3.19.3.a.u2 html 632 660 1 true 121 0 false 10 false false R1.htm 0001000 - Document - Cover Page Sheet http://www.oldrepublic.com/role/CoverPage Cover Page Cover 1 false false R2.htm 1001000 - Statement - Consolidated Balance Sheets Sheet http://www.oldrepublic.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 1001501 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.oldrepublic.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 1002000 - Statement - Consolidated Statements of Income Sheet http://www.oldrepublic.com/role/ConsolidatedStatementsOfIncome Consolidated Statements of Income Statements 4 false false R5.htm 1004000 - Statement - Consolidated Statements of Preferred Stock and Common Shareholders' Equity Sheet http://www.oldrepublic.com/role/ConsolidatedStatementsOfPreferredStockAndCommonShareholdersEquity Consolidated Statements of Preferred Stock and Common Shareholders' Equity Statements 5 false false R6.htm 1005000 - Statement - Consolidated Statements of Cash Flows Sheet http://www.oldrepublic.com/role/ConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 1006000 - Statement - Consolidated Statements of Comprehensive Income Statement Sheet http://www.oldrepublic.com/role/ConsolidatedStatementsOfComprehensiveIncomeStatement Consolidated Statements of Comprehensive Income Statement Statements 7 false false R8.htm 2101100 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 2103100 - Disclosure - Debt Sheet http://www.oldrepublic.com/role/Debt Debt Notes 9 false false R10.htm 2105100 - Disclosure - Shareholders' Equity Sheet http://www.oldrepublic.com/role/ShareholdersEquity Shareholders' Equity Notes 10 false false R11.htm 2108100 - Disclosure - Commitments and Contingent Liabilities Sheet http://www.oldrepublic.com/role/CommitmentsAndContingentLiabilities Commitments and Contingent Liabilities Notes 11 false false R12.htm 2109100 - Disclosure - Consolidated Quarterly Results - Unaudited Sheet http://www.oldrepublic.com/role/ConsolidatedQuarterlyResultsUnaudited Consolidated Quarterly Results - Unaudited Notes 12 false false R13.htm 2110100 - Disclosure - Information About Segments of Business Sheet http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusiness Information About Segments of Business Notes 13 false false R14.htm 2111100 - Disclosure - Transactions with Affiliates Sheet http://www.oldrepublic.com/role/TransactionsWithAffiliates Transactions with Affiliates Notes 14 false false R15.htm 2114100 - Schedule - Schedule I - Summary of Investments - Other Than Investments in Related Parties Sheet http://www.oldrepublic.com/role/ScheduleISummaryOfInvestmentsOtherThanInvestmentsInRelatedParties Schedule I - Summary of Investments - Other Than Investments in Related Parties Uncategorized 15 false false R16.htm 2115100 - Schedule - Schedule II - Condensed Financial Information of Registrant Sheet http://www.oldrepublic.com/role/ScheduleIiCondensedFinancialInformationOfRegistrant Schedule II - Condensed Financial Information of Registrant Cover 16 false false R17.htm 2116100 - Schedule - Schedule III - Supplementary Insurance Information Sheet http://www.oldrepublic.com/role/ScheduleIiiSupplementaryInsuranceInformation Schedule III - Supplementary Insurance Information Notes 17 false false R18.htm 2117100 - Schedule - Schedule IV - Reinsurance Sheet http://www.oldrepublic.com/role/ScheduleIvReinsurance Schedule IV - Reinsurance Uncategorized 18 false false R19.htm 2118100 - Schedule - Schedule V - Valuation and Qualifying Accounts Sheet http://www.oldrepublic.com/role/ScheduleVValuationAndQualifyingAccounts Schedule V - Valuation and Qualifying Accounts Cover 19 false false R20.htm 2119100 - Schedule - Schedule VI - Supplemental Information Concerning Property-Casualty Insurance Operations Sheet http://www.oldrepublic.com/role/ScheduleViSupplementalInformationConcerningPropertyCasualtyInsuranceOperations Schedule VI - Supplemental Information Concerning Property-Casualty Insurance Operations Notes 20 false false R21.htm 2201201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPolicies 21 false false R22.htm 2301302 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPolicies 22 false false R23.htm 2303301 - Disclosure - Debt (Tables) Sheet http://www.oldrepublic.com/role/DebtTables Debt (Tables) Tables http://www.oldrepublic.com/role/Debt 23 false false R24.htm 2308301 - Disclosure - Commitments and Contingent Liabilities (Tables) Sheet http://www.oldrepublic.com/role/CommitmentsAndContingentLiabilitiesTables Commitments and Contingent Liabilities (Tables) Tables http://www.oldrepublic.com/role/CommitmentsAndContingentLiabilities 24 false false R25.htm 2309301 - Disclosure - Consolidated Quarterly Results - Unaudited (Tables) Sheet http://www.oldrepublic.com/role/ConsolidatedQuarterlyResultsUnauditedTables Consolidated Quarterly Results - Unaudited (Tables) Tables http://www.oldrepublic.com/role/ConsolidatedQuarterlyResultsUnaudited 25 false false R26.htm 2310301 - Disclosure - Information About Segments of Business (Tables) Sheet http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusinessTables Information About Segments of Business (Tables) Tables http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusiness 26 false false R27.htm 2311301 - Disclosure - Transactions with Affiliates (Tables) Sheet http://www.oldrepublic.com/role/TransactionsWithAffiliatesTables Transactions with Affiliates (Tables) Tables http://www.oldrepublic.com/role/TransactionsWithAffiliates 27 false false R28.htm 2401403 - Disclosure - Summary of Significant Accounting Policies Accounting Principles (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesAccountingPrinciplesDetails Summary of Significant Accounting Policies Accounting Principles (Details) Details 28 false false R29.htm 2401404 - Disclosure - Summary of Significant Accounting Policies Investments (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesInvestmentsDetails Summary of Significant Accounting Policies Investments (Details) Details 29 false false R30.htm 2401405 - Disclosure - Summary of Significant Accounting Policies Revenue Recognition (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesRevenueRecognitionDetails Summary of Significant Accounting Policies Revenue Recognition (Details) Details 30 false false R31.htm 2401406 - Disclosure - Summary of Significant Accounting Policies Deferred Policy Acquisition Costs (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesDeferredPolicyAcquisitionCostsDetails Summary of Significant Accounting Policies Deferred Policy Acquisition Costs (Details) Details 31 false false R32.htm 2401407 - Disclosure - Summary of Significant Accounting Policies Unearned Premiums (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesUnearnedPremiumsDetails Summary of Significant Accounting Policies Unearned Premiums (Details) Details 32 false false R33.htm 2401408 - Disclosure - Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - General (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesLossesClaimsAndSettlementExpensesGeneralDetails Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - General (Details) Details 33 false false R34.htm 2401409 - Disclosure - Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - RFIG Run-off (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesLossesClaimsAndSettlementExpensesRfigRunOffDetails Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - RFIG Run-off (Details) Details 34 false false R35.htm 2401410 - Disclosure - Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesLossesClaimsAndSettlementExpensesConsolidatedDetails Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated (Details) Details 35 false false R36.htm 2401411 - Disclosure - Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated - Incurred and Paid Loss Development Tables (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesLossesClaimsAndSettlementExpensesConsolidatedIncurredAndPaidLossDevelopmentTablesDetails Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated - Incurred and Paid Loss Development Tables (Details) Details 36 false false R37.htm 2401412 - Disclosure - Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated - Reconciliation of Claims Development to Liability (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesLossesClaimsAndSettlementExpensesConsolidatedReconciliationOfClaimsDevelopmentToLiabilityDetails Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated - Reconciliation of Claims Development to Liability (Details) Details 37 false false R38.htm 2401413 - Disclosure - Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated - Historical Average Annual Payout of Incurred Claims (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesLossesClaimsAndSettlementExpensesConsolidatedHistoricalAverageAnnualPayoutOfIncurredClaimsDetails Summary of Significant Accounting Policies Losses, Claims and Settlement Expenses - Consolidated - Historical Average Annual Payout of Incurred Claims (Details) Details 38 false false R39.htm 2401414 - Disclosure - Summary of Significant Accounting Policies Income Taxes (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesIncomeTaxesDetails Summary of Significant Accounting Policies Income Taxes (Details) Details 39 false false R40.htm 2401415 - Disclosure - Summary of Significant Accounting Policies Property and Equipment (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails Summary of Significant Accounting Policies Property and Equipment (Details) Details 40 false false R41.htm 2401416 - Disclosure - Summary of Significant Accounting Policies Goodwill and Intangible Assets (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesGoodwillAndIntangibleAssetsDetails Summary of Significant Accounting Policies Goodwill and Intangible Assets (Details) Details 41 false false R42.htm 2401417 - Disclosure - Summary of Significant Accounting Policies Employee Benefit Plans (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesEmployeeBenefitPlansDetails Summary of Significant Accounting Policies Employee Benefit Plans (Details) Details 42 false false R43.htm 2401418 - Disclosure - Summary of Significant Accounting Policies Escrow Funds (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesEscrowFundsDetails Summary of Significant Accounting Policies Escrow Funds (Details) Details 43 false false R44.htm 2401419 - Disclosure - Summary of Significant Accounting Policies Earnings Per Share (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesEarningsPerShareDetails Summary of Significant Accounting Policies Earnings Per Share (Details) Details 44 false false R45.htm 2401420 - Disclosure - Summary of Significant Accounting Policies Stock Based Compensation (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails Summary of Significant Accounting Policies Stock Based Compensation (Details) Details 45 false false R46.htm 2401421 - Disclosure - Summary of Significant Accounting Policies Regulatory Matters (Details) Sheet http://www.oldrepublic.com/role/SummaryOfSignificantAccountingPoliciesRegulatoryMattersDetails Summary of Significant Accounting Policies Regulatory Matters (Details) Details 46 false false R47.htm 2403402 - Disclosure - Debt (Details) Sheet http://www.oldrepublic.com/role/DebtDetails Debt (Details) Details http://www.oldrepublic.com/role/DebtTables 47 false false R48.htm 2403403 - Disclosure - Debt Debt Financial Liabilities Disclosed, but not Carried, at Fair Value (Details) Sheet http://www.oldrepublic.com/role/DebtDebtFinancialLiabilitiesDisclosedButNotCarriedAtFairValueDetails Debt Debt Financial Liabilities Disclosed, but not Carried, at Fair Value (Details) Details 48 false false R49.htm 2405401 - Disclosure - Shareholders' Equity Preferred Stock (Details) Sheet http://www.oldrepublic.com/role/ShareholdersEquityPreferredStockDetails Shareholders' Equity Preferred Stock (Details) Details 49 false false R50.htm 2405402 - Disclosure - Shareholders' Equity Common Stock (Details) Sheet http://www.oldrepublic.com/role/ShareholdersEquityCommonStockDetails Shareholders' Equity Common Stock (Details) Details 50 false false R51.htm 2405403 - Disclosure - Shareholders' Equity Cash Dividend Restrictions (Details) Sheet http://www.oldrepublic.com/role/ShareholdersEquityCashDividendRestrictionsDetails Shareholders' Equity Cash Dividend Restrictions (Details) Details 51 false false R52.htm 2408402 - Disclosure - Commitments and Contingent Liabilities Reinsurance and Retention Limits (Details) Sheet http://www.oldrepublic.com/role/CommitmentsAndContingentLiabilitiesReinsuranceAndRetentionLimitsDetails Commitments and Contingent Liabilities Reinsurance and Retention Limits (Details) Details 52 false false R53.htm 2408403 - Disclosure - Commitments and Contingent Liabilities Textuals (Details) Sheet http://www.oldrepublic.com/role/CommitmentsAndContingentLiabilitiesTextualsDetails Commitments and Contingent Liabilities Textuals (Details) Details http://www.oldrepublic.com/role/CommitmentsAndContingentLiabilitiesTables 53 false false R54.htm 2409402 - Disclosure - Consolidated Quarterly Results - Unaudited (Details) Sheet http://www.oldrepublic.com/role/ConsolidatedQuarterlyResultsUnauditedDetails Consolidated Quarterly Results - Unaudited (Details) Details http://www.oldrepublic.com/role/ConsolidatedQuarterlyResultsUnauditedTables 54 false false R55.htm 2410402 - Disclosure - Information About Segments of Business Textuals (Details) Sheet http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusinessTextualsDetails Information About Segments of Business Textuals (Details) Details http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusinessTables 55 false false R56.htm 2410403 - Disclosure - Information About Segments of Business (Details) Sheet http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusinessDetails Information About Segments of Business (Details) Details http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusinessTables 56 false false R57.htm 2410404 - Disclosure - Information About Segments of Business Reconciliation of Assets from Segment to Consolidated (Details) Sheet http://www.oldrepublic.com/role/InformationAboutSegmentsOfBusinessReconciliationOfAssetsFromSegmentToConsolidatedDetails Information About Segments of Business Reconciliation of Assets from Segment to Consolidated (Details) Details 57 false false R58.htm 2411402 - Disclosure - Transactions with Affiliates (Details) Sheet http://www.oldrepublic.com/role/TransactionsWithAffiliatesDetails Transactions with Affiliates (Details) Details http://www.oldrepublic.com/role/TransactionsWithAffiliatesTables 58 false false R59.htm 2414401 - Schedule - Schedule I - Summary of Investments - Other Than Investments in Related Parties (Details) Sheet http://www.oldrepublic.com/role/ScheduleISummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesDetails Schedule I - Summary of Investments - Other Than Investments in Related Parties (Details) Details 59 false false R60.htm 2415401 - Schedule - Schedule II - Condensed Financial Information of Registrant Balance Sheets (Details) Sheet http://www.oldrepublic.com/role/ScheduleIiCondensedFinancialInformationOfRegistrantBalanceSheetsDetails Schedule II - Condensed Financial Information of Registrant Balance Sheets (Details) Details 60 false false R61.htm 2415402 - Schedule - Schedule II - Condensed Financial Information of Registrant Statements of Income (Details) Sheet http://www.oldrepublic.com/role/ScheduleIiCondensedFinancialInformationOfRegistrantStatementsOfIncomeDetails Schedule II - Condensed Financial Information of Registrant Statements of Income (Details) Details 61 false false R62.htm 2415403 - Schedule - Schedule II - Condensed Financial Information of Registrant Statements of Cash Flows (Details) Sheet http://www.oldrepublic.com/role/ScheduleIiCondensedFinancialInformationOfRegistrantStatementsOfCashFlowsDetails Schedule II - Condensed Financial Information of Registrant Statements of Cash Flows (Details) Details 62 false false R63.htm 2415404 - Schedule - Schedule II - Condensed Financial Information of Registrant Debt (Details) Sheet http://www.oldrepublic.com/role/ScheduleIiCondensedFinancialInformationOfRegistrantDebtDetails Schedule II - Condensed Financial Information of Registrant Debt (Details) Details 63 false false R64.htm 2416401 - Schedule - Schedule III - Supplementary Insurance Information (Details) Sheet http://www.oldrepublic.com/role/ScheduleIiiSupplementaryInsuranceInformationDetails Schedule III - Supplementary Insurance Information (Details) Details http://www.oldrepublic.com/role/ScheduleIiiSupplementaryInsuranceInformation 64 false false R65.htm 2417401 - Schedule - Schedule IV - Reinsurance (Details) Sheet http://www.oldrepublic.com/role/ScheduleIvReinsuranceDetails Schedule IV - Reinsurance (Details) Details 65 false false R66.htm 2418401 - Schedule - Schedule V - Valuation and Qualifying Accounts (Details) Sheet http://www.oldrepublic.com/role/ScheduleVValuationAndQualifyingAccountsDetails Schedule V - Valuation and Qualifying Accounts (Details) Details 66 false false R67.htm 2419401 - Schedule - Schedule VI - Supplemental Information Concerning Property-Casualty Insurance Operations (Details) Sheet http://www.oldrepublic.com/role/ScheduleViSupplementalInformationConcerningPropertyCasualtyInsuranceOperationsDetails Schedule VI - Supplemental Information Concerning Property-Casualty Insurance Operations (Details) Details http://www.oldrepublic.com/role/ScheduleViSupplementalInformationConcerningPropertyCasualtyInsuranceOperations 67 false false All Reports Book All Reports ori201910-k.htm ex212019.htm ex231consentletterfinal.htm ex242019.htm ex3112019ceosection302.htm ex3122019cfosection302.htm ex3212019ceosection906.htm ex3222019cfosection906.htm ex4hdescriptionofcommo.htm ori-20191231.xsd ori-20191231_cal.xml ori-20191231_def.xml ori-20191231_lab.xml ori-20191231_pre.xml peergroup.jpg http://fasb.org/us-gaap/2019-01-31 http://fasb.org/srt/2019-01-31 http://xbrl.sec.gov/dei/2019-01-31 true true