10-Q 1 pra-20230930.htm 10-Q pra-20230930
0001127703false2023Q312/31http://fasb.org/us-gaap/2023#NetInvestmentIncomehttp://fasb.org/us-gaap/2023#GainLossOnInvestmentshttp://fasb.org/us-gaap/2023#GainLossOnInvestmentshttp://fasb.org/us-gaap/2023#GainLossOnInvestmentsP3Y00011277032023-01-012023-09-3000011277032023-11-03xbrli:shares00011277032023-09-30iso4217:USD00011277032022-12-31iso4217:USDxbrli:shares0001127703us-gaap:CommonStockMember2023-06-300001127703us-gaap:AdditionalPaidInCapitalMember2023-06-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-06-300001127703us-gaap:RetainedEarningsMember2023-06-300001127703us-gaap:TreasuryStockCommonMember2023-06-3000011277032023-06-300001127703us-gaap:TreasuryStockCommonMember2023-07-012023-09-3000011277032023-07-012023-09-300001127703us-gaap:AdditionalPaidInCapitalMember2023-07-012023-09-300001127703us-gaap:CommonStockMember2023-07-012023-09-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-07-012023-09-300001127703us-gaap:RetainedEarningsMember2023-07-012023-09-300001127703us-gaap:CommonStockMember2023-09-300001127703us-gaap:AdditionalPaidInCapitalMember2023-09-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-09-300001127703us-gaap:RetainedEarningsMember2023-09-300001127703us-gaap:TreasuryStockCommonMember2023-09-300001127703us-gaap:CommonStockMember2022-12-310001127703us-gaap:AdditionalPaidInCapitalMember2022-12-310001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310001127703us-gaap:RetainedEarningsMember2022-12-310001127703us-gaap:TreasuryStockCommonMember2022-12-310001127703us-gaap:TreasuryStockCommonMember2023-01-012023-09-300001127703us-gaap:AdditionalPaidInCapitalMember2023-01-012023-09-300001127703us-gaap:CommonStockMember2023-01-012023-09-300001127703us-gaap:RetainedEarningsMember2023-01-012023-09-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300001127703us-gaap:CommonStockMember2022-06-300001127703us-gaap:AdditionalPaidInCapitalMember2022-06-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-06-300001127703us-gaap:RetainedEarningsMember2022-06-300001127703us-gaap:TreasuryStockCommonMember2022-06-3000011277032022-06-300001127703us-gaap:TreasuryStockCommonMember2022-07-012022-09-3000011277032022-07-012022-09-300001127703us-gaap:AdditionalPaidInCapitalMember2022-07-012022-09-300001127703us-gaap:RetainedEarningsMember2022-07-012022-09-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-07-012022-09-300001127703us-gaap:CommonStockMember2022-09-300001127703us-gaap:AdditionalPaidInCapitalMember2022-09-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-09-300001127703us-gaap:RetainedEarningsMember2022-09-300001127703us-gaap:TreasuryStockCommonMember2022-09-3000011277032022-09-300001127703us-gaap:CommonStockMember2021-12-310001127703us-gaap:AdditionalPaidInCapitalMember2021-12-310001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310001127703us-gaap:RetainedEarningsMember2021-12-310001127703us-gaap:TreasuryStockCommonMember2021-12-3100011277032021-12-310001127703us-gaap:TreasuryStockCommonMember2022-01-012022-09-3000011277032022-01-012022-09-300001127703us-gaap:AdditionalPaidInCapitalMember2022-01-012022-09-300001127703us-gaap:CommonStockMember2022-01-012022-09-300001127703us-gaap:RetainedEarningsMember2022-01-012022-09-300001127703us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-09-30pra:segment0001127703us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberpra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberpra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberpra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberpra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberpra:UtilitiesEnergyEquitySecuritiesMember2023-09-300001127703us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberpra:UtilitiesEnergyEquitySecuritiesMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberpra:UtilitiesEnergyEquitySecuritiesMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberpra:UtilitiesEnergyEquitySecuritiesMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberpra:EquityIndustrialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:EquityIndustrialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:EquityIndustrialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:EquityIndustrialSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberpra:AllOtherMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:AllOtherMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703pra:AllOtherMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:AllOtherMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703pra:InvestmentsInUnconsolidatedSubsidiariesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueMeasurementsRecurringMember2023-09-300001127703us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberpra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberpra:CorporateBondsMultipleObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberpra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberpra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberpra:EquityFinancialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberpra:UtilitiesEnergyEquitySecuritiesMember2022-12-310001127703us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberpra:UtilitiesEnergyEquitySecuritiesMember2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberpra:UtilitiesEnergyEquitySecuritiesMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMemberpra:UtilitiesEnergyEquitySecuritiesMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberpra:EquityIndustrialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:EquityIndustrialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberpra:EquityIndustrialSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:EquityIndustrialSecuritiesMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FixedIncomeFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberpra:AllOtherMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:AllOtherMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703pra:AllOtherMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:AllOtherMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:FairValueInputsLevel3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel12And3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel1Memberus-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:OtherInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-12-310001127703us-gaap:OtherInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:OtherInvestmentsMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703pra:InvestmentsInUnconsolidatedSubsidiariesMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:EquitySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueMeasurementsRecurringMember2022-12-310001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMember2022-12-310001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMembersrt:MinimumMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-30pra:pure0001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMembersrt:WeightedAverageMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMembersrt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:CorporateDebtLimitedObservableInputsMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:MortgageBackedSecuritiesMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:MortgageBackedSecuritiesMember2022-12-310001127703us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MortgageBackedSecuritiesMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:MortgageBackedSecuritiesMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:MortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:MortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:MortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:OtherAssetBackedSecuritiesMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:OtherAssetBackedSecuritiesMember2022-12-310001127703us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberpra:OtherAssetBackedSecuritiesMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberpra:OtherAssetBackedSecuritiesMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:OtherAssetBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputComparabilityAdjustmentMemberus-gaap:MarketApproachValuationTechniqueMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberpra:OtherAssetBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberpra:OtherAssetBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:OtherAssetBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Member2023-09-300001127703us-gaap:FairValueInputsLevel3Member2022-12-310001127703us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputComparabilityAdjustmentMembersrt:WeightedAverageMember2023-09-300001127703us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberpra:ValuationTechniqueMonteCarloSimulationAndDiscountedCashFlowsMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-30xbrli:pure0001127703us-gaap:FairValueInputsLevel3Membersrt:MaximumMemberpra:ValuationTechniqueMonteCarloSimulationAndDiscountedCashFlowsMemberus-gaap:MeasurementInputComparabilityAdjustmentMember2023-09-300001127703us-gaap:FairValueInputsLevel3Memberpra:ValuationTechniqueMonteCarloSimulationAndDiscountedCashFlowsMemberus-gaap:MeasurementInputComparabilityAdjustmentMembersrt:WeightedAverageMember2023-09-300001127703us-gaap:CorporateDebtSecuritiesMember2023-06-300001127703us-gaap:AssetBackedSecuritiesMember2023-06-300001127703us-gaap:EquitySecuritiesMember2023-06-300001127703us-gaap:OtherInvestmentsMember2023-06-300001127703us-gaap:OtherLiabilitiesMember2023-06-300001127703pra:NetInvestmentIncomeMember2023-07-012023-09-300001127703us-gaap:CorporateDebtSecuritiesMemberpra:NetInvestmentIncomeMember2023-07-012023-09-300001127703us-gaap:AssetBackedSecuritiesMemberpra:NetInvestmentIncomeMember2023-07-012023-09-300001127703pra:NetInvestmentIncomeMemberus-gaap:EquitySecuritiesMember2023-07-012023-09-300001127703us-gaap:OtherInvestmentsMemberpra:NetInvestmentIncomeMember2023-07-012023-09-300001127703us-gaap:OtherLiabilitiesMemberpra:NetInvestmentIncomeMember2023-07-012023-09-300001127703us-gaap:CorporateDebtSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12023-07-012023-09-300001127703us-gaap:AssetBackedSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12023-07-012023-09-300001127703us-gaap:GainLossOnInvestmentsMember1us-gaap:EquitySecuritiesMember2023-07-012023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:GainLossOnInvestmentsMember12023-07-012023-09-300001127703us-gaap:GainLossOnInvestmentsMember12023-07-012023-09-300001127703us-gaap:OtherLiabilitiesMemberus-gaap:GainLossOnInvestmentsMember12023-07-012023-09-300001127703us-gaap:CorporateDebtSecuritiesMember2023-07-012023-09-300001127703us-gaap:AssetBackedSecuritiesMember2023-07-012023-09-300001127703us-gaap:EquitySecuritiesMember2023-07-012023-09-300001127703us-gaap:OtherInvestmentsMember2023-07-012023-09-300001127703us-gaap:OtherLiabilitiesMember2023-07-012023-09-300001127703us-gaap:CorporateDebtSecuritiesMember2023-09-300001127703us-gaap:AssetBackedSecuritiesMember2023-09-300001127703us-gaap:EquitySecuritiesMember2023-09-300001127703us-gaap:OtherInvestmentsMember2023-09-300001127703us-gaap:OtherLiabilitiesMember2023-09-300001127703us-gaap:CorporateDebtSecuritiesMember2022-12-310001127703us-gaap:AssetBackedSecuritiesMember2022-12-310001127703us-gaap:EquitySecuritiesMember2022-12-310001127703us-gaap:OtherInvestmentsMember2022-12-310001127703us-gaap:OtherLiabilitiesMember2022-12-310001127703us-gaap:CorporateDebtSecuritiesMemberpra:NetInvestmentIncomeMember2023-01-012023-09-300001127703us-gaap:AssetBackedSecuritiesMemberpra:NetInvestmentIncomeMember2023-01-012023-09-300001127703pra:NetInvestmentIncomeMemberus-gaap:EquitySecuritiesMember2023-01-012023-09-300001127703us-gaap:OtherInvestmentsMemberpra:NetInvestmentIncomeMember2023-01-012023-09-300001127703pra:NetInvestmentIncomeMember2023-01-012023-09-300001127703us-gaap:OtherLiabilitiesMemberpra:NetInvestmentIncomeMember2023-01-012023-09-300001127703us-gaap:GainLossOnInvestmentsMember12023-01-012023-09-300001127703us-gaap:CorporateDebtSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12023-01-012023-09-300001127703us-gaap:AssetBackedSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12023-01-012023-09-300001127703us-gaap:GainLossOnInvestmentsMember1us-gaap:EquitySecuritiesMember2023-01-012023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:GainLossOnInvestmentsMember12023-01-012023-09-300001127703us-gaap:OtherLiabilitiesMemberus-gaap:GainLossOnInvestmentsMember12023-01-012023-09-300001127703us-gaap:CorporateDebtSecuritiesMember2023-01-012023-09-300001127703us-gaap:AssetBackedSecuritiesMember2023-01-012023-09-300001127703us-gaap:EquitySecuritiesMember2023-01-012023-09-300001127703us-gaap:OtherInvestmentsMember2023-01-012023-09-300001127703us-gaap:OtherLiabilitiesMember2023-01-012023-09-300001127703us-gaap:MunicipalBondsMember2022-06-300001127703us-gaap:CorporateDebtSecuritiesMember2022-06-300001127703us-gaap:AssetBackedSecuritiesMember2022-06-300001127703us-gaap:EquitySecuritiesMember2022-06-300001127703us-gaap:OtherInvestmentsMember2022-06-300001127703us-gaap:OtherLiabilitiesMember2022-06-300001127703us-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001127703pra:NetInvestmentIncomeMemberus-gaap:MunicipalBondsMember2022-07-012022-09-300001127703us-gaap:CorporateDebtSecuritiesMemberpra:NetInvestmentIncomeMember2022-07-012022-09-300001127703us-gaap:AssetBackedSecuritiesMemberpra:NetInvestmentIncomeMember2022-07-012022-09-300001127703pra:NetInvestmentIncomeMemberus-gaap:EquitySecuritiesMember2022-07-012022-09-300001127703us-gaap:OtherInvestmentsMemberpra:NetInvestmentIncomeMember2022-07-012022-09-300001127703pra:NetInvestmentIncomeMember2022-07-012022-09-300001127703us-gaap:OtherLiabilitiesMemberpra:NetInvestmentIncomeMember2022-07-012022-09-300001127703us-gaap:MunicipalBondsMemberus-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001127703us-gaap:CorporateDebtSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001127703us-gaap:AssetBackedSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001127703us-gaap:GainLossOnInvestmentsMember1us-gaap:EquitySecuritiesMember2022-07-012022-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001127703us-gaap:OtherLiabilitiesMemberus-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001127703us-gaap:MunicipalBondsMember2022-07-012022-09-300001127703us-gaap:CorporateDebtSecuritiesMember2022-07-012022-09-300001127703us-gaap:AssetBackedSecuritiesMember2022-07-012022-09-300001127703us-gaap:EquitySecuritiesMember2022-07-012022-09-300001127703us-gaap:OtherInvestmentsMember2022-07-012022-09-300001127703us-gaap:OtherLiabilitiesMember2022-07-012022-09-300001127703us-gaap:MunicipalBondsMember2022-09-300001127703us-gaap:CorporateDebtSecuritiesMember2022-09-300001127703us-gaap:AssetBackedSecuritiesMember2022-09-300001127703us-gaap:EquitySecuritiesMember2022-09-300001127703us-gaap:OtherInvestmentsMember2022-09-300001127703us-gaap:OtherLiabilitiesMember2022-09-300001127703us-gaap:MunicipalBondsMember2021-12-310001127703us-gaap:CorporateDebtSecuritiesMember2021-12-310001127703us-gaap:AssetBackedSecuritiesMember2021-12-310001127703us-gaap:EquitySecuritiesMember2021-12-310001127703us-gaap:OtherInvestmentsMember2021-12-310001127703us-gaap:OtherLiabilitiesMember2021-12-310001127703us-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001127703pra:NetInvestmentIncomeMemberus-gaap:MunicipalBondsMember2022-01-012022-09-300001127703us-gaap:CorporateDebtSecuritiesMemberpra:NetInvestmentIncomeMember2022-01-012022-09-300001127703us-gaap:AssetBackedSecuritiesMemberpra:NetInvestmentIncomeMember2022-01-012022-09-300001127703pra:NetInvestmentIncomeMemberus-gaap:EquitySecuritiesMember2022-01-012022-09-300001127703us-gaap:OtherInvestmentsMemberpra:NetInvestmentIncomeMember2022-01-012022-09-300001127703pra:NetInvestmentIncomeMember2022-01-012022-09-300001127703us-gaap:OtherLiabilitiesMemberpra:NetInvestmentIncomeMember2022-01-012022-09-300001127703us-gaap:MunicipalBondsMemberus-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001127703us-gaap:CorporateDebtSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001127703us-gaap:AssetBackedSecuritiesMemberus-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001127703us-gaap:GainLossOnInvestmentsMember1us-gaap:EquitySecuritiesMember2022-01-012022-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001127703us-gaap:OtherLiabilitiesMemberus-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001127703us-gaap:MunicipalBondsMember2022-01-012022-09-300001127703us-gaap:CorporateDebtSecuritiesMember2022-01-012022-09-300001127703us-gaap:AssetBackedSecuritiesMember2022-01-012022-09-300001127703us-gaap:EquitySecuritiesMember2022-01-012022-09-300001127703us-gaap:OtherInvestmentsMember2022-01-012022-09-300001127703us-gaap:OtherLiabilitiesMember2022-01-012022-09-300001127703pra:PrivateDebtFundsMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2023-09-300001127703pra:PrivateDebtFundsMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2022-12-310001127703pra:LongshortEquityFundsMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2023-09-300001127703pra:LongshortEquityFundsMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2022-12-310001127703us-gaap:PrivateEquityFundsMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2023-09-300001127703us-gaap:PrivateEquityFundsMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2022-12-310001127703pra:InvestmentsInUnconsolidatedSubsidiariesMemberpra:StructuredCreditFundMember2023-09-300001127703pra:InvestmentsInUnconsolidatedSubsidiariesMemberpra:StructuredCreditFundMember2022-12-310001127703pra:StrategyFocusedFundMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2023-09-300001127703pra:StrategyFocusedFundMemberpra:InvestmentsInUnconsolidatedSubsidiariesMember2022-12-310001127703pra:PrivateDebtFundsMember2023-01-012023-09-30pra:fund0001127703pra:PrivateDebtFundsMembersrt:MinimumMember2023-01-012023-09-300001127703srt:MaximumMemberpra:PrivateDebtFundsMember2023-01-012023-09-300001127703pra:LongshortEquityFundsMember2023-01-012023-09-300001127703us-gaap:PrivateEquityFundsMember2023-01-012023-09-300001127703pra:StructuredCreditFundMember2023-01-012023-09-300001127703pra:WorkersCompensationInsuranceReportingUnitMember2023-06-300001127703pra:WorkersCompensationInsuranceReportingUnitMember2023-07-012023-09-300001127703us-gaap:FairValueMeasurementsNonrecurringMember2023-09-300001127703us-gaap:FairValueMeasurementsNonrecurringMember2022-12-310001127703us-gaap:CashSurrenderValueMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001127703us-gaap:CashSurrenderValueMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001127703us-gaap:CashSurrenderValueMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001127703us-gaap:CashSurrenderValueMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001127703us-gaap:OtherInvestmentsMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001127703us-gaap:OtherInvestmentsMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001127703us-gaap:OtherInvestmentsMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001127703us-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001127703us-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001127703us-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001127703us-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001127703us-gaap:SeniorNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001127703us-gaap:SeniorNotesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001127703us-gaap:SeniorNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001127703us-gaap:SeniorNotesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001127703pra:ContributionCertificateDue2031Memberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001127703us-gaap:EstimateOfFairValueFairValueDisclosureMemberpra:ContributionCertificateDue2031Member2023-09-300001127703pra:ContributionCertificateDue2031Memberus-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001127703us-gaap:EstimateOfFairValueFairValueDisclosureMemberpra:ContributionCertificateDue2031Member2022-12-31pra:subsidiary0001127703us-gaap:USTreasurySecuritiesMember2023-09-300001127703us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2023-09-300001127703us-gaap:USStatesAndPoliticalSubdivisionsMember2023-09-300001127703us-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001127703us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember2023-09-300001127703us-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300001127703us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember2023-09-300001127703us-gaap:USTreasurySecuritiesMember2022-12-310001127703us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember2022-12-310001127703us-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001127703us-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001127703us-gaap:GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember2022-12-310001127703us-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310001127703us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember2022-12-31pra:investment0001127703us-gaap:AssetPledgedAsCollateralMember2023-09-300001127703pra:LloydsSyndicatesMember2023-09-300001127703pra:NonGovernmentBackedMember2023-09-30pra:securitypra:issuer0001127703pra:NonGovernmentBackedMember2022-12-310001127703us-gaap:ResidentialMortgageBackedSecuritiesMember2023-06-300001127703pra:OtherCommercialMortgageBackedSecuritiesMember2023-06-300001127703pra:OtherAssetBackedSecuritiesMember2023-06-300001127703us-gaap:ResidentialMortgageBackedSecuritiesMember2023-07-012023-09-300001127703pra:OtherCommercialMortgageBackedSecuritiesMember2023-07-012023-09-300001127703pra:OtherAssetBackedSecuritiesMember2023-07-012023-09-300001127703pra:OtherCommercialMortgageBackedSecuritiesMember2023-09-300001127703pra:OtherAssetBackedSecuritiesMember2023-09-300001127703pra:OtherCommercialMortgageBackedSecuritiesMember2022-12-310001127703pra:OtherAssetBackedSecuritiesMember2022-12-310001127703us-gaap:ResidentialMortgageBackedSecuritiesMember2023-01-012023-09-300001127703pra:OtherCommercialMortgageBackedSecuritiesMember2023-01-012023-09-300001127703pra:OtherAssetBackedSecuritiesMember2023-01-012023-09-300001127703us-gaap:DebtSecuritiesMember2023-07-012023-09-300001127703us-gaap:DebtSecuritiesMember2022-07-012022-09-300001127703us-gaap:DebtSecuritiesMember2023-01-012023-09-300001127703us-gaap:DebtSecuritiesMember2022-01-012022-09-300001127703us-gaap:EquitySecuritiesMember2023-07-012023-09-300001127703us-gaap:EquitySecuritiesMember2022-07-012022-09-300001127703us-gaap:EquitySecuritiesMember2023-01-012023-09-300001127703us-gaap:EquitySecuritiesMember2022-01-012022-09-300001127703pra:ShortTermInvestmentsAndOtherInvestedAssetsMember2023-07-012023-09-300001127703pra:ShortTermInvestmentsAndOtherInvestedAssetsMember2022-07-012022-09-300001127703pra:ShortTermInvestmentsAndOtherInvestedAssetsMember2023-01-012023-09-300001127703pra:ShortTermInvestmentsAndOtherInvestedAssetsMember2022-01-012022-09-300001127703us-gaap:CashSurrenderValueMember2023-07-012023-09-300001127703us-gaap:CashSurrenderValueMember2022-07-012022-09-300001127703us-gaap:CashSurrenderValueMember2023-01-012023-09-300001127703us-gaap:CashSurrenderValueMember2022-01-012022-09-300001127703pra:QualifiedAffordableHousingTaxCreditPartnershipsMember2023-09-300001127703pra:QualifiedAffordableHousingTaxCreditPartnershipsMember2022-12-310001127703pra:OtherLimitedPartnershipsandLimitedLiabilityCompanyMember2023-09-300001127703pra:OtherLimitedPartnershipsandLimitedLiabilityCompanyMember2022-12-310001127703srt:MaximumMemberpra:TaxCreditPartnershipsLessThan20OwnershipMember2023-09-300001127703pra:TaxCreditPartnershipsLessThan20OwnershipMember2023-09-300001127703pra:TaxCreditPartnershipsLessThan20OwnershipMember2022-12-31pra:business0001127703pra:OtherLimitedPartnershipsandLimitedLiabilityCompanyGreaterThan25PercentOwnershipMember2023-09-300001127703pra:OtherLimitedPartnershipsandLimitedLiabilityCompanyGreaterThan25PercentOwnershipMember2022-12-310001127703pra:OtherLimitedPartnershipsandLimitedLiabilityCompanyLessthan25PercentOwnershipMember2023-09-300001127703pra:OtherLimitedPartnershipsandLimitedLiabilityCompanyLessthan25PercentOwnershipMember2022-12-310001127703us-gaap:TaxYear2020Memberpra:TaxCreditPartnershipInvestmentTaxCreditCarryforwardMember2022-07-012022-09-300001127703us-gaap:TaxYear2020Memberpra:TaxCreditPartnershipInvestmentTaxCreditCarryforwardMember2022-01-012022-09-300001127703us-gaap:TaxYear2019Member2023-01-012023-09-300001127703pra:TaxYearAfter2022Member2023-09-300001127703pra:NORCALGroupMember2023-07-012023-09-300001127703pra:NORCALGroupMember2023-01-012023-09-30pra:bonds0001127703us-gaap:TaxYear2020Member2023-09-30pra:unitpra:reporting_unit00011277032023-04-012023-06-300001127703pra:SpecialtyPropertyandCasualtyMember2021-12-310001127703pra:WorkersCompensationInsuranceReportingUnitMember2021-12-310001127703pra:SegregatedPortfolioCellReinsuranceMember2021-12-310001127703pra:SpecialtyPropertyandCasualtyMember2023-09-300001127703pra:WorkersCompensationInsuranceReportingUnitMember2023-09-300001127703pra:SegregatedPortfolioCellReinsuranceMember2023-09-300001127703pra:SpecialtyPropertyandCasualtyMember2022-12-310001127703pra:WorkersCompensationInsuranceReportingUnitMember2022-12-310001127703pra:SegregatedPortfolioCellReinsuranceMember2022-12-310001127703pra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:WorkersCompensationInsuranceReportingUnitMember2023-01-012023-09-300001127703pra:SegregatedPortfolioCellReinsuranceMember2023-01-012023-09-300001127703pra:SpecialtyPropertyandCasualtyMember2020-09-3000011277032022-01-012022-12-310001127703pra:NORCALGroupMember2022-01-012022-12-310001127703pra:NORCALGroupMember2022-01-012022-09-30pra:claim0001127703pra:SpecialtyPropertyandCasualtyMember2022-01-012022-12-310001127703pra:LloydsSyndicatesMember2023-04-012023-06-300001127703pra:FundingCommitmentsMember2023-09-300001127703pra:DataAnalyticsServicesMember2021-11-300001127703pra:DataAnalyticsServicesMember2021-11-012021-11-300001127703pra:DataAnalyticsServicesMember2023-01-012023-09-300001127703pra:DataAnalyticsServicesMember2023-07-012023-09-300001127703pra:DataAnalyticsServicesMember2022-07-012022-09-300001127703pra:DataAnalyticsServicesMember2022-01-012022-09-300001127703pra:DataAnalyticsServicesMember2023-09-300001127703pra:NORCALGroupMember2021-05-050001127703pra:NORCALGroupMember2023-09-300001127703pra:NORCALGroupMember2022-12-310001127703us-gaap:SeniorNotesMemberpra:Seniornotesdue2023Member2023-09-300001127703us-gaap:SeniorNotesMemberpra:Seniornotesdue2023Member2022-12-310001127703pra:ContributionCertificateDue2031Member2023-09-300001127703pra:ContributionCertificateDue2031Member2022-12-310001127703us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-04-280001127703us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-04-282023-04-280001127703us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-09-300001127703us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2022-12-310001127703srt:MinimumMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-01-012023-09-300001127703srt:MaximumMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-01-012023-09-300001127703pra:RevolvingCreditAgreementMembersrt:MinimumMemberus-gaap:LineOfCreditMember2023-01-012023-09-300001127703srt:MaximumMemberpra:TermLoanMemberus-gaap:LineOfCreditMember2023-01-012023-09-300001127703pra:FederalFundsRateMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-01-012023-09-300001127703pra:OneMonthLiborMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2023-01-012023-09-30pra:derivative_instrument0001127703pra:RevolvingCreditAgreementMemberus-gaap:InterestRateSwapMember2023-09-300001127703us-gaap:InterestRateSwapMemberpra:TermLoanMember2023-09-300001127703pra:RevolvingCreditAgreementMemberus-gaap:LineOfCreditMemberpra:SecuredOvernightFinancingRateSOFRMember2023-09-300001127703srt:MaximumMemberpra:TermLoanMemberus-gaap:LineOfCreditMemberpra:SecuredOvernightFinancingRateSOFRMember2023-09-300001127703us-gaap:InterestRateSwapMember2023-09-300001127703us-gaap:InterestRateSwapMemberus-gaap:CashFlowHedgingMember2023-09-3000011277032022-01-012022-03-3100011277032022-04-012022-06-3000011277032023-01-012023-03-310001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-06-300001127703us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-06-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-06-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-06-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-07-012023-09-300001127703us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-07-012023-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-07-012023-09-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-07-012023-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-09-300001127703us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-09-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-12-310001127703us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-12-310001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-12-310001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-01-012023-09-300001127703us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-01-012023-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-01-012023-09-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-01-012023-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-06-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-06-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-06-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-07-012022-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-07-012022-09-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-07-012022-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-09-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2021-12-310001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2021-12-310001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-12-310001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-01-012022-09-300001127703us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-01-012022-09-300001127703us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-01-012022-09-300001127703us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2023-09-300001127703us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMember2022-12-310001127703pra:PPMRRGMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-300001127703pra:PPMRRGMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310001127703us-gaap:RestrictedStockUnitsRSUMember2023-07-012023-09-300001127703us-gaap:RestrictedStockUnitsRSUMember2022-07-012022-09-300001127703us-gaap:RestrictedStockUnitsRSUMember2023-01-012023-09-300001127703us-gaap:RestrictedStockUnitsRSUMember2022-01-012022-09-300001127703us-gaap:PerformanceSharesMember2023-07-012023-09-300001127703us-gaap:PerformanceSharesMember2022-07-012022-09-300001127703us-gaap:PerformanceSharesMember2023-01-012023-09-300001127703us-gaap:PerformanceSharesMember2022-01-012022-09-300001127703pra:Syndicate1729Member2023-09-300001127703us-gaap:OperatingSegmentsMemberpra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703us-gaap:OperatingSegmentsMemberpra:WorkersCompensationInsuranceSegmentMember2023-07-012023-09-300001127703us-gaap:OperatingSegmentsMemberpra:SegregatedPortfolioCellReinsuranceMember2023-07-012023-09-300001127703us-gaap:OperatingSegmentsMemberus-gaap:CorporateMember2023-07-012023-09-300001127703us-gaap:IntersegmentEliminationMember2023-07-012023-09-300001127703us-gaap:MaterialReconcilingItemsMember2023-07-012023-09-300001127703us-gaap:OperatingSegmentsMemberpra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703us-gaap:OperatingSegmentsMemberpra:WorkersCompensationInsuranceSegmentMember2023-01-012023-09-300001127703us-gaap:OperatingSegmentsMemberpra:SegregatedPortfolioCellReinsuranceMember2023-01-012023-09-300001127703us-gaap:OperatingSegmentsMemberus-gaap:CorporateMember2023-01-012023-09-300001127703us-gaap:IntersegmentEliminationMember2023-01-012023-09-300001127703us-gaap:MaterialReconcilingItemsMember2023-01-012023-09-300001127703us-gaap:OperatingSegmentsMemberpra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703us-gaap:OperatingSegmentsMemberpra:WorkersCompensationInsuranceSegmentMember2022-07-012022-09-300001127703us-gaap:OperatingSegmentsMemberpra:SegregatedPortfolioCellReinsuranceMember2022-07-012022-09-300001127703us-gaap:OperatingSegmentsMemberus-gaap:CorporateMember2022-07-012022-09-300001127703us-gaap:IntersegmentEliminationMember2022-07-012022-09-300001127703us-gaap:OperatingSegmentsMemberpra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703us-gaap:OperatingSegmentsMemberpra:WorkersCompensationInsuranceSegmentMember2022-01-012022-09-300001127703us-gaap:OperatingSegmentsMemberpra:SegregatedPortfolioCellReinsuranceMember2022-01-012022-09-300001127703us-gaap:OperatingSegmentsMemberus-gaap:CorporateMember2022-01-012022-09-300001127703us-gaap:IntersegmentEliminationMember2022-01-012022-09-300001127703us-gaap:MaterialReconcilingItemsMember2022-01-012022-09-300001127703pra:HCPLMemberpra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703pra:HCPLMemberpra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703pra:HCPLMemberpra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:HCPLMemberpra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703pra:SmallBusinessUnitMemberpra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703pra:SmallBusinessUnitMemberpra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703pra:SmallBusinessUnitMemberpra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:SmallBusinessUnitMemberpra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703pra:MedicalTechnologyLiabilityMemberpra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703pra:MedicalTechnologyLiabilityMemberpra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703pra:MedicalTechnologyLiabilityMemberpra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:MedicalTechnologyLiabilityMemberpra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703pra:LloydsSyndicatesMemberpra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703pra:LloydsSyndicatesMemberpra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703pra:LloydsSyndicatesMemberpra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:LloydsSyndicatesMemberpra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703pra:OtherPremiumsMemberpra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703pra:OtherPremiumsMemberpra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703pra:OtherPremiumsMemberpra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:OtherPremiumsMemberpra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703pra:SpecialtyPropertyandCasualtyMember2023-07-012023-09-300001127703pra:SpecialtyPropertyandCasualtyMember2022-07-012022-09-300001127703pra:SpecialtyPropertyandCasualtyMember2023-01-012023-09-300001127703pra:SpecialtyPropertyandCasualtyMember2022-01-012022-09-300001127703pra:TraditionalBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2023-07-012023-09-300001127703pra:TraditionalBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2022-07-012022-09-300001127703pra:TraditionalBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2023-01-012023-09-300001127703pra:TraditionalBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2022-01-012022-09-300001127703pra:AlternativeMarketBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2023-07-012023-09-300001127703pra:AlternativeMarketBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2022-07-012022-09-300001127703pra:AlternativeMarketBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2023-01-012023-09-300001127703pra:AlternativeMarketBusinessMemberpra:WorkersCompensationInsuranceSegmentMember2022-01-012022-09-300001127703pra:WorkersCompensationInsuranceSegmentMember2023-07-012023-09-300001127703pra:WorkersCompensationInsuranceSegmentMember2022-07-012022-09-300001127703pra:WorkersCompensationInsuranceSegmentMember2023-01-012023-09-300001127703pra:WorkersCompensationInsuranceSegmentMember2022-01-012022-09-300001127703pra:WorkersCompensationAlternativeMarketBusinessMemberpra:SegregatedPortfolioCellReinsuranceMember2023-07-012023-09-300001127703pra:WorkersCompensationAlternativeMarketBusinessMemberpra:SegregatedPortfolioCellReinsuranceMember2022-07-012022-09-300001127703pra:WorkersCompensationAlternativeMarketBusinessMemberpra:SegregatedPortfolioCellReinsuranceMember2023-01-012023-09-300001127703pra:WorkersCompensationAlternativeMarketBusinessMemberpra:SegregatedPortfolioCellReinsuranceMember2022-01-012022-09-300001127703pra:HCPLMemberpra:SegregatedPortfolioCellReinsuranceMember2023-07-012023-09-300001127703pra:HCPLMemberpra:SegregatedPortfolioCellReinsuranceMember2022-07-012022-09-300001127703pra:HCPLMemberpra:SegregatedPortfolioCellReinsuranceMember2023-01-012023-09-300001127703pra:HCPLMemberpra:SegregatedPortfolioCellReinsuranceMember2022-01-012022-09-300001127703pra:SegregatedPortfolioCellReinsuranceMember2023-07-012023-09-300001127703pra:SegregatedPortfolioCellReinsuranceMember2022-07-012022-09-300001127703pra:SegregatedPortfolioCellReinsuranceMember2023-01-012023-09-300001127703pra:SegregatedPortfolioCellReinsuranceMember2022-01-012022-09-300001127703us-gaap:PensionPlansDefinedBenefitMember2023-07-012023-09-300001127703us-gaap:PensionPlansDefinedBenefitMember2022-07-012022-09-300001127703us-gaap:PensionPlansDefinedBenefitMember2023-01-012023-09-300001127703us-gaap:PensionPlansDefinedBenefitMember2022-01-012022-09-30
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2023 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: 0-16533
ProAssurance Corporation
(Exact name of registrant as specified in its charter)
Delaware63-1261433
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer Identification No.)
100 Brookwood Place,Birmingham,AL35209
(Address of principal executive offices)(Zip Code)
(205)877-4400
(Registrant’s telephone number,
including area code)
(Former name, former address and former
fiscal year, if changed since last report)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.01 per sharePRANew York Stock Exchange
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, 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 Accelerated filer 
Non-accelerated filerSmaller 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. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes     No  
As of November 3, 2023, there were 50,969,343 shares of the registrant’s common stock outstanding.


Glossary of Terms and Acronyms

When the following terms and acronyms appear in the text of this report, they have the meanings indicated below.
TermMeaning
AADAnnual aggregate deductible
AOCIAccumulated other comprehensive income (loss)
BoardBoard of Directors of ProAssurance Corporation
BOLIBusiness owned life insurance
CARES ActCoronavirus Aid, Relief and Economic Security Act
Council of Lloyd'sThe governing body for Lloyd's of London
CODMChief Operating Decision Maker
DDRDeath, disability and retirement
DPACDeferred policy acquisition costs
Eastern ReEastern Re, LTD, S.P.C.
EBUBEarned but unbilled premium
ECO/XPLExtra-contractual obligations/excess of policy limit claims
ERCEmployee Retention Credit
FALFunds at Lloyd's
FASBFinancial Accounting Standards Board
FHLBFederal Home Loan Bank
FHLMCFederal Home Loan Mortgage Corporation
FNMAFederal National Mortgage Association
FSMAFinancial Services and Markets Act
GAAPGenerally accepted accounting principles in the United States of America
GNMAGovernment National Mortgage Association
HCPLHealthcare professional liability
IBNRIncurred but not reported
Inova ReInova Re, LTD, S.P.C.
Interest Rate SwapsProAssurance's two forward-starting interest rate swap agreements associated with its Revolving Credit Agreement and Term Loan
IRSInternal Revenue Service
LIBORLondon Interbank Offered Rate
LLCLimited liability company
Lloyd'sLloyd's of London market
LPLimited partnership
Medical Technology LiabilityMedical technology and life sciences products liability
NAVNet asset value
NOLNet operating loss
NORCALNORCAL Insurance Company, formerly known as NORCAL Mutual Insurance Company
NRSRONationally recognized statistical rating organization
NYSENew York Stock Exchange
OCIOther comprehensive income (loss)
PCAOBPublic Company Accounting Oversight Board
PPM RRGPreferred Physicians Medical Risk Retention Group, a Mutual Insurance Company
Revolving Credit AgreementProAssurance's $250 million revolving credit agreement
ROEReturn on equity
ROURight-of-use
SECSecurities and Exchange Commission
SOFRSecured Overnight Financing Rate
SPCSegregated portfolio cell
2

TermMeaning
Specialty P&CSpecialty Property and Casualty
Syndicate 1729Lloyd's of London Syndicate 1729
Syndicate 6131Lloyd's of London Syndicate 6131 was a Special Purpose Arrangement with Lloyd's of London Syndicate 1729.
Syndicate Credit AgreementUnconditional revolving credit agreement with the Premium Trust Fund of Syndicate 1729
TCJATax Cuts and Jobs Act H.R.1 of 2017
Term LoanProAssurance's $125 million delayed draw term loan
U.K.United Kingdom of Great Britain and Northern Ireland
ULAEUnallocated loss adjustment expenses
VIEVariable interest entity
VOBAValue of business acquired

3

Caution Regarding Forward-Looking Statements
Any statements in this Form 10-Q that are not historical facts or explicitly stated as an opinion are specifically identified as forward-looking statements. These statements are based upon our estimates and anticipation of future events and are subject to significant risks, assumptions and uncertainties that could cause actual results to vary materially from the expected results described in the forward-looking statements. Forward-looking statements are identified by words such as, but not limited to, "anticipate," "believe," "estimate," "expect," "hope," "hopeful," "intend," "likely," "may," "optimistic," "possible," "potential," "preliminary," "project," "should," "will" and other analogous expressions. There are numerous factors that could cause our actual results to differ materially from those in the forward-looking statements. Thus, sentences and phrases that we use to convey our view of future events and trends are expressly designated as forward-looking statements as are sections of this Form 10-Q that are identified as giving our outlook on future business.
Forward-looking statements relating to our business include among other things: statements concerning future liquidity and capital requirements, investment valuation and performance, return on equity, financial ratios, net income, premiums, losses and loss reserve, premium rates and retention of current business, competition and market conditions, the expansion of product lines, the development or acquisition of business in new geographical areas, the pricing or availability of acceptable reinsurance, actions by regulators and rating agencies, court actions, legislative actions, payment or performance of obligations under indebtedness, payment of dividends and other matters.
These forward-looking statements are subject to significant risks, assumptions and uncertainties, including, among other things, the following factors that could affect the actual outcome of future events:
lchanges in general economic conditions, including the impact of inflation or deflation and unemployment;
lregulatory, legislative and judicial actions or decisions that could affect our business plans or operations;
lthe enactment or repeal of tort reforms;
lformation or dissolution of state-sponsored insurance entities providing coverages now offered by ProAssurance which could remove or add sizable numbers of insureds from or to the private insurance market;
lchanges in the interest and tax rate environment;
lresolution of uncertain tax matters and changes in tax laws;
lchanges in laws or government regulations regarding financial markets or market activity that may affect our business;
lchanges in the ability, or perception thereof, of the U.S. government to meet its obligations that may affect the U.S. economy and our business;
lperformance of financial markets affecting the fair value of our investments or making it difficult to determine the value of our investments;
lchanges in requirements or accounting policies and practices that may be adopted by our regulatory agencies, the FASB, the SEC, the PCAOB or the NYSE that may affect our business;
lchanges in laws or government regulations affecting the financial services industry, the property and casualty insurance industry or particular insurance lines underwritten by our subsidiaries or by Syndicate 1729;
lthe effect on our insureds, particularly the insurance needs of our insureds, and our loss costs, of changes in the healthcare delivery system and/or changes in the U.S. political climate that may affect healthcare policy or our business;
lconsolidation of our insureds into or under larger entities which may be insured by competitors, or may not have a risk profile that meets our underwriting criteria or which may not use external providers for insuring or otherwise managing substantial portions of their liability risk;
lthe effect of cyclical insurance industry trends on our underwriting, including demand and pricing in the insurance and reinsurance markets in which we operate;
luncertainties inherent in the estimate of our loss and loss adjustment expense reserve and reinsurance recoverable;
lchanges in the availability, cost, quality or collectability of insurance/reinsurance;
lthe results of litigation, including pre- or post-trial motions, trials and/or appeals we undertake;
leffects on our claims costs from mass tort litigation that are different from that anticipated by us;
lallegations of bad faith which may arise from our handling of any particular claim, including failure to settle;
lloss or consolidation of independent agents, agencies, brokers or brokerage firms;
lchanges in our organization, compensation and benefit plans;
lchanges in the business or competitive environment may limit the effectiveness of our business strategy and impact our revenues;
4

lour ability to retain and recruit senior management and other qualified personnel;
lthe availability, integrity and security of our technology infrastructure and that of our third-party providers, including any susceptibility to cyber-attacks which might result in a loss of information, operating capability or actual monetary loss;
lthe impact of a catastrophe, natural or man-made, including a pandemic event, as it relates to our business and insurance operations, investment results and our insured risks;
lthe effects of terrorism-related insurance legislation and laws;
lguaranty funds and other state assessments;
lour ability to achieve growth through expansion into new markets or through acquisitions or business combinations;
lchanges to the ratings assigned by rating agencies to our holding company or insurance subsidiaries, individually or as a group;
lprovisions in our charter documents, Delaware law and state insurance laws may impede attempts to replace or remove management or may impede a takeover;
lstate insurance restrictions may prohibit assets held by our insurance subsidiaries, including cash and investment securities, from being used for general corporate purposes; and
ltaxing authorities can take exception to our tax positions and cause us to incur significant amounts of legal and accounting costs and, if our defense is not successful, additional tax costs, including interest and penalties.
lexpected benefits from completed acquisitions may not be achieved or may be delayed longer than expected due to business disruption; loss of customers, employees or key agents; increased operating costs or inability to achieve cost savings and synergies; and assumption of greater than expected liabilities, among other reasons.
Our results may differ materially from those we expect and discuss in any forward-looking statements. The principal risk factors that may cause these material differences are described in "Item 1A, Risk Factors" in our December 31, 2022 report on Form 10-K and other documents we file with the SEC, such as our quarterly reports on Form 10-Q.
We caution readers not to place undue reliance on any such forward-looking statements, which are based upon conditions existing only as of the date made, and advise readers that these factors could affect our financial performance and could cause actual results for future periods to differ materially from any opinions or statements expressed with respect to future periods in any current statements. Except as required by law or regulations, we do not undertake and specifically decline any obligation to publicly release the result of any revisions that may be made to any forward-looking statements to reflect events or circumstances after the date of such statements or to reflect the occurrence of anticipated or unanticipated events.
5

TABLE OF CONTENTS

6

ProAssurance Corporation and Subsidiaries
Condensed Consolidated Balance Sheets (Unaudited)
(In thousands, except share data)
September 30,
2023
December 31,
2022
Assets
Investments
Fixed maturities, available-for-sale, at fair value (amortized cost, $3,742,234 and $3,852,411, respectively; allowance for expected credit losses, $560 as of September 30, 2023 and $427 as of December 31, 2022)
$3,355,312 $3,472,472 
Fixed maturities, trading, at fair value (cost, $46,081 and $45,048, respectively)
45,999 43,434 
Equity investments, at fair value (cost, $164,574 and $162,429, respectively)
143,920 143,738 
Short-term investments247,394 245,313 
Business owned life insurance77,502 81,746 
Investment in unconsolidated subsidiaries297,314 305,210 
Other investments (at fair value, $59,612 and $92,447, respectively, otherwise at cost or amortized cost)
62,816 95,770 
Total Investments4,230,257 4,387,683 
Cash and cash equivalents62,110 29,959 
Premiums receivable (allowance for expected credit losses, $7,921 as of September 30, 2023 and $7,658 as of December 31, 2022)
279,131 246,094 
Receivable from reinsurers on paid losses and loss adjustment expenses27,811 15,313 
Receivable from reinsurers on unpaid losses and loss adjustment expenses417,323 431,889 
Prepaid reinsurance premiums38,141 29,120 
Deferred policy acquisition costs67,257 58,148 
Deferred tax asset, net213,572 209,535 
Real estate, net29,990 29,968 
Operating lease ROU assets16,092 18,987 
Intangible assets, net61,939 66,835 
Goodwill5,500 49,610 
Other assets124,834 126,858 
Total Assets$5,573,957 $5,699,999 
Liabilities and Shareholders' Equity
Liabilities
Policy liabilities and accruals
Reserve for losses and loss adjustment expenses$3,395,651 $3,471,147 
Unearned premiums492,950 422,950 
Reinsurance premiums payable32,018 28,514 
Total Policy Liabilities and Accruals3,920,619 3,922,611 
Operating lease liabilities16,926 20,008 
Other liabilities197,990 226,379 
Debt less unamortized debt issuance costs
426,579 426,983 
Total Liabilities4,562,114 4,595,981 
Shareholders' Equity
Common shares (par value $0.01 per share, 100,000,000 shares authorized, 63,576,311 and 63,427,796 shares issued, respectively)
636 634 
Additional paid-in capital402,144 397,919 
Accumulated other comprehensive income (loss) (net of deferred tax expense (benefit) of ($80,975) and ($80,810), respectively)
(296,839)(298,607)
Retained earnings1,375,604 1,423,286 
Treasury shares, at cost (12,606,968 and 9,464,160 shares, respectively)
(469,702)(419,214)
Total Shareholders' Equity1,011,843 1,104,018 
Total Liabilities and Shareholders' Equity$5,573,957 $5,699,999 
See accompanying notes.
7

ProAssurance Corporation and Subsidiaries
Condensed Consolidated Statements of Changes in Capital (Unaudited)
(In thousands)
Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTreasury StockTotal
Balance at July 1, 2023$636 $400,705 $(267,480)$1,425,038 $(439,185)$1,119,714 
Common shares reacquired    (30,517)(30,517)
Share-based compensation 1,443    1,443 
Net effect of restricted and performance shares issued (4)   (4)
Other comprehensive income (loss)  (29,359)  (29,359)
Net income (loss)   (49,434) (49,434)
Balance at September 30, 2023$636 $402,144 $(296,839)$1,375,604 $(469,702)$1,011,843 
Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTreasury StockTotal
Balance at December 31, 2022$634 $397,919 $(298,607)$1,423,286 $(419,214)$1,104,018 
Common shares reacquired    (50,488)(50,488)
Common shares issued for compensation 1,064    1,064 
Share-based compensation 3,817    3,817 
Net effect of restricted and performance shares issued2 (656)   (654)
Dividends to shareholders   (2,701) (2,701)
Other comprehensive income (loss)  1,768   1,768 
Net income (loss)   (44,981) (44,981)
Balance at September 30, 2023$636 $402,144 $(296,839)$1,375,604 $(469,702)$1,011,843 
Continued on the following page.


























8

Continued from the previous page.

Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTreasury StockTotal
Balance at July 1, 2022$634 $395,540 $(234,188)$1,423,865 $(415,962)$1,169,889 
Common shares reacquired— — — — (3,252)(3,252)
Share-based compensation— 1,291 — — — 1,291 
Net effect of restricted and performance shares issued— (56)— — — (56)
Dividends to shareholders— — — (2,698)— (2,698)
Other comprehensive income (loss)— — (90,053)— — (90,053)
Net income (loss)— — — (9,125)— (9,125)
Balance at September 30, 2022$634 $396,775 $(324,241)$1,412,042 $(419,214)$1,065,996 
Common StockAdditional Paid-in CapitalAccumulated Other Comprehensive Income (Loss)Retained EarningsTreasury StockTotal
Balance at December 31, 2021$633 $392,941 $16,284 $1,434,491 $(415,962)$1,428,387 
Common shares reacquired— — — — (3,252)(3,252)
Common shares issued for compensation — 1,068 — — — 1,068 
Share-based compensation— 3,681 — — — 3,681 
Net effect of restricted and performance shares issued1 (915)— — — (914)
Dividends to shareholders— — — (8,105)— (8,105)
Other comprehensive income (loss)— — (340,525)— — (340,525)
Net income (loss)— — — (14,344)— (14,344)
Balance at September 30, 2022$634 $396,775 $(324,241)$1,412,042 $(419,214)$1,065,996 
See accompanying notes.
9

ProAssurance Corporation and Subsidiaries
Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited)
(In thousands, except per share data)
Three Months Ended September 30Nine Months Ended September 30
 
2023202220232022
Revenues
Net premiums earned$242,420 $258,355 $730,068 $771,337 
Net investment income32,754 24,745 94,714 67,132 
Equity in earnings (loss) of unconsolidated subsidiaries(61)(6,852)5,450 5,948 
Net investment gains (losses):
Impairment losses(141) (3,117)(972)
Portion of impairment losses recognized in other comprehensive income (loss) before taxes   419 
Net impairment losses recognized in earnings(141) (3,117)(553)
Other net investment gains (losses)(2,561)(8,262)6,273 (45,099)
Total net investment gains (losses)(2,702)(8,262)3,156 (45,652)
Other income3,336 5,097 6,864 13,215 
Total revenues275,747 273,083 840,252 811,980 
Expenses
Net losses and loss adjustment expenses208,891 198,073 605,245 585,166 
Underwriting, policy acquisition and operating expenses:
Operating expense41,132 45,847 118,394 127,595 
DPAC amortization32,882 34,832 100,385 102,193 
SPC U.S. federal income tax expense (benefit)(175)433 1,351 1,424 
SPC dividend expense (income)(2,518)183 3,171 1,697 
Interest expense5,514 5,513 16,478 14,872 
Goodwill impairment44,110  44,110  
Total expenses329,836 284,881 889,134 832,947 
Income (loss) before income taxes(54,089)(11,798)(48,882)(20,967)
Provision for income taxes:
Current expense (benefit)(1,228)1,953 (453)1,411 
Deferred expense (benefit)(3,427)(4,626)(3,448)(8,034)
Total income tax expense (benefit)(4,655)(2,673)(3,901)(6,623)
Net income (loss)(49,434)(9,125)(44,981)(14,344)
Other comprehensive income (loss), after tax, net of reclassification adjustments(29,359)(90,053)1,768 (340,525)
Comprehensive income (loss)$(78,793)$(99,178)$(43,213)$(354,869)
Earnings (loss) per share:
Basic$(0.95)$(0.17)$(0.85)$(0.27)
Diluted$(0.95)$(0.17)$(0.85)$(0.27)
Weighted average number of common shares outstanding:
Basic51,837 53,990 53,205 54,023 
Diluted52,006 54,124 53,339 54,151 
Cash dividends declared per common share$ $0.05 $0.05 $0.15 
See accompanying notes.
10

ProAssurance Corporation and Subsidiaries
Condensed Consolidated Statements of Cash Flows (Unaudited)
(In thousands)
Nine Months Ended September 30
 20232022
Operating Activities
Net income (loss)$(44,981)$(14,344)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Goodwill impairment44,110  
Depreciation and amortization, net of accretion20,085 30,046 
(Increase) decrease in cash surrender value of BOLI4,244 528 
Net investment (gains) losses(3,156)45,652 
Share-based compensation3,817 3,681 
Deferred income tax expense (benefit)(3,448)(8,034)
Policy acquisition costs, net of amortization (net deferral)(9,109)(6,077)
Equity in (earnings) loss of unconsolidated subsidiaries(5,450)(5,948)
Distributed earnings from unconsolidated subsidiaries7,048 28,500 
Other, net884 (534)
Change in:
Premiums receivable(33,037)(30,822)
Reinsurance related assets and liabilities(3,449)(6,533)
Other assets5,320 16,506 
Reserve for losses and loss adjustment expenses(75,496)(35,012)
Unearned premiums70,000 42,309 
Other liabilities(24,023)(53,245)
Net cash provided (used) by operating activities(46,641)6,673 
Investing Activities
Purchases of:
Fixed maturities, available-for-sale(261,485)(486,130)
Equity investments(1,354)(34,815)
Other investments(31,845)(27,576)
Investment in unconsolidated subsidiaries(17,674)(25,445)
Proceeds from sales or maturities of:
Fixed maturities, available-for-sale354,605 433,423 
Equity investments2,633 77,952 
Other investments67,411 22,333 
Net sales or (purchases) of fixed maturities, trading (2,586)(756)
Return of invested capital from unconsolidated subsidiaries23,971 33,284 
Net sales or maturities (purchases) of short-term investments31 (72,495)
Unsettled security transactions, net change4,312 (5,588)
Purchases of capital assets(3,345)(3,484)
Other2,661 (2,452)
Net cash provided (used) by investing activities137,335 (91,749)
Continued on the following page.
11

Nine Months Ended September 30
 20232022
Continued from the previous page.
Financing Activities
Repurchase of common stock(50,488)(3,252)
Dividends to shareholders(5,379)(8,080)
Capital contribution received from (return of capital to) external segregated portfolio cell participants50 (6,978)
Other(2,726)1,156 
Net cash provided (used) by financing activities(58,543)(17,154)
Increase (decrease) in cash and cash equivalents32,151 (102,230)
Cash and cash equivalents at beginning of period29,959 143,602 
Cash and cash equivalents at end of period$62,110 $41,372 
Significant Non-Cash Transactions
Dividends declared and not yet paid$ $2,698 
Operating ROU assets obtained in exchange for operating lease liabilities$ $3,133 
Increase (decrease) in fair value of contingent consideration issued in NORCAL acquisition$(5,500)$ 
See accompanying notes.
12

ProAssurance Corporation and Subsidiaries
Notes to Condensed Consolidated Financial Statements (Unaudited)
September 30, 2023

1. Basis of Presentation
The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of ProAssurance Corporation, its wholly owned subsidiaries and VIEs in which ProAssurance is the primary beneficiary (ProAssurance, PRA or the Company). See Note 11 for more information on ProAssurance's VIE interests. The financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation, consisting of normal recurring adjustments, have been included. ProAssurance’s results for the nine months ended September 30, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023. The accompanying Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Notes contained in ProAssurance’s December 31, 2022 report on Form 10-K.
Beginning in the third quarter of 2023, ProAssurance operates in four reportable segments as follows: Specialty P&C, Workers' Compensation Insurance, Segregated Portfolio Cell Reinsurance and Corporate. For more information on the Company's segment reporting, including the nature of products and services provided and financial information by segment, refer to Note 13.
Reclassifications
As a result of the third quarter 2023 segment reorganization, prior period segment information in Note 13 has been recast to conform to the Company's current segment reporting (see Note 13 for further information).
Accounting Policies
The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and disclosures related to these amounts at the date of the financial statements. The Company evaluates these estimates and assumptions on an ongoing basis based on current and historical developments, market conditions, industry trends and other information that the Company believes to be reasonable under the circumstances. The Company can make no assurance that actual results will conform to its estimates and assumptions; reported results of operations may be materially affected by changes in these estimates and assumptions.
Other than as disclosed below, the significant accounting policies followed by ProAssurance in making estimates that materially affect financial reporting are summarized in Note 1 of the Notes to Consolidated Financial Statements in ProAssurance’s December 31, 2022 report on Form 10-K.
Derivatives
ProAssurance records derivative instruments at fair value in the Condensed Consolidated Balance Sheets. ProAssurance accounts for the changes in fair value of derivatives depending on whether the derivative is designated as a hedging instrument and if so, the type of hedging relationship. For derivative instruments not designated as hedging instruments, ProAssurance recognizes the change in fair value of the derivative in earnings during the period of change. ProAssurance does not use derivative instruments for trading purposes.
For derivative financial instruments designed as cash flow hedges, ProAssurance formally documents all relationships between the hedging instruments and the hedged items as well as its risk-management objective and strategy for undertaking various hedged transactions. ProAssurance also formally assesses, both at the hedge's inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items. When it is determined that a derivative is not highly effective as a hedge or that it has ceased to be a highly effective hedge, ProAssurance discontinues hedge accounting prospectively.
13

ProAssurance Corporation and Subsidiaries
Notes to Condensed Consolidated Financial Statements (Unaudited)
September 30, 2023
As of September 30, 2023, ProAssurance uses Interest Rate Swaps that are designated and qualify as highly effective cash flow hedges to manage its exposure to variability in cash flows of forecasted interest payments attributable to variability in the selected base rates on borrowings under the amended Revolving Credit Agreement. Changes in the fair value of derivatives that are designated and qualify as highly effective cash flow hedges are recorded in AOCI, net of tax, and are reclassified into earnings when the hedged cash flows impact earnings. When the change in the fair value of a qualifying cash flow hedge is included in earnings, it is included in the same line item on the Condensed Consolidated Statement of Income and Comprehensive Income as the cash flows from the hedged item. The Company has elected not to offset fair value amounts recognized for the Interest Rate Swaps and fair value of the amounts recognized to reclaim cash collateral or the obligation to return cash collateral executed with counterparties under a master netting arrangement. The cash flows of derivatives used in hedging relationships are classified as either operating, investing, or financing cash flows based on the classification of the hedged item.
Accounting Changes Adopted
Reference Rate Reform - Deferral of LIBOR Sunset Date (ASU 2022-06)
Effective for fiscal years beginning after December 31, 2022 and interim periods within those fiscal years, the FASB amended guidance which defers the LIBOR transition date from December 31, 2022 to December 31, 2024. As of September 30, 2023, ProAssurance has no exposure to LIBOR. ProAssurance adopted the guidance beginning January 1, 2023, and adoption had no material effect on ProAssurance's results of operations, financial position or cash flows.
Presentation of Financial Statements, Income Statement—Reporting Comprehensive Income, Distinguishing Liabilities from Equity, Equity and Compensation—Stock Compensation (ASU 2023-03)
Effective immediately, the FASB amended guidance on July 14, 2023 to align various SEC paragraphs in the Codification to reflect the issuance of SEC Staff Accounting Bulletin No. 120, among other things. ProAssurance adopted the guidance beginning July 14, 2023, and adoption had no material effect on ProAssurance's results of operations, financial position or cash flows.
Accounting Changes Not Yet Adopted
Disclosure Improvements (ASU 2023-06)
In October 2023, the FASB amended guidance to clarify or improve disclosure and presentation requirements of a variety of topics, which will allow users to more easily compare entities subject to the SEC's existing disclosures with those entities that were not previously subject to the requirements and align the requirements in the Codification with the SEC's regulations. The effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X becomes effective, with early adoption prohibited. Adoption is not expected to have a material effect on ProAssurance's results of operations, financial position or cash flows.
Employee Retention Credit
In response to COVID-19, the CARES Act was signed into law on March 27, 2020 and contains several provisions for corporations, including the initial version of the ERC. In December 2020 and March 2021, the ERC was extended and expanded from 50% of qualified wages to 70%. The 2020 rules limited qualified wages to $10,000 per employee and applied to employers with 100 or fewer full-time employees in 2019. The rules were expanded in 2021 to raise the qualified wage limit to $10,000 per employee, per quarter. As an eligible employer, NORCAL filed a claim during the second quarter of 2023 for a payroll tax refund of approximately $3.8 million. The Company recorded the expected payroll tax refund as a component of operating expenses on the Condensed Consolidated Statement of Income and Comprehensive Income for the nine months ended September 30, 2023 and as a component of other assets on the Condensed Consolidated Balance Sheet as of September 30, 2023.

14

ProAssurance Corporation and Subsidiaries
Notes to Condensed Consolidated Financial Statements (Unaudited)
September 30, 2023

2. Fair Value Measurement
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A three level hierarchy has been established for valuing assets and liabilities based on how transparent (observable) the inputs are that are used to determine fair value, with the inputs considered most observable categorized as Level 1 and those that are the least observable categorized as Level 3. Hierarchy levels are defined as follows:
 Level 1:quoted (unadjusted) market prices in active markets for identical assets and liabilities. For ProAssurance, Level 1 inputs are generally quotes for securities actively traded in exchange or over-the-counter markets.
 Level 2:market data obtained from sources independent of the reporting entity (observable inputs). For ProAssurance, Level 2 inputs generally include quoted prices in markets that are not active, quoted prices for similar assets or liabilities, and results from pricing models that use observable inputs such as interest rates and yield curves that are generally available at commonly quoted intervals.
 Level 3:the reporting entity’s own assumptions about market participant assumptions based on the best information available in the circumstances (non-observable inputs). For ProAssurance, Level 3 inputs are used in situations where little or no Level 1 or 2 inputs are available or are inappropriate given the particular circumstances. Level 3 inputs include results from pricing models for which some or all of the inputs are not observable, discounted cash flow methodologies, single non-binding broker quotes and adjustments to externally quoted prices that are based on management judgment or estimation.
Fair values of assets measured at fair value on a recurring basis as of September 30, 2023 and December 31, 2022 are shown in the following tables. Where applicable, the tables also indicate the fair value hierarchy of the valuation techniques utilized to determine those fair values. For some assets, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. When this is the case, the asset is categorized based on the level of the most significant input to the fair value measurement. Assessments of the significance of a particular input to the fair value measurement require judgment and consideration of factors specific to the assets being valued. For more information on the valuation methodologies used regarding securities in the Level 2 and Level 3 categories, see Note 3 of the Notes to Consolidated Financial Statements in ProAssurance’s December 31, 2022 report on Form 10-K.
15

ProAssurance Corporation and Subsidiaries
Notes to Condensed Consolidated Financial Statements (Unaudited)
September 30, 2023
September 30, 2023
Fair Value Measurements UsingTotal
(In thousands)Level 1Level 2Level 3Fair Value
Assets:
Fixed maturities, available-for-sale
U.S. Treasury obligations$ $237,828 $ $237,828 
U.S. Government-sponsored enterprise obligations 18,871  18,871 
State and municipal bonds 436,268  436,268 
Corporate debt, multiple observable inputs 1,598,018  1,598,018 
Corporate debt, limited observable inputs  65,960 65,960 
Residential mortgage-backed securities 396,676 271 396,947 
Agency commercial mortgage-backed securities 8,652  8,652 
Other commercial mortgage-backed securities 185,809  185,809 
Other asset-backed securities 406,018 941 406,959 
Fixed maturities, trading 45,999  45,999 
Equity investments
Financial8,594 2,214 287 11,095 
Utilities/Energy845   845 
Industrial  4,946 4,946 
Bond funds109,907   109,907 
All other17,127   17,127 
Short-term investments184,853 62,541  247,394 
Other investments1,074 56,150 2,388 59,612 
Other assets 10,366  10,366 
Total assets categorized within the fair value hierarchy$322,400 $3,465,410 $74,793 3,862,603 
Assets carried at NAV, which approximates fair value and which are not categorized within the fair value hierarchy, reported as a part of:
Investment in unconsolidated subsidiaries264,681 
Total assets at fair value$4,127,284 
Liabilities:
Other liabilities$10,680 $ $9,500 $20,180 
Total liabilities categorized within the fair value hierarchy$10,680 $ $9,500 $20,180 
16

ProAssurance Corporation and Subsidiaries
Notes to Condensed Consolidated Financial Statements (Unaudited)
September 30, 2023
December 31, 2022
Fair Value Measurements UsingTotal
(In thousands)Level 1Level 2Level 3Fair Value
Assets:
Fixed maturities, available-for-sale
U.S. Treasury obligations$ $221,608 $ $221,608 
U.S. Government-sponsored enterprise obligations 19,934  19,934 
State and municipal bonds 439,450  439,450 
Corporate debt, multiple observable inputs 1,717,479  1,717,479 
Corporate debt, limited observable inputs  63,973 63,973 
Residential mortgage-backed securities 389,291 249 389,540 
Agency commercial mortgage-backed securities 9,704  9,704 
Other commercial mortgage-backed securities 194,090  194,090 
Other asset-backed securities 413,989 2,705 416,694 
Fixed maturities, trading 43,434  43,434 
Equity investments
Financial9,850 2,219 303 12,372 
Utilities/Energy854   854 
Industrial  2,500 2,500 
Bond funds112,136   112,136 
All other15,876   15,876 
Short-term investments181,937 63,376  245,313 
Other investments1,881 88,783 1,783 92,447