest rates ranging from LIBOR plus 3% to a fixed 3.50% and equal monthly installment payments over periods up to 10 years with balloon payments of $2.9 million in 2021 and $6.8 million in 2023.
Contractual Obligations
Our outstanding contractual obligations as of December 31, 2020 are summarized in the following table:

|  |  | Payments Due
(in thousands) | Total |  | Less than 1 year |  | 1-3 years |  | 3-5 years |  | More than 5 years
Debt(a) | $ | 1,047,714 |  |  | $ | 102,228 |  |  | $ | 29,104 |  |  | $ | 513,654 |  |  | $ | 402,728 |
Interest on debt(a) | 313,225 |  |  | 61,293 |  |  | 118,409 |  |  | 93,599 |  |  | 39,924 |
Operating leases | 107,891 |  |  | 12,512 |  |  | 18,251 |  |  | 11,495 |  |  | 65,633 |
Pension benefit payments(b) | 5,263 |  |  | 4,265 |  |  | 998 |  |  | — |  |  | — |
Other | 10,937 |  |  | 1,504 |  |  | 752 |  |  | — |  |  | 8,681 |
Total | $ | 1,485,030 |  |  | $ | 181,802 |  |  | $ | 167,514 |  |  | $ | 618,748 |  |  | $ | 516,966 |

_____________________________________________________________________________________________________________
(a)Debt and interest on debt exclude unamortized debt discounts and deferred debt issuance costs. Amounts for interest on debt are based on interest rates in effect as of December 31, 2020.
(b)The Company utilizes current actuarial assumptions in determining the expected minimum contributions to fund our defined benefit pension and other post-retirement plans. Estimated contributions for periods beyond the scope of the actuarial assumptions have not been included because, in management’s judgment, such estimates may not be reliable.
Off-Balance Sheet Arrangements
None.
Critical Accounting Policies
Our discussion and analysis of our financial condition and results of operations is based upon our Consolidated Financial Statements, which have been prepared in accordance with GAAP. Our significant accounting policies are described in Note 1 of the Notes to Consolidated Financial Statements. The preparation of the Consolidated Financial Statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. Estimates are based on information available through the date of the issuance of the financial statements; accordingly, actual results in future periods could differ from these estimates. Effective January 1, 2018, the Company adopted Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers (“ASC 606”). See Note 1(d), Note 3 and Note 4 of the Notes to Consolidated Financial Statements for more information. Significant judgments and estimates used in the preparation of the Consolidated Financial Statements apply to the following critical accounting policies:
Method of Accounting for Contracts — Contract revenue is recognized over time using the cost-to-cost method which measures progress towards completion based on the ratio of contract costs incurred to date compared to total estimated costs for each performance obligation. The estimates used in accounting for contracts with customers require judgment and assumptions regarding both future events and the evaluation of contingencies such as the impact of change orders, liability claims, other contract disputes, the achievement of contractual performance standards and potential variances in project schedule and costs. Changes to the total estimated contract cost, either due to unexpected events or revisions to management’s initial estimates, for a given project are recognized in the period in which they are determined.
29

Table of Contents
In certain instances, we provide guaranteed completion dates and/or achievement of other performance criteria. Failure to meet schedule or performance guarantees could result in unrealized incentive fees and/or liquidated damages. In addition, depending on the type of contract, unexpected increases in contract cost may be unrecoverable, resulting in total cost exceeding revenue realized from the projects. The Company generally provides limited warranties for work performed, with warranty periods typically extending for a limited duration following substantial completion of the Company’s work on a project. Historically, warranty claims have not resulted in material costs incurred.
Claims arising from construction contracts have been made against the Company by customers, and the Company has made claims against customers for costs incurred in excess of current contract provisions. The Company recognizes revenue for claims as variable consideration in accordance with ASC 606. Assumptions as to the occurrence of future events and the likelihood and amount of variable consideration are made during the contract performance period. Estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of anticipated performance and all information (historical, current and forecasted) that is reasonably available to management. Estimated amounts are only included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Back charges to suppliers or subcontractors are recognized as a reduction of cost when it is determined that recovery of such cost is probable and the amounts can be reliably estimated. Disputed back charges are recognized when the same requirements described above for variable consideration have been satisfied.
Construction Joint Ventures — Certain contracts are executed through joint ventures. The arrangements are often formed for the execution of single contracts or projects and allow the Company to share risks and secure specialty skills required for project execution.
In accordance with ASC 810, Consolidation (“ASC 810”) the Company assesses its joint ventures at inception to determine if any meet the qualifications of a variable interest entity (“VIE”). The Company considers a joint venture a VIE if either (a) the total equity investment is not sufficient to permit the entity to finance its activities without additional subordinated financial support, (b) characteristics of a controlling financial interest are missing (either the ability to make decisions through voting or other rights, the obligation to absorb the expected losses of the entity or the right to receive the expected residual returns of the entity), or (c) the voting rights of the equity holders are not proportional to their obligations to absorb the expected losses of the entity and/or their rights to receive the expected residual returns of the entity and substantially all of the entity’s activities either involve or are conducted on behalf of an investor that has disproportionately few voting rights. Upon the occurrence of certain events outlined in ASC 810, the Company reassesses its initial determination of whether the joint venture is a VIE.
The Company also evaluates whether it is the primary beneficiary of each VIE and consolidates the VIE if the Company has both (a) the power to direct the economically significant activities of the entity and (b) the obligation to absorb losses of, or the right to receive benefits from, the entity that could potentially be significant to the VIE. The Company considers the contractual agreements that define the ownership structure, distribution of profits and losses, risks, responsibilities, indebtedness, voting rights and board representation of the respective parties in determining whether it qualifies as the primary beneficiary. The Company also considers all parties that have direct or implicit variable interests when determining whether it is the primary beneficiary. When the Company is determined to be the primary beneficiary, the VIE is consolidated. In accordance with ASC 810, management’s assessment of whether the Company is the primary beneficiary of a VIE is performed continuously.
For construction joint ventures that do not need to be fully consolidated, the Company accounts for its interest in the joint ventures using the proportionate consolidation method, whereby the Company’s proportionate share of the joint ventures’ assets, liabilities, revenue and cost of operations are included in the appropriate classifications in the Company’s consolidated financial statements. Intercompany balances and transactions are eliminated. See Note 1(b) and Note 13 of the Notes to Consolidated Financial Statements for additional discussion regarding VIEs.
Recoverability of Goodwill — Goodwill represents the excess of amounts paid over the fair value of net assets acquired from an acquisition. In order to determine the amount of goodwill resulting from an acquisition, we perform an assessment to determine the value of the acquired company's tangible and identifiable intangible assets and liabilities. In our assessment, we determine whether identifiable intangible assets exist, which typically include backlog, customer relationships and trade names.
We test goodwill for impairment annually as of October 1 of each year. This test requires us to estimate the fair value of each reporting unit carrying goodwill using income and market approaches, and to compare the calculated fair value of each reporting unit to its carrying value, which is equal to the reporting unit’s net assets. If the calculated fair value of a reporting unit is less than its carrying value, we recognize an impairment charge equal to the difference.
30

Table of Contents
The impairment evaluation process requires assumptions that are subject to a high degree of judgment such as revenue growth rates, profitability levels, discount rates, industry market multiples and weighted-average cost of capital. Changes in these assumptions would impact the results of our impairment tests.
During interim periods, including those subsequent to the Company’s October 1 annual test date, we evaluate events and circumstances, including, but not limited to, an examination of macroeconomic conditions, cost factors, overall financial performance by each reporting unit, other relevant entity-specific events, and trends in the stock prices of our Company and peers to determine if such factors indicate that it is likely that the goodwill for one or more of our reporting units is impaired, thus warranting the performance of a quantitative impairment test sooner than the fourth quarter of the year. The Company performed an interim impairment test as of June 1, 2019 and recognized a non-cash impairment loss totaling $379.9 million, which eliminated the carrying value of goodwill for the Building and Specialty Contractors reporting units. See Note 1(g) and Note 6 of the Notes to Consolidated Financial Statements.
During the fourth quarter of 2020, we conducted our annual goodwill impairment test and determined that goodwill was not impaired since the estimated fair value of the Civil reporting unit exceeded its net book value by a significant amount. As such, there is a risk of goodwill impairment if future events are less favorable than what we assumed or estimated in our impairment analysis.
The Company has considered relevant events and circumstances since the annual goodwill impairment test, including, but not limited to, an examination of macroeconomic conditions, industry and market conditions, impacts from the COVID-19 pandemic, cost factors, overall financial performance by each reporting unit, other relevant entity-specific events, and trends in the stock prices of the Company and its peers. In considering the totality of qualitative factors known as of the reporting date, we determined that no triggering events occurred or circumstances changed since our October 1, 2020 annual test that would more likely than not reduce the fair value of the Civil reporting unit below its carrying amount. We will continue to monitor events occurring or circumstances changing which may suggest that goodwill should be reevaluated. These events and circumstances include, but are not limited to, changes in the overall financial performance of the Civil reporting unit, impacts to our business as a result of the COVID-19 pandemic, as well as other quantitative and qualitative factors specific to the Civil reporting unit which indicate potential triggering events that would more likely than not reduce the fair value of the Civil reporting unit below its carrying amount.
New Accounting Pronouncements — For discussion of recently adopted accounting standards and updates, see Note 1 of the Notes to Consolidated Financial Statements.
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We do not enter into derivative financial instruments for trading, speculation or other purposes that would expose the Company to market risk. In the normal course of business, our results of operations are exposed to certain market risks, primarily associated with fluctuations in interest rates. Borrowings under our 2020 Credit Agreement and certain other debt obligations have variable interest rates subject to interest rate risk. See Note 7 of the Notes to Consolidated Financial Statements for further discussion of our 2020 Credit Agreement. We had approximately $431.5 million and $121.9 million of borrowings with variable interest rates as of December 31, 2020 and 2019, respectively. If short-term floating interest rates on these borrowings were to change by 0.50% and our variable indebtedness were to remain unchanged, interest expense would increase or decrease by approximately $2.2 million for the next twelve months.
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
The Report of Independent Registered Public Accounting Firm and Consolidated Financial Statements are set forth in Item 15 in this Annual Report on Form 10-K and are incorporated herein by reference.
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
None.
ITEM 9A. CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures — An evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as defined by Rule 13a-15(e) under the Exchange Act, as of December 31, 2020 was made under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of December 31, 2020, our disclosure controls and procedures were effective, in that they provide reasonable assurance that
31

Table of Contents
information required to be disclosed in our reports filed or submitted under the Exchange Act were recorded, processed, summarized and reported within the time periods specified in the SEC’s rules. Our disclosure controls and procedures are designed to ensure that information we are required to disclose in such reports is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosures.
Management’s Report on Internal Control over Financial Reporting — Our management, under the supervision of our Chief Executive Officer and Chief Financial Officer, is responsible for establishing and maintaining an adequate system of internal control over financial reporting as such term is defined in Exchange Act Rules 13a-15(f). In designing and evaluating our system of internal control over financial reporting, we recognize that inherent limitations exist in any control system no matter how well designed and operated, and we can only provide reasonable, not absolute, assurance of achieving the desired control objectives. In making this assessment, management utilized the criteria issued in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management concluded that, as of December 31, 2020, our internal control over financial reporting was effective based on those criteria.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. In addition, projections of any evaluation of the effectiveness to future periods are subject to the risk that controls may become inadequate due to changes in conditions, or that the degree of compliance with policies and procedures may deteriorate.
Deloitte & Touche LLP, the independent registered public accounting firm that audited our consolidated financial statements included in this Annual Report on Form 10-K, has issued an attestation report on the Company’s internal control over financial reporting as of December 31, 2020.
Changes in Internal Control over Financial Reporting — There were no changes in our internal control over financial reporting for the quarter ended December 31, 2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
32

Table of Contents
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Stockholders and the Board of Directors of Tutor Perini Corporation
Opinion on Internal Control over Financial Reporting
We have audited the internal control over financial reporting of Tutor Perini Corporation and subsidiaries (the “Company”) as of December 31, 2020, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2020, of the Company and our report dated February 24, 2021, expressed an unqualified opinion on those financial statements.
Basis for Opinion
The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
Definition and Limitations of Internal Control over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
/s/ Deloitte & Touche LLP
Los Angeles, CA
February 24, 2021
33

Table of Contents
ITEM 9B. OTHER INFORMATION
None.
PART III.
ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by this Item 10 is hereby incorporated by reference from our definitive proxy statement to be filed within 120 days after the end of 2020.
We have adopted a Code of Business Conduct and Ethics that applies to all of our directors, officers and employees, including our principal executive, principal financial and principal accounting officers. Our Code of Business Conduct and Ethics is posted on our website located at http://investors.tutorperini.com/corporate-governance/overview/default.aspx. We intend to disclose future amendments to certain provisions of the Code of Business Conduct and Ethics, and waivers of the Code of Business Conduct and Ethics granted to executive officers and directors, on the website within four business days following the date of the amendment or waiver.
ITEM 11. EXECUTIVE COMPENSATION
The information required by this Item 11 is hereby incorporated by reference from our definitive proxy statement to be filed within 120 days after the end of 2020.
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
The information required by this Item 12 is hereby incorporated by reference from our definitive proxy statement to be filed within 120 days after the end of 2020.
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required by this Item 13 is hereby incorporated by reference from our definitive proxy statement to be filed within 120 days after the end of 2020.
ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
The information required by this Item 14 is hereby incorporated by reference from our definitive proxy statement to be filed within 120 days after the end of 2020.
PART IV.
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
Tutor Perini Corporation and Subsidiaries
(a) List of Documents Filed as a Part of This Report.
1. Financial Statements:
Our Consolidated Financial Statements as of December 31, 2020 and 2019 and for each of the three years in the period ended December 31, 2020 and the Notes thereto, together with the Report of Independent Registered Public Accounting Firm on those Consolidated Financial Statements are hereby filed as part of this Annual Report on Form 10-K, beginning on page F-1.
2. Financial Statement Schedules:
All consolidated financial statement schedules are omitted because of the absence of the conditions under which they are required or because the required information is included in the Consolidated Financial Statements and in the Notes thereto.
3. Exhibits:
See exhibits listed under Part (b) below.
34

Table of Contents
(b) Exhibits.
EXHIBIT INDEX
The following designated exhibits are, as indicated below, either filed herewith or have heretofore been filed with the SEC under the Securities Act or the Exchange Act and are referred to and incorporated herein by reference to such filings.

Exhibit 3. | Articles of Incorporation and By-laws
3.1 | Amended and Restated Articles of Organization of Tutor Perini Corporation, as filed with the Secretary of the Commonwealth of Massachusetts on July 8, 2020 (incorporated by reference to Exhibit 3.1 to Form 10-Q filed on July 29, 2020).
3.2 | Third Amended and Restated By-laws of Tutor Perini Corporation (incorporated by reference to Exhibit 3.5 to Form 10-Q filed on August 2, 2016).
Exhibit 4. | Instruments Defining the Rights of Security Holders, Including Indentures
4.1 | Shareholders Agreement, dated April 2, 2008, by and among Tutor Perini Corporation, Ronald N. Tutor and the shareholders of Tutor-Saliba Corporation signatory thereto (incorporated by reference to Exhibit 4.1 to Form 8-K filed on April 7, 2008).
4.2 | Amendment No. 1 to the Shareholders Agreement, dated September 17, 2010, by and between Tutor Perini Corporation and Ronald N. Tutor, as shareholder representative (incorporated by reference to Exhibit 4.1 to Form 8-K filed on September 20, 2010).
4.3 | Amendment No. 2 to the Shareholders Agreement, dated June 2, 2011, by and between Tutor Perini Corporation and Ronald N. Tutor, as shareholder representative (incorporated by reference to Exhibit 4.1 to Form 8-K filed on June 6, 2011).
4.4 | Amendment No. 3 to the Shareholders Agreement, dated September 13, 2011, by and between Tutor Perini Corporation and Ronald N. Tutor, as shareholder representative (incorporated by reference to Exhibit 4.1 to Form 8-K filed on September 16, 2011).
4.5 | Indenture, dated June 15, 2016, by and between Tutor Perini Corporation and Wilmington Trust, National Association (incorporated by reference to Exhibit 4.1 to Form 8-K filed on June 16, 2016).
4.6 | Indenture, dated April 20, 2017, among Tutor Perini Corporation, the guarantors named therein and Wilmington Trust, National Association, as trustee (incorporated by reference to Exhibit 4.1 to Form 8-K filed on April 25, 2017).
4.7 | Description of Securities.
Exhibit 10. | Material Contracts
10.1* | Form of Director and Officer Indemnification Agreement (incorporated by reference to Exhibit 10.19 to Amendment No. 1 to Form S-1 (File No. 333-111338) filed on February 10, 2004).
10.2* | 2009 General Incentive Compensation Plan (incorporated by reference to Annex B to the Company’s Definitive Proxy Statement on Schedule 14A filed on April 17, 2009).
10.3* | Amended and Restated Tutor Perini Corporation Long-Term Incentive Plan (as amended on October 2, 2014) (incorporate d by reference to Exhibit A to the Company’s Definitive Proxy Statement on Schedule 14A filed on October 2, 2014).
10.4* | Tutor Perini Corporation Incentive Compensation Plan (incorporated by reference to Exhibit 10.1 to Form 8-K filed on May 26, 2017).
10.5* | Tutor Perini Corporation Omnibus Incentive Plan (incorporated by reference to Exhibit 10.1 to Form 8-K filed on May 25, 2018).
10.6* | Amended and Restated Employment Agreement, dated December 22, 2014, by and between Tutor Perini Corporation and Ronald N. Tutor (incorporated by reference to Exhibit 10.1 to Form 8-K filed on December 24, 2014).
10.7* | Amendment No. 1 to Amended and Restated Employment Agreement, dated January 5, 2018, by and between Tutor Perini Corporation and Ronald N. Tutor (incorporated by reference to Exhibit 10.1 to Form 8-K filed on January 8, 2018).
10.8 | Commercial Lease Agreement, dated April 18, 2014, by and among Tutor Perini Corporation and Ronald N. Tutor (incorporated by reference to Exhibit 10.1 to Form 10-Q filed on May 7, 2014).
10.9 | Fontana Property Lease Agreement, dated April 18, 2014, by and among Tutor Perini Corporation and Kristra Investments, Ltd. (incorporated by reference to Exhibit 10.2 to Form 10-Q filed on May 7, 2014).
10.10 | Assignment and Assumption Agreement, dated January 15, 2015, by and among Ronald N. Tutor and the Ronald N. Tutor Separate Property Trust (incorporate d by reference to Exhibit 10.1 to Form 10-Q filed on November 4, 2020).
10.11 | Assignment and Assumption Agreement, dated March 3, 2015, by and among the Ronald N. Tutor Separate Property Trust and Kristra Investments, Ltd. (incorporate d by reference to Exhibit 10.2 to Form 10-Q filed on November 4, 2020).

35

Table of Contents

10.12 | First Amendment to Commercial Lease Agreement, dated October 7, 2020, by and among Tutor Perini Corporation and Aliaron Investments, Ltd. (incorporate d by reference to Exhibit 10.3 to Form 10-Q filed on November 4, 2020).
10.13 | First Amendment to Fontana Property Lease Agreement, dated October 7, 2020, by and among Tutor Perini Corporation and Aliaron Investments, Ltd. (incorporate d by reference to Exhibit 10.4 to Form 10-Q filed on November 4, 2020).
10.14 | Second Amendment to Commercial Lease Agreement, dated December 2 8, 2020, by and among Tutor Perini Corporation and Aliaron Investments, Ltd.
10.15 | Second Amendment to Fontana Property Lease Agreement, dated December 28, 2020, by and among Tutor Perini Corporation and Aliaron Investments, Ltd.
10.16 | Third Amendment to Commercial Lease Agreement, dated February 19, 2021, by and among Tutor Perini Corporation and Aliaron Investments, Ltd.
10.17 | Third Amendment to Fontana Property Lease Agreement, dated February 19, 2021, by and among Tutor Perini Corporation and Aliaron Investments, Ltd.
10.18* | Amended and Restated Employment Agreement, dated November 1, 2016, by and between James A. Frost and Tutor Perini Corporation (incorporated by reference to Exhibit 10.1 to Form 10-Q filed on November 2, 2016).
10.19* | Employment Agreement, dated September 6, 2017, by and between Tutor Perini Corporation and Gary G. Smalley (incorporated by reference to Exhibit 10.1 to Form 8-K filed on September 8, 2017).
10.20* | Employment Offer Letter, dated June 12, 2018, by and between Tutor Perini Corporation and Wendy A. Hallgren (incorporated by reference to Exhibit 10.1 to Form 10-Q filed on November 7, 2018).
10.21* | Separation Benefits Agreement, dated September 17, 2019, by and between Tutor Perini Corporation and Wendy A. Hallgren (incorporated by reference to Exhibit 10.1 to Form 8-K filed on September 20, 2019).
10.22* | Employment Offer Letter, dated July 19, 2019, by and between Tutor Perini Corporation and Jean J. Abiassi (incorporated by reference to Exhibit 10.1 to Form 10-Q filed on May 6, 2020).
10.23* | Form of Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.2 to Form 10-Q filed on November 6, 2019).
10.24* | Form of Restricted Stock Unit Award Agreement with Guarantee (incorporated by reference to Exhibit 10.3 to Form 10-Q filed on November 6, 2019).
10.25* | Form of Stock Option Agreement (incorporated by reference to Exhibit 10.4 to Form 10-Q filed on November 6, 2019).
10.26 | Credit Agreement, dated as of August 18, 2020, among Tutor Perini Corporation, BMO Harris Bank N.A., as Administrative Agent, Swing Line Lender and L/C Issuer and the other lenders party thereto (incorporated by reference to Exhibit 10.1 to Form 8-K filed on August 19, 2020).
Exhibit 21 | Subsidiaries of Tutor Perini Corporation.
Exhibit 23 | Consent of Independent Registered Public Accounting Firm.
Exhibit 24 | Power of Attorney executed by members of the Company’s Board of Directors allowing Management to sign the Company’s Form 10-K on their behalf.
Exhibit 31.1 | Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit 31.2 | Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
Exhibit 32.1 | Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Exhibit 32.2 | Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
Exhibit 95 | Mine Safety Disclosure.
Exhibit 101.INS | Inline XBRL Instance Document – The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
Exhibit 101.SCH | Inline XBRL Taxonomy Extension Schema Document.
Exhibit 101.CAL | Inline XBRL Taxonomy Extension Calculation Linkbase Document.
Exhibit 101.LAB | Inline XBRL Taxonomy Extension Label Linkbase Document.
Exhibit 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase Document.
Exhibit 101.DEF | Inline XBRL Taxonomy Extension Definition Linkbase Document.
Exhibit 104 | Cover Page Interactive Data File - The cover page from the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, formatted in Inline XBRL (included as Exhibit 101).

_____________________________________________________________________________________________________________
* Management contract or compensatory plan or arrangement
36

Table of Contents
ITEM 16. FORM 10-K SUMMARY
None.
37

Table of Contents
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| Tutor Perini Corporation
| (Registrant)
Date: February 24, 2021 | By: | /s/ Gary G. Smalley
| Gary G. Smalley
| Executive Vice President and Chief Financial Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature |  | Title |  | Date
= Principal Executive Officer and Director |  |  |  |
/s/ Ronald N. Tutor |  |  |  |
Ronald N. Tutor |  | Chairman and Chief Executive Officer |  | February 24, 2021
= Principal Financial Officer |  |  |  |
/s/ Gary G. Smalley |  |  |  |
Gary G. Smalley |  | Executive Vice President and Chief Financial Officer |  | February 24, 2021
= Principal Accounting Officer |  |  |  |
/s/ Ryan J. Soroka |  |  |  |
Ryan J. Soroka |  | Vice President and Chief Accounting Officer |  | February 24, 2021

= Other Directors |  |
Peter Arkley | ) |
Sidney J. Feltenstein | ) |
James A. Frost | ) |
Michael F. Horodniceanu | ) | /s/ Gary G. Smalley
Michael R. Klein | ) | Gary G. Smalley
Robert C. Lieber | ) | Attorney in Fact
Dennis D. Oklak | ) |
Raymond R. Oneglia | ) |
Dale A. Reiss | ) |
Dickran M. Tevrizian, Jr. | ) | Dated: February 24, 2021

38

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
TABLE OF CONTENTS

| Page
Consolidated Financial Statements of the Registrant |
Report of Independent Registered Public Accounting Firm | F-2
Consolidated Statements of Operations | F-5
Consolidated Statements of Comprehensive Income (Loss) | F-6
Consolidated Balance Sheets | F-7
Consolidated Statements of Cash Flows | F-8
Consolidated Statements of Changes in Equity | F-9
Notes to Consolidated Financial Statements | F-10

F-1

Table of Contents
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Stockholders and the Board of Directors of Tutor Perini Corporation
Opinion on the Financial Statements
We have audited the accompanying consolidated balance sheets of Tutor Perini Corporation and subsidiaries (the “Company”) as of December 31, 2020 and 2019, the related consolidated statements of operations, comprehensive income (loss), changes in equity, and cash flows, for each of the three years in the period ended December 31, 2020, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020, in conformity with accounting principles generally accepted in the United States of America.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 24, 2021, expressed an unqualified opinion on the Company's internal control over financial reporting.
Basis for Opinion
These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matters communicated below are matters arising from the current-period audit of the financial statements that were communicated or required to be communicated to the audit committee and that (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.
Revenue, Accounts Receivable, Contract Assets and Liabilities — Accounting for Construction Contracts– Refer to Notes 1, 3, 4, and 8 to the consolidated financial statements
Critical Audit Matter Description
The Company recognizes revenue for construction contracts over the contract term (“over time”) as construction work progresses. The accounting for these contracts involves judgment, particularly as it relates to the process of determining total estimated revenue (transaction price) and estimating total costs to be incurred at contract completion. Costs of operations are typically recognized as incurred, and the Company’s revenues, including estimated profits, are recorded proportionately as costs are incurred based on the ratio of costs incurred to date to the total estimated costs at completion for the respective performance obligations. Assumptions as to the occurrence of future events and the likelihood and amount of variable consideration, including the impact of change orders, claims, contract disputes and the achievement of contractual performance criteria, and award or other incentive fees are made during the contract performance period (collectively referred to as “variable consideration”). The Company estimates variable consideration at the most likely amount it expects to receive, and includes estimated amounts in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Also, the Company often engages subcontractors, suppliers, or vendors, to provide underlying materials or services, or a combination of both. Judgment
F-2

Table of Contents
is involved in determining estimated recoveries from disputes regarding performance under these contracts (“back charges”), which are a reduction in costs and are recorded as a receivable on the consolidated balance sheet.
Given the significant judgment necessary to account for the Company’s construction contracts including the use of estimates, such as total estimated revenue, total costs to be incurred at contract completion, variable consideration and back charges, which are complex and subject to many variables, auditing the corresponding balances and related accounting estimates required extensive audit effort due to the complexity of these estimates, and a high degree of auditor judgment when performing audit procedures and evaluating the results of those procedures.
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to management’s estimates and judgments included within the Company’s total estimated revenues, total costs to be incurred at contract completion, variable consideration, and back charges included the following, among others:
•We tested the effectiveness of controls over revenues, including those over the determination of estimated costs at completion of the contract, total estimated revenue (including the estimated percentage of completion), variable consideration (including significant change orders and claims), and back charges.
•We selected a sample of construction contracts and performed the following:
◦Compared the total estimated revenue (transaction price), including estimated variable consideration, to the consideration expected to be received based on current rights and obligations under the contracts and any modifications that were agreed upon with the customers.
◦We evaluated the reasonableness of the estimated variable consideration by 1) evaluating the information supporting management’s judgment as to the cause and contractual rights and 2) testing the accuracy of the identification of the underlying costs.
◦Tested the accuracy and completeness of costs incurred to date.
◦Evaluated the reasonableness of management’s estimates of total cost and profit at completion for selected contracts by:
•Evaluating management’s ability to achieve the estimates of total cost and profit by performing corroborating inquiries with the Company’s project managers, and comparing the estimates to management’s work plans, engineering specifications, and supplier contracts.
•Comparing management’s estimates to supporting documents for those estimates, when applicable.
•Evaluating management’s ability to accurately estimate total costs and profits at completion by comparing actual costs and profits to management’s historical estimates for performance obligations that have been fulfilled.
•Evaluating trends on changes in estimates and obtaining evidence on timing and amounts supporting these changes in estimates.
◦Tested the mathematical accuracy of management’s calculation of revenue recognized.
•We evaluated selected quarter over quarter changes in contract profit estimates by obtaining explanations from the Company’s project managers regarding timing and amount and corroborating these inquiries by reading documents such as management work plans, customer communications, invoices and supplier communications.
•Performed procedures on recorded back charges to evaluate the reasonableness of the estimated recovery by 1) evaluating the information supporting management’s judgment as to the cause and contractual rights and 2) testing the accuracy of the identification of the underlying costs.
Goodwill – Refer to Notes 1 and 6 to the consolidated financial statements
Critical Audit Matter Description
The Company’s evaluation of goodwill for impairment involves the comparison of the fair value of the Civil reporting unit (which corresponds with the Company’s Civil operating segment and is the only reporting unit with a goodwill balance) to its carrying value. The Company determines the fair value of the reporting unit using the income approach and market approach. The determination of fair value using the income-based approach requires management to make significant estimates and assumptions related to projected operating margins, cash flows generated from existing work and new awards, and projected investments in working capital (collectively, the “forecasted financial information”), as well as the discount rates and weighted-
F-3

Table of Contents
average cost of capital (“WACC”). The determination of fair value using the market-based approach requires management to make significant assumptions, including those related to the forecasted financial information referred to above and the industry-comparable multiples to be used for each of its reporting units. The Company determines the valuation of the reporting unit based upon a weighted-average value of the income approach and market approach. In evaluating the results there are various quantitative and qualitative factors that need to be considered and could involve subjective judgment.
We identified goodwill as a critical audit matter because small changes to valuation assumptions, specifically the forecasted financial information, discount rates, WACC, and industry-comparable multiples, could have a significant impact on the reporting unit concluded value for the annual goodwill impairment test. Auditing these assumptions involved extensive audit effort, including the need to involve our fair value specialists, due to the complexity of these assumptions and a high degree of auditor judgment when performing audit procedures and evaluating the results of those procedures.
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to the forecasted financial information, discount rates, WACC, and industry-comparable multiples for the reporting unit included the following, among others:
•We tested the effectiveness of controls within the goodwill impairment test process, including those over the forecasted financial information, the selection of the industry-comparable multiples, WACC, and discount rates, as well as the identification of interim impairment indicators.
•We evaluated management’s historical ability to accurately forecast by comparing actual results to management’s previous forecasted financial information for the same period.
•We evaluated the reasonableness of management’s forecasted financial information by comparing the forecasted financial information to (1) historical results, (2) internal communications to management and the Board of Directors, (3) reporting units’ backlog, and (4) forecasted financial information included in the Company’s press releases, as well as analyst and industry reports of the Company and companies in its peer group.
•We considered the impact of circumstances affecting the industry including, but not limited to, changes in the legal and business environment.
•With the assistance of our fair value specialists, we evaluated the WACC and discount rates, including testing the underlying source information and the mathematical accuracy of the calculations, and developing a range of independent estimates of the discount rates and comparing those to the WACC and discount rates selected by management.
•With the assistance of our fair value specialists, we evaluated the industry-comparable multiples, including testing the underlying source information and mathematical accuracy of the calculations, the acceptability of the selected companies within the Company’s peer group, and comparing the multiples selected by management to companies in the engineering and construction industry.
•We evaluated the selected industry-comparable multiples by comparing to those used in the prior year, those used in the Civil reporting unit and to current facts and circumstances affecting the Civil reporting unit.
/s/ Deloitte & Touche LLP
Los Angeles, CA
February 24, 2021
We have served as the Company's auditor since 2002.
F-4

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS

| Year Ended December 31,
(in thousands, except per common share amounts) | 2020 | 2019 | 2018
REVENUE | $ | 5,318,763 |  | $ | 4,450,832 |  | $ | 4,454,662 |
COST OF OPERATIONS | (4,832,610) |  | (4,209,060) |  | (4,000,209) |
GROSS PROFIT | 486,153 |  | 241,772 |  | 454,453 |
General and administrative expenses | (223,809) |  | (226,916) |  | (262,577) |
Goodwill impairment | — |  | (379,863) |  | — |
INCOME (LOSS) FROM CONSTRUCTION OPERATIONS | 262,344 |  | (365,007) |  | 191,876 |
Other income (expense) | (11,853) |  | 6,667 |  | 4,256 |
Interest expense | (76,212) |  | (67,494) |  | (63,519) |
INCOME (LOSS) BEFORE INCOME TAXES | 174,279 |  | (425,834) |  | 132,613 |
Income tax (expense) benefit | (21,942) |  | 65,609 |  | (34,832) |
NET INCOME (LOSS) | 152,337 |  | (360,225) |  | 97,781 |
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS | 43,943 |  | 27,465 |  | 14,345 |
NET INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION | $ | 108,394 |  | $ | (387,690) |  | $ | 83,436 |
BASIC EARNINGS (LOSS) PER COMMON SHARE | $ | 2.14 |  | $ | (7.72) |  | $ | 1.67 |
DILUTED EARNINGS (LOSS) PER COMMON SHARE | $ | 2.12 |  | $ | (7.72) |  | $ | 1.66 |
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING: |  |  |
BASIC | 50,656 |  | 50,220 |  | 49,952 |
DILUTED | 51,077 |  | 50,220 |  | 50,301 |

The accompanying notes are an integral part of these consolidated financial statements.
F-5

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

| Year Ended December 31,
(in thousands) | 2020 | 2019 | 2018
NET INCOME (LOSS) | $ | 152,337 |  | $ | (360,225) |  | $ | 97,781 |
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX: |  |  |
Defined benefit pension plan adjustments | (6,261) |  | 844 |  | 771 |
Foreign currency translation adjustments | 279 |  | 1,337 |  | (2,945) |
Unrealized gain (loss) in fair value of investments | 1,571 |  | 1,561 |  | (778) |
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX | (4,411) |  | 3,742 |  | (2,952) |
COMPREHENSIVE INCOME (LOSS) | 147,926 |  | (356,483) |  | 94,829 |
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS | 44,173 |  | 27,858 |  | 14,124 |
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION | $ | 103,753 |  | $ | (384,341) |  | $ | 80,705 |

The accompanying notes are an integral part of these consolidated financial statements.
F-6

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS

| As of December 31,
(in thousands, except share and per share amounts) | 2020 | 2019
ASSETS
CURRENT ASSETS: |  |
Cash and cash equivalents ($105,735 and $103,850 related to VIEs) | $ | 374,289 |  | $ | 193,685 |
Restricted cash | 77,563 |  | 8,416 |
Restricted investments | 78,912 |  | 70,974 |
Accounts receivable ($86,012 and $91,090 related to VIEs) | 1,415,063 |  | 1,354,519 |
Retainage receivable ($122,335 and $89,132 related to VIEs) | 648,441 |  | 562,375 |
Costs and estimated earnings in excess of billings ($39,846 and $22,764 related to VIEs) | 1,236,734 |  | 1,123,544 |
Other current assets ($51,746 and $58,128 related to VIEs) | 249,455 |  | 197,473 |
Total current assets | 4,080,457 |  | 3,510,986 |
PROPERTY AND EQUIPMENT: |  |
Land | 44,167 |  | 39,047 |
Building and improvements | 116,422 |  | 115,041 |
Construction equipment | 570,675 |  | 560,547 |
Other equipment | 192,247 |  | 183,197 |
| 923,511 |  | 897,832 |
Less accumulated depreciation | (434,294) |  | (388,147) |
Total property and equipment, net ($12,840 and $49,919 related to VIEs) | 489,217 |  | 509,685 |
GOODWILL | 205,143 |  | 205,143 |
INTANGIBLE ASSETS, NET | 123,115 |  | 155,270 |
OTHER ASSETS | 147,685 |  | 104,693 |
TOTAL ASSETS | $ | 5,045,617 |  | $ | 4,485,777 |
LIABILITIES AND EQUITY
CURRENT LIABILITIES: |  |
Current maturities of long-term debt, net of unamortized discount and debt issuance costs totaling $2,040 and $0 | $ | 100,188 |  | $ | 124,054 |
Accounts payable ($116,461 and $93,848 related to VIEs) | 794,611 |  | 682,699 |
Retainage payable ($26,439 and $13,967 related to VIEs) | 315,135 |  | 252,181 |
Billings in excess of costs and estimated earnings ($362,427 and $422,847 related to VIEs) | 839,222 |  | 844,389 |
Accrued expenses and other current liabilities ($9,595 and $25,402 related to VIEs) | 215,207 |  | 206,533 |
Total current liabilities | 2,264,363 |  | 2,109,856 |
LONG-TERM DEBT, less current maturities, net of unamortized discount and debt issuance costs totaling $20,209 and $23,343 | 925,277 |  | 710,422 |
DEFERRED INCOME TAXES | 82,966 |  | 35,686 |
OTHER LONG-TERM LIABILITIES | 230,066 |  | 199,288 |
TOTAL LIABILITIES | 3,502,672 |  | 3,055,252 |
COMMITMENTS AND CONTINGENCIES (Note 8) |  |
EQUITY |  |
Stockholders' equity: |  |
Preferred stock – authorized 1,000,000 shares ($1 par value), none issued | — |  | — |
Common stock – authorized 112,500,000 and 75,000,000 shares ($1 par value), issued and outstanding 50,827,205 and 50,278,816 shares | 50,827 |  | 50,279 |
Additional paid-in capital | 1,127,385 |  | 1,117,972 |
Retained earnings | 422,385 |  | 313,991 |
Accumulated other comprehensive loss | (46,741) |  | (42,100) |
Total stockholders' equity | 1,553,856 |  | 1,440,142 |
Noncontrolling interests | (10,911) |  | (9,617) |
TOTAL EQUITY | 1,542,945 |  | 1,430,525 |
TOTAL LIABILITIES AND EQUITY | $ | 5,045,617 |  | $ | 4,485,777 |

The accompanying notes are an integral part of these consolidated financial statements.
F-7

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS

| Year Ended December 31,
(in thousands) | 2020 | 2019 | 2018
Cash Flows from Operating Activities: |  |  |
Net income (loss) | $ | 152,337 |  | $ | (360,225) |  | $ | 97,781 |
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Goodwill impairment | — |  | 379,863 |  | — |
Depreciation | 74,879 |  | 58,818 |  | 43,724 |
Amortization of intangible assets | 32,155 |  | 6,226 |  | 3,543 |
Share-based compensation expense | 11,833 |  | 19,143 |  | 22,782 |
Change in debt discounts and deferred debt issuance costs | 20,153 |  | 13,207 |  | 12,072 |
Deferred income taxes | 48,253 |  | (71,609) |  | (449) |
Gain on remeasurement of investment in joint venture | — |  | (37,792) |  | — |
(Gain) loss on sale of property and equipment | (1,673) |  | (4,688) |  | 402 |
Changes in other components of working capital, net of balances acquired | (169,976) |  | 131,257 |  | (156,844) |
Other long-term liabilities | 4,352 |  | 1,863 |  | (2,007) |
Other, net | 459 |  | 467 |  | 398 |
NET CASH PROVIDED BY OPERATING ACTIVITIES | 172,772 |  | 136,530 |  | 21,402 |
Cash Flows from Investing Activities: |  |  |
Business acquisition, cash balance acquired net of cash paid | — |  | 6,607 |  | — |
Acquisition of property and equipment | (54,781) |  | (84,196) |  | (77,069) |
Proceeds from sale of property and equipment | 14,550 |  | 12,581 |  | 6,387 |
Investments in securities | (31,331) |  | (35,167) |  | (20,848) |
Proceeds from maturities and sales of investments in securities | 25,204 |  | 24,120 |  | 21,322 |
NET CASH USED IN INVESTING ACTIVITIES | (46,358) |  | (76,055) |  | (70,208) |
Cash Flows from Financing Activities: |  |  |
Proceeds from debt | 1,301,282 |  | 931,594 |  | 1,753,160 |
Repayment of debt | (1,119,887) |  | (870,277) |  | (1,738,314) |
Business acquisition related payment | — |  | — |  | (15,951) |
Cash payments related to share-based compensation | (1,397) |  | (2,363) |  | (2,671) |
Distributions paid to noncontrolling interests | (48,467) |  | (46,500) |  | (29,000) |
Contributions from noncontrolling interests | 3,000 |  | 9,813 |  | 3,797 |
Debt issuance, extinguishment and modification costs | (11,194) |  | (504) |  | — |
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES | 123,337 |  | 21,763 |  | (28,979) |
Net increase (decrease) in cash, cash equivalents and restricted cash | 249,751 |  | 82,238 |  | (77,785) |
Cash, cash equivalents and restricted cash at beginning of year | 202,101 |  | 119,863 |  | 197,648 |
Cash, cash equivalents and restricted cash at end of year | $ | 451,852 |  | $ | 202,101 |  | $ | 119,863 |

The accompanying notes are an integral part of these consolidated financial statements.
F-8

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(in thousands) | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Noncontrolling Interests | Total
Balance - December 31, 2017 | $ | 49,781 |  | $ | 1,084,205 |  | $ | 622,007 |  | $ | (42,718) |  | $ | (8,495) |  | $ | 1,704,780 |
Cumulative effect of accounting change | — |  | — |  | (3,762) |  | — |  | (1,714) |  | (5,476) |
Net income | — |  | — |  | 83,436 |  | — |  | 14,345 |  | 97,781 |
Other comprehensive loss | — |  | — |  | — |  | (2,731) |  | (221) |  | (2,952) |
Share-based compensation | — |  | 21,544 |  | — |  | — |  | — |  | 21,544 |
Issuance of common stock, net | 245 |  | (2,830) |  | — |  | — |  | — |  | (2,585) |
Contributions from noncontrolling interests | — |  | — |  | — |  | — |  | 3,797 |  | 3,797 |
Distributions to noncontrolling interests | — |  | — |  | — |  | — |  | (29,000) |  | (29,000) |
Balance - December 31, 2018 | $ | 50,026 |  | $ | 1,102,919 |  | $ | 701,681 |  | $ | (45,449) |  | $ | (21,288) |  | $ | 1,787,889 |
Net income (loss) | — |  | — |  | (387,690) |  | — |  | 27,465 |  | (360,225) |
Other comprehensive income | — |  | — |  | — |  | 3,349 |  | 393 |  | 3,742 |
Share-based compensation | — |  | 17,571 |  | — |  | — |  | — |  | 17,571 |
Issuance of common stock, net | 253 |  | (2,518) |  | — |  | — |  | — |  | (2,265) |
Contributions from noncontrolling interests | — |  | — |  | — |  | — |  | 9,813 |  | 9,813 |
Distributions to noncontrolling interests | — |  | — |  | — |  | — |  | (46,500) |  | (46,500) |
Recognized fair value of noncontrolling interest in joint venture upon consolidation | — |  | — |  | — |  | — |  | 20,500 |  | 20,500 |
Balance - December 31, 2019 | $ | 50,279 |  | $ | 1,117,972 |  | $ | 313,991 |  | $ | (42,100) |  | $ | (9,617) |  | $ | 1,430,525 |
Net income | — |  | — |  | 108,394 |  | — |  | 43,943 |  | 152,337 |
Other comprehensive income (loss) | — |  | — |  | — |  | (4,641) |  | 230 |  | (4,411) |
Share-based compensation | — |  | 11,928 |  | — |  | — |  | — |  | 11,928 |
Reacquisition of equity component from convertible note repurchase, net of taxes | — |  | (764) |  | — |  | — |  | — |  | (764) |
Issuance of common stock, net | 548 |  | (1,751) |  | — |  | — |  | — |  | (1,203) |
Contributions from noncontrolling interests | — |  | — |  | — |  | — |  | 3,000 |  | 3,000 |
Distributions to noncontrolling interests | — |  | — |  | — |  | — |  | (48,467) |  | (48,467) |
Balance - December 31, 2020 | $ | 50,827 |  | $ | 1,127,385 |  | $ | 422,385 |  | $ | (46,741) |  | $ | (10,911) |  | $ | 1,542,945 |

The accompanying notes are an integral part of these consolidated financial statements.
F-9

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
1.Summary of Significant Accounting Policies
(a) Basis of Presentation
The accompanying consolidated financial statements have been prepared in compliance with generally accepted accounting principles in the United States (“GAAP”) as codified in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”). Certain amounts in the notes to the consolidated financial statements of prior years have been reclassified to conform to the current year presentation.
(b) Principles of Consolidation
The consolidated financial statements include the accounts of Tutor Perini Corporation and its wholly owned subsidiaries (the “Company”). The Company occasionally forms joint ventures with unrelated third parties for the execution of single contracts or projects. The Company assesses its joint ventures to determine if they meet the qualifications of a variable interest entity (“VIE”) in accordance with ASC 810, Consolidation (“ASC 810”). If a joint venture is a VIE and the Company is the primary beneficiary, the joint venture is fully consolidated (See Note 13). If a joint venture is not a VIE, it may be consolidated under the voting interest method if the Company holds a controlling financial interest in the joint venture. The Company is considered to hold a controlling financial interest when it is able to exercise control over the joint venture’s operating and financial decisions. For construction joint ventures that do not need to be consolidated, the Company accounts for its interest in the joint ventures using the proportionate consolidation method, whereby the Company’s proportionate share of the joint ventures’ assets, liabilities, revenue and cost of operations are included in the appropriate classifications in the Company’s consolidated financial statements. Intercompany balances and transactions have been eliminated.
(c) Use of Estimates
The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts. These estimates are based on information available through the date of the issuance of the financial statements; therefore, actual results could differ from those estimates.
(d) Revenues
Revenue Recognition
The Company derives revenue from long-term construction contracts with public and private customers primarily in the United States and its territories and in certain other international locations. The Company’s construction contracts are generally each accounted for as a single unit of account (i.e., as a single performance obligation).
Throughout the execution of construction contracts, the Company and its affiliated entities recognize revenue with the continuous transfer of control to the customer. The customer typically controls the asset under construction by either contractual termination clauses or by the Company’s rights to payment for work already performed on the asset under construction that does not have an alternative use for the Company.
Because control transfers over time, revenue is recognized to the extent of progress towards completion of the performance obligations. The selection of the method to measure progress towards completion requires judgment and is based on the nature of the products or services provided. The Company generally uses the cost-to-cost method for its contracts, which measures progress towards completion for each performance obligation based on the ratio of costs incurred to date to the total estimated costs at completion for the respective performance obligation. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer. Revenue, including estimated fees or profits, is recorded proportionately as costs are incurred. Cost of operations includes labor, materials, subcontractor costs, and other direct and indirect costs, including depreciation and amortization.
Due to the nature of the work required to be performed on many of the Company’s performance obligations, estimating total revenue and cost at completion is complex, subject to many variables and requires significant judgment. Assumptions as to the occurrence of future events and the likelihood and amount of variable consideration, including the impact of change orders, claims, contract disputes and the achievement of contractual performance criteria, and award or other incentive fees are made during the contract performance period. The Company estimates variable consideration at the most likely amount it expects to receive. The Company includes estimated amounts in the transaction price to the extent it is probable that a significant reversal
F-10

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of anticipated performance and all information (historical, current and forecasted) that is reasonably available to management. Back charges to suppliers or subcontractors are recognized as a reduction of cost when it is determined that recovery of such cost is probable and the amounts can be reliably estimated. Disputed back charges are recognized when the same requirements described above for variable consideration have been satisfied.
Changes in Estimates on Construction Contracts
The Company’s estimates of contract revenue and cost are highly detailed and many factors change during a contract performance period that result in a change to contract profitability. These factors include, but are not limited to, differing site conditions; availability of skilled contract labor; performance of major material suppliers and subcontractors; on-going subcontractor negotiations and buyout provisions; unusual weather conditions; changes in the timing of scheduled work; change orders; accuracy of the original bid estimate; changes in estimated labor productivity and costs based on experience to date; achievement of incentive-based income targets; and the expected, or actual, resolution terms for claims. The factors that cause changes in estimates vary depending on the maturation of the project within its lifecycle. For example, in the ramp-up phase, these factors typically consist of revisions in anticipated project costs and during the peak and closeout phases, these factors include the impact of change orders and claims, as well as additional revisions in remaining anticipated project costs. Generally, if the contract is at an early stage of completion, the current period impact is smaller than if the same change in estimate is made to the contract at a later stage of completion. Management evaluates changes in estimates on a contract-by-contract basis and discloses significant changes, if material, in the Notes to Consolidated Financial Statements. The cumulative catch-up method is used to account for revisions in estimates.
(e) Depreciation of Property and Equipment and Amortization of Long-Lived Intangible Assets
Property and equipment and long-lived intangible assets are generally depreciated or amortized on a straight-line basis over their estimated useful lives ranging from three to forty years.
(f) Recoverability of Long-Lived Assets
Long-lived assets are reviewed for impairment whenever circumstances indicate that the future cash flows generated by the assets might be less than the assets’ net carrying value. In such circumstances, an impairment loss will be recognized by the amount the assets’ net carrying value exceeds their fair value.
(g) Recoverability of Goodwill
The Company tests goodwill for impairment annually as of October 1 for each reporting unit and between annual tests if events occur or circumstances change which suggest that goodwill should be reevaluated. Such events or circumstances include significant changes in legal factors and business climate, recent losses at a reporting unit, and industry trends, among other factors. The Civil, Building and Specialty Contractors segments each represent a reporting unit, and the Civil reporting unit carried the remaining goodwill balance at December 31, 2020 as a result of the $379.9 million impairment loss recognized in 2019. The Company performs its annual quantitative impairment assessment during the fourth quarter of each year using a weighted average of an income and a market approach. These approaches utilize various valuation assumptions, and small changes to the assumptions could have a significant impact on the concluded fair value. The income approach is based on estimated present value of future cash flows for each reporting unit carrying a goodwill balance. The market approach is based on assumptions about how market data relates to each reporting unit carrying a goodwill balance. The weighting of these two approaches is based on their individual correlation to the economics of each reporting unit carrying a goodwill balance. The annual quantitative assessment performed in the fourth quarter of 2020 resulted in an estimated fair value that exceeded the net book value of the Civil reporting unit; therefore, no impairment charge was necessary.
(h) Recoverability of Non-Amortizable Trade Names
Certain trade names have an estimated indefinite life and are not amortized to earnings, but instead are reviewed for impairment annually, or more often if events occur or circumstances change which suggest that the non-amortizable trade names should be reevaluated. The Company performs its annual quantitative impairment assessment during the fourth quarter of each year using an income approach (relief from royalty method). The assessment performed in the fourth quarter of 2020 resulted in an estimated fair value for the non-amortizable trade names that exceeded their respective net book values; therefore, no impairment charge was necessary.
F-11

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
(i) Income Taxes
Deferred income tax assets and liabilities are recognized for the effects of temporary differences between the financial statement carrying amounts and the income tax basis of assets and liabilities using tax rates expected to be in effect when such differences reverse. Income tax positions must meet a more-likely-than-not threshold to be recognized. The Company recognizes interest and penalties related to uncertain tax positions as a component of the income tax provision.
(j) Earnings Per Common Share (EPS)
Basic EPS and diluted EPS are calculated by dividing net income attributable to Tutor Perini Corporation by the following: for basic EPS, the weighted-average number of common shares outstanding during the period; and for diluted EPS, the sum of the weighted-average number of both outstanding common shares and potentially dilutive securities, which for the Company can include restricted stock units, unexercised stock options and the Convertible Notes, as defined in Note 7. In accordance with ASC 260, Earnings Per Share, the settlement of the principal amount of the Convertible Notes has no impact on diluted EPS because the Company has the intent and ability to settle the principal amount in cash. See Note 7 for further discussion of the Convertible Notes. The Company calculates the effect of the potentially dilutive restricted stock units and stock options using the treasury stock method.

| Year Ended December 31,
(in thousands, except per common share data) | 2020 | 2019 | 2018
Net income (loss) attributable to Tutor Perini Corporation | $ | 108,394 |  | $ | (387,690) |  | $ | 83,436 |
Weighted-average common shares outstanding, basic | 50,656 |  | 50,220 |  | 49,952 |
Effect of dilutive restricted stock units and stock options | 421 |  | — |  | 349 |
Weighted-average common shares outstanding, diluted | 51,077 |  | 50,220 |  | 50,301 |
Net income (loss) attributable to Tutor Perini Corporation per common share: |  |  |
Basic | $ | 2.14 |  | $ | (7.72) |  | $ | 1.67 |
Diluted | $ | 2.12 |  | $ | (7.72) |  | $ | 1.66 |
Anti-dilutive securities not included above | 1,862 |  | 3,640 |  | 2,670 |

For the year ended December 31, 2019, all outstanding restricted stock units and stock options were excluded from the calculation of weighted-average diluted shares outstanding due to the net loss for the period.
(k) Cash, Cash Equivalents and Restricted Cash
The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets to the amounts shown in the Consolidated Statements of Cash Flows:

| As of December 31,
(in thousands) | 2020 | 2019
Cash and cash equivalents available for general corporate purposes | $ | 210,841 |  | $ | 43,760 |
Joint venture cash and cash equivalents | 163,448 |  | 149,925 |
Cash and cash equivalents | 374,289 |  | 193,685 |
Restricted cash | 77,563 |  | 8,416 |
Total cash, cash equivalents and restricted cash | $ | 451,852 |  | $ | 202,101 |

Cash equivalents include short-term, highly liquid investments with maturities of three months or less when acquired. Cash and cash equivalents consist of amounts available for the Company’s general purposes, the Company’s proportionate share of cash held by the Company’s unconsolidated joint ventures and 100% of amounts held by the Company’s consolidated joint ventures. In both cases, cash held by joint ventures is available only for joint venture-related uses, including future distributions to joint venture partners.
As of December 31, 2020, restricted cash consists primarily of $69.9 million held to repay the outstanding principal balance of Convertible Notes described in more detail in Note 7. Restricted cash also includes amounts held as collateral to secure insurance-related contingent obligations, such as insurance claim deductibles, in lieu of letters of credit.
F-12

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
(l) Restricted Investments
The Company has restricted investments primarily held as collateral to secure insurance-related contingent obligations, such as insurance claim deductibles, in lieu of letters of credit. Restricted investments are primarily comprised of investments in U.S. government agency securities and corporate debt securities that are rated A 3 or better.
(m) Share-Based Compensation
The Company’s long-term incentive plans allow the Company to grant share-based compensation awards in a variety of forms, including restricted and unrestricted stock units and stock options. Restricted stock units and stock options generally vest subject to service and/or performance requirements, with related compensation expense equal to the fair value of the award on the date of grant and recognized on a straight-line basis over the requisite period. The Company may grant awards that require liability classification and are remeasured at fair value at the end of each reporting period with the change in fair value recognized as compensation cost.
For share-based awards that have a service requirement, the Company accounts for forfeitures upon occurrence, rather than estimating the probability of forfeiture at the date of grant. Accordingly, the Company recognizes the full grant-date fair value of these awards on a straight-line basis throughout the requisite service period, reversing any expense if, and only if, there is a forfeiture.
For share-based awards that have a performance-based vesting requirement, the Company evaluates the probability of achieving the performance criteria throughout the performance period, and will adjust share-based compensation expense if it estimates that the achievement of the performance criteria is not probable. Certain performance-based awards contain market condition components and are valued on the date of grant using a Monte Carlo simulation model. The fair value of such awards is expensed ratably over the performance period and is not adjusted for actual achievement.
(n) Insurance Liabilities
The Company typically utilizes third-party insurance coverage subject to varying deductible levels with aggregate caps on losses retained. The Company assumes the risk for the amount of the deductible portion of the losses and liabilities primarily associated with workers’ compensation and general liability coverage. In addition, on certain projects, the Company assumes the risk for the amount of the deductible portion of losses that arise from any subcontractor defaults. Losses are accrued based upon the Company’s estimates of the aggregate liability for claims incurred using historical experience and certain actuarial assumptions followed in the insurance industry. The estimate of insurance liability within the deductible limits includes an estimate of incurred but not reported claims based on data compiled from historical experience.
(o) Other Comprehensive Income (Loss)
ASC 220, Comprehensive Income, establishes standards for reporting comprehensive income and its components in the consolidated financial statements. The Company reports the change in pension benefit plan assets/liabilities, cumulative foreign currency translation, and change in fair value of investments as components of accumulated other comprehensive income (loss) (“AOCI”).
F-13

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The components of other comprehensive income (loss) and the related tax effects for the years ended December 31, 2020, 2019 and 2018 were as follows:

| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
(in thousands) | Before-Tax Amount | Tax (Expense) Benefit | Net-of-Tax Amount |  | Before-Tax Amount | Tax (Expense) Benefit | Net-of-Tax Amount |  | Before-Tax Amount | Tax (Expense) Benefit | Net-of-Tax Amount
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Defined benefit pension plan adjustments | $ | (8,700) |  | $ | 2,439 |  | $ | (6,261) |  |  | $ | 1,180 |  | $ | (336) |  | $ | 844 |  |  | $ | 1,079 |  | $ | (308) |  | $ | 771 |
Foreign currency translation adjustment | 178 |  | 101 |  | 279 |  |  | 1,867 |  | (530) |  | 1,337 |  |  | (4,067) |  | 1,122 |  | (2,945) |
Unrealized gain (loss) in fair value of investments | 2,015 |  | (444) |  | 1,571 |  |  | 1,982 |  | (421) |  | 1,561 |  |  | (1,005) |  | 227 |  | (778) |
Total other comprehensive income (loss) | $ | (6,507) |  | $ | 2,096 |  | $ | (4,411) |  |  | $ | 5,029 |  | $ | (1,287) |  | $ | 3,742 |  |  | $ | (3,993) |  | $ | 1,041 |  | $ | (2,952) |
Less: Other comprehensive income (loss) attributable to noncontrolling interests(a) | 230 |  | — |  | 230 |  |  | 393 |  | — |  | 393 |  |  | (221) |  | — |  | (221) |
Total other comprehensive income (loss) attributable to Tutor Perini Corporation | $ | (6,737) |  | $ | 2,096 |  | $ | (4,641) |  |  | $ | 4,636 |  | $ | (1,287) |  | $ | 3,349 |  |  | $ | (3,772) |  | $ | 1,041 |  | $ | (2,731) |

________________________________________________________________________________________
(a)The only component of other comprehensive income (loss) attributable to noncontrolling interests is foreign currency translation.
The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation during the years ended December 31, 2020, 2019 and 2018 were as follows:

(in thousands) | Defined Benefit Pension Plan | Foreign Currency Translation | Unrealized Gain (Loss) in Fair Value of Investments | Accumulated Other Comprehensive Income (Loss)
Attributable to Tutor Perini Corporation: |  |  |  |
Balance as of December 31, 2017 | $ | (39,441) |  | $ | (3,591) |  | $ | 314 |  | $ | (42,718) |
Other comprehensive loss before reclassifications | (695) |  | (2,724) |  | (835) |  | (4,254) |
Amounts reclassified from AOCI | 1,466 |  | — |  | 57 |  | 1,523 |
Balance as of December 31, 2018 | $ | (38,670) |  | $ | (6,315) |  | $ | (464) |  | $ | (45,449) |
Other comprehensive income (loss) before reclassifications | (539) |  | 944 |  | 1,621 |  | 2,026 |
Amounts reclassified from AOCI | 1,383 |  | — |  | (60) |  | 1,323 |
Balance as of December 31, 2019 | $ | (37,826) |  | $ | (5,371) |  | $ | 1,097 |  | $ | (42,100) |
Other comprehensive income (loss) before reclassifications | (7,993) |  | 49 |  | 1,820 |  | (6,124) |
Amounts reclassified from AOCI | 1,732 |  | — |  | (249) |  | 1,483 |
Balance as of December 31, 2020 | $ | (44,087) |  | $ | (5,322) |  | $ | 2,668 |  | $ | (46,741) |

The significant items reclassified out of AOCI and the corresponding location and impact on the Consolidated Statements of Operations during the years ended December 31, 2020, 2019 and 2018 are as follows:

| Location in Consolidated | Year Ended December 31,
(in thousands) | Statements of Operations | 2020 | 2019 | 2018
Component of AOCI: |  |  |  |
Defined benefit pension plan adjustments | Other income (expense) | $ | 2,407 |  | $ | 1,933 |  | $ | 2,052 |
Income tax benefit | Income tax expense (benefit) | (675) |  | (550) |  | (586) |
Net of tax |  | $ | 1,732 |  | $ | 1,383 |  | $ | 1,466 |
Unrealized (gain) loss in fair value of investment adjustments | Other income (expense) | $ | (315) |  | $ | (76) |  | $ | 72 |
Income tax expense (benefit) | Income tax expense (benefit) | 66 |  | 16 |  | (15) |
Net of tax |  | $ | (249) |  | $ | (60) |  | $ | 57 |

F-14

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
(p) Recent Accounting Pronouncements
In March 2020, the FASB issued Accounting Standards Update (“ASU”) 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”). The amendments in ASU 2020-04 provide temporary optional expedients and exceptions for applying GAAP to contract modifications, hedging relationships and other transactions to ease the potential accounting and financial reporting burden associated with transitioning away from reference rates that are expected to be discontinued, including the London Interbank Offered Rate (“LIBOR”). ASU 2020-04 is effective as of March 12, 2020 through December 31, 2022. The adoption of the new standard has not had and is not expected to have a material impact on the Company’s financial position, results of operations or cash flows.
In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments, and issued subsequent amendments to the initial guidance within ASU 2019-04 and ASU 2019-05 (collectively, “ASU 2016-13”). The amendments in ASU 2016-13 replace the incurred loss impairment methodology with the current expected credit loss model, which requires consideration of a broader range of reasonable and supportable information to estimate credit losses. The Company adopted this ASU effective January 1, 2020. The adoption of ASU 2016-13 did not have a material impact on the Company’s financial position, results of operations or cash flows.
In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), as amended and supplemented by subsequent ASUs (collectively, “ASC 842”). The Company adopted this ASU effective January 1, 2019 using the optional transition method. Under this method, financial results reported in periods prior to 2019 are unchanged. As such, the 2018 comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods.
The following recent accounting pronouncements require implementation in future periods.
In August 2020, the FASB issued ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”). The amendments in ASU 2020-06 simplify accounting for convertible instruments by removing major separation models required under current GAAP. Consequently, more convertible debt instruments will be reported as a single liability instrument with no separate accounting for embedded conversion features. ASU 2020-06 removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception. Also, ASU 2020-06 requires the application of the if-converted method for calculating diluted EPS and the treasury stock method will no longer be available. ASU 2020-06 is effective for interim and annual reporting periods beginning after December 15, 2021, with early adoption permitted. The Company does not expect to early adopt the new standard and does not expect it to have an impact on the Company's financial position, results of operations or cash flows.
In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (“ASU 2019-12”), modifying ASC 740, Income Taxes (“ASC 740”). The amendments in ASU 2019-12, among other things, remove certain exceptions to the general principles in ASC 740 and seek more consistent application by clarifying and amending the existing guidance. ASU 2019-12 is effective for interim and annual reporting periods beginning after December 15, 2020. The Company is currently evaluating the new standard, which is not expected to have a material impact on the Company’s financial position, results of operations or cash flows.
F-15

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
2. Consolidated Statements of Cash Flows
Below are the changes in other components of working capital, net of balances related to incremental interest acquired in a Civil segment joint venture during 2019 (see Note 12), as shown in the Consolidated Statements of Cash Flows, the supplemental disclosure of cash paid for interest and income taxes and the supplemental disclosure of non-cash investing activities:

| Year Ended December 31,
(in thousands) | 2020 | 2019 | 2018
(Increase) Decrease in: |  |  |
Accounts receivable | $ | (104,901) |  | $ | (81,983) |  | $ | 3,899 |
Retainage receivable | (85,769) |  | (78,520) |  | 56,754 |
Costs and estimated earnings in excess of billings | (113,190) |  | 18,751 |  | (209,537) |
Other current assets | (49,468) |  | (76,146) |  | 15,398 |
(Decrease) Increase in: |  |  |
Accounts payable | 111,912 |  | 53,999 |  | (78,243) |
Retainage payable | 62,954 |  | 35,013 |  | (49,864) |
Billings in excess of costs and estimated earnings | (5,168) |  | 245,292 |  | 76,703 |
Accrued expenses and other current liabilities | 13,654 |  | 14,851 |  | 28,046 |
Changes in other components of working capital | $ | (169,976) |  | $ | 131,257 |  | $ | (156,844) |
Cash paid during the year for: |  |  |
Interest | $ | 57,038 |  | $ | 56,137 |  | $ | 51,063 |
Income taxes | $ | 11,204 |  | $ | 43,374 |  | $ | 13,652 |
Supplemental disclosure of non-cash investing activities: |  |  |
Real property acquired in settlement of a receivable | $ | 11,660 |  | $ | — |  | $ | — |

F-16

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
3. Revenue
Disaggregation of Revenue
The following tables disaggregate revenue by end market, customer type and contract type, which the Company believes best depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors for the years ended December 31, 2020, 2019 and 2018.

| Year Ended December 31,
(in thousands) | 2020 | 2019 | 2018
Civil segment revenue by end market: |  |  |
Mass transit (includes certain transportation and tunneling projects) | $ | 1,367,412 |  | $ | 992,755 |  | $ | 702,614 |
Bridges | 306,161 |  | 334,117 |  | 431,202 |
Military defense facilities | 146,969 |  | 59,082 |  | 26,225 |
Highways | 122,254 |  | 86,747 |  | 202,423 |
Water | 101,705 |  | 33,370 |  | 10,195 |
Other | 155,398 |  | 273,281 |  | 213,434 |
Total Civil segment revenue | $ | 2,199,899 |  | $ | 1,779,352 |  | $ | 1,586,093 |

| Year Ended December 31,
(in thousands) | 2020 | 2019 | 2018
Building segment revenue by end market: |  |  |
Commercial and industrial facilities | $ | 580,297 |  | $ | 459,806 |  | $ | 374,312 |
Hospitality and gaming | 474,329 |  | 297,700 |  | 301,871 |
Municipal and government | 287,337 |  | 254,736 |  | 261,496 |
Mass transit (includes transportation projects) | 218,930 |  | 201,400 |  | 67,588 |
Education facilities | 173,472 |  | 143,382 |  | 145,147 |
Health care facilities | 117,968 |  | 239,299 |  | 428,819 |
Mixed use | 59,391 |  | 31,685 |  | 150,549 |
Other | 72,917 |  | 114,032 |  | 131,917 |
Total Building segment revenue | $ | 1,984,641 |  | $ | 1,742,040 |  | $ | 1,861,699 |

| Year Ended December 31,
(in thousands) | 2020 | 2019 | 2018
Specialty Contractors segment revenue by end market: |  |  |
Mass transit (includes certain transportation and tunneling projects) | $ | 592,430 |  | $ | 419,402 |  | $ | 296,092 |
Commercial and industrial facilities | 152,868 |  | 186,819 |  | 189,632 |
Multi-unit residential | 139,924 |  | 83,903 |  | 81,023 |
Water | 73,769 |  | 37,403 |  | 22,390 |
Mixed use | 47,022 |  | 64,302 |  | 163,308 |
Education facilities | 44,762 |  | 70,229 |  | 99,214 |
Other | 83,448 |  | 67,382 |  | 155,211 |
Total Specialty Contractors segment revenue | $ | 1,134,223 |  | $ | 929,440 |  | $ | 1,006,870 |

F-17

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

| Year Ended December 31, 2020
(in thousands) | Civil | Building | Specialty Contractors | Total
Revenue by customer type: |  |  |  |
State and local agencies | $ | 1,875,653 |  | $ | 534,449 |  | $ | 533,768 |  | $ | 2,943,870 |
Federal agencies | 175,933 |  | 143,327 |  | 75,067 |  | 394,327 |
Private owners | 148,313 |  | 1,306,865 |  | 525,388 |  | 1,980,566 |
Total revenue | $ | 2,199,899 |  | $ | 1,984,641 |  | $ | 1,134,223 |  | $ | 5,318,763 |

| Year Ended December 31, 2019
(in thousands) | Civil | Building | Specialty Contractors | Total
Revenue by customer type: |  |  |  |
State and local agencies | $ | 1,401,001 |  | $ | 573,049 |  | $ | 496,195 |  | $ | 2,470,245 |
Federal agencies | 116,869 |  | 153,467 |  | 11,326 |  | 281,662 |
Private owners | 261,482 |  | 1,015,524 |  | 421,919 |  | 1,698,925 |
Total revenue | $ | 1,779,352 |  | $ | 1,742,040 |  | $ | 929,440 |  | $ | 4,450,832 |

| Year Ended December 31, 2018
(in thousands) | Civil | Building | Specialty Contractors | Total
Revenue by customer type: |  |  |  |
State and local agencies | $ | 1,294,630 |  | $ | 617,133 |  | $ | 406,782 |  | $ | 2,318,545 |
Federal agencies | 95,567 |  | 201,745 |  | 53,335 |  | 350,647 |
Private owners | 195,896 |  | 1,042,821 |  | 546,753 |  | 1,785,470 |
Total revenue | $ | 1,586,093 |  | $ | 1,861,699 |  | $ | 1,006,870 |  | $ | 4,454,662 |

State and local agencies. The Company’s state and local government customers include state transportation departments, metropolitan authorities, cities, municipal agencies, school districts and public universities. Services provided to state and local customers are primarily pursuant to contracts awarded through competitive bidding processes. Construction services for state and local government customers have included mass-transit systems, tunnels, bridges, highways, judicial and correctional facilities, schools and dormitories, health care facilities, convention centers, parking structures and other municipal buildings. The vast majority of the Company’s civil contracting and building construction services are provided in locations throughout the United States and its territories.
Federal agencies. The Company’s federal government customers include the U.S. State Department, the U.S. Navy, the U.S. Army Corps of Engineers, the U.S. Air Force and the National Park Service. Services provided to federal agencies are typically pursuant to competitively bid contracts for specific or multi-year assignments that involve new construction or infrastructure repairs or improvements. A portion of revenue from federal agencies is derived from projects in overseas locations.
Private owners. The Company’s private owners (i.e., customers) include real estate developers, health care companies, technology companies, hospitality and gaming resort owners, Native American sovereign nations, public corporations and private universities. Services are provided to private customers through negotiated contract arrangements, as well as through competitive bids.
Most federal, state and local government contracts contain provisions that permit the termination of contracts, in whole or in part, for the convenience of government customers, among other reasons.
F-18

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

| Year Ended December 31, 2020
(in thousands) | Civil | Building | Specialty Contractors | Total
Revenue by contract type: |  |  |  |
Fixed price | $ | 1,792,765 |  | $ | 508,655 |  | $ | 1,010,973 |  | $ | 3,312,393 |
Guaranteed maximum price | 1,829 |  | 1,136,782 |  | 15,417 |  | 1,154,028 |
Unit price | 392,548 |  | 867 |  | 83,257 |  | 476,672 |
Cost plus fee and other | 12,757 |  | 338,337 |  | 24,576 |  | 375,670 |
Total revenue | $ | 2,199,899 |  | $ | 1,984,641 |  | $ | 1,134,223 |  | $ | 5,318,763 |

| Year Ended December 31, 2019
(in thousands) | Civil | Building | Specialty Contractors | Total
Revenue by contract type: |  |  |  |
Fixed price | $ | 1,315,195 |  | $ | 561,831 |  | $ | 769,410 |  | $ | 2,646,436 |
Guaranteed maximum price | 6,951 |  | 752,110 |  | 21,291 |  | 780,352 |
Unit price | 436,015 |  | 12,063 |  | 91,803 |  | 539,881 |
Cost plus fee and other | 21,191 |  | 416,036 |  | 46,936 |  | 484,163 |
Total revenue | $ | 1,779,352 |  | $ | 1,742,040 |  | $ | 929,440 |  | $ | 4,450,832 |

| Year Ended December 31, 2018
(in thousands) | Civil | Building | Specialty Contractors | Total
Revenue by contract type: |  |  |  |
Fixed price | $ | 1,054,473 |  | $ | 377,538 |  | $ | 857,742 |  | $ | 2,289,753 |
Guaranteed maximum price | 15,709 |  | 1,040,093 |  | 62,132 |  | 1,117,934 |
Unit price | 469,305 |  | 32,468 |  | 32,562 |  | 534,335 |
Cost plus fee and other | 46,606 |  | 411,600 |  | 54,434 |  | 512,640 |
Total revenue | $ | 1,586,093 |  | $ | 1,861,699 |  | $ | 1,006,870 |  | $ | 4,454,662 |

Fixed price. Fixed price or lump sum contracts are most commonly used for projects in the Civil and Specialty Contractors segments and generally commit the Company to provide all of the resources required to complete a project for a fixed sum. Usually, fixed price contracts transfer more risk to the Company, but offer the opportunity for greater profits. Billings on fixed price contracts are typically based on estimated progress against predetermined contractual milestones.
Guaranteed maximum price (“GMP”). GMP contracts provide for a cost plus fee arrangement up to a maximum agreed upon price. These contracts place risks on the Company for amounts in excess of the GMP, but may permit an opportunity for greater profits than under cost plus fee contracts through sharing agreements with the owner on any cost savings that may be realized. Services provided by our Building segment to various private customers are often performed under GMP contracts. Billings on GMP contracts typically occur on a monthly basis and are based on actual costs incurred plus a negotiated margin.
Unit price. Unit price contracts are most prevalent for projects in the Civil and Specialty Contractors segments and generally commit the Company to provide an estimated or undetermined number of units or components that comprise a project at a fixed price per unit. This approach shifts the risk of estimating the quantity of units required to the project owner, but the risk of increased cost per unit is borne by the Company, unless otherwise allowed for in the contract. Billings on unit price contracts typically occur on a monthly basis and are based on actual quantity of work performed or completed during the billing period.
Cost plus fee. Cost plus fee contracts are used for many projects in the Building and Specialty Contractors segments. Cost plus fee contracts include cost plus fixed fee contracts and cost plus award fee contracts. Cost plus fixed fee contracts provide for reimbursement of approved project costs plus a fixed fee. Cost plus award fee contracts provide for reimbursement of the project costs plus a base fee, as well as an incentive fee based on cost and/or schedule performance. Cost plus fee contracts serve to minimize the Company’s financial risk, but may also limit profits. Billings on cost plus fee contracts typically occur on a monthly basis based on actual costs incurred plus a negotiated margin.
F-19

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Changes in Contract Estimates that Impact Revenue
Changes to the total estimated contract revenue or cost for a given project, either due to unexpected events or revisions to management’s initial estimates, are recognized in the period in which they are determined. Revenue was negatively impacted during the year ended December 31, 2020 related to performance obligations satisfied (or partially satisfied) in prior periods by a net $77.0 million for various projects. Revenue was negatively impacted during the year ended December 31, 2019 related to performance obligations satisfied (or partially satisfied) in prior periods by a net $177.5 million for various projects, including a $123.9 million revenue impact that resulted from the charge related to the Alaskan Way Viaduct (SR 99) Matter discussed in Note 8. Revenue was positively impacted during the year ended December 31, 2018 related to performance obligations satisfied (or partially satisfied) in prior periods by a net $19.4 million for various projects.
Remaining Performance Obligations
Remaining performance obligations represent the transaction price of firm orders for which work has not been performed and exclude unexercised contract options. As of December 31, 2020, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.8 billion, $1.5 billion and $1.8 billion for the Civil, Building and Specialty Contractors segments, respectively. As of December 31, 2019, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $5.2 billion, $2.2 billion and $2.2 billion for the Civil, Building and Specialty Contractors segments, respectively. The Company typically recognizes revenue on Civil segment projects over a period of three to five years, whereas for projects in the Building and Specialty Contractors segments, the Company typically recognizes revenue over a period of one to three years.
4. Contract Assets and Liabilities
The Company classifies contract assets and liabilities that may be settled beyond one year from the balance sheet date as current, consistent with the length of time of the Company’s project operating cycle.
Contract assets include amounts due under retainage provisions, costs and estimated earnings in excess of billings and capitalized contract costs. The amounts as included on the Consolidated Balance Sheets consisted of the following:

| As of December 31,
(in thousands) | 2020 |  | 2019
Retainage receivable | $ | 648,441 |  |  | $ | 562,375 |
Costs and estimated earnings in excess of billings: |  |  |
Claims | 752,783 |  |  | 705,993 |
Unapproved change orders | 415,489 |  |  | 362,264 |
Other unbilled costs and profits | 68,462 |  |  | 55,287 |
Total costs and estimated earnings in excess of billings | 1,236,734 |  |  | 1,123,544 |
Capitalized contract costs | 74,452 |  |  | 80,294 |
Total contract assets | $ | 1,959,627 |  |  | $ | 1,766,213 |

Retainage receivable represents amounts invoiced to customers where payments have been partially withheld pending the completion of certain milestones, satisfaction of other contractual conditions or the completion of the project. Retainage agreements vary from project to project and balances could be outstanding for several months or years depending on a number of circumstances, such as contract-specific terms, project performance and other variables that may arise as the Company makes progress toward completion. As of December 31, 2020, the amount of retainage receivable estimated by management to be collected beyond one year is approximately 38% of the balance.
Costs and estimated earnings in excess of billings represent the excess of contract costs and profits (or contract revenue) over the amount of contract billings to date and are classified as a current asset. Costs and estimated earnings in excess of billings result when either: (1) the appropriate contract revenue amount has been recognized over time in accordance with ASC 606, Revenue from Contracts with Customers (“ASC 606”), but a portion of the revenue recorded cannot be billed currently due to the billing terms defined in the contract, or (2) costs are incurred related to certain claims and unapproved change orders. Claims occur when there is a dispute regarding both a change in the scope of work and the price associated with that change. Unapproved change orders occur when a change in the scope of work results in additional work being performed before the parties have agreed on the corresponding change in the contract price. The Company routinely estimates recovery related to claims and unapproved change orders as a form of variable consideration at the most likely amount it expects to receive and to
F-20

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Claims and unapproved change orders are billable upon the agreement and resolution between the contractual parties and after the execution of contractual amendments. Increases in claims and unapproved change orders typically result from costs being incurred against existing or new positions; decreases normally result from resolutions and subsequent billings. As discussed in Note 8, the resolution of these claims and unapproved change orders may require litigation or other forms of dispute resolution proceedings. Other unbilled costs and profits are billable in accordance with the billing terms of each of the existing contractual arrangements and, as such, the timing of contract billing cycles can cause fluctuations in the balance of unbilled costs and profits. Ultimate resolution of other unbilled costs and profits typically involves incremental progress toward contractual requirements or milestones. The amount of costs and estimated earnings in excess of billings as of December 31, 2020 estimated by management to be collected beyond one year is approximately $756.2 million.
Capitalized contract costs primarily represent costs to fulfill a contract that (1) directly relate to an existing or anticipated contract, (2) generate or enhance resources that will be used in satisfying performance obligations in the future and (3) are expected to be recovered through the contract, and are included in other current assets. Capitalized contract costs are generally expensed to the associated contract over the period of anticipated use on the project. During the years ended December 31, 2020, 2019 and 2018, $46.7 million, $33.8 million and $16.3 million, respectively, of previously capitalized contract costs were amortized and recognized as expense on the related contracts.
Contract liabilities include amounts owed under retainage provisions and billings in excess of costs and estimated earnings. The amount as reported on the Consolidated Balance Sheets consisted of the following:

| As of December 31,
(in thousands) | 2020 |  | 2019
Retainage payable | $ | 315,135 |  |  | $ | 252,181 |
Billings in excess of costs and estimated earnings | 839,222 |  |  | 844,389 |
Total contract liabilities | $ | 1,154,357 |  |  | $ | 1,096,570 |

Retainage payable represents amounts invoiced to the Company by subcontractors where payments have been partially withheld pending the completion of certain milestones, other contractual conditions or upon the completion of the project. Generally, retainage payable is not remitted to subcontractors until the associated retainage receivable from customers is collected. As of December 31, 2020, the amount of retainage payable estimated by management to be remitted beyond one year is approximately 38% of the balance.
Billings in excess of costs and estimated earnings represent the excess of contract billings to date over the amount of contract costs and profits (or contract revenue) recognized to date. The balance may fluctuate depending on the timing of contract billings and the recognition of contract revenue. Revenue recognized during the years ended December 31, 2020, 2019 and 2018 and included in the opening billings in excess of costs and estimated earnings balances for each period totaled $690.7 million, $479.6 million and $382.7 million, respectively.
5. Income Taxes
Income (loss) before taxes is summarized as follows:

| Year Ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
United States operations | $ | 138,426 |  |  | $ | (456,403) |  |  | $ | 106,222 |
Foreign and U.S. territory operations | 35,853 |  |  | 30,569 |  |  | 26,391 |
Total | $ | 174,279 |  |  | $ | (425,834) |  |  | $ | 132,613 |

F-21

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The income tax expense (benefit) is as follows:

| Year Ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Current (benefit) expense: |  |  |  |  |
Federal | $ | (36,159) |  |  | $ | (2,884) |  |  | $ | 21,055 |
State | (1,282) |  |  | 3,585 |  |  | 8,676 |
Foreign and U.S. territories | 11,130 |  |  | 5,299 |  |  | 5,550 |
Total current (benefit) expense: | (26,311) |  |  | 6,000 |  |  | 35,281 |
Deferred expense (benefit): |  |  |  |  |
Federal | 38,667 |  |  | (43,579) |  |  | (1,773) |
State | 10,608 |  |  | (27,566) |  |  | 1,278 |
Foreign and U.S. territories | (1,022) |  |  | (464) |  |  | 46 |
Total deferred expense (benefit): | 48,253 |  |  | (71,609) |  |  | (449) |
Total expense (benefit): | $ | 21,942 |  |  | $ | (65,609) |  |  | $ | 34,832 |

The following table is a reconciliation of the Company’s income tax provision at the statutory federal tax rate to the Company’s effective tax rate:

| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
(dollars in thousands) | Amount |  | Rate |  | Amount |  | Rate |  | Amount |  | Rate
Federal income tax expense (benefit) at statutory tax rate | $ | 36,599 |  |  | 21.0 | % |  | $ | (89,425) |  |  | 21.0 | % |  | $ | 27,849 |  |  | 21.0 | %
State income taxes, net of federal tax benefit | 8,518 |  |  | 4.9 |  |  | (18,442) |  |  | 4.3 |  |  | 9,011 |  |  | 6.8 |
Stock based compensation | 3,185 |  |  | 1.8 |  |  | 1,706 |  |  | (0.4) |  |  | — |  |  | — |
Impact of federal tax law changes | (14,476) |  |  | (8.3) |  |  | — |  |  | — |  |  | 211 |  |  | 0.2 |
Officers' compensation | 2,486 |  |  | 1.4 |  |  | 2,938 |  |  | (0.7) |  |  | 3,078 |  |  | 2.3 |
Goodwill impairment | — |  |  | — |  |  | 43,990 |  |  | (10.3) |  |  | — |  |  | — |
Noncontrolling interests | (9,799) |  |  | (5.6) |  |  | (6,064) |  |  | 1.4 |  |  | (3,232) |  |  | (2.4) |
Federal R&D credits | (3,007) |  |  | (1.7) |  |  | (3,998) |  |  | 0.9 |  |  | (2,658) |  |  | (2.0) |
Reversal of reserve for uncertain tax positions due to statute expirations | (489) |  |  | (0.3) |  |  | (773) |  |  | 0.2 |  |  | (1,958) |  |  | (1.5) |
Foreign tax rate differences | 1,491 |  |  | 0.9 |  |  | 4,940 |  |  | (1.2) |  |  | (19) |  |  | — |
Other | (2,566) |  |  | (1.5) |  |  | (481) |  |  | 0.2 |  |  | 2,550 |  |  | 1.9 |
Income tax expense (benefit) | $ | 21,942 |  |  | 12.6 | % |  | $ | (65,609) |  |  | 15.4 | % |  | $ | 34,832 |  |  | 26.3 | %

The Company's provision for income taxes and effective tax rate for the year ended December 31, 2020 was significantly impacted by a change in tax law. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was signed into law. A major provision of the CARES Act allows net operating losses from the 2018, 2019 and 2020 tax years to be carried back up to five years. As a result, for the year ended December 31, 2020, the Company was able to recognize tax benefits substantially in excess of the current federal statutory rate of 21% due to the effects of carrying back its net operating loss arising in 2019 to tax years in which the federal statutory rate was 35%.
The Company’s provision for income taxes and effective tax rate for the year ended December 31, 2019 was significantly impacted by the goodwill impairment charge discussed in Note 6. Of the total goodwill impairment charge of $379.9 million, approximately $209.5 million pertained to goodwill that was not tax deductible and yielded permanent differences between book income and taxable income. For the year ended December 31, 2019, the Company recognized U.S. federal and state tax benefits totaling $49.4 million as a result of the impairment charge.
F-22

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following is a summary of the significant components of the deferred tax assets and liabilities:

| As of December 31,
(in thousands) | 2020 |  | 2019
Deferred tax assets: |  |  |
Timing of expense recognition | $ | 24,470 |  |  | $ | 44,761 |
Net operating losses | 19,968 |  |  | 23,711 |
Goodwill | 19,315 |  |  | 26,658 |
Other, net | 10,155 |  |  | 17,098 |
Deferred tax assets | 73,908 |  |  | 112,228 |
Valuation allowance | — |  |  | (2,212) |
Net deferred tax assets | 73,908 |  |  | 110,016 |
Deferred tax liabilities: |  |  |
Intangible assets, due primarily to purchase accounting | (15,212) |  |  | (15,309) |
Fixed assets | (76,567) |  |  | (75,461) |
Construction contract accounting | (9,769) |  |  | (13,464) |
Joint ventures | (41,669) |  |  | (24,331) |
Other | (11,962) |  |  | (16,567) |
Deferred tax liabilities | (155,179) |  |  | (145,132) |
Net deferred tax liabilities | $ | (81,271) |  |  | $ | (35,116) |

As of December 31, 2020, the Company had net operating loss carryforwards for income tax purposes in various states totaling $196.5 million with expiration dates ranging from 2022 to 2039, and no net operating loss carryforwards for federal income tax purposes. As of December 31, 2019, the Company had federal and various state net operating loss carryforwards for income tax purposes of $29.3 million and $184.8 million, respectively. As of December 31, 2020, the Company had federal and state credit carryforwards of approximately $1.4 million and $2.0 million, respectively. As of December 31, 2019, the Company had federal and state credit carryforwards of approximately $6.0 million and $1.2 million, respectively.
The net deferred tax liabilities are presented in the Consolidated Balance Sheets as follows:

| As of December 31,
(in thousands) | 2020 |  | 2019
Deferred tax assets | $ | 1,695 |  |  | $ | 570 |
Deferred tax liabilities | (82,966) |  |  | (35,686) |
Net deferred tax liabilities | $ | (81,271) |  |  | $ | (35,116) |

The Company’s policy is to record interest and penalties on unrecognized tax benefits as an element of income tax expense. The cumulative amounts related to interest and penalties are added to the total unrecognized tax liabilities on the balance sheet. The total amount of gross unrecognized tax benefits as of December 31, 2020 that, if recognized, would affect the effective tax rate is $8.7 million. The Company does not expect any significant release of unrecognized tax benefits within the next twelve months.
F-23

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The Company accounts for its uncertain tax positions in accordance with GAAP. The following is a reconciliation of the beginning and ending amounts of these unrecognized tax benefits for the three years ended December 31, 2020:

| As of December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Beginning balance | $ | 5,682 |  |  | $ | 4,998 |  |  | $ | 6,495 |
Change in tax positions of prior years | 2,286 |  |  | 351 |  |  | (302) |
Change in tax positions of current year | 1,202 |  |  | 1,106 |  |  | 763 |
Reduction in tax positions for statute expirations | (489) |  |  | (773) |  |  | (1,958) |
Ending Balance | $ | 8,681 |  |  | $ | 5,682 |  |  | $ | 4,998 |

The Company conducts business internationally and, as a result, one or more of its subsidiaries files income tax returns in U.S. federal, U.S. state and certain foreign jurisdictions. Accordingly, in the normal course of business, the Company is subject to examination by taxing authorities principally throughout the United States, Guam and Canada. The Company's open tax years for a U.S. federal income tax audit are for fiscal years 2017 and later, although there is currently no audit being conducted by the Internal Revenue Service. The Company has various years open to audit in a number of state and local jurisdictions and is currently under audit by certain state taxing authorities.
6. Goodwill and Intangible Assets
Goodwill
The following table presents the changes in the carrying amount of goodwill since its inception through December 31, 2020:

(in thousands) | Civil |  | Building |  | Specialty Contractors |  | Total
Gross goodwill as of December 31, 2018 | $ | 492,074 |  |  | $ | 424,724 |  |  | $ | 156,193 |  |  | $ | 1,072,991 |
Accumulated impairment as of December 31, 2018 | (76,716) |  |  | (411,269) |  |  | — |  |  | (487,985) |
Goodwill as of December 31, 2018 | 415,358 |  |  | 13,455 |  |  | 156,193 |  |  | 585,006 |
2019 impairment | (210,215) |  |  | (13,455) |  |  | (156,193) |  |  | (379,863) |
Goodwill as of December 31, 2019 | 205,143 |  |  | — |  |  | — |  |  | 205,143 |
Current year activity | — |  |  | — |  |  | — |  |  | — |
Goodwill as of December 31, 2020(a) | $ | 205,143 |  |  | $ | — |  |  | $ | — |  |  | $ | 205,143 |

_____________________________________________________________________________________________________________
(a)As of December 31, 2020, accumulated impairment was $867.8 million.
The Company performed its annual impairment test in the fourth quarter of 2020 and concluded goodwill was not impaired. In addition, the Company determined that no triggering events occurred and no circumstances changed since the date of our annual impairment test that would more likely than not reduce the fair value of the Civil reporting unit below its carrying amount.
During the year ended December 31, 2020, the novel coronavirus (“COVID-19”) pandemic, as well as the actions taken to contain and mitigate its public health effects, caused disruptions in domestic and global economies and financial markets. The vast majority of the Company’s projects, especially in its Civil reporting unit, have been designated as essential business, which allows the Company to continue its work on those projects. However, due to the fluidity of the pandemic, uncertainties as to its scope and duration, and ongoing changes in the way that governments, businesses and individuals are affected, the pandemic's future impact on the Company’s business, financial condition or performance remains uncertain. Among other things, governments could prohibit the continuation of certain projects that to date have been designated as “essential” or could impose health, safety and other operational requirements on such projects that could result in delays or suspensions of such projects. In addition, employees and contractors working on such projects could be unable or unwilling to continue working on them, perhaps for extended periods, because they may be unable or unwilling to be immunized against COVID-19, or for other reasons. The COVID-19 pandemic also could negatively affect the ability of counterparties or joint venture partners to make required payments on a timely basis or at all.
The Company considered the above factors in its annual impairment test in the fourth quarter of 2020. The Company will continue to monitor events and circumstances for changes that indicate the Civil reporting unit goodwill would need to be reevaluated for impairment during future interim periods prior to the annual impairment test. These future events and
F-24

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
circumstances include, but are not limited to, changes in the overall financial performance of the Civil reporting unit, impacts to our business as a result of the COVID-19 pandemic, as well as other quantitative and qualitative factors which could indicate potential triggering events for possible impairment.
Second Quarter of 2019 Goodwill Impairment
The net change in the carrying amount of goodwill for the year ended December 31, 2019 was primarily due to a goodwill impairment charge of $379.9 million recorded in the second quarter of 2019. In connection with the preparation of its quarterly financial statements during the second quarter of 2019, the Company assessed the changes in circumstances that occurred during the quarter to determine whether it was more likely than not that the fair values of any of its reporting units were below their carrying amounts. While there was no single determinative event or factor, potential triggering events identified in the accounting guidance (ASC 350, Intangibles – Goodwill and Other) developed during the second quarter of 2019, which led the Company to conclude that, when considering the events and factors in totality, it was more likely than not that the fair values of each of its reporting units were below their carrying amounts. The triggering factors included:
•The Company faced a declining stock price and observed a sustained decrease subsequent to the filing of the Company’s first quarter Form 10-Q on May 8, 2019, in both absolute terms and relative to its peers. Consistent with the average stock prices of companies in its peer group, the Company’s stock price had been trending lower over several prior periods; however, during the second quarter of 2019, the Company’s stock price dropped to a 52-week low while the average stock price of companies in its peer group increased. The Company believes that delays experienced in resolving certain claims and unapproved change orders, which when combined with the increased working capital needs and significant negative operating cash flows in the first quarter of 2019, has contributed significantly to the sustained decrease in the Company’s stock price;
•The Company experienced significant negative operating cash flows from each of its reporting units in the first quarter of 2019, and that trend continued at the beginning of the second quarter; and
•The Company’s debt rating was downgraded by a major credit rating agency on May 17, 2019.
As the Company determined that it was more likely than not that the fair values of its reporting units were below their carrying amounts, the Company performed an interim impairment test as of June 1, 2019 (the “Interim Test”) and, as described below, recognized a non-cash impairment loss totaling $379.9 million.
The decrease in the Company’s stock price reduced its total market capitalization and increased the implied control premium to a level beyond observable market-comparable data. As a result, when performing the Interim Test, the Company increased the discount rates and the projected investments in working capital compared to the assumptions used in the previous October 1, 2018 test, which extended the timing of certain expected future cash flows in the calculation of fair value under the income-based approach. The Company believes these changes were consistent with market participant inputs as reflected in the decrease in the Company’s market valuation at that time.
Consistent with the previous October 1, 2018 test, the Company utilized a weighted average of (1) an income approach and (2) a market approach to determine the fair value of the Company and each of its reporting units for the Interim Test. The income approach was based on estimated present value of future cash flows for each reporting unit. The market approach was based on assumptions about how market data relates to each reporting unit. The weighting of these two approaches was based on their individual correlation to the economics of each reporting unit as impacted by factors such as the availability of comparable market data for each reporting unit.
Assessing impairment inherently involves management judgments as to the assumptions used to calculate fair value of the reporting units and the impact of market conditions on those assumptions. The key inputs that the Company uses in its assumptions to estimate the fair value of its reporting units under the income-based approach are as follows:
•Weighted-average cost of capital (“WACC”), the risk-adjusted rate used to discount the projected cash flows;
•Cash flows generated from existing work and new awards; and
•Projected operating margins.
Expected future after-tax operating cash flows of each reporting unit are discounted to a present value using a risk-adjusted discount rate. Estimates of future cash flows require management to make significant assumptions concerning future operating performance including cash flows generated from existing work and new awards, projected operating margins, variations in the amount and timing of cash flows and the probability of achieving the estimated cash flows, as well as future economic conditions, which may differ from actual future cash flows. The discount rate, which is intended to reflect the risks inherent in future cash flow projections, used in estimating the present value of future cash flows, is based on estimates of the WACC of
F-25

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
market participants relative to the reporting units. Financial and credit market volatility can directly impact certain inputs and assumptions used to develop the WACC.
To develop the cash flows generated from new awards and future operating margins, the Company tracks known prospects of significance for each of its reporting units and considers the estimated timing of when the work is expected to be bid, started and completed. The Company also gives consideration to its relationships with the prospective owners; the pool of competitors that are capable of performing large, complex work; business strategy; and the Company’s history of success in winning new work in each reporting unit. With regard to operating margins, the Company gives consideration to its historical reporting unit operating margins in the end markets that the prospective work opportunities are most significant, expected margins from existing work, current market trends in recent new work procurement, and business strategy.
The Company also estimated the fair value of its reporting units under a market-based approach by applying industry-comparable multiples of revenues and operating earnings to its reporting units’ revenues and operating earnings. The conditions and prospects of companies in the engineering and construction industry depend on common factors such as overall demand for services.
The Company believes that the discount rates, timing of cash flows and other inputs and assumptions used in the Interim Test were consistent with those that a market participant would use based on the events described above which occurred during the second quarter of 2019 and were reflective of the market assessment of the fair value of its reporting units at that time. In addition, the Company believes that its estimates and assumptions about future revenues and margin projections in the Interim Test were reasonable and consistent with the estimates and assumptions used in the annual goodwill impairment test as of October 1, 2018. As an additional step to corroborate the Interim Test results, the Company compared its implied control premium with those of recent comparable market transactions and concluded that the implied control premium was within the range of control premiums observed in prior industry-specific M&A transactions.
The assumption changes described above were relatively larger in the Specialty Contractors reporting unit than in the Civil or Building reporting units, as Specialty Contractors had not met recent market expectations at the time of the Interim Test.
Intangible Assets
Intangible assets consist of the following:

| As of December 31, 2020 |  | Weighted-Average Amortization Period
(in thousands) | Cost | Accumulated Amortization | Accumulated Impairment Charge | Carrying Value |
Trade names (non-amortizable) | $ | 117,600 |  | $ | — |  | $ | (67,190) |  | $ | 50,410 |  |  | Indefinite
Trade names (amortizable) | 74,350 |  | (23,754) |  | (23,232) |  | 27,364 |  |  | 20 years
Contractor license | 6,000 |  | — |  | (6,000) |  | — |  |  | N/A
Customer relationships | 39,800 |  | (22,103) |  | (16,645) |  | 1,052 |  |  | 12 years
Construction contract backlog | 149,290 |  | (105,001) |  | — |  | 44,289 |  |  | 3 years
Total | $ | 387,040 |  | $ | (150,858) |  | $ | (113,067) |  | $ | 123,115 |  |  |

| As of December 31, 2019 |  | Weighted-Average Amortization Period
(in thousands) | Cost | Accumulated Amortization | Accumulated Impairment Charge | Carrying Value |
Trade names (non-amortizable) | $ | 117,600 |  | $ | — |  | $ | (67,190) |  | $ | 50,410 |  |  | Indefinite
Trade names (amortizable) | 74,350 |  | (21,267) |  | (23,232) |  | 29,851 |  |  | 20 years
Contractor license | 6,000 |  | — |  | (6,000) |  | — |  |  | N/A
Customer relationships | 39,800 |  | (21,048) |  | (16,645) |  | 2,107 |  |  | 12 years
Construction contract backlog | 149,290 |  | (76,388) |  | — |  | 72,902 |  |  | 3 years
Total | $ | 387,040 |  | $ | (118,703) |  | $ | (113,067) |  | $ | 155,270 |  |  |

The Company performs its annual quantitative impairment assessment during the fourth quarter of each year for non-amortizable trade names. If the estimated fair value for the non-amortizable trade names exceeds their respective net book
F-26

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
values, no impairment charge is necessary. Other amortizable intangible assets are reviewed for impairment whenever circumstances indicate that the future cash flows generated by the assets might be less than the assets’ net carrying value. The Company had no impairment of intangible assets during the years ended December 31, 2020 or 2019.
Amortization expense related to amortizable intangible assets was $32.2 million and $6.2 million for the years ended December 31, 2020 and 2019, respectively. The increase in accumulated amortization for construction contract backlog was due to the acquisition of an additional interest in a joint venture during the fourth quarter of 2019, as discussed in Note 12. Future amortization expense related to amortizable intangible assets for the years 2021 and 2022 will be approximately $32.4 million and $17.9 million, respectively, $2.5 million for the years 2023, 2024 and 2025, and $14.9 million thereafter.
7. Financial Commitments
Long-Term Debt
Long-term debt as reported on the Consolidated Balance Sheets consisted of the following:

| As of December 31,
(in thousands) | 2020 |  | 2019
2017 Senior Notes | $ | 495,271 |  |  | $ | 494,365 |
Term Loan B | 408,458 |  |  | N/A
2020 Revolver | — |  |  | N/A
2017 Credit Facility | N/A |  | 114,000 |
Convertible Notes(a) | 67,878 |  |  | 182,292 |
Equipment financing and mortgages | 47,594 |  |  | 39,159 |
Other indebtedness | 6,264 |  |  | 4,660 |
Total debt | 1,025,465 |  |  | 834,476 |
Less: Current maturities | 100,188 |  |  | 124,054 |
Long-term debt, net | $ | 925,277 |  |  | $ | 710,422 |

_____________________________________________________________________________________________________________
(a)The Company will repurchase or retire the remaining Convertible Notes at or before their June 15, 2021 maturity using proceeds from the Term Loan B, $69.9 million of which is currently held in a restricted cash account for this purpose.
The following table reconciles the outstanding debt balances to the reported debt balances as of December 31, 2020 and 2019:

| As of December 31, 2020 |  | As of December 31, 2019
(in thousands) | Outstanding Debt | Unamortized Discounts and Issuance Costs | Debt, as reported |  | Outstanding Debt | Unamortized Discount and Issuance Costs | Debt, as reported
2017 Senior Notes | $ | 500,000 |  | $ | (4,729) |  | $ | 495,271 |  |  | $ | 500,000 |  | $ | (5,635) |  | $ | 494,365 |
Term Loan B | 423,938 |  | (15,480) |  | 408,458 |  |  | N/A | N/A | N/A
Convertible Notes | 69,918 |  | (2,040) |  | 67,878 |  |  | 200,000 |  | (17,708) |  | 182,292 |

The unamortized issuance costs related to the 2020 Revolver were $2.6 million as of December 31, 2020 and are included in other assets on the Consolidated Balance Sheets. The unamortized issuance costs related to the 2017 Credit Facility, which was terminated on August 18, 2020 (as discussed below) were $3.7 million as of December 31, 2019 and were included in other assets on the Consolidated Balance Sheets.
2020 Credit Agreement
On August 18, 2020, the Company entered into a new credit agreement (the “2020 Credit Agreement”) with BMO Harris Bank N.A., as Administrative Agent, Swing Line Lender and L/C Issuer and other lenders. The 2020 Credit Agreement provides for a $425.0 million term loan B facility (the “Term Loan B”) and a $175.0 million revolving credit facility (the “2020 Revolver”), with sublimits for the issuance of letters of credit and swing line loans up to the aggregate amounts of $75.0 million and $10.0 million, respectively. The Term Loan B will mature on August 18, 2027 and the 2020 Revolver will mature on August 18, 2025, in each case, unless any of the 2017 Senior Notes are outstanding on January 30, 2025 (which is 91 days prior
F-27

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
to the maturity of the 2017 Senior Notes), in which case, both the Term Loan B and the 2020 Revolver will mature on January 30, 2025 (subject to certain further exceptions).
The 2020 Credit Agreement permits the Company to repay any or all borrowings outstanding under the 2020 Credit Agreement at any time prior to maturity without penalty, except that the Company must pay a 1.00% premium in respect to the Term Loan B in connection with any transactions that reduce the yield applicable to the Term Loan B within the first twelve months after August 18, 2020 (subject to certain further exceptions). The 2020 Credit Agreement requires the Company to make regularly scheduled payments of principal on the Term Loan B in quarterly installments equal to 0.25% of the initial principal amount of the Term Loan B. The 2020 Credit Agreement also requires the Company to make prepayments on the Term Loan B in connection with certain asset sales, receipts of insurance proceeds, incurrences of unpermitted indebtedness and annual excess cash flow (subject to certain exceptions).
Subject to certain exceptions, at any time prior to maturity, the 2020 Credit Agreement provides the Company with the right to increase the commitments under the 2020 Revolver and/or to establish one or more term loan facilities in an aggregate amount up to (i) the greater of $173.5 million and 50% LTM EBITDA (as defined in the 2020 Credit Agreement) plus (ii) additional amounts if (A) in the case of pari passu first lien secured indebtedness, the First Lien Net Leverage Ratio (as defined in the 2020 Credit Agreement) does not exceed 1.35:1.00, (B) in the case of junior lien secured indebtedness, the Total Net Leverage Ratio (as defined in the 2020 Credit Agreement) does not exceed 3.50:1.00 and (C) in the case of unsecured indebtedness, (x) the Total Net Leverage Ratio does not exceed 3.50:1.00 or (y) the Fixed Charge Coverage Ratio (as defined in the 2020 Credit Agreement) is no less than 2.00:1.00.
Borrowings under the 2020 Credit Agreement bear interest, at the Company’s option, at a rate equal to (i) (a) LIBOR or (b) a base rate (determined by reference to the highest of (1) the administrative agent’s prime lending rate, (2) the federal funds effective rate plus 50 basis points and (3) the LIBOR rate for a one-month interest period plus 100 basis points) plus, (ii) an applicable margin. The margin applicable to the Term Loan B is between 4.50% and 4.75% for LIBOR and between 3.50% and 3.75% for base rate (which was initially 4.75% for LIBOR and 3.75% for base rate), and, in each case, is based on the Total Net Leverage Ratio. The margin applicable to the 2020 Revolver is between 4.25% and 4.75% for LIBOR and 3.25% and 3.75% for base rate (which was initially 4.75% for LIBOR and 3.75% for base rate), and, in each case, is based on the First Lien Net Leverage Ratio. In addition to paying interest on outstanding principal under the 2020 Credit Agreement, the Company will pay a commitment fee to the lenders under the 2020 Revolver in respect of the unutilized commitments thereunder. The Company will pay customary letter of credit fees. If a payment or bankruptcy event of default occurs and is continuing, the otherwise applicable margin on overdue amounts will be increased by 2% per annum. The agreement includes provisions for the replacement of LIBOR with an alternative benchmark rate in the event LIBOR is discontinued. The weighted-average annual interest rate on borrowings under the 2020 Revolver was 6.74% during the year ended December 31, 2020.
The 2020 Credit Agreement requires, with respect to the 2020 Revolver only, the Company and its restricted subsidiaries to maintain a maximum First Lien Net Leverage Ratio range of 2.75:1:00, stepping down to 2.25:1.00 beginning the quarter ending March 31, 2022. The 2020 Credit Agreement also includes certain customary representations and warranties, affirmative covenants and events of default. Subject to certain exceptions, substantially all of the Company’s existing and future material wholly-owned subsidiaries unconditionally guarantee the obligations of the Company under the 2020 Credit Agreement; additionally, subject to certain exceptions, the obligations are secured by a lien on substantially all of the assets of the Company and its subsidiaries guaranteeing these obligations.
As of December 31, 2020, the entire $175 million was available under the 2020 Revolver and the Company had not utilized the 2020 Revolver for letters of credit. The Company was in compliance with the financial covenants under the 2020 Credit Agreement for the period ended December 31, 2020.
Termination of 2017 Credit Facility
On April 20, 2017, the Company entered into a credit agreement (the “2017 Credit Facility”) with SunTrust Bank, now known as Truist Bank, as Administrative Agent, Swing Line Lender and L/C Issuer and a syndicate of other lenders. The 2017 Credit Facility provided for a $350 million revolving credit facility (the “2017 Revolver”) and a sublimit for the issuance of letters of credit and swing line loans up to the aggregate amount of $150 million and $10 million, respectively, both maturing on April 20, 2022 unless any of the Convertible Notes, as defined below, were outstanding on December 17, 2020, in which case all such borrowings would have matured on December 17, 2020 (the “spring-forward provision”).
On August 18, 2020, the Company used proceeds from the Term Loan B to repay outstanding amounts under the 2017 Credit Facility. As a result of repaying the outstanding amounts under the 2017 Credit Facility and entering into the 2020 Credit Agreement, the Company terminated the 2017 Credit Facility, including its spring-forward provision that would have accelerated the maturity of the facility to December 17, 2020.
F-28

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The weighted-average annual interest rate on borrowings under the 2017 Revolver was 3.55% during the year ended December 31, 2020. At December 31, 2019, the balance outstanding on the 2017 Revolver of $114 million was included in “Current maturities of long-term debt” on the Consolidated Balance Sheet.
Convertible Notes
On June 15, 2016, the Company issued $200 million of 2.875% Convertible Senior Notes due June 15, 2021 (the “Convertible Notes”) in a private placement offering. On August 19, 2020, the Company used proceeds from the Term Loan B to repurchase $130.1 million aggregate principal amount of the Convertible Notes for an aggregate purchase price of $132.4 million (including accrued and unpaid interest to the repurchase date). At December 31, 2020, $69.9 million ($67.9 million net of unamortized discount and debt issuance costs) of the Convertible Notes remain outstanding and are included in “Current maturities of long-term debt” on the Consolidated Balance Sheet. The Company will repurchase or retire at or before maturity the remaining Convertible Notes and repay the principal balance using proceeds from the Term Loan B, which are currently held in a restricted cash account for this purpose.
The Convertible Notes are unsecured obligations of the Company and do not contain any financial covenants or restrictions on the payments of dividends, the incurrence of indebtedness or the issuance or repurchase of securities by the Company. The Convertible Notes bear interest at a rate of 2.875% per year, payable in cash semi-annually in June and December.
To account for the Convertible Notes, the Company applied the provisions of ASC 470-20, Debt with Conversion and Other Options (“ASC 470-20”). ASC 470-20 requires issuers of certain convertible debt instruments that may be settled in cash upon conversion to separately account for the liability (debt) and equity (conversion option) components of the instrument in a manner that reflects the issuer’s nonconvertible debt borrowing rate. This is done by allocating the proceeds from issuance to the liability component based on the fair value of the debt instrument excluding the conversion feature, with the residual allocated to the equity component and classified in additional paid in capital. The $46.8 million difference between the initial principal amount of the Convertible Notes ($200.0 million) and the proceeds initially allocated to the liability component ($153.2 million) is treated as a discount on the Convertible Notes. This difference is being amortized as non-cash interest expense using the interest method, as shown below under Interest Expense. The equity component, however, is not subject to amortization nor subsequent remeasurement.
In addition, ASC 470-20 requires that the debt issuance costs associated with a convertible debt instrument be allocated between the liability and equity components in proportion to the allocation of the debt proceeds between these two components. The debt issuance costs attributable to the liability component of the Convertible Notes ($5.1 million) are also treated as a discount on the Convertible Notes and amortized as non-cash interest expense. The debt issuance costs attributable to the equity component ($1.5 million) were netted with the equity component and are not amortized.
F-29

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table presents information related to the liability and equity components of the Convertible Notes:

(in thousands) | December 31, 2020 |  | December 31, 2019
Liability component: |  |  |
Principal | $ | 69,918 |  |  | $ | 200,000 |
Conversion feature | (46,800) |  |  | (46,800) |
Allocated debt issuance costs | (5,051) |  |  | (5,051) |
Amortization and extinguishment of discount and debt issuance costs (non-cash interest expense) | 49,811 |  |  | 34,143 |
Net carrying amount | $ | 67,878 |  |  | $ | 182,292 |
Equity component: |  |  |
Conversion feature | $ | 46,800 |  |  | $ | 46,800 |
Reacquisition of conversion option from repurchase of notes, net of tax | (764) |  |  | — |
Allocated debt issuance costs | (1,543) |  |  | (1,543) |
Deferred taxes | (18,815) |  |  | (18,815) |
Net carrying amount | $ | 25,678 |  |  | $ | 26,442 |

Prior to January 15, 2021, the Convertible Notes were convertible only under certain circumstances including upon the occurrence of specified corporate events. The holders did not convert any of the Convertible Notes prior to January 15, 2021. On or after January 15, 2021 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes, in multiples of $1,000 principal amount, at the option of the holder regardless of the foregoing circumstances.
The Convertible Notes are convertible at an initial conversion rate of 33.0579 shares of the Company’s common stock per $1,000 principal amount of the Convertible Notes, which is equivalent to an initial conversion price of approximately $30.25. The conversion rate will be subject to adjustment for some events but will not be adjusted for any accrued and unpaid interest. In addition, following certain corporate events that occur prior to the maturity date, the Company is required to increase, in certain circumstances, the conversion rate for a holder who elects to convert their Convertible Notes in connection with such a corporate event including customary conversion rate adjustments in connection with a “make-whole fundamental change” described in the indenture. Upon conversion, and at the Company’s election, the Company may satisfy its conversion obligation with cash, shares of its common stock or a combination thereof. As of December 31, 2020, the conversion provisions of the Convertible Notes have not been triggered and none of the notes have been converted.
2017 Senior Notes
On April 20, 2017, the Company issued $500 million in aggregate principal amount of 6.875% Senior Notes due May 1, 2025 (the “2017 Senior Notes”) in a private placement offering. Interest on the 2017 Senior Notes is payable in arrears semi-annually in May and November of each year, beginning in November 2017.
Prior to May 1, 2020, the Company could have redeemed the 2017 Senior Notes under certain conditions described in the agreement. Since May 1, 2020, the Company may redeem the 2017 Senior Notes at specified redemption prices described in the indenture. Upon a change of control, holders of the 2017 Senior Notes may require the Company to repurchase all or part of the 2017 Senior Notes at 101% of the principal amount thereof, plus accrued and unpaid interest to the redemption date.
The 2017 Senior Notes are senior unsecured obligations of the Company and are guaranteed by substantially all of the Company’s existing and future subsidiaries that also guarantee obligations under the Company’s 2020 Credit Agreement, as defined above. In addition, the indenture for the 2017 Senior Notes provides for customary covenants, including events of default and restrictions on the payment of dividends and share repurchases.
Equipment Financing and Mortgages
The Company has certain loans entered into for the purchase of specific property, plant and equipment and secured by the assets purchased. The aggregate balance of equipment financing loans was approximately $36.9 million and $27.7 million at December 31, 2020 and 2019, respectively, with interest rates ranging from 2.74% to 3.89% with equal monthly installment
F-30

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
payments over periods up to 7 years with balloon payments of $12.4 million in 2021 and $6.3 million in 2022. The aggregate balance of mortgage loans was approximately $10.7 million and $11.5 million at December 31, 2020 and 2019, respectively, with interest rates ranging from LIBOR plus 3% to a fixed 3.50% and equal monthly installment payments over periods up to 10 years with balloon payments of $2.9 million in 2021 and $6.8 million in 2023.
The following table presents the future principal payments required under all of the Company’s debt obligations, discussed above:

Year (in thousands) |
2021 | $ | 102,228 |
2022 | 14,822 |
2023 | 14,282 |
2024 | 7,498 |
2025 | 506,156 |
Thereafter | 402,728 |
| 1,047,714 |
Less: Unamortized discount and issuance costs | 22,249 |
Total | $ | 1,025,465 |

Interest Expense
Interest expense as reported in the Consolidated Statements of Operations consisted of the following:

| For the year ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Cash interest expense: |  |  |  |  |
Interest on 2017 Senior Notes | $ | 34,375 |  |  | $ | 34,375 |  |  | $ | 34,375 |
Interest on Term Loan B | 9,028 |  |  | N/A |  | N/A
Interest on 2020 Revolver | 77 |  |  | N/A |  | N/A
Interest on 2017 Credit Facility | 5,341 |  |  | 11,990 |  |  | 8,575 |
Interest on Convertible Notes | 4,373 |  |  | 5,750 |  |  | 5,750 |
Other interest | 2,079 |  |  | 2,172 |  |  | 2,747 |
Cash portion of loss on extinguishment | 786 |  |  | — |  |  | — |
Total cash interest expense | 56,059 |  |  | 54,287 |  |  | 51,447 |
Non-cash interest expense(a): |  |  |  |  |
Amortization of discount and debt issuance costs on Convertible Notes | 8,944 |  |  | 10,811 |  |  | 9,846 |
Amortization of discount and debt issuance costs on Term Loan B | 784 |  |  | N/A |  | N/A
Amortization of debt issuance costs on 2020 Revolver | 206 |  |  | N/A |  | N/A
Amortization of debt issuance costs on 2017 Credit Facility | 1,001 |  |  | 1,552 |  |  | 1,439 |
Amortization of debt issuance costs on 2017 Senior Notes | 906 |  |  | 844 |  |  | 787 |
Non-cash portion of loss on extinguishment | 8,312 |  |  | — |  |  | — |
Total non-cash interest expense | 20,153 |  |  | 13,207 |  |  | 12,072 |
Total interest expense | $ | 76,212 |  |  | $ | 67,494 |  |  | $ | 63,519 |

_____________________________________________________________________________________________________________
(a)The combination of cash and non-cash interest expense produces effective interest rates that are higher than contractual rates. Accordingly, the effective interest rates for the 2017 Senior Notes, Term Loan B and the Convertible Notes were 7.13%, 6.49% and 9.39%, respectively, for the year ended December 31, 2020.
F-31

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
8. Commitments and Contingencies
The Company and certain of its subsidiaries are involved in litigation and other legal proceedings and forms of dispute resolution in the ordinary course of business, including but not limited to disputes over contract payment and/or performance-related issues (such as disagreements regarding delay or a change in the scope of work of a project and/or the price associated with that change) and other matters incidental to the Company’s business. In accordance with ASC 606, the Company makes assessments of these types of matters on a routine basis and, to the extent permitted by ASC 606, estimates and records recovery related to these matters as a form of variable consideration at the most likely amount the Company expects to receive, as discussed further in Note 1(d) and Note 4. In addition, the Company is contingently liable for litigation, performance guarantees and other commitments arising in the ordinary course of business, which are accounted for in accordance with ASC 450, Contingencies. Management reviews these matters regularly and updates or revises its estimates as warranted by subsequent information and developments. These assessments require judgments concerning matters that are inherently uncertain, such as litigation developments and outcomes, the anticipated outcome of negotiations and the estimated cost of resolving disputes. Consequently, these assessments are estimates, and actual amounts may vary from such estimates. In addition, because such matters are typically resolved over long periods of time, the Company’s assets and liabilities may change over time should the circumstances dictate. The description of the legal proceedings listed below include management’s assessment of those proceedings. Management believes that, based on current information and discussions with the Company’s legal counsel, the ultimate resolution of other matters is not expected to have a material effect on the Company’s consolidated financial position, results of operations or cash flows.
A description of the material pending legal proceedings, other than ordinary routine litigation incidental to the business is as follows:
Five Star Electric Matter
In the third quarter of 2015, Five Star Electric Corp. (“Five Star”), a wholly owned subsidiary of the Company that was acquired in 2011, entered into a tolling agreement (which has since expired) related to an ongoing investigation being conducted by the United States Attorney’s Office for the Eastern District of New York (“USAO EDNY”). Five Star has been cooperating with the USAO EDNY since late June 2014, when it was first made aware of the investigation, and has provided information requested by the government related to its use of certain minority-owned, women-owned, small and disadvantaged business enterprises and certain of Five Star’s employee compensation, benefit and tax practices.
As of December 31, 2020, the Company cannot predict the ultimate outcome of the investigation and cannot reasonably estimate the potential loss or range of loss that Five Star or the Company may incur or the impact of the results of the investigation on Five Star or the Company.
Alaskan Way Viaduct (SR 99) Matter
In January 2011, Seattle Tunnel Partners (“STP”), a joint venture between Dragados USA, Inc. and the Company, entered into a design-build contract with the Washington State Department of Transportation (“WSDOT”) for the construction of a large-diameter bored tunnel in downtown Seattle, King County, Washington to replace the Alaskan Way Viaduct, also known as State Route 99. The Company has a 45% interest in STP.
The construction of the large-diameter bored tunnel required the use of a tunnel boring machine (“TBM”). In December 2013, the TBM struck a steel pipe, installed by WSDOT as a well casing for an exploratory well. The TBM was significantly damaged and was required to be repaired. STP has asserted that the steel pipe casing was a differing site condition that WSDOT failed to properly disclose. The Disputes Review Board mandated by the contract to hear disputes issued a decision finding the steel casing was a Type I (material) differing site condition. WSDOT did not accept that finding.
The TBM was insured under a Builder’s Risk Insurance Policy (the “Policy”) with Great Lakes Reinsurance (UK) PLC and a consortium of other insurers (the “Insurers”). STP submitted the claims to the Insurers and requested interim payments under the Policy. The Insurers refused to pay and denied coverage. In June 2015, STP filed a lawsuit in the King County Superior Court, State of Washington seeking declaratory relief concerning contract interpretation, as well as damages as a result of the Insurers’ breach of their obligations under the terms of the Policy. STP is also asserting extra-contractual and statutory claims against the Insurers. WSDOT is deemed a plaintiff since WSDOT is an insured under the Policy and had filed its own claim for damages. Hitachi Zosen (“Hitachi”), the manufacturer of the TBM, joined the case as a plaintiff for costs incurred to repair the damages to the TBM.
F-32

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
In September 2018, rulings received on pre-trial motions effectively limited potential recovery under the Policy for STP, WSDOT and Hitachi. However, on December 19, 2018, the Court of Appeal granted the Company’s request for a discretionary appeal of those rulings. The appeal is expected to be heard in early 2021. STP submitted damages to the Insurers in the King County lawsuit in the amount of $532 million. STP also sought these damages from WSDOT related to the pipe-strike by the TBM in a related lawsuit in Thurston County (see following paragraph).
In March 2016, WSDOT filed a complaint against STP in Thurston County Superior Court alleging breach of contract, seeking $57.2 million in delay-related damages and seeking declaratory relief concerning contract interpretation. STP filed its answer to WSDOT’s complaint and filed a counterclaim against WSDOT and Hitachi, as the TBM designer, seeking damages of $667 million. On October 3, 2019, STP and Hitachi entered into a settlement agreement which released and dismissed the claims that STP and Hitachi had against each other. The jury trial between STP and WSDOT commenced on October 7, 2019 and concluded on December 13, 2019, with a jury verdict in favor of WSDOT awarding them $57.2 million in damages. Judgment was entered on January 10, 2020, and a notice of appeal was filed by STP on January 17, 2020. The appeal is expected to be heard in late 2021.
The Company recorded the impact of the jury verdict during the fourth quarter of 2019, resulting in a pre-tax charge of $166.8 million. The charge includes a pre-tax accrual of $25.7 million (which is the Company’s 45% proportionate share of the $57.2 million in damages awarded by the jury to WSDOT). Payment of damages will only be made if the adverse verdict is upheld on appeal, as the payment is secured by a bond for the course of the appeal. Other than the possible future payment in cash of $25.7 million in damages, the charge was for non-cash write-downs primarily related to the costs and estimated earnings in excess of billings and receivables that the Company previously recorded to reflect its expected recovery in this case.
With respect to STP’s direct and indirect claims against the Insurers, management has included in receivables an estimate of the total anticipated recovery concluded to be probable.
George Washington Bridge Bus Station Matter
In August 2013, Tutor Perini Building Corp. (“TPBC”) entered into a contract with the George Washington Bridge Bus Station Development Venture, LLC (the “Developer”) to renovate the George Washington Bridge Bus Station, a mixed-use facility owned by the Port Authority of New York and New Jersey (the “Port Authority”) that serves as a transit facility and retail space. The $100 million project experienced significant design errors and associated delays, resulting in damages to TPBC and its subcontractors, including WDF and Five Star, wholly owned subsidiaries of the Company. The project reached substantial completion on May 16, 2017.
On February 26, 2015, the Developer filed a demand for arbitration, subsequently amended, seeking $30 million in alleged damages and declaratory relief that TPBC’s requests for additional compensation are invalid due to lack of notice. TPBC denied the Developer’s claims and filed a counterclaim in March 2018. TPBC seeks in excess of $113 million in the arbitration, which includes unpaid contract balance claims, the return of $29 million retained by the Developer in alleged damages, as well as extra work claims, pass-through claims and delay claims.
Hearings on the merits commenced on September 24, 2018 before the arbitration panel. On June 4, 2019, the arbitration panel, as confirmed by the U.S. District Court in the Southern District of New York, issued a writ of attachment for $23 million of the $29 million discussed above. On October 7, 2019, the Developer filed for bankruptcy protection in the Southern District of New York under Chapter 11 of the Bankruptcy Code. The filing for bankruptcy stayed the pending arbitration proceedings. TPBC appeared in the bankruptcy proceedings on October 8, 2019 and filed a Proof of Claim in the amount of $113 million on December 13, 2019.
On June 5, 2020, the Developer, secured lenders and the Port Authority announced that they had reached a settlement of their disputes. As part of the settlement, the Port Authority waived the enforcement of its right to seek a “cure” pursuant to its lease agreement with the Developer which requires construction costs be paid prior to any sale of the leasehold, the sole asset in the Developer’s bankruptcy estate to be distributed in this bankruptcy. On July 14, 2020, the bankruptcy court conducted a hearing to determine (1) whether to approve the settlement agreement between the Developer, secured lenders and the Port Authority; and (2) whether TPBC can assert third-party beneficiary rights to the lease agreement and require that prior to the sale of the leasehold, any outstanding costs owed to contractors for the cost of building the project must be paid pursuant to the lease agreement’s “cure” provisions. On August 12, 2020, the bankruptcy court approved the settlement and denied TPBC’s third-party beneficiary rights under the lease agreement. On August 20, 2020, TPBC filed an appeal with the U.S. District Court for the Southern District of New York seeking to challenge the denial of its third-party beneficiary rights under the lease agreement’s “cure” provisions to avoid being subordinate to the claims of the secured lenders in the bankruptcy proceedings.
F-33

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Separately, on July 2, 2018, TPBC filed a lawsuit against the Port Authority, as owner of the project, seeking the same $113 million in damages pursuant to the lease agreement between the Port Authority and the Developer. On August 20, 2018, the Port Authority filed a motion to dismiss all causes of action, which was denied by the court on July 1, 2019. The Port Authority appealed this decision on July 15, 2019. On February 18, 2021, the Appellate Division affirmed in part and reversed in part the trial court's denial of the Port Authority's motion to dismiss TPBC’s causes of action.
On January 27, 2020, TPBC filed separate litigation in the U.S. District Court for the Southern District of New York in which TPBC asserted related claims against individual owners of the Developer for their wrongful conversion of project funds and against certain lenders that received interest payments from project funds and other amounts earmarked to pay the contractors. On June 1, 2020, the defendants filed motions to dismiss. On December 29, 2020, the District Court ordered that limited discovery take place before it decides the merits of the motions to dismiss.
As of December 31, 2020, the Company has concluded that the potential for a material adverse financial impact due to the Developer’s claims is remote. With respect to TPBC’s claims against the Developer, its owners, certain lenders and the Port Authority, management has made an estimate of the total anticipated recovery on this project, and such estimate is included in revenue recorded to date.
9. Leases
The Company leases certain office space, construction and office equipment, vehicles and temporary housing generally under non-cancelable operating leases. Leases with an initial term of one year or less are not recorded on the balance sheet, and the Company generally recognizes lease expense for these leases on a straight-line basis over the lease term. As of December 31, 2020, the Company’s operating leases have remaining lease terms ranging from less than one year to 18 years, some of which include options to renew the leases. The exercise of lease renewal options is generally at the Company’s sole discretion. The Company’s leases do not contain any material residual value guarantees or material restrictive covenants.
The Company determines if an arrangement is a lease at inception. Operating lease ROU assets are included in other assets, while current and long-term operating lease liabilities are included in accrued expenses and other current liabilities, and other long-term liabilities, respectively, on the Consolidated Balance Sheet as of December 31, 2020. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. The present value of future lease payments are discounted using either the implicit rate in the lease, if known, or the Company’s incremental borrowing rate for the specific lease as of the lease commencement date. The ROU asset is also adjusted for any prepayments made or incentives received. The lease terms include options to extend or terminate the lease only to the extent it is reasonably certain any of those options will be exercised. Lease expense is recognized on a straight-line basis over the lease term. The Company accounts for lease components (e.g., fixed payments) separate from the non-lease components (e.g., common-area maintenance costs). The Company does not have any material financing leases.
The following table presents components of lease expense for the years ended December 31, 2020 and 2019:

|  | For the year ended December 31,
(in thousands) |  | 2020 | 2019
Operating lease expense |  | $ | 14,547 |  | $ | 15,854 |
Short-term lease expense(a) |  | 87,969 |  | 72,562 |
|  | 102,516 |  | 88,416 |
Less: Sublease income |  | 1,026 |  | 1,077 |
Total lease expense |  | $ | 101,490 |  | $ | 87,339 |

(a)Short-term lease expense includes all leases with lease terms ranging from less than one month to one year. Short-term leases include, among other things, construction equipment rented on an as-needed basis as well as temporary housing.
F-34

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table presents supplemental balance sheet information related to operating leases:

|  | As of December 31,
(dollars in thousands) | Balance Sheet Line Item | 2020 | 2019
Assets |  |  |
ROU assets | Other assets | $ | 55,897 | $ | 40,156
Total lease assets |  | $ | 55,897 | $ | 40,156
Liabilities |  |  |
Current lease liabilities | Accrued expenses and other current liabilities | $ | 7,661 | $ | 11,392
Long-term lease liabilities | Other long-term liabilities | 51,336 | 31,900
Total lease liabilities |  | $ | 58,997 | $ | 43,292
Weighted-average remaining lease term |  | 12.5 years | 5.0 years
Weighted-average discount rate |  | 9.22 | % | 5.96 | %

The following table presents supplemental cash flow information and non-cash activity related to operating leases:

| As of December 31,
(in thousands) | 2020 | 2019
Operating cash flow information: |  |
Cash paid for amounts included in the measurement of lease liabilities | $ | (14,591) |  | $ | (15,658) |
Non-cash activity: |  |
ROU assets obtained in exchange for lease liabilities | $ | 29,244 |  | $ | 9,784 |

The following table presents maturities of operating lease liabilities on an undiscounted basis as of December 31, 2020:

Year (in thousands) | Operating Leases
2021 | $ | 12,512 |
2022 | 10,528 |
2023 | 7,723 |
2024 | 6,141 |
2025 | 5,354 |
Thereafter | 65,633 |
Total lease payments | 107,891 |
Less: Imputed interest | 48,894 |
Total | $ | 58,997 |

10. Share-Based Compensation
On April 10, 2018, the Company adopted the Tutor Perini Corporation Omnibus Incentive Plan (the “Current Plan”), which was approved by the Company’s shareholders on May 23, 2018. The Current Plan effected the merger of the Company’s Amended and Restated Tutor Perini Corporation Long-Term Incentive Plan, as amended and restated on October 2, 2014 (the “2014 Plan”) and the Tutor Perini Corporation Incentive Compensation Plan adopted on April 3, 2017 (the “2017 Plan,” together with the 2014 Plan and the Current Plan, the “Plans”). The Current Plan provides for various types of share-based grants, including restricted and unrestricted stock units and stock options. Restricted and unrestricted stock units give the holder the right to exchange their stock units for shares of the Company’s common stock on a one-for-one basis. Stock options give the holder the right to purchase shares of the Company’s common stock subsequent to the vesting date at a defined exercise price. A stock option exercise price must be equal to or greater than the fair value of the Company’s common stock on the date of the award. Restricted stock units and stock options are usually subject to certain service and performance conditions as well as other restrictions. The term for stock options is limited to 10 years from the award date. As of December 31, 2020, there were 1,539,172 shares of common stock available for grant under the Company’s Current Plan. As of December 31, 2020, the Plans had an aggregate of 3,310,265 of restricted stock units and stock options from outstanding, historical awards that either have not vested or have vested but have not been exercised. Any awards that were granted under the 2014 Plan or the 2017 Plan that are forfeited, cancelled or held back for net settlement will become available to be issued under the Current Plan.
F-35

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The terms of the Plans give the Company the right to settle the vesting of share-based grants in cash or shares.
Many of the awards issued under the Plans contain separate tranches, each for a separate performance period and each with a performance target to be established subsequent to the award date; accordingly, the tranches are accounted for under ASC 718, Stock Compensation (“ASC 718”) as separate grants, with the grant date being the date the performance targets for a given tranche are established and communicated to the grantee. Similarly, for these awards, compliance with the requirements of the Plans is also based on the number of units granted in a given year, as determined by ASC 718, rather than the number of units awarded in a given year.
The following table summarizes restricted stock unit and stock option activity:

| Restricted Stock Units |  | Stock Options
| Number |  | Weighted- Average Grant Date Fair Value Per Share |  | Number |  | Weighted- Average Exercise/ (Strike) Price Per Share
Outstanding as of December 31, 2017 | 1,397,984 |  |  | $ | 30.11 |  |  | 2,554,034 |  |  | $ | 20.45 |
Granted | 699,000 |  |  | 24.21 |  |  | 664,000 |  |  | 23.20 |
Expired or cancelled | (240,289) |  |  | 32.76 |  |  | (274,990) |  |  | 22.82 |
Vested/exercised | (387,695) |  |  | 28.67 |  |  | — |  |  | — |
Outstanding as of December 31, 2018 | 1,469,000 |  |  | $ | 27.27 |  |  | 2,943,044 |  |  | $ | 20.89 |
Granted | 530,000 |  |  | 20.23 |  |  | 220,000 |  |  | 19.66 |
Expired or cancelled | (104,029) |  |  | 28.98 |  |  | (884,029) |  |  | 21.03 |
Vested/exercised | (179,971) |  |  | 25.39 |  |  | — |  |  | — |
Outstanding as of December 31, 2019 | 1,715,000 |  |  | $ | 25.19 |  |  | 2,279,015 |  |  | $ | 20.62 |
Granted | 245,000 |  |  | 20.67 |  |  | 165,000 |  |  | 19.24 |
Expired or cancelled | (403,750) |  |  | 25.52 |  |  | (168,750) |  |  | 25.87 |
Vested/exercised | (521,250) |  |  | 29.44 |  |  | — |  |  | — |
Outstanding as of December 31, 2020 | 1,035,000 |  |  | $ | 21.85 |  |  | 2,275,265 |  |  | $ | 20.13 |

Included in the above table are certain restricted stock unit grants which are classified as liabilities in accordance with ASC 718 because they contain a guaranteed minimum payout. These awards may be performance-based or time-based and may be settled in shares of the Company's stock, cash or a combination thereof, at the Company's discretion. As of December 31, 2020 and 2019, there were 270,000 and 390,000 restricted stock units with guaranteed minimum payouts outstanding, with weighted-average grant date fair values per share of $27.80 and $27.89, respectively. The Company recognized liabilities for these awards totaling approximately $2.4 million and $2.9 million as of December 31, 2020 and 2019, respectively. During 2020, the Company paid approximately $0.3 million to settle these awards, and there were no cash settlements in 2019 or 2018.
The following table summarizes unrestricted stock units, which are generally issued to the non-employee members of the Company’s Board of Directors as part of their annual retainer fees:

| Unrestricted Stock Units
Year | Number |  | Weighted-Average Grant Date Fair Value Per Share
2018 | 115,420 |  |  | $ | 21.26 |
2019 | 98,591 |  |  | 15.72 |
2020 | 194,177 |  |  | 8.60 |

Unrestricted stock units vest immediately upon grant and are converted to shares of the Company’s stock on a one-for-one basis. The fair value of unrestricted stock units issued during 2020, 2019 and 2018 was approximately $1.7 million, $1.5 million and $2.5 million, respectively.
The fair value of restricted stock units that vested during 2020, 2019 and 2018 was approximately $4.1 million, $3.1 million and $7.9 million, respectively. As of December 31, 2020, the balance of unamortized restricted stock and stock option expense was $9.0 million and $2.3 million, respectively, which is expected to be recognized over weighted-average periods of 2.0 years for restricted stock units and 2.0 years for stock options.
F-36

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The 2,275,265 outstanding stock options as of December 31, 2020 had an intrinsic value of $0.9 million and a weighted-average remaining contractual life of 4.6 years. Of those outstanding options: (1) 1,715,265 were exercisable with an intrinsic value of $0.9 million, a weighted-average exercise price of $20.43 per share and a weighted-average remaining contractual life of 3.5 years; (2) 560,000 have not vested and have no intrinsic value, a weighted-average exercise price of $19.21 per share and a weighted-average remaining contractual life of 8.1 years. The 560,000 unvested stock options include 328,125 with time-based or market-based vesting conditions that are expected to vest, as well as 231,875 with market-based vesting conditions that are not expected to vest.
The fair value of restricted and unrestricted stock units is based on the closing price of the Company’s common stock on the New York Stock Exchange on the date of the grant and the fair value of stock options is based on the Black-Scholes model. Certain performance-based awards contain market condition components tied to the Company’s total shareholder return in relation to its peer companies, as calculated over a multi-year performance period (“TSR awards”). The fair value of the TSR awards is determined using a Monte Carlo simulation model. Significant assumptions used in this simulation model include the Company’s expected volatility, a risk-free rate based on U.S. Treasury yield curve rates with maturities consistent with the performance period, and the volatilities for each of the Company’s peers. The ultimate payout on TSR awards is determined at the end of the performance period and will vary based on actual total shareholder return performance results. Compensation expense related to the TSR awards is recognized regardless of whether the market condition is satisfied, provided that the requisite service period has been completed.
The fair value on the grant date and the significant assumptions used in the Black-Scholes option-pricing model are as follows:

| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Total stock options granted | 165,000 |  |  | 220,000 |  |  | 664,000 |
Weighted-average grant date fair value | $ | 7.67 |  |  | $ | 7.59 |  |  | $ | 11.09 |
Weighted-average assumptions: |  |  |  |  |
Risk-free rate | 1.2 | % |  | 2.1 | % |  | 2.6 | %
Expected life of options(a) | 6.3 years |  | 6.1 years |  | 5.8 years
Expected volatility(b) | 60.7 | % |  | 39.4 | % |  | 42.2 | %
Expected quarterly dividends | $ | — |  |  | $ | — |  |  | $ | — |

_____________________________________________________________________________________________________________
(a)Calculated using the simplified method due to the terms of the stock options and the limited pool of grantees.
(b)Calculated using historical volatility of the Company’s common stock over periods commensurate with the expected life of the option.
For the respective years ended December 31, 2020, 2019 and 2018, the Company recognized, as part of general and administrative expenses, costs for share-based payment arrangements for employees of $10.2 million, $17.5 million and $21.1 million. Additionally for the same periods, the Company recognized as part of general and administrative expenses costs for share-based awards to non-employee directors of $1.6 million, $1.6 million and $1.7 million, respectively. The aggregate tax benefits for these awards were approximately $1.3 million, $2.9 million and $3.8 million, for the respective periods.
11. Employee Benefit Plans
Defined Benefit Pension Plan
The Company has a defined benefit pension plan that covers certain of its executive, professional, administrative and clerical employees, subject to certain specified service requirements. The pension plan is noncontributory and benefits are based on an employee’s years of service and “final average earnings,” as defined by the pension plan. The pension plan provides reduced benefits for early retirement and takes into account offsets for social security benefits. The Company also has an unfunded supplemental retirement plan (“Benefit Equalization Plan”) for certain employees whose benefits under the defined benefit pension plan were reduced because of compensation limitations under federal tax laws. Effective June 1, 2004, all benefit accruals under the Company’s pension plan and Benefit Equalization Plan were frozen; however, the current vested benefit was preserved. Pension disclosure as presented below includes aggregated amounts for both of the Company’s plans, except where otherwise indicated.
The Company historically has used the date of its year-end as its measurement date to determine the funded status of the pension plan.
F-37

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The long-term investment goals of the Company’s pension plan are to manage the assets in accordance with the legal requirements of all applicable laws; produce investment returns which maximize return within reasonable and prudent levels of risks; and achieve a fully funded status with regard to current pension liabilities. Some risk must be assumed in order to achieve the investment goals. Investments with the ability to withstand short and intermediate term variability are considered and some interim fluctuations in market value and rates of return are tolerated in order to achieve the pension plan’s longer-term objectives.
The pension plan’s assets are managed by a third-party investment manager. The Company monitors investment performance and risk on an ongoing basis.
The following table sets forth a summary of net periodic benefit cost for the years ended December 31, 2020, 2019 and 2018:

| Year Ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Interest cost | $ | 3,032 |  |  | $ | 3,801 |  |  | $ | 3,496 |
Service cost | 925 |  |  | 900 |  |  | 875 |
Expected return on plan assets | (4,022) |  |  | (4,170) |  |  | (4,302) |
Recognized net actuarial losses | 2,407 |  |  | 1,933 |  |  | 2,067 |
Net periodic benefit cost | $ | 2,342 |  |  | $ | 2,464 |  |  | $ | 2,136 |
Actuarial assumptions used to determine net cost: |  |  |  |  |
Discount rate | 3.07 | % |  | 4.12 | % |  | 3.45 | %
Expected return on assets | 5.75 | % |  | 5.75 | % |  | 6.00 | %
Rate of increase in compensation | N/A |  | N/A |  | N/A

The target asset allocation for the Company’s pension plan by asset category for 2021 and the actual asset allocation as of December 31, 2020 and 2019 by asset category are as follows:

| Percentage of Plan Assets as of December 31,
| Target Allocation 2021 |  |
|  | Actual Allocation
Asset Category |  | 2020 |  | 2019
Cash | 5 | % |  | 5 | % |  | 4 | %
Equity funds: |  |  |  |  |
Domestic | 35 |  |  | 34 |  |  | 47 |
International | 15 |  |  | 17 |  |  | 18 |
Fixed income funds | 45 |  |  | 44 |  |  | 31 |
Total | 100 | % |  | 100 | % |  | 100 | %

The Company expects to contribute approximately $4.0 million to its defined benefit pension plan in 2021.
Future benefit payments under the plans are estimated as follows:

(in thousands) |
Year ended December 31, |
2021 | $ | 6,800 |
2022 | 6,746 |
2023 | 6,657 |
2024 | 6,617 |
2025 | 6,526 |
2026-2030 | 30,704 |
Total | $ | 64,050 |

F-38

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following tables provide a reconciliation of the changes in the fair value of plan assets and plan benefit obligations during 2020 and 2019, and a summary of the funded status as of December 31, 2020 and 2019:

| Year Ended December 31,
(in thousands) | 2020 |  | 2019
Change in Fair Value of Plan Assets |  |  |
Balance at beginning of year | $ | 73,357 |  |  | $ | 63,109 |
Actual return on plan assets | 899 |  |  | 12,123 |
Company contribution | 4,408 |  |  | 4,793 |
Benefit payments | (6,724) |  |  | (6,668) |
Balance at end of year | $ | 71,940 |  |  | $ | 73,357 |

| Year Ended December 31,
(in thousands) | 2020 |  | 2019
Change in Benefit Obligations |  |  |
Balance at beginning of year | $ | 102,607 |  |  | $ | 95,869 |
Interest cost | 3,032 |  |  | 3,801 |
Service cost | 925 |  |  | 900 |
Assumption change loss | 7,902 |  |  | 8,373 |
Actuarial loss | 81 |  |  | 332 |
Benefit payments | (6,723) |  |  | (6,668) |
Balance at end of year | $ | 107,824 |  |  | $ | 102,607 |

| As of December 31,
(in thousands) | 2020 |  | 2019
Funded status | $ | (35,884) |  |  | $ | (29,250) |
Net unfunded amounts recognized in Consolidated Balance Sheets consist of: |  |  |
Current liabilities | $ | (293) |  |  | $ | (279) |
Long-term liabilities | (35,591) |  |  | (28,971) |
Total net unfunded amount recognized in Consolidated Balance Sheets | $ | (35,884) |  |  | $ | (29,250) |

Amounts not yet recognized in net periodic benefit cost and included in accumulated other comprehensive loss consist of net actuarial losses before income taxes of $65.2 million and $56.5 million as of December 31, 2020 and 2019, respectively.
The discount rate used in determining the accumulated post-retirement benefit obligation was 2.2% as of December 31, 2020 and 3.1% as of December 31, 2019. The discount rate used for the accumulated post-retirement obligation was derived using a blend of U.S. Treasury and high-quality corporate bond discount rates.
The expected long-term rate of return on assets assumption was 5.8% for both 2020 and 2019. The expected long-term rate of return on assets assumption was developed considering forward looking capital market assumptions and historical return expectations for each asset class assuming the plans’ target asset allocation and full availability of invested assets.
Closely held fund strategies seek to capitalize on inefficiencies identified across different asset classes or markets and include long-short equity and long equity, event-driven, multi-strategy and distressed credit.
Plan assets were measured at fair value. Registered investment companies are public investment vehicles valued using the Net Asset Value (“NAV”) of shares held by the pension plan at year-end. Equity and fixed income funds are valued based on quoted market prices in active markets. Closely held funds held by the pension plan, which are only available through private offerings, do not have readily determinable fair values. Estimates of fair value of these funds were determined using the information provided by the fund managers and are generally based on the NAV per share or its equivalent.
F-39

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table sets forth the pension plan assets at fair value in accordance with the fair value hierarchy described in Note 12:

| As of December 31, 2020 |  | As of December 31, 2019
| Fair Value Hierarchy |  |  |  | Fair Value Hierarchy |  |
(in thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash and cash equivalents | $ | 1,582 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,582 |  |  | $ | 2,867 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,867 |
Fixed income funds | 2,000 |  |  | 3,086 |  |  | — |  |  | 5,086 |  |  | — |  |  | 2,861 |  |  | — |  |  | 2,861 |
Mutual funds | 54,671 |  |  | — |  |  | — |  |  | 54,671 |  |  | 54,085 |  |  | — |  |  | — |  |  | 54,085 |
| $ | 58,253 |  |  | $ | 3,086 |  |  | $ | — |  |  | $ | 61,339 |  |  | $ | 56,952 |  |  | $ | 2,861 |  |  | $ | — |  |  | $ | 59,813 |
Closely held funds(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity partnerships |  |  |  |  |  |  | 3,700 |  |  |  |  |  |  |  |  | 3,660 |
Hedge fund investments |  |  |  |  |  |  | 6,901 |  |  |  |  |  |  |  |  | 9,884 |
Total closely held funds(a) |  |  |  |  |  |  | 10,601 |  |  |  |  |  |  |  |  | 13,544 |
Total | $ | 58,253 |  |  | $ | 3,086 |  |  | $ | — |  |  | $ | 71,940 |  |  | $ | 56,952 |  |  | $ | 2,861 |  |  | $ | — |  |  | $ | 73,357 |

_____________________________________________________________________________________________________________
(a)Closely held funds in private investment were comprised of a combination of Level 1, 2 and 3 investments, but were not categorized in the fair value hierarchy because they were measured at NAV using the practical expedient under ASC 820, Fair Value Measurement (“ASC 820”).
As of December 31, 2020 and 2019, pension plan assets included approximately $10.6 million and $13.5 million, respectively, of investments in hedge funds and equity partnerships which do not have readily determinable fair values. The underlying holdings of the funds were comprised of a combination of assets for which the estimate of fair value is determined using information provided by fund managers.
The plans have benefit obligations in excess of the fair value of each plan’s assets as follows:

| As of December 31, 2020 |  | As of December 31, 2019
(in thousands) | Pension Plan |  | Benefit Equalization Plan |  | Total |  | Pension Plan |  | Benefit Equalization Plan |  | Total
Projected benefit obligation | $ | 104,657 |  |  | $ | 3,167 |  |  | $ | 107,824 |  |  | $ | 99,515 |  |  | $ | 3,092 |  |  | $ | 102,607 |
Accumulated benefit obligation | $ | 104,657 |  |  | $ | 3,167 |  |  | $ | 107,824 |  |  | $ | 99,515 |  |  | $ | 3,092 |  |  | $ | 102,607 |
Fair value of plans' assets | 71,940 |  |  | — |  |  | 71,940 |  |  | 73,357 |  |  | — |  |  | 73,357 |
Projected benefit obligation greater than fair value of plans' assets | $ | 32,717 |  |  | $ | 3,167 |  |  | $ | 35,884 |  |  | $ | 26,158 |  |  | $ | 3,092 |  |  | $ | 29,250 |
Accumulated benefit obligation greater than fair value of plans' assets | $ | 32,717 |  |  | $ | 3,167 |  |  | $ | 35,884 |  |  | $ | 26,158 |  |  | $ | 3,092 |  |  | $ | 29,250 |

Section 401(k) Plan
The Company has a contributory Section 401(k) plan which covers its executive, professional, administrative and clerical employees, subject to certain specified service requirements. The cost recognized by the Company for its 401(k) plan was $4.3 million in 2020, $4.1 million in 2019 and $4.2 million in 2018. The Company’s contribution is based on a non-discretionary match of employees’ contributions, as defined by the plan.
Multiemployer Plans
In addition to the Company’s defined benefit pension and contribution plans discussed above, the Company participates in multiemployer pension plans for its union construction employees. Contributions are based on the hours worked by employees covered under various collective bargaining agreements. Under the Employee Retirement Income Security Act, a contributor to a multiemployer plan is only liable for its proportionate share of a plan’s unfunded vested liability upon termination, or withdrawal from a plan. The Company currently has no intention of withdrawing from any of the multiemployer pension plans in which it participates and, therefore, has not recognized a liability for its proportionate share of any unfunded vested liabilities associated with these plans.
F-40

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table summarizes key information for the plans that the Company made significant contributions to during the three years ended December 31, 2020:

|  |  | Pension Protections Act Zone Status |  | FIP/RP Status Pending Or Implemented |  | Company Contributions (amounts in millions) |  |  | Expiration Date of Collective Bargaining Agreement
Pension Fund | EIN/Pension Plan Number |  | 2020 |  | 2019 |  |  | 2020(b) |  | 2019(b) |  | 2018 | Surcharge Imposed |
The Pension, Hospitalization and Benefit Plan of the Electrical Industry - Pension Trust Fund | 13-6123601/001 |  | Green |  | Green |  | N/A |  | $ | 10.1 |  |  | $ | 9.3 |  | (a) | $ | 12.2 |  | (a) | No |  | 4/13/2022
Excavators Union Local 731 Pension Fund | 13-1809825/002 |  | Green |  | Green |  | N/A |  | 4.8 |  |  | 5.1 |  |  | 4.1 |  |  | No |  | 4/30/2022
Carpenters Pension Trust Fund for Northern California | 94-6050970 |  | Red |  | Red |  | Implemented |  | 4.6 |  |  | 4.0 |  |  | 4.9 |  |  | No |  | 6/30/2023
Northern California Electrical Workers Pension Plan | 94-6062674 |  | Green |  | Green |  | N/A |  | 3.5 |  |  | 3.0 |  |  | 4.1 |  |  | No |  | 5/31/2022

_____________________________________________________________________________________________________________
(a)These amounts exceeded 5% of the respective total plan contributions.
(b)The Company's contributions as a percentage of total plan contributions were not available for the 2020 and 2019 plan years for any of the above pension funds, excluding The Pension, Hospitalization and Benefit Plan of the Electrical Industry - Pension Trust Fund, Excavators Union Local 731 Pension Fund and Northern California Electrical Workers Pension Plan for the 2019 plan year.
In addition to the individually significant plans described above, the Company also contributed approximately $46.8 million in 2020, $36.5 million in 2019 and $36.6 million in 2018 to other multiemployer pension plans. Funding for these payments is principally provided for in the contracts with our customers.
12. Fair Value Measurements
The fair value hierarchy established by ASC 820 prioritizes the use of inputs used in valuation techniques into the following three levels:
•Level 1 inputs are observable quoted prices in active markets for identical assets or liabilities
•Level 2 inputs are observable, either directly or indirectly, but are not Level 1 inputs
•Level 3 inputs are unobservable
The following fair value hierarchy table presents the Company’s assets that are measured at fair value on a recurring basis as of December 31, 2020 and 2019:

| As of December 31, 2020 |  | As of December 31, 2019
| Fair Value Hierarchy |  |  |  | Fair Value Hierarchy |  |
(in thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash and cash equivalents(a) | $ | 374,289 |  |  | $ | — |  |  | $ | — |  |  | $ | 374,289 |  |  | $ | 193,685 |  |  | $ | — |  |  | $ | — |  |  | $ | 193,685 |
Restricted cash(a) | 77,563 |  |  | — |  |  | — |  |  | 77,563 |  |  | 8,416 |  |  | — |  |  | — |  |  | 8,416 |
Restricted investments(b) | — |  |  | 78,912 |  |  | — |  |  | 78,912 |  |  | — |  |  | 70,974 |  |  | — |  |  | 70,974 |
Investments in lieu of retainage(c) | 92,609 |  |  | 1,300 |  |  | — |  |  | 93,909 |  |  | 89,572 |  |  | 1,219 |  |  | — |  |  | 90,791 |
Total | $ | 544,461 |  |  | $ | 80,212 |  |  | $ | — |  |  | $ | 624,673 |  |  | $ | 291,673 |  |  | $ | 72,193 |  |  | $ | — |  |  | $ | 363,866 |

_____________________________________________________________________________________________________________
(a)Includes money market funds and short-term investments with maturity dates of three months or less when acquired.
(b)Restricted investments, as of December 31, 2020, consist of investments in U.S. government agency securities of $40.5 million, corporate debt securities of $37.5 million and corporate certificates of deposits of $0.9 million, all with maturities of up to five years, and are valued based on pricing models, which are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets and are therefore classified as Level 2 assets. As of December 31, 2019, restricted investments consisted of investments in corporate debt securities of $35.8 million and U.S. government agency securities of $33.8 million and corporate certificates of deposits of $1.4 million, all with maturities of up to five years. The amortized cost of these available-for-sale securities at December 31, 2020 and 2019 was not materially different from the fair value.
(c)Investments in lieu of retainage are included in retainage receivable and as of December 31, 2020 are comprised of money market funds of $92.6 million and municipal bonds of $1.3 million. The fair values of the money market funds are measured using quoted market prices; therefore, they are classified as Level 1 assets. The fair values of municipal bonds are measured using readily available pricing sources for comparable instruments; therefore, they are classified as Level 2 assets. As of December 31, 2019, investments in lieu of retainage consisted of money market funds of $89.6 million and
F-41

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
municipal bonds of $1.2 million. The amortized cost of these available-for-sale securities at December 31, 2020 and 2019 was not materially different from the fair value.
The carrying values of receivables, payables and other amounts arising out of normal contract activities, including retainage, which may be settled beyond one year, are estimated to approximate fair value. Of the Company’s long-term debt, the fair value of the 2017 Senior Notes was $495.0 million and $485.0 million as of December 31, 2020 and 2019, respectively. The fair value of the Term Loan B was $425.0 million as of December 31, 2020 and was determined using Level 2 inputs, specifically third-party quoted market prices. The fair value of the Convertible Notes was $69.1 million and $193.4 million as of December 31, 2020 and 2019, respectively. The fair values of the 2017 Senior Notes and Convertible Notes were determined using Level 1 inputs, specifically current observable market prices. The fair value of the Convertible Notes repurchased on the extinguishment date was used in determining the loss on extinguishment. The fair value on the extinguishment date approximated the face value of the notes and was determined using Level 2 inputs. The reported value of the Company’s remaining borrowings approximates fair value as of December 31, 2020 and 2019.
During the year ended December 31, 2019, the Company acquired an additional 25% interest in a Civil segment joint venture. The Company’s 50% ownership interest prior to the acquisition was accounted for under the proportionate consolidation method and had a carrying value of $3.2 million. Through this acquisition, the Company’s interest increased from 50% to 75%, and it obtained a controlling financial interest in the joint venture, thereby requiring consolidation by the Company. The transaction was accounted for as a business combination achieved in stages, and under ASC 805, Business Combinations, the previously held equity interest in the joint venture was remeasured at the acquisition date fair value with the resulting gain of $37.8 million recognized in earnings, which was included in general and administrative expenses in the Company’s Consolidated Statement of Operations. The fair value of the joint venture and the Company’s existing investment therein was determined based on the fair value of the underlying assets and liabilities acquired by applying an income approach that used discounted future estimated cash flows based on projected revenues, expenses and weighted-average cost of capital. The fair value of the assets and liabilities of the joint venture was recognized in the Company’s consolidated financial statements as of the acquisition date with the 25% interest not owned by the Company recorded as a noncontrolling interest. The acquisition resulted in the recording of an intangible asset for construction contract backlog of $75.6 million. The fair values of the other assets acquired and liabilities assumed were not material. Pro forma results of operations for this acquisition of additional interest in the joint venture have not been presented because they are not material to the Company’s results of operations.
13. Variable Interest Entities (VIEs)
The Company may form joint ventures or partnerships with third parties for the execution of projects. In accordance with ASC 810, the Company assesses its partnerships and joint ventures at inception to determine if any meet the qualifications of a VIE. The Company considers a joint venture a VIE if either (a) the total equity investment is not sufficient to permit the entity to finance its activities without additional subordinated financial support, (b) characteristics of a controlling financial interest are missing (either the ability to make decisions through voting or other rights, the obligation to absorb the expected losses of the entity or the right to receive the expected residual returns of the entity), or (c) the voting rights of the equity holders are not proportional to their obligations to absorb the expected losses of the entity and/or their rights to receive the expected residual returns of the entity, and substantially all of the entity’s activities either involve or are conducted on behalf of an investor that has disproportionately few voting rights. Upon the occurrence of certain events outlined in ASC 810, the Company reassesses its initial determination of whether a joint venture is a VIE.
ASC 810 also requires the Company to determine whether it is the primary beneficiary of the VIE. The Company concludes that it is the primary beneficiary and consolidates the VIE if the Company has both (a) the power to direct the economically significant activities of the VIE and (b) the obligation to absorb losses of, or the right to receive benefits from, the VIE that could potentially be significant to the VIE. The Company considers the contractual agreements that define the ownership structure, distribution of profits and losses, risks, responsibilities, indebtedness, voting rights and board representation of the respective parties in determining if the Company is the primary beneficiary. The Company also considers all parties that have direct or implicit variable interests when determining whether it is the primary beneficiary. In accordance with ASC 810, management’s assessment of whether the Company is the primary beneficiary of a VIE is performed continuously.
As of December 31, 2020, the Company had unconsolidated VIE-related current assets and liabilities of $0.6 million and $0.5 million, respectively, included in the Company’s Consolidated Balance Sheet. As of December 31, 2019, the Company had unconsolidated VIE-related current assets and liabilities of $1.5 million and $1.4 million, respectively, included in the Company’s Consolidated Balance Sheet. The Company’s maximum exposure to loss as a result of its investments in unconsolidated VIEs is typically limited to the aggregate of the carrying value of the investment and future funding commitments. There were no future funding requirements for the unconsolidated VIEs as of December 31, 2020.
F-42

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
As of December 31, 2020, the Company’s Consolidated Balance Sheet included current and noncurrent assets of $405.7 million and $14.2 million, respectively, as well as current liabilities of $514.9 million related to the operations of its consolidated VIEs. As of December 31, 2019, the Company’s Consolidated Balance Sheet included current and noncurrent assets of $365.0 million and $52.0 million, respectively, as well as current liabilities of $556.1 million related to the operations of its consolidated VIEs.
Below is a discussion of some of the Company’s more significant or unique VIEs.
The Company established a joint venture to construct the Purple Line Extension Section 2 (Tunnels and Stations) and Section 3 (Stations) mass-transit projects in Los Angeles, California with a combined value of approximately $2.8 billion. The Company has a 75% interest in the joint venture with the remaining 25% held by O&G Industries, Inc. (“O&G”). The joint venture was initially financed with contributions from the partners and, per the terms of the joint venture agreement, the partners may be required to provide additional capital contributions in the future. The Company has determined that this joint venture is a VIE for which the Company is the primary beneficiary.
The Company also established a joint venture with Parsons Corporation (“Parsons”) to construct the Newark Liberty International Airport Terminal One project, a $1.4 billion transportation infrastructure project in Newark, New Jersey. The Company has an 80% interest in the joint venture with the remaining 20% held by Parsons. The joint venture was initially financed with contributions from the partners and, per the terms of the joint venture agreement, the partners may be required to provide additional capital contributions in the future. The Company has determined that this joint venture is a VIE for which the Company is the primary beneficiary.
14. Business Segments
The Company offers general contracting, pre-construction planning and comprehensive project management services, including planning and scheduling of manpower, equipment, materials and subcontractors required for the timely completion of a project in accordance with the terms and specifications contained in a construction contract. The Company also offers self-performed construction services: site work, concrete forming and placement, steel erection, electrical, mechanical, plumbing, and HVAC (heating, ventilation and air conditioning). As described below, the Company’s business is conducted through three segments: Civil, Building and Specialty Contractors. These segments are determined based on how the Company’s Chairman and Chief Executive Officer (chief operating decision maker) aggregates business units when evaluating performance and allocating resources.
The Civil segment specializes in public works construction and the replacement and reconstruction of infrastructure. The contracting services provided by the Civil segment include construction and rehabilitation of highways, bridges, tunnels, mass-transit systems, military defense facilities, and water management and wastewater treatment facilities.
The Building segment has significant experience providing services for private and public works customers in a number of specialized building markets, including: hospitality and gaming, transportation, health care, commercial offices, government facilities, sports and entertainment, education, correctional facilities, biotech, pharmaceutical, industrial and high-tech.
The Specialty Contractors segment specializes in electrical, mechanical, plumbing, HVAC, fire protection systems and pneumatically placed concrete for a full range of civil and building construction projects in the industrial, commercial, hospitality and gaming, and mass-transit end markets. This segment provides the Company with unique strengths and capabilities that allow the Company to position itself as a full-service contractor with greater control over scheduled work, project delivery, and cost and risk management.
To the extent that a contract is co-managed and co-executed among segments, the Company allocates the share of revenues and costs of the contract to each segment to reflect the shared responsibilities in the management and execution of the project.
F-43

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following tables set forth certain reportable segment information relating to the Company’s operations for the years ended December 31, 2020, 2019 and 2018:

| Reportable Segments |  |  |  |
(in thousands) | Civil |  | Building |  | Specialty Contractors |  | Total |  | Corporate |  | Consolidated Total
Year ended December 31, 2020 |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 2,565,210 |  |  | $ | 2,114,459 |  |  | $ | 1,135,018 |  |  | $ | 5,814,687 |  |  | $ | — |  |  | $ | 5,814,687 |
Elimination of intersegment revenue | (365,311) |  |  | (129,818) |  |  | (795) |  |  | (495,924) |  |  | — |  |  | (495,924) |
Revenue from external customers | $ | 2,199,899 |  |  | $ | 1,984,641 |  |  | $ | 1,134,223 |  |  | $ | 5,318,763 |  |  | $ | — |  |  | $ | 5,318,763 |
Income (loss) from construction operations(a) | $ | 245,835 |  |  | $ | 53,158 |  |  | $ | 17,203 |  |  | $ | 316,196 |  |  | $ | (53,852) |  | (b) | $ | 262,344 |
Capital expenditures | $ | 51,044 |  |  | $ | 878 |  |  | $ | 1,917 |  |  | $ | 53,839 |  |  | $ | 942 |  |  | $ | 54,781 |
Depreciation and amortization(c) | $ | 90,250 |  |  | $ | 1,703 |  |  | $ | 3,983 |  |  | $ | 95,936 |  |  | $ | 11,098 |  |  | $ | 107,034 |
Year ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 2,054,097 |  |  | $ | 1,764,753 |  |  | $ | 929,738 |  |  | $ | 4,748,588 |  |  | $ | — |  |  | $ | 4,748,588 |
Elimination of intersegment revenue | (274,745) |  |  | (22,713) |  |  | (298) |  |  | (297,756) |  |  | — |  |  | (297,756) |
Revenue from external customers | $ | 1,779,352 |  |  | $ | 1,742,040 |  |  | $ | 929,440 |  |  | $ | 4,450,832 |  |  | $ | — |  |  | $ | 4,450,832 |
Income (loss) from construction operations(d) | $ | (150,837) |  |  | $ | 23,655 |  |  | $ | (172,637) |  |  | $ | (299,819) |  |  | $ | (65,188) |  | (b) | $ | (365,007) |
Capital expenditures | $ | 82,156 |  |  | $ | 518 |  |  | $ | 688 |  |  | $ | 83,362 |  |  | $ | 834 |  |  | $ | 84,196 |
Depreciation and amortization(c) | $ | 47,905 |  |  | $ | 1,934 |  |  | $ | 4,136 |  |  | $ | 53,975 |  |  | $ | 11,069 |  |  | $ | 65,044 |
Year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ | 1,810,232 |  |  | $ | 1,866,902 |  |  | $ | 1,006,870 |  |  | $ | 4,684,004 |  |  | $ | — |  |  | $ | 4,684,004 |
Elimination of intersegment revenue | (224,139) |  |  | (5,203) |  |  | — |  |  | (229,342) |  |  | — |  |  | (229,342) |
Revenue from external customers | $ | 1,586,093 |  |  | $ | 1,861,699 |  |  | $ | 1,006,870 |  |  | $ | 4,454,662 |  |  | $ | — |  |  | $ | 4,454,662 |
Income (loss) from construction operations(e) | $ | 168,256 |  |  | $ | 43,939 |  |  | $ | 43,430 |  |  | $ | 255,625 |  |  | $ | (63,749) |  | (b) | $ | 191,876 |
Capital expenditures | $ | 73,866 |  |  | $ | 1,655 |  |  | $ | 777 |  |  | $ | 76,298 |  |  | $ | 771 |  |  | $ | 77,069 |
Depreciation and amortization(c) | $ | 29,685 |  |  | $ | 1,956 |  |  | $ | 4,358 |  |  | $ | 35,999 |  |  | $ | 11,268 |  |  | $ | 47,267 |

_____________________________________________________________________________________________________________
(a)During the year ended December 31, 2020, the Company recorded a charge of $15.2 million in income (loss) from construction operations (an after-tax impact of $11.0 million, or $0.22 per diluted share) due to an unfavorable legal ruling pertaining to a mechanical project in California in the Specialty Contractors segment, as well as a charge of $13.2 million (an after-tax impact of $9.6 million, or $0.19 per diluted share) due to an adverse arbitration ruling pertaining to an electrical project in New York in the Specialty Contractors segment. The Company also recorded a gain of $25.7 million in Specialty Contractors segment general and administrative expenses (an after-tax impact of $18.6 million, or $0.36 per diluted share) as a result of a favorable arbitration decision and subsequent settlement of the related employment dispute.
(b)Consists primarily of corporate general and administrative expenses.
(c)Depreciation and amortization is included in income (loss) from construction operations.
(d)During the year ended December 31, 2019, the Company recorded a non-cash goodwill impairment charge of $379.9 million in income (loss) from construction operations (an after-tax impact of $330.5 million, or $6.58 per diluted share) resulting from an interim impairment test the Company performed as of June 1, 2019. For further information and breakdown of the goodwill impairment charge by segment, see Note 6. In addition, during the year ended December 31, 2019 the Company recorded a charge of $166.8 million in income (loss) from construction operations (an after-tax impact of $119.4 million, or $2.38 per diluted share), which principally impacted the Civil segment, as a result of the adverse jury verdict on the Alaskan Way Viaduct (SR 99) Matter, as discussed in Note 8. Lastly, the Company recognized a one-time gain of $37.8 million (an after-tax impact of $27.1 million, or $0.54 per diluted share) in Civil segment general and administrative expenses related to a remeasurement of its investment in a joint venture (see Note 12).
(e)During the year ended December 31, 2018, the Company recorded a charge of $17.8 million in income (loss) from construction operations (an after-tax impact of $12.8 million, or $0.25 per diluted share), which was primarily non-cash, as a result of the unexpected adverse outcome of an arbitration decision related to a subcontract back charge dispute on a Civil segment project in New York that was completed in 2013.
The above were the only changes in estimates considered material to the Company’s results of operations during the periods presented herein.
F-44

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Total assets by segment were as follows:

| As of December 31,
(in thousands) | 2020 |  | 2019
Civil | $ | 3,141,991 |  |  | $ | 2,791,402 |
Building | 1,147,649 |  |  | 995,298 |
Specialty Contractors | 673,891 |  |  | 635,180 |
Corporate and other(a) | 82,086 |  |  | 63,897 |
Total assets | $ | 5,045,617 |  |  | $ | 4,485,777 |

_____________________________________________________________________________________________________________
(a) Consists principally of cash, equipment, tax-related assets and insurance-related assets, offset by the elimination of assets related to intersegment revenue.
Geographic Information
Information concerning principal geographic areas is as follows:

| Year Ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Revenue: |  |  |  |  |
United States | $ | 4,953,045 |  |  | $ | 4,073,691 |  |  | $ | 4,180,206 |
Foreign and U.S. territories | 365,718 |  |  | 377,141 |  |  | 274,456 |
Total revenue | $ | 5,318,763 |  |  | $ | 4,450,832 |  |  | $ | 4,454,662 |

| As of December 31,
(in thousands) | 2020 |  | 2019
Assets: |  |  |
United States | $ | 4,836,735 |  |  | $ | 4,271,722 |
Foreign and U.S. territories | 208,882 |  |  | 214,055 |
Total assets | $ | 5,045,617 |  |  | $ | 4,485,777 |

Reconciliation of Segment Information to Consolidated Amounts
A reconciliation of segment results to the consolidated income (loss) before income taxes is as follows:

| Year Ended December 31,
(in thousands) | 2020 |  | 2019 |  | 2018
Income (loss) from construction operations | $ | 262,344 |  |  | $ | (365,007) |  |  | $ | 191,876 |
Other income (expense) | (11,853) |  |  | 6,667 |  |  | 4,256 |
Interest expense | (76,212) |  |  | (67,494) |  |  | (63,519) |
Income (loss) before income taxes | $ | 174,279 |  |  | $ | (425,834) |  |  | $ | 132,613 |

15. Related Party Transactions
The Company leases, at market rates, certain facilities from an entity owned by Ronald N. Tutor, the Company’s Chairman and Chief Executive Officer. Under these leases, the Company paid $3.2 million in 2020, $3.1 million in 2019 and $3.0 million in 2018, and recognized expense of $3.2 million in each of the three years.
Raymond R. Oneglia, Vice Chairman of O&G, is a director of the Company. The Company occasionally forms construction project joint ventures with O&G. During the three years ended December 31, 2020, the Company had active joint ventures with O&G including two infrastructure projects in the northeastern United States that were completed in 2017 and two mass-transit projects in Los Angeles, California to construct the Purple Line Extension Section 2 (Tunnels and Stations) and Section 3 (Stations), in which the Company’s and O&G’s joint venture interests are 75% and 25%, respectively. O&G may provide equipment and services to these joint ventures on customary trade terms; there were no material payments made by these joint ventures to O&G for services and equipment during the years ended December 31, 2020, 2019 and 2018.
F-45

Table of Contents
TUTOR PERINI CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Peter Arkley, Senior Managing Director, Construction Services Group, of Alliant Insurance Services, Inc. (“Alliant”), is a director of the Company. The Company uses Alliant for various insurance-related services. The associated expenses for services provided for the years ended December 31, 2020, 2019 and 2018 were $16.0 million, $18.4 million and $14.7 million, respectively. The Company owed Alliant $2.7 million as of both December 31, 2020 and 2019 for services rendered.
16. Unaudited Quarterly Financial Data
The following table presents selected unaudited quarterly financial data for each full quarterly period of 2020 and 2019:

(in thousands, except per common share amounts) | First Quarter | Second Quarter | Third Quarter | Fourth Quarter
Year Ended December 31, 2020
Revenue | $ | 1,250,729 |  | $ | 1,276,427 |  | $ | 1,442,091 |  | $ | 1,349,516 |
Gross profit | 111,080 |  | 117,754 |  | 124,915 |  | 132,404 |
Income from construction operations | 47,227 |  | 57,696 |  | 83,021 |  | 74,400 |
Income before income taxes | 31,272 |  | 40,435 |  | 49,360 |  | 53,212 |
Net income | 26,138 |  | 30,859 |  | 49,323 |  | 46,017 |
Net income attributable to Tutor Perini Corporation | 17,371 |  | 18,709 |  | 36,819 |  | 35,495 |
Earnings per common share: |  |  |  |
Basic | $ | 0.35 |  | $ | 0.37 |  | $ | 0.72 |  | $ | 0.70 |
Diluted | $ | 0.34 |  | $ | 0.37 |  | $ | 0.72 |  | $ | 0.69 |

(in thousands, except per common share amounts) | First Quarter | Second Quarter | Third Quarter | Fourth Quarter
Year Ended December 31, 2019
Revenue | $ | 958,487 |  | $ | 1,125,275 |  | $ | 1,189,345 |  | $ | 1,177,725 |
Gross profit (loss) | 88,470 |  | 100,943 |  | 115,063 |  | (62,704) |
Income (loss) from construction operations | 22,913 |  | (341,717) |  | 47,943 |  | (94,146) |
Income (loss) before income taxes | 6,910 |  | (358,339) |  | 32,312 |  | (106,717) |
Net income (loss) | 4,722 |  | (315,439) |  | 26,721 |  | (76,229) |
Net income (loss) attributable to Tutor Perini Corporation | (356) |  | (320,530) |  | 19,313 |  | (86,117) |
Earnings (loss) per common share: |  |  |  |
Basic | $ | (0.01) |  | $ | (6.38) |  | $ | 0.38 |  | $ | (1.71) |
Diluted | $ | (0.01) |  | $ | (6.38) |  | $ | 0.38 |  | $ | (1.71) |

F-46