0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Changes in Capital (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Fair Value Measurement link:presentationLink link:calculationLink link:definitionLink 9952158 - 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Disclosure - Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Fair Value Measurement (Assets and Liabilities Measured at Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Fair Value Measurement (Quantitative Information Regarding Level 3 Valuations) (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Fair Value Measurement (Level 3 Assets and Liability) (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Fair Value Measurement (Investments in LLCs and Limited Partnerships) (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Fair Value Measurement (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Fair Value Measurement (Financial Instruments Not Measured at Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - 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Disclosure - Investments (Unconsolidated Subsidiaries) (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Investments (Equity in Earnings (Loss) of Unconsolidated Subsidiaries) (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Investments (Net Realized Investment Gains (Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Investments (Roll Forward of Cumulative Credit Losses Recorded in Earnings) (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Reserve for Losses and Loss Adjustment Expenses (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Reserve for Losses and Loss Adjustment Expenses (Schedule of Reserve for Losses and Loss Adjustment Expenses) (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - 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Disclosure - Earnings (Loss) Per Share (Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Earnings (Loss) Per Share (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Segment Information (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Segment Information (Financial Data by Segment) (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Segment Information (Gross Premiums Earned and Reconciliation to Net Premiums) (Details) link:presentationLink link:calculationLink link:definitionLink