Assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] After five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Short-term investments and other, gross realized gains Short Term Investments And Other Gross Realized Gains Represents the gross profit realized on the sale of short term investment and other. Supplemental information Supplemental Cash Flow Information [Abstract] Reserve for losses and loss adjustment expenses Liability for Claims and Claims Adjustment Expense, Property Casualty Liability Bank loan participations: Bank Loan Participations [Abstract] Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net income (loss) Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Reserve For Losses And Loss Adjustment Expenses [Table] Reserve For Losses And Loss Adjustment Expenses [Table] A table or schedule providing information pertaining to reserve for losses and Loss adjustment expenses. Short-term investments and other, gross realized losses Short Term Investments And Other Gross Realized Losses Represents the gross loss realized on the sale of short term investment and other. Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Statistical Measurement [Domain] Statistical Measurement [Domain] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Total Amount (thousands) Dividends, Common Stock, Cash Security Exchange Name Security Exchange Name Total equity securities Equity securities Equity Securities, FV-NI, Current Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Earnings (loss) per common share: Earnings Per Share Reconciliation [Abstract] Dividends on Series A preferred shares Dividends, Preferred Stock Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table] Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table] Series A convertible preferred shares, outstanding (in shares) Temporary Equity, Shares Outstanding Entity Address, Country Entity Address, Country Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Investment, Name [Axis] Investment, Name [Axis] Segments [Axis] Segments [Axis] Number of shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Change in cash, cash equivalents, and restricted cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Entity File Number Entity File Number Specialty Admitted Insurance Specialty Admitted Insurance [Member] Represents information regarding specialty admitted insurance. Schedule of Gain (Loss) on Securities [Table] Schedule of Gain (Loss) on Securities [Table] Compensation expense under share incentive plans APIC, Share-based Payment Arrangement, Increase for Cost Recognition Schedule of Gross Unrealized Losses and Fair Value for Available-for-Sale Securities Debt Securities, Available-for-sale [Table Text Block] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Amortization of intangible assets Amortization of intangible assets Amortization of Intangible Assets Number of securities excluded from the calculations of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Limited partnerships Partnership Interest [Member] Sale of Stock [Axis] Sale of Stock [Axis] Subsequent Events [Abstract] Subsequent Events [Abstract] Private Placement Private Placement [Member] Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Business Acquisition [Axis] Business Acquisition [Axis] Title of Individual [Domain] Title of Individual [Domain] Preferred stock, dividend term Preferred Stock, Dividend Term Preferred Stock, Dividend Term Unrealized losses arising during the period, net of U.S. income taxes OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Maturities and calls – fixed maturity securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Tax on net unrealized gains (losses) OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Total gains or losses (realized/unrealized)-Included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Schedule of Gross Carrying Amounts for Indefinite-Lived Intangible Assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Award Type [Domain] Award Type [Domain] Local Phone Number Local Phone Number Credit Facility [Domain] Credit Facility [Domain] Assets Assets [Abstract] Schedule of Summary of Available-for-Sale Investments Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Subsegments [Axis] Subsegments [Axis] Preferred stock, discount rate, percentage Preferred Stock, Discount Rate, Percentage Preferred Stock, Discount Rate, Percentage Non-employee directors Non-employee Directors [Member] Non-employee Directors [Member] Preferred stock, dividend payment rate, variable spread Preferred Stock, Dividend Payment Rate, Variable Spread Preferred Stock, Dividend Payment Rate, Variable Spread Exercisable, end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number State and municipal US States and Political Subdivisions Debt Securities [Member] Schedule of Summary of Available-for-Sale Investments by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Indemnity Trust And Loss Fund Trust Indemnity Trust And Loss Fund Trust [Member] Indemnity Trust And Loss Fund Trust Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Issuance of common shares under equity incentive plans Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Required collateral, percentage Required Collateral, Percentage Required Collateral, Percentage Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease) [Abstract] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Beginning of period (in shares) End of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Retained (Deficit) Earnings Retained Earnings [Member] Other Operating Expenses [Abstract] Other Operating Expenses and Other Expenses [Abstract] Other Operating Expenses and Other Expenses [Abstract] BBB- or better Standard & Poor's, BBB- or Better Rating [Member] Standard & Poor's, BBB- or Better Rating [Member] Securities available-for-sale: Fixed maturity securities, available-for-sale: Debt Securities, Available-for-sale [Abstract] Contingent Liabilities Commitments and Contingencies Disclosure [Text Block] Dividends on Series A preferred shares Less: Dividends on Series A preferred shares Temporary Equity, Dividends, Adjustment Fixed maturity securities Debt Securities [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Gross fee income Fee Income Represents amount of fee income . Bank loan participations, at fair value Bank loan participations Fair Value, Option, Loans Held as Assets, Aggregate Fair Value Fair Value, Option, Loans Held as Assets, Aggregate Fair Value Ceded premiums payable Ceded Premiums Payable Cash distributions from LLCs Proceeds from Equity Method Investment, Distribution Dividend payable, record date Dividends Payable, Date of Record Fortitude Reinsurance Fortitude Reinsurance [Member] Fortitude Reinsurance Gain (Loss) on Securities [Line Items] Gain (Loss) on Securities [Line Items] Credit Rating, Standard & Poor's [Axis] Credit Rating, Standard & Poor's [Axis] Purchases Payment To Acquire Bank Loan Participations Represents payment to acquire Bank loan participations. Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Prior years Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] BERMUDA BERMUDA Equity securities, at fair value (cost: 2022 – $93,089; 2021 – $95,783) Equity Securities, FV-NI Development on prior year loss reserves Prior years Prior Year Claims and Claims Adjustment Expense Basic (in dollars per share) Earnings Per Share, Basic Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] U.S. Treasury securities and obligations guaranteed by the U.S. government US Treasury and Government [Member] Unvested, beginning of period (in shares) Unvested, end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Purchases – equity securities Payments to Acquire Equity Securities, FV-NI After one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Acquired Intangible Assets [Line Items] Acquired Intangible Assets [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Maximum number of shares available for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Reinsurance recoverables Reinsurance Recoverables, Gross Assets deposited for securing letters of credit Assets Deposited For Securing Letters Of Credit Represents amount of assets deposited for securing letters of credit. Preferred stock, dividend rate, percentage Preferred Stock, Dividend Rate, Percentage Reinsurance recoverable on unpaid losses, net Deduct: Loss reserves ceded in Retrocession Agreement Reinsurance Recoverable for Unpaid Claims and Claims Adjustments Liability for Claims and Claims Adjustment Expense [Abstract] Liability for Claims and Claims Adjustment Expense [Abstract] Cash equivalent collateral returned to trust Cash Equivalent Collateral Returned to Trust Cash Equivalent Collateral Returned to Trust Letter of credit 102.5 Million 2013 Facility [Member] 2013 Facility Series A convertible preferred shares (in dollars per share) Temporary Equity, Par or Stated Value Per Share Plan Name [Axis] Plan Name [Axis] Quoted Prices in Active Markets for Identical Assets Level 1 Fair Value, Inputs, Level 1 [Member] Other liabilities Other Liabilities Entity Small Business Entity Small Business Underwriting profit (loss) Underwriting Profit (Loss) Represents the amount related to underwriting profit (loss) during the period. Residential mortgage-backed Residential Mortgage Backed Fair Value Represents fair value of residential mortgage backed. Liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Total liabilities, Series A redeemable preferred shares, and shareholders’ equity Liabilities and Equity Bank holding companies Bank Holding Companies [Member] Name of the investment category. Premiums receivable and agents’ balances, net Premiums and Other Receivables, Net Scenario [Axis] Scenario [Axis] Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Additional paid-in capital Additional Paid in Capital Aleka Aleka [Member] Aleka Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] Investment Income [Table] Investment Income [Table] Schedule Of Acquired Intangible Assets [Table] Schedule Of Acquired Intangible Assets [Table] Represents the tabular information related to intangible assets acquired in the acquisition. Assets held in trust Assets Held-in-trust Operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Earnings (Loss) Per Share Earnings Per Share [Text Block] Other invested assets: Other Investments [Abstract] Available-for-sale fixed maturity securities and equity securities Securities (Assets) [Member] Expenses Operating Expenses [Abstract] Ownership percentage Equity Method Investment, Ownership Percentage Equity securities Net realized and unrealized gains (losses) on investments in equity securities Equity Securities, FV-NI, Gain (Loss) Entity Interactive Data Current Entity Interactive Data Current Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Minimum Minimum [Member] Fixed maturity securities, gross realized gains Debt Securities, Available-for-sale, Realized Gain Number of credit facilities Number of Credit Facilities Number of Credit Facilities Senior debt Long-term Line of Credit Unearned premiums Unearned Premiums Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Raiser Raiser [Member] Raiser [Member] Losses and loss adjustment expenses Policyholder Benefits and Claims Incurred, Net, Property, Casualty and Liability Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Total investments available-for-sale, Gross Unrealized Gains Aggregate net unrealized gain Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Other Operating Expenses and Other Expenses Other Operating Income and Expense [Text Block] After ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Short-term investments and other Short Term Investments And Other Gross Realized Gains (Losses) Short Term Investments And Other Gross Realized Gains (Losses) Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fixed maturity securities, 12 months or more, fair value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Amortization of policy acquisition costs Deferred Policy Acquisition Costs, Amortization Expense Percentage of outstanding shares Business Acquisition, Percentage of Voting Interests Acquired Senior Debt Debt Disclosure [Text Block] Exercisable, end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Significant Unobservable Inputs Level 3 Fair Value, Inputs, Level 3 [Member] Dividends on common shares Payments of Ordinary Dividends, Common Stock Other income and expenses Other Income And Expenses Represents other income and expenses. Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Equity securities Equity Securities [Member] Contingent Liabilities [Line Items] Contingent Liabilities [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Accounting Policies [Abstract] Accounting Policies [Abstract] Weighted-average remaining contractual life of options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Issuance costs Payments of Stock Issuance Costs Number of reportable segments Number of Reportable Segments Amount of letters of credit issued Letters of Credit Outstanding, Amount Document Transition Report Document Transition Report Common shares – 2022 and 2021: $0.0002 par value; 200,000,000 shares authorized; 37,448,314 and 37,373,066 shares issued and outstanding, respectively Common Stock, Value, Issued Weighted-average period of unrecognized share based compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Bank loan participations Net gain (loss) in bank loan participations Bank Loan Participations, Net Gain (Loss) Bank Loan Participations, realized and unrealized net gains (losses) Unvested, beginning of period (in dollars per share) Unvested, end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Commitments and contingent liabilities Commitments and Contingencies Subsequent Event [Table] Subsequent Event [Table] Accumulated other comprehensive (loss) income Accumulated Other Comprehensive Income (Loss), Net of Tax Cash dividend declared (in dollars per share) Dividends Payable, Amount Per Share Schedule of Carrying Value and Fair Value Fair Value, by Balance Sheet Grouping [Table Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Commercial mortgage and asset-backed Commercial Mortgage Backed Securities [Member] LPT Trust And Loss Fund Trust LPT Trust And Loss Fund Trust [Member] LPT Trust And Loss Fund Trust Other invested assets Total other invested assets Other Investments Commercial Auto Business Commercial Auto Business [Member] Commercial Auto Business Restricted stock unit dividend equivalents Restricted Stock Unit Dividend Equivalents Represents amount of dividend equivalent of RSU's. Associated Trust Agreement [Domain] Associated Trust Agreement [Domain] Associated Trust Agreement [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Legal Entity [Axis] Legal Entity [Axis] Cover [Abstract] Cover [Abstract] Class of Stock [Axis] Class of Stock [Axis] Stock options, restricted share units ("RSU's") and convertible preferred stock Stock Options, Restricted Stock Units And Convertible Preferred Stock [Member] Stock options and share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met. Schedule of Other Invested Assets Other Invested Asset [Table Text Block] Tabular disclosure of other invested assets consisting of private debt and equity investments. Temporary Equity, by Class of Stock [Table] Temporary Equity, by Class of Stock [Table] Number of insurance companies Number Of Insurance Companies This element represents number of insurance companies owned by the entity. Sale of stock, consideration received on transaction Sale of Stock, Consideration Received on Transaction Percentage of then-applicable conversion price threshold Preferred Stock, Convertible, Mandatory Conversion, Percentage Preferred Stock, Convertible, Mandatory Conversion, Percentage Schedule of Other Operating Expenses Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Reserve for losses and loss adjustment expenses net of reinsurance recoverables at beginning of period Reserve for losses and loss adjustment expenses net of reinsurance recoverables at end of period Liability for Unpaid Claims and Claims Adjustment Expense, Net Letters of credit facility, amount Letter Of Credit Facility Amount Represents amount of letter of credit facility. U.S. income taxes OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Schedule of Reconciliation of Securities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Series A redeemable preferred shares – 2022 and 2021: $0.00125 par value; 20,000,000 shares authorized; 150,000 and no shares issued and outstanding, respectively Temporary Equity, Carrying Amount, Attributable to Parent Entity [Domain] Entity [Domain] Dividend declared per common share (in dollars per share) Dividend declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Schedule of Dividends Dividends Declared [Table Text Block] Options Share-based Payment Arrangement, Option [Member] Liquidation preference (in dollars per share) Temporary Equity, Liquidation Preference Per Share Casualty Reinsurance Casualty Reinsurance [Member] Represents information regarding casualty reinsurance. Funds held Funds Held under Reinsurance Agreements, Liability Carrying Value Reported Value Measurement [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Document Quarterly Report Document Quarterly Report Number of notes issued Number Of Notes Issued Number Of Notes Issued Fixed maturity securities, less than 12 months, fair value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Common Shares Common stock Common Stock [Member] Deduct: Loss and loss adjustment expense payments net of reinsurance: Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Payments for reinsurance Payments for Reinsurance Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] After one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Total investments available-for-sale, Gross Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Fixed maturity securities Debt Securities, Available-for-sale, Realized Gain (Loss) Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Document Fiscal Year Focus Document Fiscal Year Focus Purchases Payments to Acquire Other Investments Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Additional Paid-in Capital Additional Paid-in Capital [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Equity securities: Short-term Investments [Abstract] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Purchases – fixed maturity securities Payments to Acquire Debt Securities, Available-for-sale Rate of interest Investment Interest Rate Rasier and Aleka Rasier And Aleka [Member] Rasier And Aleka Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Outstanding commitments to invest Commitment to Investment In Limited Partnership Commitment to Investment In Limited Partnership Maximum Maximum [Member] U.S. income taxes Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Sales Proceeds From Bank Loan Participations Represents cash inflow from sales of bank loan participations. Total liabilities Liabilities Contractual life (in years) Share Based Arrangement by Share Based Award Option Contractual Life Share Based Arrangement by Share Based Award Option Contractual Life Securities receivable or payable, net Payments for (Proceeds from) Unsettled Investments, Net Payments for (Proceeds from) Unsettled Investments, Net Award Type [Axis] Award Type [Axis] Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Add: Reinsurance recoverables on unpaid losses and loss adjustment expenses at end of period Reinsurance Recoverables on Unpaid Losses, Gross Total shareholders’ equity Balance Balance Stockholders' Equity Attributable to Parent Current year Current Year Claims and Claims Adjustment Expense Common stock, shares issued (in shares) Common Stock, Shares, Issued City Area Code City Area Code Letter Of Credit 30 Million Letter Of Credit 30 Million [Member] Letter Of Credit 30 Million James River Group, Inc. James River Group Inc [Member] Represents information regarding James River Group, Inc. Number of bank loan participations held Number Of Bank Loan Participations Held Number Of Bank Loan Participations Held Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Entity Address, City or Town Entity Address, City or Town Number of trading days Preferred Stock, Convertible, Number Of Trading Days Preferred Stock, Convertible, Number Of Trading Days Senior debt repayments Repayments of senior debt Repayments of Senior Debt Fixed maturity securities, gross realized losses Debt Securities, Available-for-sale, Realized Loss Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Common share repurchases Payments for Repurchase of Common Stock Shareholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Investment income Investment Income, Net Measurement Frequency [Domain] Measurement Frequency [Domain] Interest expense Interest expense Interest Expense Insurance licenses and authorities Licensing Agreements [Member] Cash provided by operating activities excluding reduction in collateral funds Net Cash Provided by (Used in) Operating Activities Excluding Change in Collateral Funds Net Cash Provided by (Used in) Operating Activities Excluding Change in Collateral Funds U.S. tax benefit on share based compensation expense Share-based Payment Arrangement, Expense, Tax Benefit Indemnity Trust Indemnity Trust [Member] Indemnity Trust Summary of Net Realized Gains and Losses on Investments Realized Gain (Loss) on Investments [Table Text Block] Retained deficit Retained Earnings (Accumulated Deficit) Maturities Proceeds From Maturities From Bank Loan Participations Represents cash inflow from maturities of bank loan participations. Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] RSUs RSUs Restricted Stock Units (RSUs) [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Entity Filer Category Entity Filer Category Business Acquisition [Line Items] Business Acquisition [Line Items] Net realized and unrealized (losses) gains on investments Total Gain (Loss) on Investments Unpaid principal balance Fair Value, Option, Loans Held as Assets, Aggregate Unpaid Principal Balance Fair Value, Option, Loans Held as Assets, Aggregate Unpaid Principal Balance Letter of credit 100 Million 2017 Facility 2017 Facility [Member] 2017 Facility Income Statement [Abstract] Income Statement [Abstract] Fair Value Estimate of Fair Value Measurement [Member] Entity Registrant Name Entity Registrant Name Asset Class [Domain] Asset Class [Domain] Preferred stock, convertible, conversion price Preferred Stock, Convertible, Conversion Price Reserve For Losses And Loss Adjustment Expenses [Line Items] Reserve For Losses And Loss Adjustment Expenses [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Short-term investments Short-term Investments Identifiable intangibles not subject to amortization Indefinite-lived Intangible Assets (Excluding Goodwill) Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Contingent Liabilities [Table] Contingent Liabilities [Table] Discloses information about contingent liabilities. Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Income tax expense (benefit) Income Tax Expense (Benefit) Amendment Flag Amendment Flag Unsecured Debt Unsecured Debt [Member] Equity Components [Axis] Equity Components [Axis] Entity Tax Identification Number Entity Tax Identification Number Below BBB- Standard & Poor's, Below BBB- Rating [Member] Standard & Poor's, Below BBB- Rating [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Investment Type [Axis] Investment Type [Axis] Document Fiscal Period Focus Document Fiscal Period Focus Sale of Stock [Domain] Sale of Stock [Domain] Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Add: Incurred losses and loss adjustment expenses net of reinsurance: Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract] Schedule of Summary of Company's Segment Results Schedule of Segment Reporting Information, by Segment [Table Text Block] Underwriting profit (loss) of operating segments Total underwriting profit (loss) of operating segments Underwriting Profit Loss Of Operating Segments This element represents amount of underwriting Profit (loss) of operating segments. Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Maturities, calls and paydowns Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Allowance for credit losses on reinsurance recoverables Reinsurance Recoverables on Unpaid Losses, Allowance Other underwriting expenses of the operating segments Other Underwriting Expense Equity Component [Domain] Equity Component [Domain] 2014 Director Plan Non Employee Director Incentive Plan 2014 [Member] Represents information regarding 2014 Non Employee Director Incentive Plan. Reserve for Losses and Loss Adjustment Expenses Liability For Claims And Claims Adjustment Expense [Text Block] The entire disclosure for the liability for claims and claims adjustment expense. Invested assets: Investments [Abstract] Statement [Line Items] Statement [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Other income Other Income Weighted- Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Reinsurance recoverable on paid losses Reinsurance Recoverable for Paid Claims and Claims Adjustments Total invested assets Investments Liabilities: Liabilities [Abstract] Vesting of RSUs Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Cash equivalent collateral trust arrangement Cash Equivalent Collateral Held In Trust Arrangement Cash Equivalent Collateral Held In Trust Arrangement Fixed maturity securities, available-for-sale, at fair value (amortized cost: 2022 – $1,726,202; 2021 – $1,643,865) Fixed maturity securities, available-for-sale Total investments available-for-sale, Fair Value Total fixed maturity securities, available-for-sale Debt Securities, Available-for-sale Counterparty Name [Domain] Counterparty Name [Domain] Total Intangible Assets, Gross Intangible Assets, Gross (Excluding Goodwill) Short-term investments, net Payments for (Proceeds from) Short-term Investments Debt Disclosure [Abstract] Debt Disclosure [Abstract] Broker relationships Broker Relationships [Member] Represents information related to broker relationships. Income (loss) before taxes Pre-tax income (loss) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Significant Other Observable Inputs Level 2 Fair Value, Inputs, Level 2 [Member] Total expenses Benefits, Losses and Expenses Loss Portfolio Transfer Loss Portfolio Transfer [Member] Loss Portfolio Transfer Fixed maturity securities, fair value Total fair value Debt Securities, Available-for-sale, Unrealized Loss Position Segment Reporting [Abstract] Segment Reporting [Abstract] Dilutive potential common shares (in dollars per share) Earnings Per Share, Dilutive Potential Common Shares Earnings Per Share, Dilutive Potential Common Shares Accounting Policies [Table] Accounting Policies [Table] Accounting Policies Fixed maturity securities, available-for-sale, at amortized cost Total fixed maturity securities, Cost or Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Life (Years) Finite-Lived Intangible Asset, Useful Life Temporary Equity [Abstract] Associated Trust Agreement [Axis] Associated Trust Agreement [Axis] Associated Trust Agreement Estimates and Assumptions Use of Estimates, Policy [Policy Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Schedule of Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Asset Class [Axis] Asset Class [Axis] Net unrealized losses, net of taxes of $(11,649) in 2022 and $(5,647) in 2021 Other comprehensive loss Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Schedule of Summary of Share Based Compensation Expense and Related Tax Benefit Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Forecast Forecast [Member] L PT Trust LPT Trust [Member] LPT Trust Title of 12(b) Security Title of 12(b) Security Total assets Segment assets Assets Investment, Name [Domain] Investment, Name [Domain] Plan Name [Domain] Plan Name [Domain] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Dividends payable, date to be paid Dividends Payable, Date to be Paid Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Geographical [Domain] Geographical [Domain] Title of Individual [Axis] Title of Individual [Axis] Net income (loss) available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Document Type Document Type Schedule of Summary of RSU Activity Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Equity securities, gross realized losses Equity Securities, FV-NI, Realized Loss Schedule of Reconciliation of Beginning and Ending Reserve Balances for Losses and Loss Adjustment Expenses Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] Net earned premiums Net earned premiums Premiums Earned, Net Net realized investment gains Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Prepaid reinsurance premiums Prepaid Reinsurance Premiums Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Convertible preferred stock, minimum term for conversion Preferred Stock, Convertible, Term Preferred Stock, Convertible, Term Equity securities, at cost Equity Securities, FV-NI, Cost Measurement Frequency [Axis] Measurement Frequency [Axis] Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Reclassification adjustment for investment gains realized in net income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Development on prior year loss reserves Development On Prior Year Loss Reserves [Abstract] Subsequent Event [Line Items] Subsequent Event [Line Items] Cost or Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Third-party Reinsureds Third-party Reinsureds [Member] Third-party Reinsureds [Member] Geographical [Axis] Geographical [Axis] Corporate and Other Corporate and Other [Member] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in dollars per share) Diluted (in dollars per share) Earnings Per Share, Diluted JRG Reinsurance Company Ltd JRG Reinsurance Company Ltd [Member] Represents reinsurance subsidiary of the entity. Segments [Domain] Segments [Domain] Per share price (in dollars per share) Sale of Stock, Price Per Share JRG Reinsurance Company, Ltd. Jrg Reinsurance Company Ltd [Member] Represents reinsurance subsidiary of the entity. Dilutive potential common shares (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Equity securities, gross realized gain Equity Securities, FV-NI, Realized Gain Residential mortgage-backed Residential Mortgage Backed Amortized Cost Represents Amortized Cost of Residential mortgage-backed securities. Subsequent Events Subsequent Events [Text Block] Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Series A convertible preferred shares, authorized (in shares) Temporary Equity, Shares Authorized Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Reinsurance, aggregate coverage limit Reinsurance, Aggregate Coverage Limit Reinsurance, Aggregate Coverage Limit Bank Loan Participations Loan Participations and Assignments [Member] Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Other comprehensive loss: Other Comprehensive Income (Loss), Net of Tax [Abstract] Other Comprehensive Income (Loss), Net of Tax [Abstract] Vesting period (in years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Ceded written premiums Ceded Premiums Written Less reclassification adjustment: OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax [Abstract] Schedule of Components of Comprehensive Income (Loss) Comprehensive Income (Loss) [Table Text Block] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Change in net unearned premiums (Increase) Decrease in Unearned Premiums, Net Amortization of discount Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Amortization of Discount Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Amortization of Discount Other operating expenses Total Other Cost and Expense, Operating Corporate Corporate Debt Securities [Member] Fair Value Measurements Fair Value Disclosures [Text Block] Subsegments [Domain] Subsegments [Domain] Dividends on common shares Dividends, Common Stock Schedule of Assets Measured at Fair Value on a Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Other assets Other Assets Convertible Preferred Stock Convertible Preferred Stock [Member] Dividends payable Dividends Payable Common stock, shares outstanding (in shares) Balance (in shares) Balance (in shares) Common Stock, Shares, Outstanding Transfers in to Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Summary of Net Unrealized Gains and Losses on Investments Unrealized Gain (Loss) on Investments [Table Text Block] Financial Instruments [Domain] Financial Instruments [Domain] After five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Commercial mortgage and asset-backed Commercial Mortgage And Asset Backed Amortized Cost Represents amortized cost of commercial mortgage and asset-backed. Revenues Revenues [Abstract] Document Period End Date Document Period End Date Vesting of RSUs (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Bank loan participations, gross realized losses Bank Loan Participations, Gross Realized Loss Represents the gross realized losses on bank loan participations. Entity Central Index Key Entity Central Index Key Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Investments Investment [Text Block] Investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Changes in fair values of short-term investments and other Short Term Investments And Other, Changes in Fair Value Short Term Investments And Other, Changes in Fair Value Accrued investment income Accrued Investment Income Receivable Changes in fair values of bank loan participations Bank Loan Participations, Changes in Fair Value Bank Loan Participations, Changes in Fair Value Excess and Surplus Lines Excess And Surplus Lines [Member] Represents information regarding excess and surplus lines segment. Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Table] One year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Net investment income Net investment income Net Investment Income Losses due to credit-related impairments Bank Loan Participations, Increase (Decrease) in Fair Value, Credit-Related Impairment Bank Loan Participations, Increase (Decrease) in Fair Value, Credit-Related Impairment Series A convertible preferred shares, issued (in shares) Temporary Equity, Shares Issued Percentage of available for sale securities Percentage Of Available For Sale Debt Securities Represents percentage of available for sale debt securities. Loss Fund Trust Loss Fund Trust [Member] Loss Fund Trust Reinsurance premium Reinsurance Premium Reinsurance Premium Residential mortgage-backed Residential Mortgage Backed Securities [Member] Restricted cash equivalents Restricted cash equivalents at beginning of period Restricted cash equivalents at end of period Restricted Cash Equivalents Debt Instrument [Line Items] Debt Instrument [Line Items] Total gains or losses (realized/unrealized)-Included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Trading Symbol Trading Symbol Earnings Per Share [Abstract] Earnings Per Share [Abstract] Payables to reinsurers Reinsurance Payable Changes in fair values of equity securities Equity Securities, FV-NI, Unrealized Gain (Loss) Fixed maturity securities, gross unrealized losses Gross unrealized losses Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Total revenues Segment revenues Revenues Issuance of Series A preferred shares Proceeds from Issuance of Preferred Stock and Preference Stock Trademarks Trademarks [Member] Sales – fixed maturity securities Proceeds from Sale of Debt Securities, Available-for-sale Beginning of period (in dollars per share) End of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Number of issuers Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions Commercial mortgage and asset-backed Commercial Mortgage And Asset Backed Fair Value Represents fair value of commercial mortgage and asset backed. Series A Preferred Shares Temporary Equity Disclosure [Text Block] Temporary Equity Disclosure Share based compensation expense Share-based Payment Arrangement, Expense Reinsurance Transaction [Axis] Reinsurance Transaction [Axis] Reinsurance Transaction Weighted-average remaining contractual life of options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Entity Current Reporting Status Entity Current Reporting Status Net income (loss) per common share: Earnings Per Share, Basic and Diluted [Abstract] Net written premiums Premiums Written, Net Weighted- Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Effective U.S. federal income tax expense (benefit) rate Effective Income Tax Rate Reconciliation, Percent Convertible preferred stock, shares issued upon conversion Convertible Preferred Stock, Shares Issued upon Conversion Accounting Policies [Line Items] Accounting Policies [Line Items] Accounting Policies Investments [Domain] Investments [Domain] Counterparty Name [Axis] Counterparty Name [Axis] Renewable energy LLCs Renewable Energy Llcs [Member] Name of the investment category. Cash, cash equivalents, and restricted cash equivalents at beginning of period Cash, cash equivalents, and restricted cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Number of trading days immediately preceding Mandatory Conversion Preferred Stock, Dividend, Trading Days Preferred Stock, Dividend, Trading Days Number of shares issued during period (in shares) Sale of Stock, Number of Shares Issued in Transaction UNITED STATES UNITED STATES Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Gross Carrying Amount Finite-Lived Intangible Assets, Gross Identifiable intangible assets subject to amortization Finite-Lived Intangible Assets, Net [Abstract] Bank loan participations, gross realized gains Bank Loan Participations, Gross Realized Gain Represents the gross realized gains on bank loan participations. Schedule of Gross Carrying Amounts and Accumulated Amortization for Finite-Lived Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Income Tax Expense Income Tax, Policy [Policy Text Block] Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items] Unrealized losses arising during the period, before U.S. income taxes OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax External Credit Rating, Standard & Poor's [Domain] External Credit Rating, Standard & Poor's [Domain] Reserve for losses and loss adjustment expenses gross of reinsurance recoverables on unpaid losses and loss adjustment expenses at end of period Liability for Claims and Claims Adjustment Expense Entity Address, Postal Zip Code Entity Address, Postal Zip Code Exercise of stock options (in shares) Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Beginning balance Ending balance Asset value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Recurring basis Fair Value, Recurring Fair Value, Recurring [Member] Weighted-average common shares outstanding: Weighted Average Number of Shares Outstanding, Basic [Abstract] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Schedule of Summary of Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Capital Stock and Equity Awards Stockholders' Equity Note Disclosure [Text Block] Measurement Basis [Axis] Measurement Basis [Axis] Losses and loss adjustment expenses Total incurred losses and loss and adjustment expenses Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims Accrued expenses Accrued Liabilities Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Investment in variable interest entities Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Short-term investments Other Short-term Investments Credit Facility [Axis] Credit Facility [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Entity Address, Address Line One Entity Address, Address Line One Renewable energy notes receivable Renewable Energy Bridge Financing Notes [Member] Name of the investment category. Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Entity Address, Address Line Two Entity Address, Address Line Two Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Schedule of Underwriting Profit of Operating Segments by Individual Segment and Reconciliation to Consolidated Income Before Taxes Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Entity Address, Address Line Three Entity Address, Address Line Three Other operating expenses of the Corporate and Other segment Other operating expenses of the Corporate and Other segment Other Operating Expenses Of Corporate And Other Segment Represents Other operating expenses of the Corporate and Other segment. Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Return of capital Proceeds From Other Invested Asset Return Of Capital Represents cash inflow from other invested asset return of capital. Entity Shell Company Entity Shell Company Deferred policy acquisition costs Deferred Policy Acquisition Cost Class of Stock [Domain] Class of Stock [Domain] Temporary Equity [Line Items] Temporary Equity [Line Items] Junior subordinated debt Junior subordinated debt Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Line of credit (up to) Line of Credit Facility, Maximum Borrowing Capacity 2014 LTIP Long Term Incentive Plan 2014 [Member] Represents information regarding Long Term Incentive Plan 2014. Number of equity securities held Number Of Equity Securities Held Number Of Equity Securities Held Gross written premiums Premiums Written, Gross Investment in LLC Investment In Llc [Member] Represents investment in LLC`s. Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Sales – equity securities Proceeds from Sale of Equity Securities, FV-NI Current Fiscal Year End Date Current Fiscal Year End Date Statement [Table] Statement [Table] Change in restricted cash equivalents Increase (Decrease) In Restricted Cash Equivalents Increase (Decrease) In Restricted Cash Equivalents Total loss and loss adjustment expense payments Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Unrecognized share based compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Statistical Measurement [Axis] Statistical Measurement [Axis] Crediting rate on funds withheld Crediting Rate On Funds Withheld Crediting Rate On Funds Withheld Subsequent Event Subsequent Event [Member] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Preferred stock Preferred Stock [Member] Goodwill Segment goodwill Goodwill After ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fixed maturity securities, less than 12 months, gross unrealized losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Other expenses Other Nonoperating Expense Scenario [Domain] Scenario [Domain] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Reinsurance Transaction [Domain] Reinsurance Transaction [Domain] Reinsurance Transaction [Domain] One year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Investment in private subordinated notes Other invested assets – notes receivable Notes Receivable Represents carrying value of notes receivable as on reporting date. Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Other expenses Other Expenses Net Investment Income [Line Items] Net Investment Income [Line Items] Fixed maturity securities, 12 months or more, gross unrealized losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Current year Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year