75000 - Document - Document & Entity Information
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link:definitionLink
75010 - Statement - Condensed Consolidated Balance Sheets
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75020 - Statement - Condensed Consolidated Balance Sheets (Parentheticals)
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75030 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited)
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link:definitionLink
75040 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) 2
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75050 - Statement - Condensed Consolidated Statements of Stockholders' Equity
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link:calculationLink
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75060 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
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995455 - Disclosure - Organization, Consolidation and Presentation
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995465 - Disclosure - Significant Accounting Policies
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995475 - Disclosure - Discontinued Operations
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995485 - Disclosure - Investments
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995495 - Disclosure - Earnings per Share
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995505 - Disclosure - Reinsurance
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995515 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense
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995525 - Disclosure - Statutory Accounting and Regulation
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995535 - Disclosure - Long-Term Debt
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995545 - Disclosure - Goodwill and Intangible Assets
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995555 - Disclosure - Commitments and Contingencies
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995565 - Disclosure - Disaggregation of Relevant Expense Captions
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995575 - Disclosure - Property and Equipment, Net
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995585 - Disclosure - Accumulated Other Comprehensive Loss
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995595 - Disclosure - Related Party Transactions
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995605 - Disclosure - Stockholders' Equity
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995615 - Disclosure - Stock-Based Compensation
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995625 - Disclosure - Allowance For Expected Credit Losses
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995635 - Disclosure - Subsequent Events
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995645 - Disclosure - Significant Accounting Policies (Policies)
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995655 - Disclosure - Discontinued Operations (Tables)
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995665 - Disclosure - Investments (Tables)
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995675 - Disclosure - Earnings per Share (Tables)
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995685 - Disclosure - Reinsurance (Tables)
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995695 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense (Tables)
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995705 - Disclosure - Statutory Accounting and Regulation (Tables)
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995715 - Disclosure - Long-Term Debt (Tables)
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995725 - Disclosure - Goodwill and Intangible Assets (Tables)
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995735 - Disclosure - Commitments and Contingencies (Tables)
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995745 - Disclosure - Disaggregation of Relevant Expense Captions (Tables)
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995755 - Disclosure - Property and Equipment, Net (Tables)
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995765 - Disclosure - Accumulated Other Comprehensive Loss (Tables)
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995775 - Disclosure - Allowance For Expected Credit Losses (Tables)
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995785 - Disclosure - Stockholders' Equity (Tables)
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995795 - Disclosure - Stock-Based Compensation (Tables)
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link:calculationLink
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995805 - Disclosure - Other Income and Expenses (Tables)
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link:calculationLink
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995815 - Disclosure - Organization, Consolidation and Presentation (Details)
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link:calculationLink
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995825 - Disclosure - Significant Accounting Policies Tax Impacts (Details)
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link:calculationLink
link:definitionLink
995835 - Disclosure - Discontinued Operations - Additional Information (Details)
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link:calculationLink
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995845 - Disclosure - Discontinued Operations - Schedule of Results of Ops IIC (Details)
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995855 - Disclosure - Discontinued Operations - Schedule of Results of Ops IIC (Parenthetical) (Details)
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995865 - Disclosure - Discontinued Operations - Schedule of Assets & Liabilities IIC (Details)
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995875 - Disclosure - Investments - Schedule of Available-for-sale Securities Reconciliation (Details)
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995885 - Disclosure - Investments - Equity Securities, FV-NI (Details)
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995895 - Disclosure - Investments - Schedule of Realized Gain (Loss) (Details)
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995905 - Disclosure - Investments - Investments Classified by Contractual Maturity Date (Details)
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995915 - Disclosure - Investments - Investment Income (Details)
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995915 - Disclosure - Investments - Investment Income (Details) [Default]
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995925 - Disclosure - Investments - Additional Information (Details)
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995935 - Disclosure - Investments - Schedule of Unrealized Loss on Investments (Details)
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995945 - Disclosure - Investments - Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis (Details)
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995945 - Disclosure - Investments - Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis (Details) [Default]
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995955 - Disclosure - Investments - Schedule of Warrants Fair Value Estimated Using Black-Scholes-Merton Formula (Details)
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995965 - Disclosure - Investments - Schedule of Fair Value of Financial Instruments with Unobservable Inputs (Details)
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995975 - Disclosure - Investments - Schedule of Other Investments (Details)
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995985 - Disclosure - Investments - Restricted Cash (Details)
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995995 - Disclosure - Investments - Schedule of Credit Loss Allowance (Details)
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996005 - Disclosure - Earnings per Share - Schedule of Earnings per Share (Details)
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link:calculationLink
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996015 - Disclosure - Reinsurance - Additional Information (Details)
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link:calculationLink
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996025 - Disclosure - Reinsurance - Summary of Premium Received and Capital at Risk (Details)
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link:calculationLink
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996025 - Disclosure - Reinsurance - Summary of Premium Received and Capital at Risk (Details) [Default]
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996035 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Details)
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link:calculationLink
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996035 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Details) [Default]
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996045 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Parenthetical) (Details)
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996045 - Disclosure - Reinsurance - Schedule of External Quota Share Agreements (Parenthetical) (Details) [Default]
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996055 - Disclosure - Reinsurance - Reinsurance Recoverables (Details)
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996065 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Schedule of Liability for Unpaid Claims and Claims Adjustment Expense (Details)
link:presentationLink
link:calculationLink
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996075 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Schedule of Liability for Unpaid Claims and Claims Adjustment Expense (Details) 2
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link:calculationLink
link:definitionLink
996085 - Disclosure - Liability for Unpaid Losses and Loss Adjustment Expense - Additional Information (Details)
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link:calculationLink
link:definitionLink
996095 - Disclosure - Statutory Accounting and Regulation (Details)
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link:calculationLink
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996105 - Disclosure - Statutory Accounting and Regulation - Schedule of Statutory Accounting and Regulation (Details)
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996115 - Disclosure - Long-Term Debt - Additional Information (Details)
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link:calculationLink
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996125 - Disclosure - Schedule of Long-Term Debt (Details)
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link:calculationLink
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996135 - Disclosure - Long-Term Debt - Debt Issuance Cost Rollforward (Details)
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996145 - Disclosure - Goodwill and Intangible Assets - Narrative (Details)
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996155 - Disclosure - Goodwill and Intangible Assets - Summary of Intangible Assets Excluding Goodwill (Details)
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996165 - Disclosure - Goodwill and Intangible Assets - Summary of Intangible Assets Subject to Amortization and Not Fully Amortized (Details)
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link:calculationLink
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996175 - Disclosure - Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets, Estimated Amortization Expense (Details)
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link:calculationLink
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996185 - Disclosure - Goodwill and Intangible Assets - Schedule of Acquired Finite-Lived Intangible Assets Weighted Average Life (Details)
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996195 - Disclosure - Commitments and Contingencies - Additional Information (Details)
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996205 - Disclosure - Commitments and Contingencies - Summary of Operating and Lease Asset and Liability Balances (Details)
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996215 - Disclosure - Commitments and Contingencies - Summary of Lease Expenses (Details)
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996225 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Gross Lease Payments Relating to the Non-Cancellable Operating Lease Agreements (Details)
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996235 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Gross Lease Payments Relating to the Non-Cancellable Operating Lease Agreements (Details) 2
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996245 - Disclosure - Commitments and Contingencies - Summary of Weighted Average Remaining Lease Term and Discount Rate Related to Operating Leases (Details)
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996255 - Disclosure - Disaggregation of Relevant Expense Captions - Schedule of Other Operating Cost and Expense, by Component (Details)
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996265 - Disclosure - Disaggregation Of Relevant Expense Captions - Schedule Of Other Operating Cost And Expense, By Component (Parenthetical) (Details)
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996275 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment (Details)
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996285 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment (Parthentical) (Details)
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996295 - Disclosure - Property and Equipment, Net (Details)
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996305 - Disclosure - Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details)
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996315 - Disclosure - Stockholders' Equity - Additional Information (Details)
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996325 - Disclosure - Stock-Based Compensation - Stock-based Compensation Expense (Details)
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996335 - Disclosure - Stock-Based Compensation - Additional Information (Details)
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996345 - Disclosure - Stock-Based Compensation - Non-Vested Common Stock Grants (Details)
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996355 - Disclosure - Stock-Based Compensation - Weighted-Average Assumptions - Stock Options (Details)
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996365 - Disclosure - Stock-Based Compensation - Non-Vested Stock Options (Details)
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996375 - Disclosure - Allowance for Expected Credit Losses (Details)
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996385 - Disclosure - Subsequent Events - Additional Information (Details)
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Public Utilities [Member]
Public Utilities
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value
Asset and mortgage backed securities
Accounts Payable
Accounts Payable
Accounts Payable, Total
Accounts payable and accrued expenses
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
Percentage of Flood Premiums Ceded
Percentage of Flood Premiums Ceded
Flood premiums ceded (percentage)
Preferred Stock, Shares Issued
Preferred stock, issued shares
Measurement Input, Share Price [Member]
Price per Common Share
Operating Lease, Liability
Operating lease liabilities
Operating Lease, Liability, Total
Operating lease liability
Interest Expense, Operating and Nonoperating
Interest expense
Interest expense
Share Repurchase Program, Authorized, Amount
Stock Repurchase Program, Authorized Amount
Alternative Investment, Measurement Input
Disposal Group, Including Discontinued Operation, Other Investments
Disposal group, including discontinued operation, other investments.
General Insurance Expense
General Insurance Expense
Liability insurance
Commitments and Contingencies
Commitments and Contingencies (Note 11)
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
Weighted Average Number of Shares Outstanding, Diluted
Weighted-average diluted shares
Weighted average shares outstanding, Diluted
Class B Coverage
Class B Coverage [Member]
Class B coverage.
Treasury share repurchases
Stock Repurchased During Period, Shares
Reinstatement Premium - All Other Perils
Reinstatement Premium - All Other Perils
Reinstatement Premium - All Other Perils
Other Investments
Other Investments
Minimum [Member]
Minimum
Debt Securities, Available-for-Sale, Realized Gain
Debt Securities, Available-for-Sale, Realized Gain
Debt Securities, Available-for-Sale, Realized Gain, Total
Exercise Price Range [Domain]
Exercise Price Range [Domain]
Reinsurer, Name [Axis]
Debt Instrument, Interest Rate, Effective Percentage
Debt Instrument, Interest Rate, Effective Percentage
Legal Fees
Legal Fees
Legal fees
Preferred Stock, Shares Outstanding
Preferred stock, outstanding shares
Recurring Basis
Fair Value, Recurring [Member]
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]
Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Total Lease Future Payments
Total Lease Future Payments
Total undiscounted future minimum lease payments
Total undiscounted future minimum lease payments
Common Stock, Shares, Issued
Common stock, issued shares
Total Credit Loss Allowance Expenses (Reversal)
Total credit loss allowance expenses reversal.
Total Provision for (reversal of) expected credit losses
Provision for income taxes
Income Tax Expense (Benefit), Total
Tax benefit
Tax benefit
Provision for income taxes
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Liability for Unpaid Claims and Claims Adjustment Expense
Securities Owned and Other Investments Not Readily Marketable Disclosure [Table Text Block]
Securities Owned and Other Investments Not Readily Marketable Disclosure
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
Employee [Member]
Employee [Member]
Employee
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Total Lease Future Payments Year 3
Total Lease Future Payments Year 3
2028
Intangible Asset, Finite-Lived, Class [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Catastrophe Bond Class [Axis]
Catastrophe bond class.
Intangible Asset, Indefinite-Lived [Table Text Block]
Summary of Intangible Assets Excluding Goodwill
Debt Securities, Available-for-Sale, Amortized Cost
Fixed maturities, cost
Cost or adjusted/amortized cost
Book Value
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period
Less: Number of Stock Options Expired
Goodwill acquired, disposed of or impaired during period
Goodwill Acquired, Disposed Of Or Impaired During Period
Goodwill acquired, disposed of or impaired during period.
Increase (Decrease) in Prepaid Reinsurance Premiums
Ceded unearned premiums
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
Catastrophe Bond Class [Domain]
Catastrophe bond class.
Property, Plant, and Equipment [Text Block]
Property and Equipment, Net
Employee Retention Tax Credit Refunds
Employee retention tax credit refunds.
Employee retention tax credit refunds
Asset-Backed Securities [Member]
Asset-backed Securities
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table Text Block]
Schedule of Credit Loss Allowance
Other Long-Term Investments [Member]
Other Long-term Investments
Schedule of Long-Term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
General and Administrative Expense
General and administrative expenses
Total general and administrative expenses
Income Statement [Abstract]
Income Statement [Abstract]
Comprehensive Income (Loss) Note [Text Block]
Accumulated Other Comprehensive Loss
Fair Value Measurements, Nonrecurring, Financial Instruments
Fair value measurements, nonrecurring, financial instruments.
Financial instruments measured on non-recurring basis
Intangible Asset, Finite-Lived, Acquired [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Income Tax Jurisdiction [Axis]
Total Lease Future Payments Thereafter
Total Lease Future Payments Thereafter
Thereafter
Statutory Accounting Practices, Statutory Net Income Amount
Net Income
Lease, Cost [Table Text Block]
Lease, Cost
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
Schedule of Available-for-sale Securities Reconciliation
Debt Instsrument Leverage Ratio
Debt instsrument leverage ratio.
Debt instrument, leverage ratio
Hurricane [Member]
Earnings Per Share, Basic
Total
Earnings available to ACIC common stockholders per share, Basic
Total
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
Document Period End Date
Document Period End Date
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year
2026
Intangible Asset, Finite-Lived, after Accumulated Amortization
Intangible assets subject to amortization
Net carrying amount
Payments to Acquire Property, Plant, and Equipment
Cost of property, equipment and capitalized software acquired
Cost of property, equipment and capitalized software acquired
Debt Instrument [Line Items]
Debt Instrument
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Weighted Average Exercise Prices,Options Granted
Granted (Weighted-Average Exercise)
Common Stock, Shares Authorized
Common stock, authorized shares
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two
2028
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Debt Securities [Member]
Fixed Maturities
Catastrophe Aggregate Excess of Loss
Catastrophe Aggregate Excess of Loss [Member]
Catastrophe Aggregate Excess of Loss
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
Catastrophic Event [Domain]
Percentage of Loss Adjustment Expense
Percentage of loss adjustment expense.
Percentage of loss adjustment expense
Percentage of singe occurrence exceeding protection purchased
Percentage of Singe Occurrence Exceeding Protection Purchased
Percentage of singe occurrence exceeding protection purchased.
Investments [Domain]
Investments [Domain]
Weighted Average Number of Shares Outstanding, Basic and Diluted [Abstract]
Weighted Average Number of Shares Outstanding, Basic and Diluted [Abstract]
Weighted average shares outstanding
Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), Net of Tax, Total
Other comprehensive income, net
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
Payments to Acquire Other Investments
Payments to Acquire Other Investments
Purchases of Other investments
Payments outstanding
Payments outstanding
Payments outstanding
Payments outstanding
Debt Instrument, Interest Rate, Stated Percentage
Interest rate (percentage)
External Credit Rating by Grouping [Axis]
Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block]
Schedule of Finite-Lived Intangible Assets, Estimated Amortization Expense
Costs and Expenses
Costs and Expenses
Total expenses
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule of Share-based Compensation, Activity
Schedule of Weighted-Average Assumptions
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
Assets
Assets
Total Assets
Title of 12(b) Security
Title of 12(b) Security
Liability for Unpaid Claims and Claims Adjustment Expense, Reported Claims, Amount
Liability for unpaid claims and claims adjustment expense, reported claims, amount
Insurance Disclosure [Text Block]
Statutory Accounting and Regulation
Goodwill
Goodwill
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 but Not Reported (IBNR) Claims, Amount
IBNR reserves
Liability for unpaid claims and claims adjustment expense, incurred but not reported (IBNR) claims, amount
Program Provides Sufficient Coverage Probability Rate
Program provides sufficient coverage probability rate.
Program provides sufficient coverage probability rate
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
Number of Stock Options Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross
Number of stock options granted during period
Vehicles
Vehicles [Member]
Title and Position [Domain]
Title of Individual [Domain]
Number of States in which Entity Operates
Number of States in which Entity Operates
Discontinued Operations - Assets & Liabilities UPC
Discontinued Operations - Assets & Liabilities UPC [Table Text Block]
Discontinued Operations - Assets & Liabilities UPC
Premiums Receivable, Net
Premiums receivable, net
Premiums Receivable, Net, Total
Premiums receivable, net
Interest Paid, Excluding Capitalized Interest, Operating Activities
Interest paid
Measurement Input, Option Volatility [Member]
Expected Volatility
Policyholder Benefits and Claims Incurred, Net
Losses and loss adjustment expenses
Location, Statement of Financial Position, Balance [Axis]
Regulatory Assets, Fair Value Disclosure
Regulatory Assets, Fair Value Disclosure
Cash on deposit (regulatory deposits)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term
Outstanding contractual term
Weighted Average Remaining Contractual Term (years), Options Outstanding
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
Disposal Group, Including Discontinued Operation, Other Assets
External Credit Rating by Grouping [Domain]
Customer Relationships [Member]
Customer Relationships
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four
2030
Insured Long Term Debt Project Demand Decrease
Insured long term debt project demand decrease.
Insured long term debt project demand decrease
Payments to Acquire Debt Securities, Available-for-Sale
Payments to Acquire Fixed Maturities, Available-for-sale
Payments to Acquire Fixed Maturities, Available-for-sale
Purchases of Fixed maturities
Number of Wholly-Owned Subsidiaries
Number of Wholly-Owned Subsidiaries
Number of wholly owned subsidiaries
Earnings Per Share, Diluted [Abstract]
Diluted
Equity, Attributable to Parent
Stockholders' Equity Attributable to Parent
Total Stockholders' Equity
Ending balance
Beginning balance
Treasury Stock, Common [Member]
Treasury Stock
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Income Tax Jurisdiction, Domestic State and Local [Member]
State and Local Jurisdiction
UPC Insurance
UPC Insurance [Member]
UPC Insurance
Earnings Per Share [Text Block]
Earnings Per Share (EPS)
Long-Term Debt, Fair Value
Long-term Debt, Fair Value
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One
Due in one year or less
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note [Abstract]
Reinsurance Retention [Line Items]
Reinsurance Retention Policy
Notes Payable, Noncurrent
Notes payable, net
Notes payable
Office Equipment [Member]
Office Furniture and Equipment
Statutory Accounting Practices, Statutory Capital and Surplus, Balance
Statutory capital and surplus balance
Reinsurance Recoverable for Paid Claims and Claims Adjustments
Reinsurance recoverable on paid losses and loss adjustment expenses
Allowance for Credit Losses [Text Block]
Allowance for Expected Credit Losses
Accounts Receivable, Credit Loss Expense (Reversal)
Provision for uncollectable premiums
Percentage of share acquired
Percentage of share acquired.
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Unrealized Gain
Gross Unrealized Gains
Restricted Stock [Member]
Restricted Stock
Debt and Equity Securities, Gain (Loss)
Net realized losses (gains) on investments
Schedule of Nonvested Share Activity [Table Text Block]
Schedule of Nonvested Share Activity
Current Year Claims and Claims Adjustment Expense
Current year claims and claims adjustment expense
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
Geographical [Domain]
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three
2029
Equity Securities, FV-NI, Current
Equity securities, fair value
Fair value
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One
Due in one year or less
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Accrued Investment Income Receivable
Accrued Investment Income
Accrued investment income
Number of Additional States in which Entity is Licensed
Number of Additional States in which Entity is Licensed
Additional Licensed States
Entity Interactive Data Current
Entity Interactive Data Current
Ceded Premiums Earned
Ceded Premiums Earned
Ceded premiums earned
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Vested contractual term
Weighted Average Remaining Contractual Term (years), Options Vested
Common Stock, Value, Issued
Common stock, $0.0001 par value; 100,000,000 shares authorized; 49,288,637 and 48,976,885 issued, respectively; 47,271,828 and 48,764,802 outstanding, respectively
Liability for Claims and Claims Adjustment Expense
Unpaid losses and loss adjustment expenses
Unpaid losses and loss adjustment expenses
Liability for Claims and Claims Adjustment Expense, Total
Liability for claims and claims adjustment expense, Ending balance
Liability for claims and claims adjustment expense, Beginning balance
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of Earnings Per Share
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
Liabilities
Liabilities
Total Liabilities
Weighted average remaining expense period
Weighted average remaining expense period
Weighted average remaining expense period
Equity Securities, FV-NI, Realized Loss
Equity Securities, FV-NI, Realized Loss
Qualified wages per employee
Qualified Wages Per Employee
Qualified wages per employee.
Premium Collected
Reinsurance Premium Received
Reinsurance premium received.
Disposal Groups, Including Discontinued Operations [Table Text Block]
Disposal Groups, Assets & Liabilities
Program Provide Sufficient Coverage Period
Program provides sufficient coverage period.
Program provides sufficient coverage period
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Valuation Allowance
Other Security Investments [Member]
Other Investments
Short-Term Investments [Member]
Short-term Investments
Retained Earnings (Accumulated Deficit)
Retained earnings (deficit)
Fair Value, Inputs, Level 3 [Member]
Level 3
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures
Less: Number of Restricted Shares Forfeited
Number of Reportable Segment
Number of reportable segment.
Number of reportable segment
Increase (Decrease) in Accounts Payable
Accounts payable and accrued expenses
Revenues [Abstract]
REVENUE:
Reinsurance Recoverable [Axis]
Reinsurance Recoverable [Axis]
Reinsurance Recoverable [Axis]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Organization, Consolidation and Presentation
Fair Value Measurement Inputs and Valuation Techniques [Table]
Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities:
Other Corporate Bonds [Member]
Corporate Securities
Stock Issued During Period, Shares, New Issues
Stock Issued During Period, Shares, New Issues
Issuance of common stock, including exercise of stock options, Shares
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed
Percentage of principal amount of the notes to be redeemed
Equipment Expense
Equipment Expense
Software & equipment costs
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract]
Incurred related to:
Intangible Asset, Finite-Lived, Accumulated Amortization
Accumulated amortization
Treasury share repurchases, Value
Stock Repurchased During Period, Value
Treasury share repurchases, Value
Equity Securities, FV-NI, Unrealized Gain (Loss)
Net unrealized gains on equity securities
Continuing Operations [Member]
Continuing Operations
Certificates of Deposit [Member]
Certificates of Deposit
Restricted Cash
Restricted cash
Total restricted cash
Reinsurance, Excess Retention, Amount Reinsured, Per Event
Reinsurance, excess retention, amount reinsured, per event
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization
Less: accumulated depreciation and amortization
Deferred Policy Acquisition Costs, Amortization Expense
Policy acquisition costs
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
Attachment point amount
Attachment Point Amount
Attachment point amount.
Related Party Transactions [Abstract]
Related Party Transactions [Abstract]
Long-Lived Asset, Class [Axis]
Long-Lived Tangible Asset [Axis]
Disposal Group, Including Discontinued Operation, Assets
Total assets
Assets held for sale
Subsequent Events [Text Block]
Subsequent Events
Proceeds from Divestiture of Interest in Consolidated Subsidiaries
Net proceeds from sale of former subsidiary
Long-Term Debt [Text Block]
Long-term Debt
Other Income
Other revenue
Other General and Administrative Expense
Other General and Administrative Expense
Other general and administrative
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Expected volatility
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
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Effect of dilutive securities
Property, Plant, and Equipment [Line Items]
Property, Plant and Equipment
Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period
Acquired finite-lived intangible assets, weighted average life
Corporate Debt Securities [Member]
Corporate Securities
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Risk-free interest rate
Fixed maturities
Total
Fair Value
Fixed maturities, available-for-sale
Payments of Stock Issuance Costs
Payments of Stock Issuance Costs
Number of Wholly-Owned Subsidiaries [Table]
Number of Wholly-Owned Subsidiaries [Table]
Number of Wholly-Owned Subsidiaries [Table]
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization, Disposition
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment
Kroll Bond Rating Agency, LLC If Announced Upgrade Of Rating [Member]
Kroll Bond Rating Agency, LLC if announced upgrade of rating.
Kroll Bond Rating Agency, LLC if Announced Upgrade of Rating
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Outstanding (fair value)
Weighted Average Grant Date Fair Value Outstanding
Weighted Average Grant Date Fair Value Outstanding
Investments, Fair Value Disclosure [Abstract]
Fair Value at Sale
Liabilities and Equity
Total Liabilities and Stockholders' Equity
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Expected annual dividend yield
Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price
Weighted Average Exercise Prices,Options Exercisable
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Number of Shares
Less: Number of Stock Options Forfeited
Debt Securities, Available-for-Sale, Realized Loss
Debt Securities, Available-for-Sale, Realized Loss
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Income from continuing operations, net of tax
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
Intangible Asset, Finite-Lived, Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Document Fiscal Period Focus
Document Fiscal Period Focus
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
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Income (loss) before income taxes
Income before income taxes
Statutory Accounting Practices Disclosure [Table Text Block]
Schedule of Statutory Accounting and Regulation
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Prepaid Reinsurance Premiums
Ceded uneared premiums
Ceded unearned premiums
Public Utility, Bonds [Member]
Public Utilities
Title and Position [Axis]
Title of Individual [Axis]
Property, Plant, and Equipment [Table]
Property, Plant and Equipment [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss)
Cost, Depreciation and Amortization
Cost, Depreciation and Amortization
Depreciation and amortization
Cost, Depreciation and Amortization, Total
Income Taxes Paid (Refunded)
Income taxes paid (refunded).
State income taxes paid (refunded)
Costs and Expenses [Abstract]
EXPENSES:
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
Increase (Decrease) in Accrued Investment Income Receivable
Accrued investment income
Number of Majority Owned Subsidiaries
Number of Majority Owned Subsidiaries
Number of Majority Owned Subsidiaries
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Entity Current Reporting Status
Entity Current Reporting Status
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Number of Stock Options Exercisable
Fair Value, Inputs, Level 1 [Member]
Level 1
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
Intangible Asset, Finite-Lived, Remaining Amortization Period
Weighted-average remaining amortization period (in years)
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price
Weighted Average Exercise Prices, Options Outstanding
Weighted Average Exercise Prices,Options Outstanding
Investment Type [Axis]
Investment Type [Axis]
Financial Instrument [Axis]
Financial Instrument [Axis]
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax
Change in net unrealized losses on investments, Pre-Tax Amount
Change in net unrealized gains on investments
Accumulated Amortization, Debt Issuance Costs
Amortization
Document Transition Report
Document Transition Report
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value
Aggregate Intrinsic Value,Options Granted
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Subsequent Event [Line Items]
Shares Issued Under At the Market Program
Shares Issued Under At the Market Program
Shares Issued Under At the Market Program
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Investment Income, Investment Expense
Investment expenses
Schedule of Unrealized Loss on Investments [Table Text Block]
Schedule of Unrealized Loss on Investments
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Unrecognized stock compensation expense
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Debt Securities, Trading, and Equity Securities, FV-NI
Liability for Unpaid Claim and Claim Adjustment Expense, Change [Table]
Share-Based Payment Arrangement [Abstract]
Share-based Payment Arrangement [Abstract]
Disposal Group Name [Axis]
Deferred Policy Acquisition Cost
Deferred policy acquisition costs
Deferred Policy Acquisition Cost, Ending Balance
Deferred Policy Acquisition Cost, Beginning Balance
Deferred policy acquisition costs, net
Interboro Insurance
Interboro Insurance [Member]
Interboro Insurance
IIC
Total Lease Future Payments Year 4
Total Lease Future Payments Year 4
2029
Common Stock [Member]
Common Stock
Property, Plant, and Equipment, before Accumulated Depreciation, Disposition
Property, Plant and Equipment, Disposals
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Cost or Amortized Cost
Debt Securities, Available-for-Sale [Line Items]
Schedule of Available-for-sale Securities
Payment of Treasury Stock
Payment of treasury stock
Treasury stock
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense
Intangible Asset, Finite-Lived, before Accumulated Amortization
Gross carrying amount
Director [Member]
Director
Equity, Attributable to Parent [Abstract]
Stockholders' Equity
Weighted Average Number of Shares Outstanding, Basic
Weighted average shares outstanding, Basic
Weighted-average shares outstanding
Income (Loss) from Continuing Operations, Per Diluted Share
Continuing operations
Property, Plant, and Equipment [Abstract]
Property, Plant and Equipment [Abstract]
Assets [Abstract]
ASSETS
Operating Lease, Expense
Operating lease expense
Operating lease expense
Entity Central Index Key
Central Index Key
Insurance subsidiary issued amount
Insurance Subsidiary Issued Amount
Insurance subsidiary issued.
US Treasury and Government [Member]
U.S. Government and Agency Securities
Second Event Retention Level
Second event retention level.
Second event retention level
Surplus Note [Member]
Surplus note.
Surplus Note
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Aggregate Intrinsic Value,Options Exercisable
Percentage of gross proceeds from sale of shares
Percentage Of Gross Proceeds From Sale Of Shares
Percentage of gross proceeds from sale of shares.
Consolidation Items [Axis]
Consolidation Items [Axis]
Current Fiscal Year End Date
Current Fiscal Year End Date
Document Quarterly Report
Document Quarterly Report
All Other Perilds Catastrophe Excess of Loss
All Other Perilds Catastrophe Excess of Loss [Member]
All Other Perilds Catastrophe Excess of Loss
Debt Instrument, Maturity Date
Debt Instrument, Maturity Date
Debt Securities, Available-for-Sale [Table]
Schedule of Available-for-sale Securities [Table]
Reinsurance Recoverable, Credit Loss Expense (Reversal)
Reinsurance Recoverable, Provision for (reversal of) expected credit losses
Disposal Group Name [Domain]
Net Investment Income [Line Items]
Net Investment Income
Other Long-Term Investments
Other investments
Other investments
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Period Increase (Decrease)
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Period Increase (Decrease), Total
Credit loss allowance changes
Fair Value, Inputs, Level 2 [Member]
Level 2
Investment Income, Net
Net investment income
Net investment income
Unrealized Gain (Loss) on Investments
Unrealized Gain (Loss) on Investments
Net unrealized gains on equity securities
Net unrealized gains on equity securities
Statutory Net Income [Table]
Statutory Net Income [Table]
Statutory Net Income [Table]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets
Net Cash Provided by (Used in) Operating Activities
Net cash provided by operating activities
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Restricted Cash [Abstract]
Restricted Cash [Abstract]
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
Earnings Per Share, Diluted
Total
Earnings available to ACIC common stockholders per share, Diluted
Total
Preferred Stock, Par or Stated Value Per Share
Preferred stock, par value
Operating Lease, Weighted Average Discount Rate, Percent
Weighted average discount rate
Net income
Net income attributable to ACIC common stockholders
Fair Value Adjustment of Warrants
Fair value of warrants
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
Increase (Decrease) in Other Operating Assets
Other assets
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Former gain contingency, recognized in current period
Former Gain Contingencies, Recognized in Current Period
Former gain contingencies, recognized in current period.
Long-Lived Asset, Class [Domain]
Long-Lived Tangible Asset [Domain]
Share Repurchase Program, Authorized, Number of Shares
Gain (Loss) on Disposition of Assets
Gain (Loss) on Disposition of Assets
Fixed asset and intangible asset disposals
Refundable tax credit percent.
Refundable Tax Credit Percent
Refundable tax credit percent
Income tax benefit related to items of other comprehensive income
Other Comprehensive Income (Loss), Tax
Other Comprehensive Income (Loss), Tax, Total
Income tax benefit related to items of other comprehensive income
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range
Event Retention Level
Event Retention Level
Event retention level
Reinsurance, Reinsured Risk, Percentage
Cession Rate
Discontinued Operations - Results of Ops IIC
Discontinued Operations - Results of Ops IIC [Table Text Block]
Schedule of Discontinued Operations - Results of Ops IIC
Income Tax Jurisdiction [Domain]
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10
Due after ten years
Stockholders' Equity Narrative [Abstract]
Stockholders' Equity Narrative [Abstract]
Stockholders' Equity Narrative [Abstract]
Measurement Frequency [Domain]
Equity Components [Axis]
Equity Components [Axis]
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
Net Cash Provided by (Used in) Investing Activities [Abstract]
INVESTING ACTIVITIES
Gain (Loss) on Investments
Net realized investment losses
Net realized investment gains
Available-for-sale, Gross Realized Losses, Fair Value at Sale
Available-for-sale, Gross Realized Losses, Fair Value at Sale
Fair value at sale
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Employee Benefits and Share-Based Compensation
Employee Benefits and Share-Based Compensation
Employee compensation
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Less: Weighted Average Exercise Prices,Options Exercised
Net Investment Income
Investment income
Dividends Declared [Table Text Block]
Schedule of Dividends Declared
Lease Assets and Liabilities [Abstract]
Lease Assets and Liabilities [Abstract]
Lease Assets and Liabilities [Abstract]
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
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
Premium Receivable, Allowance for Credit Loss
Premium Receivable Credit Loss Allowance
Premium Receivable, Beginning Balance
Premium Receivable, Ending Balance
Reinsurance Disclosures [Abstract]
Reinsurance Disclosures [Abstract]
Intangible Asset, Excluding Goodwill, after Accumulated Amortization
Intangible Assets, Net (Excluding Goodwill)
Intangible assets, net
Total
Insurance Commissions and Fees, Flood Program
Insurance Commissions and Fees, Flood Program
Insurance commissions and fees under Flood Program
Asset, Held-in-Trust
Assets Held-in-trust
Trust funds
Depreciation, Depletion and Amortization
Depreciation and amortization expense
Warrants Issued During Period to Purchase Common Stock
Warrants issued during period to purchase common stock.
Warrants issued to purchase common stock
Other Non Cash Transactions
Other non cash transactions.
Other non-cash transactions
Equity Securities, FV-NI
Equity securities
Investments [Abstract]
Investments, at fair value:
Preferred Stock, Shares Authorized
Preferred stock, authorized shares
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
Schedule of Realized Gain (Loss) [Table Text Block]
Schedule of Realized Gain (Loss)
Gain (loss) on disposition of intangible assets
Gain (Loss) on Disposition of Intangible Assets
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
Measurement Input, Expected Term [Member]
Expected Term
Disposal Group, Including Discontinued Operation, Assets [Abstract]
ASSETS
Number of Operating Segments
Number of operating segments
Available-for-sale, Gross Realized Gains, Fair Value at Sale
Available-for-sale, Gross Realized Gains, Fair Value at Sale
Fair value at sale
Insurance Bond Term
Insurance bond term.
Insurance bond term
Collateralized Mortgage-Backed Securities [Member]
Mortgage-backed securities
Disaggregation Of Relevant Expense Captions [Abstract]
Disaggregation of relevant expense captions.
Parent [Member]
Parent
Finance Lease, Liability, to be Paid, Maturity [Table Text Block]
Lease Liability Cash Activity
Subsidiary
Subsidiary [Domain]
Subsidiary [Domain]
Kroll Bond Rating Agency, LLC Announced Downgrade Of Rating [Member]
Kroll Bond Rating Agency, LLC announced downgrade of rating.
Kroll Bond Rating Agency, LLC Announced Downgrade of Rating
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments
Partnership unfunded commitments
Retension Loss Events
Retension loss events.
Retension loss events
Short-Duration Insurance and Deposit Contracts [Text Block]
Liability for unpaid losses and loss adjustment expense
Other Comprehensive Income (Loss), Net of Tax [Abstract]
OTHER COMPREHENSIVE INCOME:
Percentage of written premiums
Percentage of Written Premiums
Percentage of written premiums.
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]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]
Equity Securities Fair Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Outstanding shares
Number of Stock Options Outstanding
Number of Stock Options Outstanding
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
Fair Value
Accumulated Amortization of Software and Hardware
Accumulated Amortization of Software and Hardware
Accumulated Amortization of Software and Hardware
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Unrealized Loss
Gross Unrealized Losses
Intangible Asset, Goodwill and Other [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Program Provide Sufficient Coverage Return Period
Program provides sufficient coverage return period.
Program provides sufficient coverage return period
Change in Operating Lease Liability
Change in Operating Lease Liability
Operating lease liability
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Document Type
Document Type
Summary Of Premium Received And Capital At Risk [Table Text Block]
Summary Of Premium Received And Capital At Risk [Table Text Block]
Summary of Premium Received and Capital at Risk
Net Cash Provided by (Used in) Operating Activities [Abstract]
OPERATING ACTIVITIES
Disposal Group, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of subsidiary
Gain (Loss) on Disposition of Stock in Subsidiary
Loss on sale of subsidiary
Liabilities and Equity [Abstract]
LIABILITIES AND STOCKHOLDERS' EQUITY
Subsequent Event [Member]
Subsequent Event
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
Operating Income (Loss)
Operating Income (Loss)
Income before other income
Measurement Input, Risk Free Interest Rate [Member]
Risk-free Interest Rate
Weighted Average Lease Terms [Abstract]
Weighted Average Lease Terms [Abstract]
Weighted Average Lease Terms [Abstract]
Agency Agreements [Member]
Agency agreements.
Agency Agreements
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Loss
Class A Coverage
Class A Coverage [Member]
Class A Coverage.
Equity Securities, FV-NI, Realized Gain
Equity Securities, FV-NI, Realized Gain
Entity File Number
Entity File Number
Association Fees
Association Fees
Association Fees [Member]
Association fees
Income Tax Jurisdiction, Domestic Federal [Member]
Federal
Disposal Group Including Discontinued Operation Revenue [Abstract]
Disposal group including discontinued operation revenue.
REVENUE:
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Lessee, Operating Lease, Liability, Maturity
Operating Activities [Domain]
Operating Activities [Domain]
Retained Earnings [Member]
Retained Earnings (Deficit)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share, Total
Discontinued operations
Investment in Debt and Equity Securities and Other Trading Assets [Text Block]
Investments
Debt Instrument, Term
Debt Instrument, Term
150M Senior Notes [Member]
150M Senior Notes [Member]
150M Senior Notes
Measurement Input, Expected Dividend Rate [Member]
Expected Annual Dividend Yield
Entity Registrant Name
Registrant Name
Catastrophe Reinsurance Contract [Domain]
Catastrophe Reinsurance Contract [Domain]
Catastrophe Reinsurance Contract [Domain]
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Total Lease Future Payments Year 1
Total Lease Future Payments Year 1
2026
Discontinued Operations [Member]
Discontinued Operations
Accumulated Other Comprehensive Income (Loss), Tax (Expense) Benefit
Accumulated Other Comprehensive Income (Loss), Tax (Expense) Benefit
Accumulated Other Comprehensive Income (Loss), Tax (Expense) Benefit
Land [Member]
Land
Third Event Retention Level
Third Event Retention Level
Third event retention level
Total Credit Loss Allowances
Total Credit Loss Allowances
Total Credit Loss Allowances, Beginning Balance
Total Credit Loss Allowances, Ending Balance
Total Credit Loss Allowances, Beginning Balance
Trade Names [Member]
Trade Names
Entity Address, Address Line One
Entity Address, Address Line One
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Discontinued Operations
Increase (Decrease) in Liability for Claims and Claims Adjustment Expense Reserve
Unpaid losses and loss adjustment expenses
Reinsurance Contract
Reinsurance Contract [Domain]
Reinsurance Contract [Domain]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Less: Number of Stock Options Exercised
Reinsurer, Name [Domain]
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost
Asset and mortgage backed securities
Reinsurance Contract [Axis]
Sale and Realized Loss on Fixed Maturity Portfolio
Sale And Realized Loss On Fixed Maturity Portfolio [Member]
Sale and realized loss on fixed maturity portfolio.
Proceeds from Divestiture of Businesses
Cash proceeds received
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flows Information
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Non-Vested Common Stock Grants [Abstract]
Non-Vested Common Stock Grants [Abstract]
Non-Vested Common Stock Grants [Abstract]
Entity Small Business
Entity Small Business
Discontinued Operations - Results of Ops UPC
Discontinued Operations - Results of Ops UPC [Table Text Block]
Discontinued Operations - Results of Ops UPC
Ceded losses - All Other Perils Contract
Ceded losses - All Other Perils Contract
Ceded losses - All Other Perils Contract
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
Reinsurance recoverable on unpaid losses and loss adjustment expenses
Reinsurance recoverable for unpaid claims and claims adjustments, Beginning balance
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments, Total
Reinsurance recoverable for unpaid claims and claims adjustments, Ending balance
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Aggregate Intrinsic Value,Options Vested
Catastrophe Excess of Loss
Catastrophe Excess of Loss [Member]
Catastrophe Excess of Loss
Exercise Price Range [Axis]
Exercise Price Range [Axis]
Event Level Retention
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]
Increase (Decrease) in Deferred Policy Acquisition Costs
Deferred policy acquisition costs, net
FLORIDA
Florida
Reinsurance, Excess Retention, Amount Reinsured, Per Policy
Reinsurance, excess retention, amount reinsured, per policy
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
Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale
Proceeds from sales and maturities of fixed maturities
Proceeds from sales, maturities and repayments of fixed maturities
Long-Term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Significant Accounting Policies [Text Block]
Significant Accounting Policies
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Less: Weighted Average Exercise Prices,Options Expired
Provision For Credit Losses (Reversal)
Provision for credit losses (reversal).
Provision for (reversal of) expected credit losses
Increase (Decrease) in Unearned Premiums
Unearned premiums
Consolidation Items [Domain]
Consolidation Items [Domain]
Other Assets
Other assets, net
Other Assets, Total
Other assets
Schedule of Long-Term Debt Instruments [Table Text Block]
Schedule of Long-term Debt Instruments
Catastrophe Bond [Member]
Catastrophe bond.
Catastrophe Bond
Real Estate Management LLC [Member]
Real estate management LLC member.
Real Estate Management LLC
Earnings Per Share [Abstract]
Earnings available to ACIC common stockholders per share
US States and Political Subdivisions Debt Securities [Member]
States, Municipalities and Political Subdivisions
Credit Loss Allowance Activity [Table]
Credit Loss Allowance Activity [Table Text Block]
Allowance For Expected Credit Losses
Fixed Maturities [Member]
Fixed Maturities
Premiums Earned, Net
Net premiums earned
Net premiums earned
Mutual Fund [Member]
Mutual Fund
Loss Contingency Accrual
Loss Contingency Accrual
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Premium Receivable, Allowance for Credit Loss, Writeoff
Premium Receivable, Allowance for Credit Loss, Writeoff
Premium Receivable, Allowance for Credit Loss, Writeoff
Debt Instrument, Redemption, Description
Debt instrument, redemption description
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
Reinsurance Recoverable, Allowance for Credit Loss
Reinsurance Recoverable Credit Loss Allowance
Reinsurance Recoverable, Beginning Balance
Reinsurance Recoverable, Allowance for Credit Loss, Total
Reinsurance Recoverable, Ending Balance
Equity [Text Block]
Stockholders' Equity
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
Program Provides Sufficient Coverage Period
Program provides sufficient coverage period.
Program provides sufficient coverage period
Measurement Frequency [Axis]
CARES Act Federal Income Tax Impact
CARES Act Federal Income Tax Impact
CARES Act Federal Income Tax Impact
Net Cash Provided by (Used in) Financing Activities [Abstract]
FINANCING ACTIVITIES
Reinsurance Payable
Reinsurance Payable
Reinsurance payable on premiums
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Shoreline Re [Member]
Shoreline Re.
Shoreline Re
Liabilities [Abstract]
Liabilities
Restrictions on Cash and Cash Equivalents [Table Text Block]
Restrictions on Cash and Cash Equivalents
Entity Tax Identification Number
Entity Tax Identification Number
Investment Income [Table Text Block]
Investment Income
Treasury Stock, Common, Shares
Treasury stock
Employee Retention Tax Credit Refund
Employee retention tax credit refund.
Employee retention tax credit refund
Employee retention tax credit refunds
Equity Component [Domain]
Equity Component [Domain]
Intangible Asset, Excluding Goodwill, Indefinite-Lived
Indefinite-lived intangible assets
Operating Activities [Axis]
Operating Activities [Axis]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Total comprehensive income
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Reclassification adjustment for net realized gains, Net-of-Tax Amount
Fair Value of Limited Partnership Interest
Fair Value of Limited Partnership Interest
Fair Value of Limited Partnership Interest
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 on disposition of former subsidiary
Entity Address, City or Town
Entity Address, City or Town
External Third Party [Member]
External third-party.
External Third-Party
Catastrophic Event [Axis]
Subsidiary
Subsidiary [Axis]
Subsidiary [Axis]
Measurement Input Type [Domain]
Warrents [Member]
Warrents member.
Warrants
Reinsurance Recoverable
[Line Items] for Reinsurance Recoverable [Table]
Reinsurance Recoverable [Line Items]
Entity Common Stock, Shares Outstanding
Common Stock, Shares, Outstanding
Investments Classified by Contractual Maturity Date [Table Text Block]
Investments Classified by Contractual Maturity Date
Insurance [Abstract]
Insurance [Abstract]
Schedule of Debt [Table Text Block]
Debt Issuance Cost Rollforward
Proceeds from Sale and Maturity of Other Investments
Proceeds from sale and maturity of other investments
Proceeds from sales, maturities and repayments of other investments
Intangible Asset and Goodwill [Text Block]
Goodwill and Intangible Assets
Reinsurance, excess retention level per event
Reinsurance, Excess Retention Level Per Event
Reinsurance, excess retention level per event.
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Denominator
Weighted Average Lease Terms
Weighted Average Lease Terms [Table Text Block]
Weighted Average Lease Terms
Allowance for Credit Loss [Abstract]
Statement [Table]
Statement [Table]
Debt Securities, Available-for-Sale, Realized Gain (Loss)
Debt Securities, Available-for-Sale, Realized Gain (Loss)
Debt Securities, Available-for-Sale, Realized Gains (Losses)
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture
Stock compensation, Shares
Share-Based Payment Arrangement, Expense
Pre-Tax Expense
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Income before income taxes
Entity Shell Company
Entity Shell Company
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Expected term
Net Cash Provided by (Used in) Investing Activities
Net cash provided by investing activities
Other Income and Expenses [Abstract]
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax
Income (loss) from discontinued operations, net of tax
Statement [Line Items]
Statement [Line Items]
Software, Internally Developed [Member]
Software in Progress
Statutory Net Income [Line Items]
Statutory Net Income [Line Items]
Statutory Net Income [Line Items]
Lessor, Operating Lease, Term of Contract
Lease term of commercial office space
Cash, Cash Equivalents And Short-Term Investments [Member]
Cash, Cash Equivalents And Short-Term Investments [Member]
Cash and cash equivalents
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
Discontinued operations
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
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Less: Number of Restricted Shares Vested
Maximum
Maximum [Member]
Comprehensive Income [Member]
Comprehensive Income
Accumulated Other Comprehensive Loss
Available-for-sale Securities, Fair Value Disclosure, Percent of Total
Available-for-sale Securities, Fair Value Disclosure, Percent of Total
Total
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Notes Payable, Other Payables [Member]
Florida State Board of Administration
Ceded Credit Risk [Table]
Increase (Decrease) in Other Operating Liabilities
Other liabilities
Increase (Decrease) in Deferred Income Taxes
Deferred income taxes, net
Deferred income taxes, net
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Event Occurrence Limit
Event occurrence limit.
Event occurrence limit
Insurance Coverage Maturity Date
Insurance coverage maturity date.
Insurance coverage maturity period
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
LIABILITIES
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
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect
Increase in cash, cash equivalents and restricted cash, including cash classified as assets held for sale
Subsequent Events [Abstract]
Subsequent Events [Abstract]
Investments, Debt and Equity Securities [Abstract]
Investments, Debt and Equity Securities [Abstract]
Payment, Tax Withholding, Share-Based Payment Arrangement
Tax withholding payment related to net settlement of equity awards
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
Earnings Per Share, Basic [Abstract]
Basic
Investments
Total investments
Equity securities, FV-NI Percent of Total
Equity securities, FV-NI Percent of Total
Percent of Total
Financing Receivable Portfolio Segment [Axis]
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
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Paid related to:
First Event Retention Level
First Event Retention Level
First event retention level
Payments to Acquire Equity Securities, FV-NI
Payments to Acquire Equity Securities, FV-NI
Payments to Acquire Equity Securities, FV-NI
Purchases of Equity securities
Debt Issuance Costs, Net
Debt Issuance Costs, Net
Debt Issuance Costs, Net, Total
Beginning balance
Ending balance
American Coastal Insurance Company
American Coastal Insurance Company [Member]
American Coastal Insurance Company
AmCoastal
Sale of Stock, Consideration Received on Transaction
Sale of Stock, Consideration Received on Transaction
Intangible Asset, Excluding Goodwill, Impairment Loss
Impairment of Intangible Assets (Excluding Goodwill), Total
Impairment of amortizing or non-amortizing intangible assets
Intangible Asset, Finite-Lived, Acquired [Table Text Block]
Schedule of Acquired Finite-Lived Intangible Assets Weighted Average Life
Leases [Abstract]
Leases [Abstract]
Stock Issued During Period, Value, Restricted Stock Award, Gross
Stock compensation
Document Fiscal Year Focus
Document Fiscal Year Focus
Gain (Loss) on Disposition of Business
Loss on disposal
Accretion (Amortization) of Discounts and Premiums, Investments
Bond amortization and accretion
Bond amortization and accretion
Common Stock, Shares, Outstanding
Common stock, outstanding shares
Beginning balance, Shares
Ending balance, Shares
Ceded Credit Risk [Line Items]
Software in progress.
Software in progress
Software in progress
Reinsurance Recoverable [Table Text Block]
Reinsurance Recoverables [Table Text Block]
Reinsurance Recoverables
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax
Reclassification adjustment for net realized investment gains
Reclassification adjustment for realized gains, Pre-Tax Amount
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Restrictions on Cash and Cash Equivalents [Table]
Restrictions on Cash and Cash Equivalents [Table]
Financial Instruments [Domain]
Financial Instruments [Domain]
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.
Less: Aggregate Intrinsic Value,Options Expired
Director and Office Liability Insurance Limit
Director and Office Liability Insurance Limit
Director and Office Liability Insurance Limit
Building
Building [Member]
Investment Income [Table]
Investment Income [Table]
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
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments
Reinsurance recoverable on paid and unpaid losses, net
Reinsurance recoverable
Reinsurance recoverable on paid and unpaid losses, net
CARES Act Deferred Tax Asset Impact
CARES Act Deferred Tax Asset Impact
CARES Act Deferred Tax Asset Impact
Debt Securities, Held-to-Maturity, Transfer in, Allowance for Credit Loss, Expense
Credit Loss Change, Available-for-Sale Investments
Quota Share Agreement [Member]
Quota share agreement.
Quota Share Agreement
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
Change in Gross Unearned Premiums
Change in Gross Unearned Premiums
Change in gross unearned premiums
Change in gross unearned premiums
Treasury Stock, Value
Treasury shares, at cost: 2,016,809 shares and 212,083 shares, respectively
Security Exchange Name
Security Exchange Name
Valuation Allowance [Abstract]
Valuation Allowance [Abstract]
Proceeds from Income Tax Refunds
Income taxes refunded
Federal income taxes paid
Measurement Input Type [Axis]
Reinsurance Capital At Risk
Reinsurance capital at risk.
Capital at Risk
UPC Re
UPC Re
UPC Re [Member]
Revenues
Total revenue
Total revenue
Total revenue
New Accounting Pronouncements, Policy [Policy Text Block]
Pending Accounting Pronouncements
Refundable Tax Credit
Refundable tax credit.
Refundable tax credit
Entity Address, State or Province
Entity Address, State or Province
Audit Fees
Audit Fees [Domain]
Audit fees
Audit fees.
Outside of Interboro Insurance Company Stand Alone Results, Discontinued Operation [Member]
Outside of IIC stand alone results, discontinued operation.
Outside of Interboro Insurance Company Stand Alone
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
Schedule of Unrealized Loss on Investments
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Liability for unpaid claims and claims adjustment expense, claims paid, current year
Operating lease assets
Operating Lease, Right-of-Use Asset
Lease Costs [Abstract]
Lease Costs [Abstract]
Lease Costs [Abstract]
Premium Receivable, Credit Loss Expense (Reversal)
Premium Receivable, Credit Loss Expense (Reversal)
Premium Receivable, Provision for (reversal of) expected credit losses
Amendment Flag
Amendment Flag
Insurance Coverage Amount
Insurance coverage amount.
Insurance coverage amount
Disposal Group Including Discontinued Operation Expenses [Abstract]
Disposal group including discontinued operation expenses.
EXPENSES:
Share-Based Payment Arrangement [Text Block]
Stock-Based Compensation
Other Nonoperating Income (Expense)
Other income (loss)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Cash, cash equivalents and restricted cash at beginning of period
Cash, cash equivalents and restricted at end of period
Total cash, cash equivalents and restricted cash
[Line Items] for Credit Loss Allowance Activity [Table]
Credit Loss Allowance Activity [Line Items]
Allowance For Expected Credit Losses
[Domain] for Reinsurance Recoverable [Axis]
Reinsurance Recoverable [Domain]
Reinsurance Recoverable [Domain]
Financing Receivable Portfolio Segment [Domain]
Total Lease Liability Undiscounted Excess Amount
Total Lease Liability Undiscounted Excess Amount
Less: Imputed interest
City Area Code
City Area Code
Credit Loss [Abstract]
Credit Loss [Abstract]
Lease Assets and Liabilities [Table Text Block]
Lease Assets and Liabilities [Table Text Block]
Lease Assets and Liabilities
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
Schedule of Other Operating Cost and Expense, by Component
Subsequent Event Retention Level
Subsequent Event Retention Level
Subsequent event retention level
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Proceeds from Issuance of Common Stock
Proceeds from issuance of common stock, including exercise of stock options
Issuance of common stock, including exercise of stock options
Increase (Decrease) in Reinsurance Recoverable
Reinsurance recoverable on paid and unpaid losses
Equity Securities without Readily Determinable Fair Value [Line Items]
Other Investments
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions
Computer Equipment [Member]
Computer Hardware and Software
Proceeds from Sale of Equity Securities, FV-NI
Proceeds from sale of equity securities, FV-NI
Proceeds from sales, maturities and repayments of equity securities
Capitalized Software Disposal - Gross
Capitalized Software Disposal - Gross
Capitalized Software Disposal - Gross
Increase (Decrease) in Premiums Receivable
Premiums receivable
Prior Year Claims and Claims Adjustment Expense
Prior year claims and claims adjustment expense
Unearned Premiums
Unearned Premiums
Unearned premiums
Other Liabilities
Other Liabilities
Other Liabilities, Total
Other liabilities
Income (Loss) from Continuing Operations, Per Basic Share
Continuing operations
Common Stock, Par or Stated Value Per Share
Common stock, par value
Reinsurance [Text Block]
Reinsurance
Excess Per Risk Agreement
Excess Per Risk Agreement [Member]
Excess per risk agreement.
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Number of Stock Options Vested
Nonredeemable Preferred Stock [Member]
Nonredeemable Preferred Stocks
Increase (Decrease) in Reinsurance Payables
Reinsurance payable on premiums
Leasehold Improvements [Member]
Leasehold Improvements
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization
Total, at cost
Property, Plant and Equipment, Gross, Ending Balance
Property, Plant and Equipment, Gross, Beginning Balance
Property, Plant and Equipment, Gross, Total
Property and equipment
Share-Based Payment Arrangement, Option, Exercise Price Range [Table]
Share-based Payment Arrangement, Option, Exercise Price Range [Table]
Consolidated Entity Excluding Noncontrolling Interests
Consolidated Entity Excluding Noncontrolling Interests [Member]
Consolidated Entity Excluding Noncontrolling Interests
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Trading Symbol
Trading Symbol
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
Geographical [Axis]
Property, Plant, and Equipment [Table Text Block]
Schedule of Property and Equipment
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash and Cash Equivalents Items
Subsequent Event [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted-Average Remaining Contractual Term
Exercisable contractual term
Weighted Average Remaining Contractual Term (years), Options Exercisable
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of Restricted Shares Granted
Entity Emerging Growth Company
Entity Emerging Growth Company
Other Investments Not Readily Marketable [Table Text Block]
Schedule of Investments in Limited Partnerships
Additional Paid-in Capital [Member]
Additional Paid-in Capital
Discontinued Operations - Assets & Liabilities IIC
Discontinued Operations - Assets & Liabilities IIC [Table Text Block]
Schedule of Discontinued Operations - Assets & Liabilities IIC
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
Total Lease Future Payments Year 5
Total Lease Future Payments Year 5
2030
Service Entities
Service Entities [Member]
Service Entities
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10
Due after ten years
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
Dividends
Payments of Dividends
Payments of Dividends, Total
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Less: Aggregate Intrinsic Value,Options Exercised
Fair Value Transfers Between Level One Two And Three
Fair value transfers between level one two and three.
Fair value transfer, investments between levels
Share-Based Payment Arrangement, Activity [Table Text Block]
Share-based Payment Arrangement, Activity
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
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Schedule of Warrants Fair Value Estimated Using Black-Scholes-Merton Formula
AOCI before Tax, Attributable to Parent
AOCI before Tax, Attributable to Parent
Operating Lease, Weighted Average Remaining Lease Term
Weighted average remaining lease term, operating leases
Long-Term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Reinsurance recoverable, allowance for credit loss, writeoff
Reinsurance recoverable, allowance for credit loss, writeoff
Reinsurance recoverable, allowance for credit loss, writeoff
Professional Fees
Professional Fees
Professional services
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive loss
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Income from discontinued operations, net of tax
Debt and Equity Securities, FV-NI [Line Items]
Debt and Equity Securities, FV-NI
Intangible Asset, Finite-Lived, Amortization Expense
Intangible asset amortization
Amortization of intangible assets
Share-Based Payment Arrangement, Noncash Expense
Stock based compensation
Share-Based Payment Arrangement, Expense, after Tax
Post-Tax Expense
Additional Paid in Capital
Additional paid-in capital
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities:
Cash and Cash Equivalents, at Carrying Value
Cash and Cash Equivalent, Total
Cash and cash equivalents
Cash and cash equivalents
Limited Partner [Member]
Limited Partnership
Equity Securities [Member]
Equity Securities
Share Repurchase Program, Remaining Authorized, Amount
Noncontrolling Interest [Member]
Noncontrolling Interest
Disposal Group, Including Discontinued Operation, Liabilities
Disposal Group, Including Discontinued Operation, Liabilities
Liabilities held for sale
Total liabilities
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
Additional Financial Information Disclosure [Text Block]
Disaggregation of Relevant Expense Captions
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax
Reclassification adjustment for realized gains, Tax (Expense) Benefit
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss)
Net Cash Provided by (Used in) Financing Activities
Net cash provided by (used in) financing activities
Intangible Asset, Finite-Lived, Amortization Expense [Table Text Block]
Summary of Intangible Assets Subject to Amortization and Not Fully Amortized
Discontinued Operations and Disposal Groups [Abstract]
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
OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax
Changes in net unrealized losses on investments,Tax (Expense) Benefit
Liability for Claims and Claims Adjustment Expense, by Claim Status [Abstract]
Composition of reserve for unpaid losses and LAE:
Entity Filer Category
Filer Category
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
Premiums Written, Gross
Gross premiums written
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
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One
2027
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Numerator
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Property and equipment, net
Property and equipment, net
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
Reinsurance Retention [Table]
Reinsurance Retention Policy [Table]
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
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
Provision for uncollectable reinsurance recoverables
Other State Tax Jurisdiction [Member]
All other state
Other State Tax Jurisdiction
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Liability for unpaid claims and claims adjustment expense, claims paid, prior years
Debt Security, Government, Non-US [Member]
Foreign Government
Debt Securities, Trading, and Equity Securities, FV-NI
Debt Securities, Trading, and Equity Securities, FV-NI
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Catastrophe Reinsurance Contract
Catastrophe Reinsurance Contract [Axis]
Reinsurance Contract [Axis]
Local Phone Number
Local Phone Number
Commercial Mortgage Loans [Member]
Commercial mortgage loans.
Commercial Mortgage Loans