75000 - Document - Document & Entity Information
link:presentationLink
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link:definitionLink
75010 - Statement - Consolidated Balance Sheets
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link:calculationLink
link:definitionLink
75020 - Statement - Consolidated Balance Sheets (Parentheticals)
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75030 - Statement - Consolidated Statements of Comprehensive Income (Loss)
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link:definitionLink
75040 - Statement - Consolidated Statements of Comprehensive Income (Loss) 2
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link:definitionLink
75050 - Statement - Consolidated Statements of Stockholders' Equity (Deficit)
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75060 - Statement - Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical)
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link:definitionLink
75070 - Statement - Consolidated Statements of Cash Flows
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link:definitionLink
75080 - Disclosure - Organization, Consolidation and Presentation
link:presentationLink
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link:definitionLink
995455 - Disclosure - Cybersecurity Risk Management, Strategy, and Governance
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995465 - Disclosure - Significant Accounting Policies
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995475 - Disclosure - Disaggregation of Relevant Expense Captions
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995485 - Disclosure - Discontinued Operations
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995495 - Disclosure - Investments
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995505 - Disclosure - Earnings per Share
link:presentationLink
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995515 - Disclosure - Deferred Policy Acquisition Costs
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995525 - Disclosure - Property and Equipment, Net
link:presentationLink
link:calculationLink
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995535 - Disclosure - Goodwill and Intangible Assets
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link:definitionLink
995545 - Disclosure - Reinsurance
link:presentationLink
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995555 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expenses
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link:definitionLink
995565 - Disclosure - Long-Term Debt
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link:definitionLink
995575 - Disclosure - Commitments and Contingencies
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995585 - Disclosure - Allowance For Expected Credit Losses
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link:definitionLink
995595 - Disclosure - Income Taxes
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995605 - Disclosure - Statutory Accounting and Regulation
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995615 - Disclosure - Related Party Transactions
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995625 - Disclosure - Employee Benefit Plan
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995635 - Disclosure - Accumulated Other Comprehensive Income (Loss)
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995645 - Disclosure - Stockholders' Equity
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995655 - Disclosure - Stock-Based Compensation
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link:definitionLink
995665 - Disclosure - Subsequent Events
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link:calculationLink
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995675 - Disclosure - Schedule I. Summary of Investments
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link:definitionLink
995685 - Disclosure - Schedule II. Condensed Financial Information of Registrant
link:presentationLink
link:calculationLink
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995695 - Disclosure - Schedule IV. REINSURANCE
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995705 - Disclosure - Schedule V. Valuation and Qualifying Accounts
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995715 - Disclosure - Schedule VI. Supplemental Information Concerning Consolidated Property and Casualty Insurance Operations
link:presentationLink
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995725 - Disclosure - Significant Accounting Policies (Policies)
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995735 - Disclosure - Disaggregation of Relevant Expense Captions (Tables)
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995745 - Disclosure - Discontinued Operations (Tables)
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995755 - Disclosure - Investments (Tables)
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995765 - Disclosure - Earnings per Share (Tables)
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995775 - Disclosure - Deferred Policy Acquisition Costs (Tables)
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995785 - Disclosure - Property and Equipment, Net (Tables)
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995795 - Disclosure - Goodwill and Intangible Assets (Tables)
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995805 - Disclosure - Reinsurance (Tables)
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995815 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense (Tables)
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995825 - Disclosure - Long-Term Debt (Tables)
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995835 - Disclosure - Commitments and Contingencies (Tables)
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995845 - Disclosure - Allowance For Expected Credit Losses (Tables)
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995855 - Disclosure - Income Taxes (Tables)
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995865 - Disclosure - Statutory Accounting and Regulation (Tables)
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995875 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)
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link:definitionLink
995885 - Disclosure - Stockholders' Equity (Tables)
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995895 - Disclosure - Stock-Based Compensation (Tables)
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link:calculationLink
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995905 - Disclosure - Organization, Consolidation and Presentation (Details)
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995915 - Disclosure - Significant Accounting Policies - Additional Information (Details)
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995925 - Disclosure - Disaggregation of Relevant Expense Captions - Schedule of Other Operating Cost and Expense, by Component (Details)
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995935 - Disclosure - Disaggregation of Relevant Expense Captions - Schedule of Other Operating Cost and Expense, by Component (Parenthetical) (Details)
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link:calculationLink
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995945 - Disclosure - Discontinued Operations - Additional Information (Details)
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995955 - Disclosure - Discontinued Operations - Schedule of Results of Ops IIC and UPC (Details)
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995965 - Disclosure - Discontinued Operations - Schedule of Discontinued Operations - Results of Ops IIC (Parenthetical) (Details)
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995975 - Disclosure - Discontinued Operations - Schedule of Discontinued Operations - Assets & Liabilities IIC and UPC (Details)
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995985 - Disclosure - Investments - Schedule of Available-for-sale Securities Reconciliation (Details)
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link:calculationLink
link:definitionLink
995995 - Disclosure - Investments - Equity Securities, FV-NI (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996005 - Disclosure - Investments - Schedule of Realized Gain (Loss) (Details)
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996015 - Disclosure - Investments - Investments Classified by Contractual Maturity Date (Details)
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996025 - Disclosure - Investments - Investment Income (Details)
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link:calculationLink
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996035 - Disclosure - Investments - Additional Information (Details)
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link:calculationLink
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996045 - Disclosure - Investments - Schedule of Unrealized Loss on Investments (Details)
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996055 - Disclosure - Investments - Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis (Details)
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996065 - Disclosure - Investments - Schedule of Fair Value of Financial Instruments with Unobservable Inputs (Details)
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996075 - Disclosure - Investments - Schedule of Other Investments (Details)
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996085 - Disclosure - Investments - Restricted Cash (Details)
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link:calculationLink
link:definitionLink
996095 - Disclosure - Earnings per Share - Schedule of Earnings per Share (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996105 - Disclosure - Deferred Policy Acquisition Costs - Schedule of Deferred Policy Acquisition Costs (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996115 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996125 - Disclosure - Property and Equipment, Net (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996135 - Disclosure - Goodwill and Intangible Assets - Summary of Intangible Assets Excluding Goodwill (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996145 - Disclosure - Goodwill and Intangible Assets - Summary of Intangible Assets Subject to Amortization and Not Fully Amortized (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996155 - Disclosure - Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets, Estimated Amortization Expense (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996165 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996175 - Disclosure - Reinsurance - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996175 - Disclosure - Reinsurance - Additional Information (Details) [Default]
link:presentationLink
link:calculationLink
link:definitionLink
996185 - Disclosure - Reinsurance - Summary of Premium Received and Capital at Risk (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996185 - Disclosure - Reinsurance - Summary of Premium Received and Capital at Risk (Details) [Default]
link:presentationLink
link:calculationLink
link:definitionLink
996195 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996195 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Details) [Default]
link:presentationLink
link:calculationLink
link:definitionLink
996205 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Parenthetical) (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996205 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Parenthetical) (Details) [Default]
link:presentationLink
link:calculationLink
link:definitionLink
996215 - Disclosure - Reinsurance Recoverables (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996225 - Disclosure - Reinsurance - Effects of Reinsurance on Premiums (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996235 - Disclosure - Reinsurance - Schedule of Catastrophe Losses by Event Type (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996245 - Disclosure - Reinsurance - Effects of Reinsurance on Losses (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996255 - Disclosure - Reinsurance - Effects of Reinsurance on Losses (Details) 2
link:presentationLink
link:calculationLink
link:definitionLink
996265 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expenses - Claims Development (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996275 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Short-duration Insurance Contracts, Schedule of Historical Claims Duration (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996285 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996295 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Schedule of Liability for Unpaid Claims and Claims Adjustment Expense (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996305 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Schedule of Liability for Unpaid Claims and Claims Adjustment Expense (Details) 2
link:presentationLink
link:calculationLink
link:definitionLink
996315 - Disclosure - Long-Term Debt - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996325 - Disclosure - Long-term debt - Long-Term Debt, Fiscal Year Maturity (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996335 - Disclosure - Schedule of Long-Term Debt (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996345 - Disclosure - Long-Term Debt - Debt Issuance Cost Rollforward (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996355 - Disclosure - Commitments and Contingencies - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996365 - Disclosure - Commitments and Contingencies - Summary of Operating and Lease Asset and Liability Balances (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996375 - Disclosure - Commitments and Contingencies - Summary of Lease Expenses (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996385 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Gross Lease Payments Relating to the Non-Cancellable Operating Lease Agreements (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996395 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Gross Lease Payments Relating to the Non-Cancellable Operating Lease Agreements (Details) 2
link:presentationLink
link:calculationLink
link:definitionLink
996405 - Disclosure - Commitments and Contingencies - Summary of Weighted Average Remaining Lease Term and Discount Rate Related to Operating Leases (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996415 - Disclosure - Commitments and Contingencies - Lease Liabilities Cash Activity (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996425 - Disclosure - Allowance For Expected Credit Losses (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996435 - Disclosure - Income Taxes - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996445 - Disclosure - Income Taxes - Provision for Income Taxes (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996455 - Disclosure - Income Taxes - Tax Expense Reconciliation (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996465 - Disclosure - Income Taxes - Tax Expense Reconciliation (Parenthetical) (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996475 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996485 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets (Details) 2
link:presentationLink
link:calculationLink
link:definitionLink
996495 - Disclosure - Income Taxes - Unrecognized Tax Benefit (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996505 - Disclosure - Statutory Accounting and Regulation - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996515 - Disclosure - Statutory Accounting and Regulation - Schedule of Statutory Accounting and Regulation (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996525 - Disclosure - Related Party Transactions (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996535 - Disclosure - Employee Benefit Plan - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996545 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996555 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details) 2
link:presentationLink
link:calculationLink
link:definitionLink
996565 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details) 3
link:presentationLink
link:calculationLink
link:definitionLink
996575 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details) 4
link:presentationLink
link:calculationLink
link:definitionLink
996585 - Disclosure - Stockholders' Equity (Deficit) - Dividends (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996595 - Disclosure - Stockholders' Equity (Deficit) - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996605 - Disclosure - Stock-Based Compensation - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996615 - Disclosure - Stock-Based Compensation - Stock-based Compensation Expense (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996625 - Disclosure - Stock-Based Compensation - Stock-based Compensation Expense (Parenthetical) (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996635 - Disclosure - Stock-Based Compensation - Non-Vested Common Stock Grants (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996645 - Disclosure - Stock-Based Compensation - Weighted-Average Assumptions - Stock Options (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996655 - Disclosure - Stock-Based Compensation - Non-Vested Stock Options (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996665 - Disclosure - Subsequent Events - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996675 - Disclosure - Other Income and Expenses (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996685 - Schedule - Schedule I - Summary of Investments (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996695 - Schedule - Schedule II - Condensed Balance Sheets (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996705 - Schedule - Schedule II - Condensed Statements of Comprehensive Income (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996715 - Schedule - Schedule II - Condensed Statements of Cash Flows (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996725 - Schedule - Schedule IV - Reinsurance (Details)
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link:calculationLink
link:definitionLink
996735 - Schedule - Schedule V - Valuation and Qualifying Accounts (Details)
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link:calculationLink
link:definitionLink
996745 - Disclosure - Schedule VI - Supplemental Information Concerning Consolidated Property and Casualty Insurance Operations (Details)
link:presentationLink
link:calculationLink
link:definitionLink
Equity Securities, FV-NI
Equity securities
Equity Securities, FV-NI, Total
Change in Accounting Principle, Type [Domain]
Change in Accounting Principle, Type [Domain]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Less:Weighted Average Grant Date Fair Value Vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Less: Weighted Average Exercise Prices,Options Forfeited
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from sale of property, equipment, and cap software
Federal Operating Loss Carryforwards, Permanent
Federal Operating Loss Carry forwards Permanent
Federal operating loss carry forwards permanent.
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
Reinsurance recoverable on unpaid claims
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments, Total
Reinsurance recoverable for unpaid claims and claims adjustments, Ending balance
Reinsurance recoverable on unpaid losses and loss adjustment expenses
Reinsurance recoverable for unpaid claims and claims adjustments, Beginning balance
Pretax income, Foreign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Ceded Losses and LAE Incurreds
Ceded losses and LAE incurreds.
Ceded losses and LAE incurred
Ceded losses and LAE incurred
Income from continuing operations, net of tax
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total
Proceeds from Sale and Maturity of Other Investments
Proceeds from sales, maturities and repayments of other investments
Concentration Risk Type [Axis]
Financing Receivable, Allowance for Credit Loss, Writeoff
Financing Receivable, Allowance for Credit Loss, Writeoff
Short-Duration Insurance Contracts, Accident Year [Axis]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Percentage of Flood Premiums Ceded
Percentage of Flood Premiums Ceded
Flood premiums ceded (percentage)
Effective Income Tax Rate Reconciliation, at Foreign Statutory Income Tax Rate, Percent
Effective income tax rate reconciliation, at foreign statutory income tax rate, percent.
Foreign tax rate, Percent
Preferred Stock, Shares Issued
Preferred stock, issued shares
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Liability for unpaid claims and claims adjustment expense, claims paid, current year
Impact of Deconsolidation of Discontinued Operations - Tax
Impact of Deconsolidation of Discontinued Operations - Tax
Impact of Deconsolidation of Discontinued Operations - Tax
Ceded losses incurred decreased
Ceded Losses Incurred Decreased
Ceded losses incurred decreased.
Increase (Decrease) in Accounts Payable
Accounts payable and accrued expenses
Increase (Decrease) in Accounts Payable, Total
Accounts payable and accrued expenses
Revision of Prior Period [Axis]
Revision of Prior Period [Axis]
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One
Due in one year or less
Financing Receivable Portfolio Segment [Axis]
Schedule of Long-Term Debt Instruments [Table Text Block]
Schedule of Long-term Debt Instruments
Plan Name [Axis]
Plan Name [Axis]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
Entity Current Reporting Status
Entity Current Reporting Status
Deferred Policy Acquisition Costs, Amortization Expense
Policy acquisition costs
Florida and Louisiana [Member]
Florida and Louisiana.
Florida and Louisiana
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Percent of Total
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Percent of Total
Total
Fair Value, Inputs, Level 2 [Member]
Level 2
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Common Stock, Shares Authorized
Common stock, authorized shares
Fixed asset and intangible asset disposals
Property, Plant and Equipment, Transfers and Changes
Finite-Lived Intangible Asset, Expected Amortization, Year Four
2029
Reinstatement Premium - All Other Perils
Reinstatement Premium - All Other Perils
Reinstatement Premium - All Other Perils
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Liability for unpaid claims and claims adjustment expense, incurred claims
Liability for unpaid claims and claims adjustment expense, incurred claims
Earnings Per Share, Basic [Abstract]
Basic
Investments
Investment, Policy [Policy Text Block]
Product and Service [Axis]
Document Fiscal Period Focus
Document Fiscal Period Focus
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Debt Instrument, Interest Rate, Stated Percentage
Interest rate (percentage)
Accounting Standards Update 2023-09 [Member]
Accounting Standards Update 2023-09
Entity Shell Company
Entity Shell Company
Intercompany Payable
Intercompany payable.
Intercompany payable
Dividends, Common Stock, Cash
Aggregate amount of dividends
Cash dividends on common stock
Percentage of disposal group discontinued operation
Percentage of disposal group discontinued operation.
Percenatge of deductible to the extent
Percenatge of deductible to the extent.
Percentage of deductible to the extent
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
Disaggregation of Relevant Expense Captions
Additional Financial Information Disclosure [Text Block]
Short-Term Investments [Member]
Short-term Investments
Segment Reporting, Policy [Policy Text Block]
Segment Reporting
Cash and Cash Equivalents, at Carrying Value
Cash and Cash Equivalents
Cash and Cash Equivalent, Total
Cash and cash equivalents
Discontinued Operations [Member]
Discontinued Operations
Direct Unearned Premiums, Net
Direct unearned premiums, net.
Direct unearned premiums
Schedule of Maturities of Long-Term Debt [Table Text Block]
Schedule of Maturities of Long-term Debt
Condensed Financial Information Disclosure [Abstract]
Short-Duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table]
Other Corporate Bonds [Member]
Corporate Securities
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Common Stock, Shares, Issued
Common stock, issued shares
Total Lease Future Payments
Total Lease Future Payments
Total undiscounted future minimum lease payments
Total undiscounted future minimum lease payments
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
Cybersecurity Risk Board of Directors Oversight [Text Block]
Short-Duration Insurance Contract, Accident Year 2021 [Member]
Short-Duration Insurance Contract, Accident Year 2021
Statement [Table]
Statement [Table]
Total Credit Loss Allowance Expenses (Reversal)
Total credit loss allowance expenses reversal.
Total Provision for (reversal of) expected credit losses
Leasehold Improvement Disposal
Leasehold Improvement Disposal
Leasehold Improvement Disposal
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted average grant date fair value
Amount Shown in Consolidated Balance Sheet
Investment Owned, Balance, Principal Amount
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price
Outstanding (Weight-Average Exercise)
Weighted Average Exercise Prices,Options Outstanding
Weighted Average Exercise Prices, Options Outstanding
Statement [Line Items]
Statement [Line Items]
Employee [Member]
Employee [Member]
Employee
Debt Securities, Trading, and Equity Securities, FV-NI
Debt Securities, Trading, and Equity Securities, FV-NI
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Less: Weighted Average Exercise Prices,Options Expired
Entity Filer Category
Filer Category
Payments to Acquire Other Investments
Purchases of other investments
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Reclassification adjustment for net realized gains, Net-of-Tax Amount
Reclassification adjustment for net realized gains, Net-of-Tax Amount
Liabilities and Equity
Total Liabilities and Stockholders' Equity
Vehicles [Member]
Vehicles
Premiums
Premiums Receivable, Basis of Accounting, Policy [Policy Text Block]
Loss on sale of subsidiary
Gain (Loss) on Disposition of Stock in Subsidiary
Debt Instrument [Line Items]
Debt Instrument
Financing Lease Liability Activity [Abstract]
Financing Lease Liability Activity [Abstract]
Financing Lease Liability Activity [Abstract]
Total Lease Future Payments Year 3
Total Lease Future Payments Year 3
2028
Long-Term Debt, Maturity, Year Three
2028
Total Credit Loss Allowance Expenses
Total Credit Loss Allowance Expenses
Total Credit Loss Allowance Expenses
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset [Axis]
Summary of Investment Holdings [Line Items]
Short-Duration Insurance Contracts, Historical Claims Duration, Year 10
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten
Impact of deconsolidation of former entity, pre-tax
Impact of deconsolidation of former entity, pre-tax
Impact of deconsolidation of discontinued operations, Pre-Tax Amount
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
Decrease in Valuation Allowance
Change in valuation allowance
Change in valuation allowance
Unearned Premiums, Net
Unearned premiums, net.
Net unearned premiums
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Trade Names [Member]
Trade Names
Goodwill Acquired, Disposed Of Or Impaired During Period
Goodwill acquired, disposed of or impaired during period.
Goodwill acquired, disposed of or impaired during period
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Other investments
Other Security Investments [Member]
Percentage of corporate charitable overall contribution deduction on taxable income
Percentage of corporate charitable overall contribution deduction on taxable income.
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture
Stock compensation, Shares
Increase (Decrease) in Liability for Claims and Claims Adjustment Expense Reserve
Unpaid losses and loss adjustment expenses
Finite-Lived Intangible Assets, Remaining Amortization Period
Weighted-average remaining amortization period (in years)
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Valuation Allowance
Valuation allowance
Valuation allowance
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
US federal statutory tax rate, Percent
Subsequent Event [Line Items]
Subsequent Event
Cybersecurity Risk Management Third Party Engaged [Flag]
Documents Incorporated by Reference
Documents Incorporated by Reference [Text Block]
Reinsurance Disclosures [Abstract]
Reinsurance Disclosures [Abstract]
Goodwill
Goodwill
Effective Income Tax Rate Reconciliation, Percent
Reported income tax expense, Percent
Income Tax Jurisdiction [Axis]
Public Utility, Equities [Member]
Public Utilities
Geographical [Domain]
Significant Accounting Policies [Line Items]
Significant accounting policies.
Asset-Backed Securities [Member]
Asset-backed Securities
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Numerator
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10
Due after ten years
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Defined Contribution Plan, Employer Matching Contribution, Percent
Gross unearned premiums
Gross unearned premiums
Unearned Premiums, Gross
Unearned premiums, gross.
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Schedule V. Valuation and Qualifying Accounts
Journey Insurance
Journey Insurance [Member]
Journey Insurance
Increase Decrease In Intercompany Payable
Increase decrease in intercompany payable.
Intercompany payable
Effective Income Tax Rate Reconciliation Outside Basis In Subsidiary Amount
Effective income tax rate reconciliation outside basis In subsidiary amount.
Unrealized gain on outside basis of subsidiary
Debt Issuance Costs, Net
Debt Issuance Costs, Net
Debt Issuance Costs, Net, Total
Balance at January 1
Balance at December 31
Fair Value Measurements, Nonrecurring, Financial Instruments
Fair value measurements, nonrecurring, financial instruments.
Financial instruments measured on non-recurring basis
Deferred Tax Liabilities, Investments
Investments
Total Lease Future Payments Thereafter
Total Lease Future Payments Thereafter
Thereafter
Significant Accounting Policies [Text Block]
Significant Accounting Policies
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment
Deferred acquisitions costs
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost
Debt Instsrument Leverage Ratio
Debt instsrument leverage ratio.
Finite-Lived Intangible Asset, Useful Life
Capitalized software cost useful life
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Other Assets
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Premium Written
Net Premiums Written
Vesting [Domain]
Vesting [Domain]
Asset & Liability - Headquarter Lease
Asset & Liability - Headquarter Lease
Asset & Liability - Headquarter Lease
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross
Number of Stock Options Granted
Number of stock options granted during period
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value, Percent of Total
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value, Percent of Total
Due after five years through ten years
Cybersecurity Risk Management, Strategy, and Governance [Table]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of Earnings Per Share
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Charged to Costs and Expenses
Reinsurance [Text Block]
Reinsurance
Goodwill - Commercial Lines
Goodwill - Commercial Lines
Goodwill - Commercial Lines
Equity Securities [Member]
Equity Securities
Reinsurance, Excess Retention, Amount Reinsured, Per Event
Occurrence limit
Reinsurance, excess retention, amount reinsured, per event
Investments Classified by Contractual Maturity Date [Table Text Block]
Investments Classified by Contractual Maturity Date
Earnings Per Share, Basic
Earnings available to ACIC common stockholders per share, Basic
Total
Leased Vehicle Disposal
Leased Vehicle Disposal
Leased Vehicle Disposal
Retirement Benefits [Text Block]
Employee Benefit Plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Number of Stock Options, Ending Balance
Number of Stock Options Outstanding
Number of Stock Options Outstanding
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
Schedule of Available-for-sale Securities Reconciliation
Catastrophe Aggregate Excess of Loss
Catastrophe Aggregate Excess of Loss [Member]
Catastrophe Aggregate Excess of Loss
Debt Issuance Costs
Debt, Policy [Policy Text Block]
Paid related to:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Reinsurance Accounting Policy [Policy Text Block]
Reinsurance
BB&T Term Note Payable [Member]
BB&T Term Note Payable [Member]
BB&T Term Note Payable
[Line Items] for Number of Wholly-Owned Subsidiaries [Table]
Number of Wholly-Owned Subsidiaries [Line Items]
Number of Wholly-Owned Subsidiaries
Assumed unpaid losses and LAE
Net Assumed Unpaid Losses and LAE
Net assumed unpaid losses and LAE.
Proceeds from Sale of Equity Securities, FV-NI
Proceeds from sales, maturities and repayments of equity securities
Unearned premiums
Deferred Tax Asset Unearned Premiums
Deferred tax asset unearned premiums.
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Increase (Decrease) in Prepaid Reinsurance Premiums
Ceded unearned premiums
Cash, Uninsured Amount
Cash, Uninsured Amount
Capitalized Software Disposal
Capitalized Software Disposal
Capitalized Software Disposal
Percentage of Singe Occurrence Exceeding Protection Purchased
Percentage of singe occurrence exceeding protection purchased.
Percentage of singe occurrence exceeding protection purchased
Federal
Domestic Tax Jurisdiction [Member]
Weighted Average Number of Shares Outstanding, Basic and Diluted [Abstract]
Weighted Average Number of Shares Outstanding, Basic and Diluted [Abstract]
Weighted average shares outstanding
Deductions
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value
Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale
Proceeds from sales, maturities and repayments of fixed maturities
Parent Company [Member]
Parent
Effective Income Tax Rate Reconciliation [Table]
Accounting Standards Update [Axis]
Accounting Standards Update [Axis]
All Other Perils Excess of Loss
All Other Perils Excess of Loss [Member]
All Other Perils Excess of Loss
Payments outstanding
Payments outstanding
Payments Outstanding
Consolidation Items [Domain]
Consolidation Items [Domain]
AmRisc Fees and Commission [Member]
AmRisc Fees and Commission [Member]
AmRisc Fees and Commission
Equity, Attributable to Parent [Abstract]
Stockholders' Equity
Entity Small Business
Entity Small Business
External Credit Rating by Grouping [Axis]
Retained Earnings (Accumulated Deficit)
Retained earnings (deficit)
Retained Earnings (Accumulated Deficit), Total
Retained earnings
Assumed Unearned Premiums, Net
Assumed unearned premiums, net.
Assumed unearned premiums
Payments to Acquire Equity Securities, FV-NI
Purchases of equity securities
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]
Equity Securities Fair Value
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount
US tax on foreign insurance income
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount, Total
Geographic Concentration Risk
Geographic Concentration Risk [Member]
Entity Well-known Seasoned Issuer
State Operating Loss Carry forwards No Expiration
State operating loss carry forwards no expiration.
Program provides sufficient coverage probability rate
Program Provides Sufficient Coverage Probability Rate
Program provides sufficient coverage probability rate.
Reinsurance, Reinsured Risk, Percentage
Cession Rate
Reserves for Unpaid Losses and LAE
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Reserve for Unpaid Claim and Claim Adjustment Expense
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Less: Aggregate Intrinsic Value,Options Exercised
Property, Liability and Casualty Insurance Product Line [Member]
Property and Casualty Insurance
Cost, Depreciation and Amortization
Cost, Depreciation and Amortization
Cost, Depreciation and Amortization, Total
Depreciation and amortization
Property and Casualty, Commercial Insurance [Member]
Property and Casualty Insurance
Commercial Property Insurance
Share-Based Payment Arrangement [Text Block]
Stock-Based Compensation
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated Amortization, Debt Issuance Costs
Amortization
Dividends
Payments of Dividends
Payments of Dividends
Payments of Dividends, Total
Dividends
Discontinued Operations - Assets & Liabilities UPC
Discontinued Operations - Assets & Liabilities UPC [Table Text Block]
Schedule of Discontinued Operations - Assets & Liabilities UPC
Leases [Abstract]
Leases [Abstract]
Amortization
Deferred Policy Acquisition Costs, Period Increase (Decrease)
Deferred Policy Acquisition Costs, Period Increase (Decrease), Total
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Effect of dilutive securities
Catastrophic Event [Axis]
Catastrophic Event [Axis]
Amendment Flag
Amendment Flag
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax
Change in net unrealized gains on investments
Change in net unrealized losses on investments, Pre-Tax Amount
Deferred Policy Acquisition Costs (DPAC)
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Deferred Policy Acquisition Cost
Product and Service [Domain]
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
Schedule of Other Operating Cost and Expense, by Component
System Disposals
System Disposals
System Disposals
Short-Duration Insurance Contracts, Historical Claims Duration, Year Seven
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
US federal statutory tax rate
Short-Duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table Text Block]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability
Earnings Per Share, Policy [Policy Text Block]
Earnings Per Share (EPS)
Liabilities and Equity [Abstract]
LIABILITIES AND STOCKHOLDERS' EQUITY
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Net Cash Provided by (Used in) Operating Activities
Net cash provided by (used in) operating activities
Net cash provided by (used in) operating activities
Increase (Decrease) in Operating Lease Liability
Operating lease liability
Deferred Tax Asset Out side Basis In Subsidiary
Deferred tax asset out side basis in subsidiary.
Outside basis in subsidiary
Unrecognized Tax Benefit [Table]
Unrecognized tax benefit.
Common Stock [Member]
Common Stock
Other common stocks
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value, Percent of Total
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value, Percent of Total
Due after ten years
Policyholder Benefits and Claims Incurred, Net
Losses and loss adjustment expenses
Policyholder Benefits and Claims Incurred, Net, Total
Cybersecurity Risk Role of Management [Text Block]
2026
Long-Term Debt, Maturity, Year One
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Granted (Weighted-Average Exercise)
Weighted Average Exercise Prices,Options Granted
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total
Less: accumulated depreciation and amortization
Catastrophe Event Type [Axis]
Catastrophe Event Type [Axis]
Catastrophe Event Type [Axis]
Debt Securities, Available-for-Sale [Line Items]
Schedule of Available-for-sale Securities
Debt Instrument, Interest Rate, Effective Percentage
Debt Instrument, Interest Rate, Effective Percentage
Entity Address, Address Line One
Entity Address, Address Line One
Deferred Tax Liabilities, Gross
Total deferred tax liabilities
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
Insured Long Term Debt Project Demand Decrease
Insured long term debt project demand decrease.
Insured long term debt project demand decrease
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Accumulated Depreciation, Buildings Disposed of
Accumulated Depreciation, Buildings Disposed of
Accumulated Depreciation, Buildings Disposed of
Earnings Per Share [Abstract]
Earnings available to ACIC common stockholders per share
Income Tax, Policy [Policy Text Block]
Income Taxes
Loss Contingency Accrual
Loss Contingency Accrual
Reinsurance Recoverable, Credit Loss Expense (Reversal)
Reinsurance Recoverable, Provision for (reversal of) expected credit losses
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flows Information
Disposition Of Former Subsidiary
Disposition of former subsidiary.
Disposition of former subsidiary
Goodwill and Intangible Assets Disclosure [Text Block]
Goodwill and Intangible Assets
Impact of deconsolidation of former entity, tax impact
Impact of deconsolidation of former entity, tax impact
Impact of deconsolidation of discontinued operations, Tax (Expense) Benefit
Short-Duration Insurance Contracts, Accident Year [Domain]
Investment Type [Axis]
Investment Type [Axis]
UPC Insurance
UPC Insurance [Member]
UPC Insurance
Operating Lease, Right-of-Use Asset
Operating lease assets
Deferred Tax Assets, Gross
Total deferred tax assets
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
Payments to Acquire Debt Securities, Available-for-Sale
Purchases of investments available-for-sale
Purchases of fixed maturities
Document Type
Document Type
(Increase) Decrease in Unearned Premiums, Net
Premiums Assumed from Other Companie
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Schedule Of Incurred And Paid Claims And Claims Adjustment Expense [Table Text Block]
Schedule Of Incurred and Paid Claims and Claims Adjustment Expense.
Schedule of Incurred and Paid Claims and Claims Adjustment Expense
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Entity Central Index Key
Central Index Key
Non-Deductible Goodwill
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Non-Deductible Goodwill
Effective income tax rate reconciliation, nondeductible expense, non-deductible goodwill.
ASSETS
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Investment Income, Investment Expense
Investment expenses
Investments, Debt and Equity Securities [Abstract]
Investments, Debt and Equity Securities [Abstract]
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect
Increase (decrease) in cash and cash equivalents
Increase (decrease) in cash, cash equivalents and restricted cash, including cash classified as assets held for sale
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Operating Activities [Axis]
Operating Activities [Axis]
Accrued Investment Income Receivable
Accrued Investment Income
Accrued investment income
Percentage of share acquired
Percentage of share acquired
Percentage of share acquired.
Provision Benefit for Federal Income Tax Expense
Provision benefit for federal income tax expense..
Provision for Federal income tax expense
Provision for Federal income tax expense
Provision for Federal income tax expense
Common Stock, Par or Stated Value Per Share
Common stock, par value
Accounting Standards Update [Domain]
Accounting Standards Update [Domain]
Direct Premiums Earned
Direct premiums earned
Direct Premium Written
Liabilities [Abstract]
Liabilities
Goodwill [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term (years), Options Outstanding
Increase (Decrease) in Other Operating Liabilities
Other liabilities
Debt Securities, Available-for-Sale, Amortized Cost
Cost or adjusted/amortized cost
Cost or adjusted/amortized cost
Fixed maturities, cost
Liability for Catastrophe Claims [Table]
Liability for Catastrophe Claims [Table]
Debt Securities, Available-for-Sale
Total
Fair Value
Fixed maturities, available-for-sale
Fixed maturities, available-for-sale, at fair value
Parent [Member]
Parent
Document Financial Statement Error Correction [Flag]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Less: Number of Stock Options Exercised
Number of Additional States in which Entity is Licensed
Number of Additional States in which Entity is Licensed
Additional Licensed States
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Condensed Cash Flow Statements, Captions [Line Items]
Short-Duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net
Family Security Insurance
Family Security Insurance [Member]
Family Security Insurance
State and Local Income Tax Expense (Benefit), Continuing Operations
Provision for State income tax expense
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]
Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis
Stock Issued During Period, Value, Restricted Stock Award, Gross
Stock compensation
Current Fiscal Year End Date
Current Fiscal Year End Date
Available-for-sale Securities, Debt Maturities, Without Single Maturity Date, Fair Value, Percent of Total
Available-for-sale Securities, Debt Maturities, Without Single Maturity Date, Fair Value, Percent of Total
Asset and mortgage backed securities
Schedule of Long-Term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Percentage of corporate charitable contribution deduction on taxable income
Percentage of corporate charitable contribution deduction on taxable income.
Error Correction, Type [Axis]
Error Correction, Type [Axis]
Weighted average remaining expense period
Weighted average remaining expense period
Weighted average remaining expense period
Assumed Premiums Earned
Assumed premiums earned
Premiums Assumed from Other Companies
Qualified Wages Per Employee
Qualified wages per employee.
Qualified wages per employee
Ceded Premiums Earned
Ceded premiums earned
Ceded premiums earned
Premiums Ceded to Other Companies
Restricted Cash and Cash Equivalents [Axis]
Restricted Cash and Cash Equivalents [Axis]
Advertising Cost [Policy Text Block]
Advertising Costs
Customer Relationships [Member]
Customer Relationships
Premium Collected
Reinsurance Premium Received
Reinsurance premium received.
Entity Address, State or Province
Entity Address, State or Province
Accumulated Depreciation - Disposed Furniture
Accumulated Depreciation - Disposed Furniture
Accumulated Depreciation - Disposed Furniture
Investment in subsidiaries
Payments to Acquire Interest in Subsidiaries and Affiliates
Payments to Acquire Interest in Subsidiaries and Affiliates, Total
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Outstanding shares
Number of Restricted Shares Outstanding
Number of Restricted Shares Outstanding
Internal Use Software, Policy [Policy Text Block]
Capitalized Software
Program provides sufficient coverage period
Program Provide Sufficient Coverage Period
Program provides sufficient coverage period.
Percentage of bonus depreciation for qualified property acquired
Percentage of Bonus Depreciation for Qualified Property Acquired
Percentage of bonus depreciation for qualified property acquired.
Short-Duration Insurance Contracts, Accident Year 2015 [Member]
Short-Duration Insurance Contract, Accident Year 2015
Preferred Stock, Shares Outstanding
Preferred stock, outstanding shares
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Unrealized Gain
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Discontinued Operations
Low-Tax Jurisdiction Percentage
Low-tax jurisdiction percentage.
Low-tax jurisdiction percenatge
Number of Reportable Segment
Number of reportable segment.
Number of reportable segment
Geographical [Axis]
Discontinued Operations, Policy [Policy Text Block]
Discontinued Operations
State Operating Loss Carry forwards Subject To Expiration
State operating loss carry forwards subject to expiration.
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Amortization of Deferred Policy Acquisition Cost
Amortization of DPAC, Net
Other General and Administrative Expense
Other General and Administrative Expense
Other general and administrative
[Domain] for Catastrophe Event Type [Axis]
Catastrophe Event Type [Domain]
Catastrophe Event Type [Domain]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
State and local income tax, net of federal income tax effect
Other permanent items
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount
Professional Fees
Professional Fees
Professional services
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Policyholder Liabilities
Tax-related discount on loss reserve
Tax Credit Carryforward, Valuation Allowance
Tax Credit Carryforward, Valuation Allowance
Schedule of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
AmRisc
AmRisc, LLC [Member]
AmRisc, LLC.
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Debt Securities, Trading, and Equity Securities, FV-NI
LOUISIANA
Louisiana
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense
Other Comprehensive Income (Loss), Net of Tax [Abstract]
OTHER COMPREHENSIVE INCOME:
Reinsurance Recoverable [Axis]
Reinsurance Recoverable [Axis]
Reinsurance Recoverable [Axis]
Increase (Decrease) in Deferred Income Taxes
Deferred income taxes, net
Income (Loss) from Continuing Operations, Per Basic Share
Continuing operations
Long-Term Debt, Fair Value
Long-term Debt, Fair Value
Subsequent Event [Member]
Subsequent Event
Operating Loss Carryforwards, Fully Expiration Year
Operating loss carryforwards, fully expiration year.
Proceeds From Sale Of Former Subsidiary
Proceeds from sale of former subsidiary.
Net proceeds from sale of former subsidiary
Net proceeds from sale of former subsidiary
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Abstract]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized
Additional shares authorized for issuance
Short-Duration Insurance Contracts, Accident Year 2016 [Member]
'Short-Duration Insurance Contract, Accident Year 2016
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period
Less: Number of Stock Options Expired
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Aggregate Intrinsic Value,Options Vested
Operating Loss Carryforwards, Begin Expiration Year
Operating loss carryforwards, begin expiration year.
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]
Intangible Assets
Share-Based Payment Arrangement, Expense, after Tax
Post-Tax Expense
Proceeds from Sale of Debt Securities, Available-for-Sale
Proceeds from sales of investments available-for-sale
Share-Based Payment Arrangement, Option, Exercise Price Range [Table]
Share-based Payment Arrangement, Option, Exercise Price Range [Table]
State and Local Jurisdiction [Member]
State and Local Jurisdiction
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Customer [Domain]
Provision for income taxes
Reported income tax provision
Income Tax Expense (Benefit), Continuing Operations, Discontinued Operations
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments
Partnership unfunded commitments
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Treasury Stock, Common, Shares
Treasury stock
Goodwill, Impairment Loss
Goodwill, Impairment Loss
Goodwill impairment
Cash and Cash Equivalents [Domain]
Cash and Cash Equivalents [Domain]
Reinsurance Effect on Written Premiums, Earned Premiums and Losses [Table Text Block]
Reinsurance Effect on Written Premiums, Earned Premiums and Losses
Effects of Reinsurance on Premiums
Preferred Stock, Value, Issued
Preferred stock, $0.0001 par value; 1,000,000 shares authorized; none issued or outstanding
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract]
Incurred related to:
Disposal Groups, Including Discontinued Operations [Table Text Block]
Schedule of Discontinued Operations Income Statement and Balance Sheet
Debt Instrument, Maturity Date
Debt Instrument, Maturity Date
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost
Asset and mortgage backed securities
Minimum [Member]
Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value Granted
Financial Instrument [Axis]
Financial Instrument [Axis]
Gain on Building Disposal
Gain on Building Disposal
Gain on Building Disposal
Short-duration Insurance Contracts, Historical Claims Duration, Year Five
Short-Duration Insurance Contracts, Historical Claims Duration, Year Five
Credit Loss [Abstract]
Credit Loss [Abstract]
Other Long-Term Investments
Other investments
Increase (Decrease) in Reinsurance Recoverable
Reinsurance recoverable on paid and unpaid losses
AmRisc ceded premiums written [Member]
AmRisc ceded premiums written [Member]
AmRisc ceded premiums written
Amortization of Intangible Assets
Amortization of intangible assets
Intangible asset amortization
Deferred Tax Asset, Debt Securities, Available-for-Sale, Unrealized Loss
Unrealized loss
Fair Value, Inputs, Level 3 [Member]
Level 3
Prepaid Reinsurance Premiums
Prepaid Reinsurance Premiums
Ceded uneared premiums
Net losses and LAE incurred
Net Losses and LAE Incurred
Net losses and LAE incurred.
Number of Wholly-Owned Subsidiaries [Table]
Number of Wholly-Owned Subsidiaries [Table]
Number of Wholly-Owned Subsidiaries [Table]
Fixed assets
Deferred Tax Liabilities, Property, Plant and Equipment
Unrealized Gain (Loss) on Investments
Unrealized Gain (Loss) on Investments
Net unrealized gains on equity securities
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates
Kroll Bond Rating Agency, LLC If Announced Upgrade Of Rating [Member]
Kroll Bond Rating Agency, LLC if announced upgrade of rating.
Related Party Transactions [Abstract]
Related Party Transactions [Abstract]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
Schedule of Unrealized Loss on Investments
Sublease Income
Sublease Income
Other Income
Other revenue
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
LIABILITIES
Commitments and Contingencies
Commitments and Contingencies (Note 12)
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Liability for unpaid claims and claims adjustment expense, claims paid
Liability for unpaid claims and claims adjustment expense, claims paid
Property and Casualty, Personal Insurance [Member]
Property and Casualty, Personal Insurance Product Line
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
Net decrease (increase)
Net decrease (increase)
Reinsurance Effect on Unearned Premiums
Reinsurance effect on unearned premiums.
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, 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, Ending Balance
Weighted Average Grant Date Fair Value Outstanding
Weighted Average Grant Date Fair Value Outstanding
Schedule of External Quota Share Agreements
Schedule Of External Quota Share Agreements [Table Text Block]
Schedule of external quota share agreements.
Total Credit Loss Allowance Writeoffs
Total Credit Loss Allowance Writeoffs
Total Credit Loss Allowance Writeoffs
Equity Securities without Readily Determinable Fair Value [Line Items]
Other Investments
Condensed Income Statements, Captions [Line Items]
Accounts Receivable, Credit Loss Expense (Reversal)
Provision for uncollectable premiums/over and short
Provision for uncollectable premiums
This amount represents premiums earned from direct customers and premiums earned on policies assumed from other insurance entities.
Gross Premiums Earned, Property and Casualty
Gross premiums earned
Gross premiums earned
Total Lease Future Payments Year 2
Total Lease Future Payments Year 2
2027
Operating Lease, Liability
Operating lease liabilities
Operating lease liability
Operating Lease, Liability, Total
Auditor Firm ID
Increase (Decrease) in Premiums Receivable
Premiums receivable
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine
Short-Duration Insurance Contracts, Historical Claims Duration, Year Nine
Concentration Risk Benchmark [Axis]
Income Taxes Paid (Refunded)
Income taxes paid (refunded).
State income taxes paid (refunded)
Long-Term Debt, Maturity, Year Two
2027
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis, Percent of Total
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis, Percent of Total
Due after ten years
Continuing Operations [Member]
Continuing Operations
Total pre-allowance deferred tax assets
Deferred Tax Assets Gross Pre Allowance
Deferred tax assets gross pre allowance.
Liability for Claims and Claims Adjustment Expense
Unpaid losses and loss adjustment expenses
Liability for claims and claims adjustment expense, Beginning balance
Liability for claims and claims adjustment expense, Ending balance
Unpaid losses and loss adjustment expenses
Number of Majority Owned Subsidiaries
Number of Majority Owned Subsidiaries
Number of Majority Owned Subsidiaries
Unearned Premiums
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Unearned Premium
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total
Net income
Nonredeemable Preferred Stock [Member]
Nonredeemable Preferred Stocks
Deferred Tax Assets, Other Loss Carryforwards
Dual consolidated loss carryforward
Notes Payable, Other Payables [Member]
Florida State Board of Administration
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount
Liability for unpaid claims and claims adjustment expense, incurred but not reported (IBNR) claims, amount
Long-Term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Percentage of issued and outstanding stock agreed to sell
Percentage of Issued and Outstanding Stock Agreed To Sell
Percentage of Issued and Outstanding Stock Agreed To Sell
Assumed losses and LAE incurred
Assumed Losses and LAE Incurred
Assumed losses and LAE incurred.
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Weighted Average Number of Shares Outstanding, Basic
Weighted average shares outstanding, Basic
Weighted-average shares outstanding
Restrictions on Cash and Cash Equivalents [Table]
Restrictions on Cash and Cash Equivalents [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Aggregate Intrinsic Value,Options Exercisable
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
Unrealized gain on outside basis of subsidiaryOther items (includes all items that individually have less than a 1.05% rate impact)
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Tax Expense Reconciliation
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule of Share-based Compensation, Activity
Schedule of Weighted-Average Assumptions
Unpaid Policy Claims and Claims Adjustment Expense, Policy [Policy Text Block]
Unpaid Losses and Loss Adjustment Expenses
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Income from continuing operations, net of tax
Income from continuing operations, net of tax
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Reinsurance, Excess Retention, Amount Reinsured, Per Policy
Reinsurance, excess retention, amount reinsured, per policy
Income (loss) before income taxes
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset [Domain]
Effective Income Tax Rate Reconciliation, Unused Business Tax Credit, Amount
Effective income tax rate reconciliation, unused business tax credit, amount.
Unused business tax credits
Valuation Allowance [Abstract]
Valuation Allowance [Abstract]
Shares Issued Under At the Market Program
Shares Issued Under At the Market Program
Shares Issued Under At the Market Program
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Subsequent Events [Text Block]
Subsequent Events
Total debt
Long-Term Debt
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block]
SCHEDULE IV . REINSURANCE
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Accumulated Depreciation - Leasehold improvements
Accumulated Depreciation - Leasehold improvements
Accumulated Depreciation - Leasehold improvements
Interboro Insurance
Interboro Insurance [Member]
Interboro Insurance
Deferred Tax Asset, In-Process Research and Development
R&D tax credit carryforward
Total Lease Future Payments Year 4
Total Lease Future Payments Year 4
2029
Equity, Attributable to Parent
Stockholders' Equity Attributable to Parent
Total Stockholders' Equity
Beginning balance
Ending balance
Preferred Stock, Par or Stated Value Per Share
Preferred stock, par value
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax
Reclassification adjustment for realized gains, Tax (Expense) Benefit
Proceeds from sale of subsidiary
Proceeds From Sale Of Subsidiary
Proceeds from sale of subsidiary.
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year
Furniture Disposal
Furniture Disposal
Furniture Disposal
Investment Holdings [Text Block]
Schedule I. Summary of Investments
Schedule of Nonvested Share Activity [Table Text Block]
Schedule of Nonvested Share Activity
Investments, Fair Value Disclosure [Abstract]
Fair Value at Sale
Credit Loss, Financial Instrument [Policy Text Block]
Credit Loss, Financial Instrument
Share-Based Payment Arrangement, Option and Stock Appreciation Rights, Activity [Table Text Block]
Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity
Treasury Stock, Common [Member]
Treasury Stock
Leasehold Improvements [Member]
Leasehold Improvements
Financing Receivable, Allowance for Credit Loss
Financing Receivable, Allowance for Credit Loss
Finance Lease, Liability, to be Paid, Maturity [Table Text Block]
Lease Liability Cash Activity
Non-Deductible Goodwill
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Goodwill
Effective income tax rate reconciliation, nondeductible expense, goodwill.
Second event retention level
Second Event Retention Level
Second event retention level.
Surplus Note
Surplus Note [Member]
Surplus note.
Percentage Of Gross Proceeds From Sale Of Shares
Percentage of gross proceeds from sale of shares.
Percentage of gross proceeds from sale of shares
All Other Perilds Catastrophe Excess of Loss
All Other Perilds Catastrophe Excess of Loss [Member]
All Other Perilds Catastrophe Excess of Loss
Investment Owned, Fair Value
Investment Owned, at Fair Value
Investment Owned, Fair Value, Ending Balance
Investment Owned, Fair Value, Beginning Balance
Fair Value
Noncontrolling Interest [Member]
Noncontrolling Interest
Income (Loss) from Equity Method Investments
Net income from subsidiaries (equity method)
Long-Term Debt, Maturity, Year Four
2029
Other Investments Not Readily Marketable [Table Text Block]
Schedule of Investments in Limited Partnerships
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Schedule of Unrecognized Tax Benefits Roll Forward
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share, Total
Discontinued operations
Condensed Financial Information of Parent Company Only Disclosure [Text Block]
Schedule II. Condensed Financial Information of Registrant
Plan Name [Domain]
Plan Name [Domain]
Statutory Net Income [Table]
Statutory Net Income [Table]
Statutory Net Income [Table]
Increase (Decrease) in Other Operating Assets
Other assets
Increase (Decrease) in Other Operating Assets, Total
Interest Expense, Operating and Nonoperating
Interest expense
Interest expense
Interest Expense, Operating and Nonoperating, Total
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis, Percent of Total
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis, Percent of Total
Due after five years through ten years
Mutual Fund [Member]
Mutual Fund
Entity [Domain]
Building [Member]
Building
Equity Securities, FV-NI, Realized Gain
Equity Securities, FV-NI, Realized Gain
Corporate income tax
Effective Coporate Income Tax
Effective coporate income tax.
Debt Securities, Held-to-Maturity, Transfer in, Allowance for Credit Loss, Expense
Credit Loss Change, Available-for-Sale Investments
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10
Due after ten years
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Current State and Local Tax Expense (Benefit)
Current
Available For Sale Securities Debt Maturities Single Maturity Date Fair Value Percent of Total [Abstract]
Available For Sale Securities Debt Maturities Single Maturity Date Fair Value Percent of Total [Abstract]
Percent of Total
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
Debt Securities [Member]
Fixed Maturities
Certificates of Deposit [Member]
Certificates of Deposit
Building Disposal
Building Disposal
Building Disposal
Former Gain Contingencies, Recognized in Current Period
Former gain contingency, recognized in current period
Former gain contingencies, recognized in current period.
Treasury Stock, Value
Treasury shares, at cost; 212,083 shares
Treasury Stock, Value, Total
Treasury shares
Refundable Tax Credit Percent
Refundable tax credit percent.
Refundable tax credit percent
Related and Nonrelated Parties [Axis]
Related Party [Axis]
AOCI before Tax, Attributable to Parent
AOCI before Tax, Attributable to Parent
Property, Plant and Equipment, Policy [Policy Text Block]
Long-lived Assets
Disposal Group Name [Domain]
Ceded Credit Risk [Table]
Partnership Interest [Member]
Other Investments
Effective Income Tax Rate Reconciliation Outside Basis In Subsidiary Rate
Effective income tax rate reconciliation outside basis in subsidiary rate.
Unrealized gain on outside basis of subsidiary, Percent
Investment Income [Table]
Investment Income [Table]
Event Retention Level
Event Retention Level
Event Retention Level
Retention per occurence
Short-duration Insurance Contracts, Historical Claims Duration, Year One
Short-Duration Insurance Contracts, Historical Claims Duration, Year One
Entity Address, City or Town
Entity Address, City or Town
Reinsurance Retention [Table]
Reinsurance Retention Policy [Table]
Discontinued Operations - Results of Ops IIC
Discontinued Operations - Results of Ops IIC [Table Text Block]
Schedule of Discontinued Operations - Results of Ops IIC
Changes in Payments outstanding
Changes in Payments outstanding
Payments outstanding
Security Exchange Name
Security Exchange Name
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Indefinite-lived intangible assets
Stockholders' Equity Narrative [Abstract]
Stockholders' Equity Narrative [Abstract]
Stockholders' Equity Narrative [Abstract]
Short-Duration Insurance Contracts, Historical Claims Duration, Year Four
Short-duration Insurance Contracts, Historical Claims Duration, Year Four
Property, Plant and Equipment, Gross
Total, at cost
Property, Plant and Equipment, Gross, Ending Balance
Property, Plant and Equipment, Gross, Beginning Balance
Total, at cost
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Liability for unpaid claims and claims adjustment expense, net, Beginning balance
Liability for unpaid claims and claims adjustment expense, net, Ending balance
Net unpaid losses and LAE
Effective Income Tax Rate Reconciliation, Florida State Tax Expense, Net of Federal Deduction Benefit
Effective income tax rate reconciliation, florida state tax expense, net of federal deduction benefit.
Florida state tax expense, net of federal deduction benefit
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months [Abstract]
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months [Abstract]
Less Than Twelve Months
Ceded change in unearned premiums
Increase (Decrease) in Ceded Unearned Premium
Increase (decrease) in ceded unearned premium.
Ceded change in unearned premiums
Accumulated Depreciation on Building Disposal
Accumulated Depreciation on Building Disposal
Accumulated Depreciation on Building Disposal
Available-for-sale, Gross Realized Losses, Fair Value at Sale
Available-for-sale, Gross Realized Losses, Fair Value at Sale
Fair value at sale
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Income before income taxes
Income before income taxes
Pretax net income
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Number of Stock Options Vested
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Income (loss) from discontinued operations, net of tax
Concentration Risk Type [Domain]
Reinsurance Recoverable for Paid Claims and Claims Adjustments
Reinsurance recoverable on paid losses and loss adjustment expenses
Liability for Claims and Claims Adjustment Expense [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Number of Shares
Less: Number of Stock Options Forfeited
Deferred Policy Acquisition Costs Disclosures [Abstract]
Lease Assets and Liabilities [Abstract]
Lease Assets and Liabilities [Abstract]
Lease Assets and Liabilities [Abstract]
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Impairment of Long-lived Assets
Investment Owned, Cost
Cost or Amortized Cost
Reinsurance Retention [Line Items]
Reinsurance Retention Policy
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Foreign rate differential, Percent
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Discontinued operations
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note [Abstract]
Insurance Commissions and Fees, Flood Program
Insurance Commissions and Fees, Flood Program
Insurance commissions and fees under Flood Program
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Total cash, cash equivalents and restricted cash
Total cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted at end of period
Cash, cash equivalents and restricted cash at beginning of period
Interest Paid, Excluding Capitalized Interest, Operating Activities
Interest Paid
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Citizens Assumption Premium
Citizens Assumption Premium
Citizens Assumption Premium
Gain on Leased Vehicle Disposal
Gain on Leased Vehicle Disposal
Gain on Leased Vehicle Disposal
Share-Based Payment Arrangement, Expense
Pre-Tax Expense
Investment Holdings [Table]
Document Period End Date
Document Period End Date
Reinsurance Payable
Reinsurance payable on premiums
Warrants Issued During Period to Purchase Common Stock
Warrants issued during period to purchase common stock.
Warrants issued to purchase common stock
FAS 115 Assets
FAS 115 Assets [Member]
FAS 115 assets.
Title and Position [Axis]
Title of Individual [Axis]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Other non-cash transactions
Other Non Cash Transactions
Other non cash transactions.
Defined Contribution Plan, Cost
Defined Contribution Plan, Cost
ICFR Auditor Attestation Flag
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Number of Stock Options Exercisable
Gain (Loss) on Disposition of Property Plant Equipment
Gain on sale of property and equipment
Gain (Loss) on Disposition of Property Plant Equipment, Total
Gain on sale of property and equipment
Corporations Taxable Income Percentage Overall Deduction Cap
Corporations taxable income percentage overall deduction cap.
Corporations taxable income percentage overall deduction cap
Long-Term Debt [Text Block]
Long-term Debt
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value, Percent of Total
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value, Percent of Total
Due in one year or less
Increase (Decrease) in Reinsurance Payables
Reinsurance payable on premiums
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Debt Securities, Available-for-Sale, Realized Loss
Debt Securities, Available-for-Sale, Realized Loss
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Vesting [Axis]
Vesting [Axis]
Class of Stock [Axis]
Class of Stock [Axis]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions
Deferred Tax Liabilities, Net
Deferred Tax Liabilities, Net, Total
Net deferred tax liabillities
Net deferred tax liability
Securities Owned and Other Investments Not Readily Marketable Disclosure [Table Text Block]
Securities Owned and Other Investments Not Readily Marketable Disclosure
Available-for-sale, Gross Realized Gains, Fair Value at Sale
Available-for-sale, Gross Realized Gains, Fair Value at Sale
Fair value at sale
Debt Securities, Available-for-Sale, Realized Gain (Loss)
Debt Securities, Available-for-Sale, Realized Gain (Loss)
Debt Securities, Available-for-Sale, Realized Gains (Losses)
Continuing Operations Tax Expense [Member]
Continuing operations tax expense.
Continuing Operations Tax Expense
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Disaggregation Of Relevant Expense Captions [Abstract]
Disaggregation of relevant expense captions.
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Intrinsic Value
Less: Aggregate Intrinsic Value,Options Forfeited
Premium Receivable, Credit Loss Expense (Reversal)
Premium Receivable, Provision for (reversal of) expected credit losses
Supplemental Information Concerning Consolidated Property and Casualty Insurance Operations
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Text Block]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Reinsurance, amount retained, per policy
Reinsurance, Amount Retained, Per Policy
Subsidiary
Subsidiary [Domain]
Subsidiary [Domain]
Liabilities
Liabilities
Total Liabilities
Kroll Bond Rating Agency, LLC Announced Downgrade Of Rating [Member]
Kroll Bond Rating Agency, LLC announced downgrade of rating.
Retension Loss Events
Retension loss events.
Retension loss events
Short-Duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Financial Instruments [Domain]
Financial Instruments [Domain]
Deferred Tax Assets, Investments
Investments
Valuation Allowance by Deferred Tax Asset [Axis]
Premiums Written, Gross
Gross premiums written
Premiums Written, Gross, Total
Percentage of Written Premiums
Percentage of written premiums.
Percentage of written premiums
Proceeds from Contributions from Parent
Proceeds from Contributions from Parent
Loss Contingency, Estimate of Possible Loss
Loss Contingency, Estimate of Possible Loss
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Foreign rate differential
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash and Cash Equivalents Items
Federal Operating Loss Carry forwards Subject To Expiration
Federal operating loss carry forwards subject to expiration.
Federal Operating Loss Carryforwards, Subject to Expiration
Restricted cash
Restricted Cash
Restricted Cash
Total restricted cash
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Restricted Stock [Member]
Restricted Stock
Accumulated Amortization of Software and Hardware
Accumulated Amortization of Software and Hardware
Accumulated Amortization of Software and Hardware
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Balance at End of Period
Balance at Beginning of Period
Finite-Lived Intangible Assets, Gross
Gross carrying amount
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions
Weighted Average Number of Shares Outstanding, Diluted
Weighted-average diluted shares
Diluted
Weighted average shares outstanding, Diluted
Ceded Credit Risk [Line Items]
Entity File Number
Entity File Number
Program provides sufficient coverage return period
Program Provide Sufficient Coverage Return Period
Program provides sufficient coverage return period.
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Changes in net unrealized losses on investments, Net-of-Tax Amount
Changes in net unrealized losses on investments, Net-of-Tax Amount
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent
Other items (includes all items that individually have less than a 1.05% rate impact)
Change in Operating Lease Liability
Change in Operating Lease Liability
Operating lease liability
Marketing and Advertising Expense
Marketing and Advertising Expense, Total
Marketing and Advertising Expense
Milton Reinstatement Premiums
Milton Reinstatement Premiums
Milton Reinstatement Premiums
Other Assets
Other assets
Other Assets, Total
Surchage collected per policy
Surchage Collected Per Policy
Surchage collected per policy
Accounting Standards Update 2023-07
Accounting Standards Update 2023-07 [Member]
Debt and Equity Securities, FV-NI [Line Items]
Debt and Equity Securities, FV-NI
Summary of Premium Received and Capital at Risk
Summary Of Premium Received And Capital At Risk [Table Text Block]
Summary Of Premium Received And Capital At Risk [Table Text Block]
Short-Duration Insurance Contract, Accident Year 2020 [Member]
'Short-Duration Insurance Contract, Accident Year 2020
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Prior Year Claim and Claim Adjustment Expense
Incurred Losses and LAE Prior Years
Incurred Losses and LAE Prior Years
Regulatory Assets, Fair Value Disclosure
Cash on deposit (regulatory deposits)
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value, Percent of Total
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value, Percent of Total
Due after one year through five years
Reclassification adjustment for net realized investment losses (gains)
Reclassification adjustment for realized gains, Pre-Tax Amount
Reclassification adjustment for net realized investment losses (gains)
Reclassification adjustments - gains (losses)
Reclassification adjustments - gains (losses)
Investments [Domain]
Investments [Domain]
Weighted Average Lease Terms [Abstract]
Weighted Average Lease Terms [Abstract]
Weighted Average Lease Terms [Abstract]
Deferred Tax Asset [Domain]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Total pretax income
Valuation Allowance Deferred Tax Asset Explanation Of Change Rate
Valuation allowance deferred tax asset explanation of change rate.
Change in valuation allowance, Percent
Change in valuation allowance, Percent
Revenue Benchmark [Member]
Revenue
Statutory Accounting Practices, Statutory Net Income Amount
Statutory net income
Authorized for issuance
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Number of Operating Segments
Number of operating segment
Capitalized Computer Software, Impairments
Capitalized Computer Software, Impairments
General and Administrative Expense
General and administrative expenses
Total general and administrative expenses
General and administrative
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Collateralized Mortgage-Backed Securities [Member]
Mortgage-backed securities
Association Fees
Association Fees
Association fees
Short-Duration Insurance Contracts, Historical Claims Duration, Year Six
Short-duration Insurance Contracts, Historical Claims Duration, Year Six
Premium Receivable, Allowance for Credit Loss, Writeoff
Premium Receivable, Allowance for Credit Loss, Writeoff
Premium Receivable, Allowance for Credit Loss, Writeoff
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
Dividends Declared [Table Text Block]
Schedule of Dividends Declared
Disposal Group Including Discontinued Operation Revenue [Abstract]
Disposal group including discontinued operation revenue.
REVENUE:
Subsequent Event [Table]
Subsequent Event [Table]
Deferred Tax Assets, Other
Other
Finite-Lived Intangible Assets, Net
Intangible assets subject to amortization
Net carrying amount
Operating Lease, Expense
Operating lease expense
Assumed Premiums Written
Assumed Premiums Written
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Weighted Average Exercise Prices,Options Vested
150M Senior Notes [Member]
150M Senior Notes [Member]
150M Senior Notes
Public Utilities [Member]
Public Utilities
Property, Plant and Equipment, Useful Life
Amortization of domestic R&D costs
New Accounting Pronouncements, Policy [Policy Text Block]
Pending Accounting Pronouncements
Accounting Pronouncements
Catastrophe Reinsurance Contract [Domain]
Catastrophe Reinsurance Contract [Domain]
Catastrophe Reinsurance Contract [Domain]
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Lessee, Operating Lease, Liability, Maturity
Amortization period of domestic Research and development cost
Amortization period of domestic Research and development cost.
Total Lease Future Payments Year 1
Total Lease Future Payments Year 1
2026
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent
Other permanent items
Deferred Policy Acquisition Costs
Deferred Policy Acquisition Costs [Text Block]
Accumulated Other Comprehensive Income (Loss), Tax (Expense) Benefit
Accumulated Other Comprehensive Income (Loss), Tax (Expense) Benefit
Accumulated Other Comprehensive Income (Loss), Tax (Expense) Benefit
Comprehensive Income (Loss) Note [Text Block]
Accumulated Other Comprehensive Income (Loss)
Corporate Income Tax Percentage
Corporate income tax percentage.
Corporate income tax percentage
Debt Instrument, Redemption, Description
Debt instrument, redemption description
Unrecognized Tax Benefits, Period Increase (Decrease)
Unrecognized Tax Benefits, Period Increase (Decrease), Total
Decrease based on tax positions related to prior years
Public Utility, Bonds [Member]
Public Utilities
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments
Reinsurance recoverable on paid and unpaid losses, net
Reinsurance recoverable on paid and unpaid losses, net
Third Event Retention Level
Third Event Retention Level
Third Event Retention Level
Percentage of principal amount of the notes to be redeemed
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed
Pretax income, United States
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Short-Duration Insurance Contract, Accident Year 2023 [Member]
'Short-Duration Insurance Contract, Accident Year 2023
Total Credit Loss Allowances
Total Credit Loss Allowances
Total Credit Loss Allowances
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Unrecognized stock compensation expense
Common Stock, Shares, Outstanding
Ending balance, Shares
Common stock, outstanding shares
Beginning balance, Shares
Reinsurance Contract
Reinsurance Contract [Domain]
Reinsurance Contract [Domain]
Depreciation, Depletion and Amortization
Depreciation and amortization expense
Depreciation, Depletion and Amortization, Total
Cybersecurity Risk Management Processes Integrated [Flag]
Document Transition Report
Document Transition Report
Deferred Tax Assets, Net
Net deferred tax asset
AmRisc gross written premiums [Member]
AmRisc gross written premiums [Member]
AmRisc gross written premiums
Asset Impairment Charges
Asset Impairment Charges
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]
Short-Duration Insurance Contract, Accident Year 2022 [Member]
'Short-Duration Insurance Contract, Accident Year 2022
Schedule of Investments [Abstract]
Schedule of Components of Income Tax Expense (Benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Total comprehensive income
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Sale And Realized Loss On Fixed Maturity Portfolio [Member]
Sale and realized loss on fixed maturity portfolio.
Sale and Realized Loss on Fixed Maturity Portfolio
Current Federal Tax Expense (Benefit)
Current
Operating Activities [Domain]
Operating Activities [Domain]
Non-Vested Common Stock Grants [Abstract]
Non-Vested Common Stock Grants [Abstract]
Non-Vested Common Stock Grants [Abstract]
Condensed Balance Sheet Statement [Table]
Equity [Text Block]
Stockholders' Equity
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Liability for unpaid claims and claims adjustment expense, claims paid, prior years
Discontinued Operations - Results of Ops UPC
Discontinued Operations - Results of Ops UPC [Table Text Block]
Schedule of Discontinued Operations - Results of Ops UPC
Earnings Per Share [Text Block]
Earnings Per Share
Ceded losses - All Other Perils Contract
Ceded losses - All Other Perils Contract
Ceded losses - All Other Perils Contract
Employee Benefit Plan [Abstract]
Employee benefit plan.
Debt Security, Government, Non-US [Member]
Foreign Government
Catastrophe Excess of Loss
Catastrophe Excess of Loss [Member]
Catastrophe Excess of Loss
Discontinued Operations and Disposal Groups [Abstract]
Computer Equipment [Member]
Computer Hardware and Software
Cybersecurity Risk Management Processes Integrated [Text Block]
Net income attributable to ACIC common stockholders
Net income
Event occurrence limit
Event Level Retention
Event Level Retention
Forza Insurance Holdings LLC [Member]
Forza insurance holdings llc.
Forza
Reinsurance Recoverable [Table]
Reinsurance Recoverable [Table]
Reinsurance Recoverable [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Outstanding Options, Intrinsic Value
Aggregate Intrinsic Value,Options Outstanding
Aggregate Intrinsic Value,Options Outstanding
2030
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five
OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax
Changes in net unrealized losses on investments,Tax (Expense) Benefit
Debt and Equity Securities, Gain (Loss)
Debt and Equity Securities, Gain (Loss), Total
Net realized losses (gains) on investments
Net realized losses on investments
Foreign tax statutory exemption
Effective Income Tax Rate Reconciliation At Foreign Tax Statutory Exemption, Amount
Effective income tax rate reconciliation at foreign tax statutory exemption, amount.
Equity Securities, FV-NI, Unrealized Gain (Loss)
Equity Securities, FV-NI, Unrealized Gain (Loss), Total
Net unrealized gains on equity securities
Net unrealized gains (losses) on equity securities
Expected annual dividend yield
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Provision For Credit Losses (Reversal)
Provision for credit losses (reversal).
Provision for (reversal of) expected credit losses
Reinsurer, Name [Axis]
Intangible Assets, Net (Excluding Goodwill)
Total
Intangible assets, net
Total
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Premium, Percentage Assumed to Net
Percentage of Premiums Assumed to Net
Short-Duration Insurance Contract, Accident Year 2025 [Member]
'Short-Duration Insurance Contract, Accident Year 2025
Hurricane [Member]
Hurricane Milton
Goodwill - Personal Lines
Goodwill - Personal Lines
Goodwill - Personal Lines
Operating Lease, Payments
Proceeds from Divestiture of Businesses
Cash proceeds received
Assets [Abstract]
ASSETS
Assets
Short-Duration Insurance and Deposit Contracts [Text Block]
Liability for unpaid losses and loss adjustment expenses
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Risk-free interest rate
Long-Term Debt, Fiscal Year Maturity [Abstract]
Document Fiscal Year Focus
Document Fiscal Year Focus
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Income (Loss)
Concentration Risk Benchmark [Domain]
Condensed Cash Flow Statement [Table]
Income Tax Reconciliation Pretax Net Income (Loss)
Income tax reconciliation pretax net income (loss).
Pretax Net income
Net Cash Provided by (Used in) Investing Activities [Abstract]
INVESTING ACTIVITIES
Dividends Received From Subsidiaries
Dividends received from subsidiaries.
Dividends received from subsidiaries
Credit Loss Allowance Activity [Table]
Credit Loss Allowance Activity [Table Text Block]
Allowance For Expected Credit Losses
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Investments
Net Direct Unpaid Losses and LAE
Net direct unpaid losses and LAE.
Direct unpaid losses and LAE
Loss on disposal
Gain (Loss) on Disposition of Business
Deferred Federal Income Tax Expense (Benefit)
Deferred
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
Schedule of Deferred Policy Acquisition Costs
Change in Accounting Principle, Type [Axis]
Change in Accounting Principle, Type [Axis]
Increase (Decrease) in Unearned Premiums
Unearned premiums
Finite-Lived Intangible Asset, Expected Amortization, Year One
2026
Finite-Lived Intangible Assets Amortization Expense [Table Text Block]
Summary of Intangible Assets Subject to Amortization and Not Fully Amortized
Revision of Prior Period [Domain]
Revision of Prior Period [Domain]
Property, Plant and Equipment, Disposals
Property, Plant and Equipment, Disposals
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis, Percent of Total
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis, Percent of Total
Due after one year through five years
Fixed Maturities [Member]
Fixed Maturities
CARES Act Federal Income Tax Impact
CARES Act Federal Income Tax Impact
CARES Act Federal Income Tax Impact
Schedule of Unrealized Loss on Investments [Table Text Block]
Schedule of Unrealized Loss on Investments
Net Investment Income
Investment income
Other Liabilities
Other Liabilities
Other liabilities
Other Liabilities, Total
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Gain Contingency, Unrecorded Amount
Gain Contingency, Unrecorded Amount
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrecognized Tax Benefit [LineItems]
Unrecognized tax benefit.
Florida
FLORIDA
Shoreline Re [Member]
Shoreline Re.
Shoreline Re
Sale of Stock, Consideration Received on Transaction
Sale of Stock, Consideration Received on Transaction
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net
Disposal Group, Including Discontinued Operation, Liabilities
Liabilities held for sale
Total liabilities
Effective Income Tax Rate Reconciliation [Line Items]
Restricted Cash [Abstract]
Restricted Cash [Abstract]
Former Gain Contingency, Recognized in Current Period
Former gain contingency, recognized in current period
Share-Based Payment Arrangement [Abstract]
Share-based Payment Arrangement [Abstract]
Employee Retention Tax Credit Refund
Employee retention tax credit refund.
Employee Retention Tax Credit Refund
Employee retention tax credit refund
Deferred Tax Liabilities, Intangible Assets
Intangible assets
Concentration risk, percentage
Concentration Risk, Percentage
Fair Value of Limited Partnership Interest
Fair Value of Limited Partnership Interest
Fair Value of Limited Partnership Interest
External Third-Party
External Third Party [Member]
External third-party.
Revenues
Revenues
Total revenue
Total revenue
Subsidiary
Subsidiary [Axis]
Subsidiary [Axis]
Net Cash Provided by (Used in) Investing Activities
Net cash provided by (used in) investing activities
Net cash provided by (used in) investing activities
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Total
Gain (loss) on disposal of discontinued operation
Gain (loss) on disposal of discontinued operation
Gain on disposition of former subsidiary
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent
Dividend received deduction
Net Ceded Unpaid Losses and LAE
Net ceded unpaid losses and LAE.
Ceded unpaid losses and LAE
Ceded unpaid losses and LAE
Title of 12(b) Security
Title of 12(b) Security
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]
Investment Income, Net
Net investment income
Net investment income
[Line Items] for Reinsurance Recoverable [Table]
Reinsurance Recoverable [Line Items]
Reinsurance Recoverable
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Less:Weighted Average Grant Date Fair Value Forfeited
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five
Due after one year through five years
Related and Nonrelated Parties [Domain]
Related Party [Domain]
Thereafter
Long-Term Debt, Maturity, after Year Five
Income Taxes
Income Tax Disclosure [Text Block]
Allowance for Credit Losses [Text Block]
Allowance for Expected Credit Losses
Short-duration Insurance Contract, Cumulative Number of Reported Claims
Short-Duration Insurance Contract, Cumulative Number of Reported Claims
Payments for Reinsurance
Cost of the agreement
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Legal Entity [Axis]
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five
Due after one year through five years
Condensed Balance Sheet Statements, Captions [Line Items]
Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities:
Reinsurance, excess retention level per event
Reinsurance, Excess Retention Level Per Event
Reinsurance, excess retention level per event.
Property, Plant and Equipment [Table Text Block]
Schedule of Property and Equipment
Income Tax Disclosure [Abstract]
Weighted Average Lease Terms
Weighted Average Lease Terms [Table Text Block]
Weighted Average Lease Terms
Unrecognized Tax Benefits
Unrecognized Tax Benefits
Balance at January 1
Balance at December 31
Additional Paid-in Capital [Member]
Additional Paid-in Capital
Measurement Frequency [Domain]
Increase (Decrease) in Assumed Unearned Premiums
Increase (decrease) in assumed unearned premiums,
Assumed change in unearned premiums
General Insurance Expense
General Insurance Expense
Liability insurance
Share Repurchase Program, Authorized, Amount
Stock Repurchase Program, Authorized Amount
Change in Accounting Principle, Accounting Standards Update, Adoption Date
Trading Symbol
Trading Symbol
Assessments [Policy Text Block]
Assessments.
Assessments
Paid Losses and LAE
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Paid Claim and Claim Adjustment Expense
Property, Plant and Equipment Disclosure [Text Block]
Property and Equipment, Net
Related Party Transaction [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Equity Securities, FV-NI, Current
Equity securities, fair value
Fair value
Short-duration Insurance Contracts, Historical Claims Duration, Year Two
Short-Duration Insurance Contracts, Historical Claims Duration, Year Two
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One
Due in one year or less
Statutory Net Income [Line Items]
Statutory Net Income [Line Items]
Statutory Net Income [Line Items]
Director [Member]
Director
Cash, Cash Equivalents And Short-Term Investments [Member]
Cash, Cash Equivalents And Short-Term Investments [Member]
Cash and cash equivalents
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Assumed Vesting Term of Options for Risk free Interest Rate
Assumed vesting term of options for risk free interest rate.
Assumed vesting term of options for risk free interest rate
Short-Duration Insurance Contracts, Accident Year 2017 [Member]
'Short-Duration Insurance Contract, Accident Year 2017
Net Cash Provided by (Used in) Financing Activities [Abstract]
FINANCING ACTIVITIES
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term
Expected term
Fair Value, Recurring [Member]
Recurring Basis
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment
Available-for-sale Securities, Fair Value Disclosure, Percent of Total
Available-for-sale Securities, Fair Value Disclosure, Percent of Total
Total
Significant Accounting Policies [Table]
Significant accounting policies.
Financing Receivable Portfolio Segment [Domain]
Ceded Premiums Written
Ceded Premiums Written
Ceded Premiums Written
Premiums Ceded to Other Companies
Deferred Policy Acquisition Costs, Policy [Policy Text Block]
Deferred Policy Acquisition Costs
Equity Components [Axis]
Equity Components [Axis]
Event occurrence limit
Event Occurrence Limit
Event occurrence limit.
Impact of Deconsolidation of Discontinued Operations - Pretax
Impact of Deconsolidation of Discontinued Operations - Pretax
Impact of Deconsolidation of Discontinued Operations
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term (years), Options Exercisable
Asset, Held-in-Trust
Trust funds
Accounts Payable
Accounts payable and accrued expenses
Accounts Payable, Total
Equity Component [Domain]
Equity Component [Domain]
Share-Based Payment Arrangement, Activity [Table Text Block]
Share-based Payment Arrangement, Activity
Two Zero One Three Omnibus Incentive Plan [Member]
Two Zero One Three Omnibus Incentive Plan.
2013 Omnibus Incentive Plan
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Deferred Policy Acquisition Cost
Deferred policy acquisition costs
Balance at January 1
Balance at December 31
Deferred policy acquisition costs, net
Deferred policy acquisition costs, net
Schedule of Realized Gain (Loss) [Table Text Block]
Schedule of Realized Gain (Loss)
Assumed Contractual Term of Options for Risk Free Interest Rate
Assumed contractual term of options for risk free interest rate.
Assumed contractual term of options for risk free interest rate
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Deferred Tax Valuation Allowance
Investments
Total investments
Document Annual Report
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10
Due after five years through ten years
Milton Retention, Net of Tax
Milton Retention, Net of Tax
Milton Retention, Net of Tax
Redeemable Preferred Stock [Member]
Redeemable Preferred Stocks
Proceeds from Income Tax Refunds
Proceeds from Income Tax Refunds
Federal income taxes refunded
Short-Duration Insurance Contracts, Historical Claims Duration [Table]
Equity securities, FV-NI Percent of Total
Equity securities, FV-NI Percent of Total
Percent of Total
Customer [Axis]
Notes Payable, Noncurrent
Notes Payable, Noncurrent, Total
Notes payable, net
Notes payable
Gain (Loss) on Disposition of Intangible Assets
Gain (Loss) on Disposition of Intangible Assets
Loss on disposal of indefinite life intangible assets
Net Investment Income [Line Items]
Net Investment Income
First Event Retention Level
First Event Retention Level
First Event Retention Level
Unallocated claims adjustment expenses
Short-Duration Insurance Contracts, Liability for Unpaid Claims and Claims Adjustment Expense, Accumulated Unallocated Claim Adjustment Expense
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction, Total
Dividend paid to Parent Company
Dividend Paid To Parent Company
Dividend paid to parent company.
US Treasury and Government [Member]
U.S. Government and Agency Securities
Error Correction, Type [Domain]
Error Correction, Type [Domain]
American Coastal Insurance Company
American Coastal Insurance Company [Member]
American Coastal Insurance Company
AmCoastal
Increase (Decrease) in Accrued Investment Income Receivable
Accrued investment income
Maximum [Member]
Maximum
Impairment of amortizing or non-amortizing intangible assets
Impairment of Intangible Assets (Excluding Goodwill)
Impairment of amortizing or non-amortizing intangible assets
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Less: Weighted Average Exercise Prices,Options Exercised
Premiums Written, Net
Net Premium Written
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated amortization
Common Stock, Value, Issued
Common stock, $0.0001 par value; 100,000,000 shares authorized; 48,976,885 and 48,417,045 issued, respectively; 48,764,802 and 48,204,962 outstanding, respectively
Common stock
Number of States in which Entity Operates
Number of States in which Entity Operates
Finance Lease, Principal Payments
Finance Lease, Principal Payments
Software in progress
Software in progress
Software in progress
Reinsurance Recoverable [Table Text Block]
Reinsurance Recoverables [Table Text Block]
Reinsurance Recoverables
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract]
Direct Premiums Written
Direct Premiums Written
Premium Receivable, Allowance for Credit Loss
Premium Receivable, Allowance for Credit Loss, Ending Balance
Premium Receivable, Allowance for Credit Loss, Beginning Balance
Premium Receivable Credit Loss Allowance
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Reinsurance Contract [Axis]
Reinsurance Contract [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value
Aggregate Intrinsic Value,Options Granted
Debt Securities, Available-for-Sale, Realized Gain
Debt Securities, Available-for-Sale, Realized Gain
Less: Aggregate Intrinsic Value,Options Expired
Share Based Compensation Arrangement By Share Based Payment Award Options Expired In Period Total Intrinsic Value
Share based compensation arrangement by share based payment award options expired in period total intrinsic value.
Amounts of Transactions
Related Party Transaction, Amounts of Transaction
Deferred Tax Liabilities, Prepaid Expenses
Prepaid expenses
Director and Office Liability Insurance Limit
Director and Office Liability Insurance Limit
Director and Office Liability Insurance Limit
Income (Loss) from Continuing Operations, Per Diluted Share
Continuing operations
Deferred Tax Assets, Operating Loss Carryforwards
Deferred Tax Assets, Operating Loss Carryforwards, Total
Net operating loss carryforward
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Accounting Standards Update 202506 [Member]
Accounting standards update 2025-06.
Accounting Standards Update 2025-06
Increase (Decrease) in Deferred Policy Acquisition Costs
Deferred policy acquisition costs, net
Premiums Receivable, Net
Premiums receivable, net
Premiums Receivable, Net, Total
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
State and local income tax, net of federal income tax effect, Percent
All Other Perils Catastrophe Excess Of Loss Agreement [Member]
All other perils catastrophe excess of loss agreement.
All Other Perils Catastrophe Excess of Loss Agreement
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range
Current Year Claims and Claims Adjustment Expense
Current Year Claims and Claims Adjustment Expense
Current year claims and claims adjustment expense
CARES Act Deferred Tax Asset Impact
CARES Act Deferred Tax Asset Impact
CARES Act Deferred Tax Asset Impact
Schedule of Finite-Lived Intangible Assets, Estimated Amortization Expense
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
First Event Coverage
First Event Coverage
Entity Public Float
Quota Share Agreement
Quota Share Agreement [Member]
Quota share agreement.
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Expected volatility
Preferred Stock, Shares Authorized
Preferred stock, authorized shares
Change in Gross Unearned Premiums
Change in Gross Unearned Premiums
Unearned premiums
Change in gross unearned premiums
Change in gross unearned premiums
Costs and Expenses
Costs and Expenses
Total expenses
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Schedule of Debt [Table Text Block]
Debt Issuance Cost Rollforward
Premiums Earned, Net
Net premiums earned
Net premiums earned
Net Premiums Written
Capital at Risk
Reinsurance Capital At Risk
Reinsurance capital at risk.
UPC Re
UPC Re [Member]
UPC Re
Statutory Accounting Practices Disclosure [Table Text Block]
Schedule of Statutory Accounting and Regulation
Payment, Tax Withholding, Share-Based Payment Arrangement
Payment, tax withholding, share-based payment arrangement
Tax withholding payment related to net settlement of equity awards
Refundable Tax Credit
Refundable tax credit.
Refundable tax credit
Building Disposals
Building Disposals
Building Disposals
Short-Duration Insurance Contract, Accident Year 2019 [Member]
'Short-Duration Insurance Contract, Accident Year 2019
Percentage of actual number of performance stock units earned
Percentage of Actual Number of Performance Stock units Earned
Percentage of actual number of performance stock units earned.
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Percent
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Percent, Total
Effects of cross-border tax laws, US tax on foreign insurance income, Percent
Related Party Transaction [Line Items]
Related Party Transaction
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Entity Registrant Name
Registrant Name
Audit Fees [Domain]
Audit Fees
Audit fees
Managing General Agent Fees
Managing General Agent Fees [Policy Text Block]
Managing general agent fees.
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Unrealized Loss
Entity Voluntary Filers
Customer Concentration Risk [Member]
Customer Concentration RisK
CAYMAN ISLANDS
Cayman Islands
Finite-Lived Intangible Asset, Expected Amortization, Year Two
2027
Outside of Interboro Insurance Company Stand Alone
Outside of Interboro Insurance Company Stand Alone Results, Discontinued Operation [Member]
Outside of IIC stand alone results, discontinued operation.
Short-Duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net
Other Nonoperating Income (Expense)
Other Nonoperating Income (Expense), Total
Other loss
Other income (loss)
Additional Paid in Capital
Additional Paid in Capital
Additional Paid in Capital, Total
Additional paid-in capital
Accumulated Other Comprehensive Income (Loss) [Table]
Schedule of Accumulated Other Comprehensive Income (Loss)
Deferred State and Local Income Tax Expense (Benefit)
Deferred
Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price
Weighted Average Exercise Prices,Options Exercisable
Equity Securities, FV-NI, Realized Loss
Equity Securities, FV-NI, Realized Loss
Subsequent Events [Abstract]
Subsequent Events [Abstract]
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Lease Costs [Abstract]
Lease Costs [Abstract]
Lease Costs [Abstract]
Liability for Claims and Claims Adjustment Expense [Line Items]
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Finite-Lived Intangible Asset, Expected Amortization, Year Three
2028
Income Tax Expense (Benefit)
Reported income tax expense
Tax benefit
Benefit for income taxes
Provision (benefit) for income taxes
Provision for income taxes
EXPENSES:
Disposal Group Including Discontinued Operation Expenses [Abstract]
Disposal group including discontinued operation expenses.
Measurement Frequency [Axis]
Other Investments
Other Investments
Other Investments, Total
Proceeds from Issuance of Common Stock
Proceeds from issuance of common stock, including exercise of stock options
Proceeds from issuance of common stock, including exercise of stock options
Insurance Disclosure [Text Block]
Statutory Accounting and Regulation
Costs and Expenses [Abstract]
EXPENSES:
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award
Investment Income [Table Text Block]
Investment Income
Impact of Deconsolidation on OCI - Discontinued Operations.
Impact of Deconsolidation on OCI - Discontinued Operations.
Impact of deconsolidation of discontinued operations
Entity Common Stock, Shares Outstanding
Common Stock, Shares, Outstanding
Statutory Accounting Practices, Statutory Capital and Surplus, Balance
Statutory capital and surplus balance
Concentrations of Risk
Concentration Risk, Credit Risk, Policy [Policy Text Block]
US States and Political Subdivisions Debt Securities [Member]
States, Municipalities and Political Subdivisions
[Line Items] for Credit Loss Allowance Activity [Table]
Credit Loss Allowance Activity [Line Items]
Allowance For Expected Credit Losses
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight
Short-Duration Insurance Contracts, Historical Claims Duration, Year Eight
[Domain] for Reinsurance Recoverable [Axis]
Reinsurance Recoverable [Domain]
Reinsurance Recoverable [Domain]
Short-Duration Insurance Contracts, Accident Year 2018 [Member]
'Short-Duration Insurance Contract, Accident Year 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive loss
Accumulated other comprehensive income
Accumulated other comprehensive loss
Total Lease Liability Undiscounted Excess Amount
Total Lease Liability Undiscounted Excess Amount
Less: Imputed interest
Consolidation Items [Axis]
Consolidation Items [Axis]
Investment in subsidiaries
Deferred Tax Assets, Investment in Subsidiaries
Payments to Acquire Property, Plant, and Equipment
Cost of property, equipment and capitalized software acquired
Limited Partner [Member]
Limited Partnership
Gain (Loss) on Investments
Net realized investment gains (losses)
Gain (Loss) on Investments, Total
Net realized investment gains
Ceded unearned premiums
Ceded Unearned Premiums, Net
Ceded unearned premiums, net.
Ceded unearned premiums
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of Restricted Shares Granted
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Liability for Unpaid Claims and Claims Adjustment Expense
Lease Assets and Liabilities [Table Text Block]
Lease Assets and Liabilities [Table Text Block]
Lease Assets and Liabilities
Restrictions on Cash and Cash Equivalents [Table Text Block]
Restrictions on Cash and Cash Equivalents
Assets
Assets
Total Assets
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Subsequent Event Retention Level
Subsequent Event Retention Level
Subsequent Event Retention Level
Income Statement [Abstract]
Income Statement [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation
Equity compensation
Fair Value
Fair Value of Financial Instruments, Policy [Policy Text Block]
Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss)
Global Minimum Tax Initiative Percentage
Global minimum tax initiative percentage.
Global minimum tax initiative
Legal Fees
Legal Fees
Legal fees
Stock Issued During Period, Shares, New Issues
Issuance of common stock, including exercise of stock options, Shares
Unearned Premiums
Unearned Premiums
Unearned premiums
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Less: Number of Restricted Shares Vested
Earnings Per Share, Diluted [Abstract]
Diluted
Earnings from subsidiaries
Earnings From Subsidiaries
Earnings from subsidiaries.
Leases [Policy Text Block]
Leases.
Leases
Earnings Per Share, Diluted
Diluted earnings per share
Earnings available to ACIC common stockholders per share, Diluted
Total
Capitalized Software Disposal - Gross
Capitalized Software Disposal - Gross
Capitalized Software Disposal - Gross
Finite-Lived Intangible Asset, Expected Amortization, Year Five
2030
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Title and Position [Domain]
Title of Individual [Domain]
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value
Asset and mortgage backed securities
Disposal Group, Including Discontinued Operation, Assets
Assets held for sale
Total assets
Assets held for disposal
City Area Code
City Area Code
Other comprehensive income, net
Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), Net of Tax, Total
Financing Receivable, Credit Loss, Expense (Reversal)
Financing Receivable, Credit Loss, Expense (Reversal)
Auditor Name
Excess Per Risk Agreement [Member]
Excess per risk agreement.
Excess Per Risk Agreement
Increase Decrease in Direct Unearned Premiums
Increase decrease in direct unearned premiums.
Direct change in unearned premiums
Insurance [Abstract]
Insurance [Abstract]
Effective Income Tax Rate Reconciliation, At Foreign Tax Statutory Exemption Tax Rate, Percent
Effective income tax rate reconciliation, at foreign tax statutory exemption tax rate, percent.
Foreign tax statutory exemption, Percent
Aggregate Retention Level
Aggregate Retention Level
Aggregate Retention Level
Consolidated Entity Excluding Noncontrolling Interests
Consolidated Entity Excluding Noncontrolling Interests [Member]
Consolidated Entity Excluding Noncontrolling Interests
Operating Lease, Weighted Average Remaining Lease Term
Weighted average remaining lease term, operating leases
Accumulated Depreciation on disposed systems
Accumulated Depreciation on disposed systems
Acccumulated Depreciation on disposed systems
Income Tax Rate Percentage of Bonus Depreciation
Income tax rate percentage of bonus depreciation
Income tax rate percentage of bonus depreciation.
Disposal Group Name [Axis]
Short-duration Insurance Contracts, Historical Claims Duration, Year Three
Short-Duration Insurance Contracts, Historical Claims Duration, Year Three
Available For Sale Securities Continuous Unrealized Loss Position Twelve Months or More [Abstract]
Available For Sale Securities Continuous Unrealized Loss Position Twelve Months or More [Abstract]
Twelve Months or More
Total Lease Liability
Total Lease Liability
Present value of lease liabilities
Award Date [Axis]
Award Date [Axis]
Investments [Abstract]
Investments, at fair value:
Cash, cash equivalents, and restricted cash
Cash and Cash Equivalents, Policy [Policy Text Block]
Property, Plant and Equipment, Net
Property and equipment, net
Property and equipment, net
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Prior period accrual adjustment
Prior Period Accrual Adjustment Rate
Prior period accrual adjustment rate.
Dividend Paid, Common Stock
Dividend Paid, Common Stock
Common Stock, Dividends, Per Share, Cash Paid
Prior Year Claims and Claims Adjustment Expense
Prior Year Claims and Claims Adjustment Expense
Prior year claims and claims adjustment expense
Discontinued Operations - Assets & Liabilities IIC
Discontinued Operations - Assets & Liabilities IIC [Table Text Block]
Schedule of Discontinued Operations - Assets & Liabilities IIC
Operating Income (Loss)
Income before other income
Income before other income
Award Date [Domain]
Award Date [Domain]
Total Lease Future Payments Year 5
Total Lease Future Payments Year 5
2030
Impact of deconsolidation of former entity, net of tax
Impact of deconsolidation of former entity, net of tax
Impact of deconsolidation of discontinued operations, Net-of-Tax Amount
Impact of deconsolidation of discontinued operations, Net-of-Tax Amount
Retained Earnings [Member]
Retained Earnings (Deficit)
Service Entities
Service Entities [Member]
Service Entities
Intangible Assets, Current
Tangible assets
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax
Income (loss) from discontinued operations, net of tax
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax, Total
Income Tax Reconciliation Pretax Income (Loss)
Income tax reconciliation pretax income (loss).
Pretax income
Employee Benefits and Share-Based Compensation
Employee Benefits and Share-Based Compensation
Employee compensation
Share-Based Payment Arrangement, Noncash Expense
Stock based compensation
Share-Based Payment Arrangement, Noncash Expense, Total
Payments of Stock Issuance Costs
Payments of Stock Issuance Costs
Reinsurance, Aggregate Retention
Reinsurance, aggregate retention.
Reinsurance, aggregate retention
Shares available for issuance under at the market offering
Shares available for issuance under at the market offering
Shares available for issuance under at the market offering
Reinsurance Effects On Unpaid Lossses, LAE and Unearned Premiums
Reinsurance Effects On Unpaid Lossses, LAE and Unearned Premiums [Table Text Block]
Reinsurance Effects On Unpaid Lossses, LAE and Unearned Premiums
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Operating Lease, Weighted Average Discount Rate, Percent
Weighted average discount rate
Fair Value Transfers Between Level One Two And Three
Fair value transfers between level one two and three.
Fair value transfer, investments between levels
Fair Value, Inputs, Level 1 [Member]
Level 1
Class of Stock [Line Items]
Class of Stock
Net Cash Provided by (Used in) Financing Activities
Net cash provided by (used in) financing activities
Net cash provided by (used in) financing activities
Short-Duration Insurance Contracts, Schedule of Historical Claims Duration [Table Text Block]
Short-duration Insurance Contracts, Schedule of Historical Claims Duration
Lease, Cost [Table Text Block]
Lease, Cost
Short-Duration Insurance Contract, Accident Year 2024 [Member]
'Short-Duration Insurance Contract, Accident Year 2024
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Auditor Location
Direct losses and LAE incurred
Direct Losses and LAE Incurred
Direct losses and LAE incurred.
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10
Due after five years through ten years
Available For Sale Securities Debt Maturities Single Maturity Date Percent of Total [Abstract]
Available For Sale Securities Debt Maturities Single Maturity Date Percent of Total [Abstract]
Percent of Total
Net Premiums Earned
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Earned Premium
Goodwill [Table]
Reinsurer, Name [Domain]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred Policy Acquisition Cost, Capitalization
Policy acquisition costs deferred
Disposition Of Cash On Divestiture Of Subsidiary
Disposition of cash on divestiture of subsidiary
Disposition of cash on divestiture of subsidiary
Other Long-Term Investments [Member]
Other Long-term Investments
Corporate Debt Securities [Member]
Corporate Securities
Income Tax Jurisdiction [Domain]
Reinsurance recoverable, allowance for credit loss, writeoff
Reinsurance recoverable, allowance for credit loss, writeoff
Reinsurance recoverable, allowance for credit loss, writeoff
Debt Securities, Available-for-Sale [Table]
Schedule of Available-for-sale Securities [Table]
Entity Interactive Data Current
Entity Interactive Data Current
Net Cash Provided by (Used in) Operating Activities [Abstract]
OPERATING ACTIVITIES
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount
Dividend received deduction
Accretion (Amortization) of Discounts and Premiums, Investments
Bond amortization and accretion
Liability for Claims and Claims Adjustment Expense, by Claim Status [Abstract]
Composition of reserve for unpaid losses and LAE:
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Deferred Tax Asset Bad Debt Expense
Deferred tax asset bad debt expense.
Bad debt expense
Catastrophic Event [Domain]
Catastrophic Event [Domain]
Summary of Intangible Assets Excluding Goodwill
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
Deferred Sales Commission
Unearned ceding commission
Unearned ceding commission
Income tax, tangible assets
Income Tax, Tangible Assets
Income tax, tangible assets.
Liability for Catastrophe Claims [Line Items]
Liability for Catastrophe Claims
Common Stock, Dividends, Per Share, Declared
Common Stock, Dividends, Per Share, Declared
Entity Tax Identification Number
Entity Tax Identification Number
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries
Restricted net assets
Equipment Expense
Equipment Expense
Software & equipment costs
Revenues [Abstract]
REVENUE:
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Cost or Amortized Cost
Land [Member]
Land
Long-Term Debt, Type [Axis]
Long-term Debt, Type [Axis]
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Current Year Claim and Claim Adjustment Expense
Incurred Losses and LAE Current Year
Condensed Income Statement [Table]
Other Investments [Member]
Other Investments
Debt Instrument, Term
Debt Instrument, Term
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Organization, Consolidation and Presentation
Available-for-sale Securities, Debt Maturities, Without Single Maturity Date, Cost, Percent of Total
Available-for-sale Securities, Debt Maturities, Without Single Maturity Date, Cost, Percent of Total
Asset and mortgage backed securities
Net Investment Income
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters, Net Investment Income
Percentage of floor on taxable income
Percentage of Floor on Taxable Income
Percentage of Floor on Taxable Income
Construction in Progress, Gross
Construction in Progress
Local Phone Number
Local Phone Number
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Denominator
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures
Less: Number of Restricted Shares Forfeited
Two Zero Two Zero Omnibus Incentive Plan [Member]
Two Zero Two Zero Omnibus Incentive Plan.
2020 Omnibus Incentive Plan
Net fair value at sale
Available-for-sale, Gross Realized Gains (Losses), Fair Value at Sale
Available-for-sale, Gross Realized Gains (Losses), Fair Value at Sale
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net
Short-Duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net
Short-Duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Total
Liabilities for unpaid claims and claim adjustment expenses, net of reinsurance
Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis, Percent of Total
Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis, Percent of Total
Due in one year or less
Reinsurance Recoverable Change in Credit Loss Allowance
Reinsurance Recoverable Change in Credit Loss Allowance
Reinsurance Recoverable Change in Credit Loss Allowance
Provision for uncollectable reinsurance recoverables
Accumulated Depreciation - Leased Vehicles Disposed of
Accumulated Depreciation - Leased Vehicles Disposed of
Accumulated Depreciation - Leased Vehicles Disposed of
Other State Tax Jurisdiction [Member]
Other State Tax Jurisdiction
All other state
Reinsurance Recoverable, Allowance for Credit Loss
Reinsurance Recoverable, Allowance for Credit Loss
Reinsurance Recoverable, Allowance for Credit Loss, Ending Balance
Reinsurance Recoverable, Allowance for Credit Loss, Beginning Balance
Reinsurance Recoverable Credit Loss Allowance
Class of Stock [Domain]
Class of Stock [Domain]
External Credit Rating by Grouping [Domain]
Office Equipment [Member]
Office Furniture and Equipment
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
Premium deficiency
Premium Deficiency
Premium deficiency.
Stock, Class of Stock [Table]
Schedule of Stock by Class [Table]
Schedule of Dividends Declared
Goodwill, Impaired, Accumulated Impairment Loss
Goodwill, Impaired, Accumulated Impairment Loss
Entity Emerging Growth Company
Entity Emerging Growth Company
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term (years), Options Vested
Catastrophe Reinsurance Contract
Catastrophe Reinsurance Contract [Axis]
Reinsurance Contract [Axis]
Liability for Unpaid Claims and Claims Adjustment Expense, Reported Claims, Amount
Liability for Unpaid Claims and Claims Adjustment Expense, Reported Claims, Amount
Liability for unpaid claims and claims adjustment expense, reported claims, amount
Commercial Mortgage Loans [Member]
Commercial mortgage loans.
Commercial Mortgage Loans