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Caret Holdings, Inc. [Member] Caret Holdings, Inc. 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Percentage Short-term investments Short-Term Investments [Member] Ownership percentage (in percent) Equity Method Investment, Ownership Percentage Net deferred tax asset Deferred Tax Assets, Net PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Due after 10 years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Forfeited, expired or canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Schedule V: Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Condensed Statement of Operations and Comprehensive Income (Loss) Condensed Statement of Comprehensive Income [Table Text Block] California CALIFORNIA Loss and Loss Adjustment Expenses Loss And Loss Adjustment Expense [Member] Loss And Loss Adjustment Expense Interest on fixed maturities and 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Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Fair Value Schedule of Anti-Dilutive Securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Total Tax Credit Carryforward, Amount Gain on lease modification Gain (Loss) On Lease Modification Gain (Loss) On Lease Modification Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Award Timing Disclosures [Line Items] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Root Property & Casualty Insurance Company Root Property & Casualty Insurance Company [Member] Root Property & Casualty Insurance Company Net loss and LAE reserves, January 1 Net loss and LAE reserves, December 31 Liability for Unpaid Claims and Claims Adjustment Expense, Net State Deferred State and Local Income Tax Expense (Benefit) REINSURANCE GEOGRAPHICAL BREAKDOWN OF GROSS PREMIUMS WRITTEN Reinsurance [Text Block] Net income (loss) Net income (loss) Net (loss) income Net Income (Loss) Attributable to Parent Tranche 5 Share-Based Payment Arrangement, Tranche Five [Member] Share-Based Payment Arrangement, Tranche Five 2026 Term Loan 2026 Term Loan [Member] 2026 Term Loan Georgia GEORGIA Schedule of Effective Income Tax Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Other adjustments Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date A+, A, A- Standard & Poor's, A Plus, A, A Minus Rating [Member] Standard & Poor's, A Plus, A, A Minus Rating Sales and Marketing General and Administrative Selling, General and Administrative Expenses, Policy [Policy Text Block] Operating income (loss) Operating Income (Loss) Florida FLORIDA Accumulated loss Accumulated loss Retained Earnings (Accumulated Deficit) Tranche 4 Share-Based Payment Arrangement, Tranche Four [Member] Share-Based Payment Arrangement, Tranche Four Provision for loss corridor Reinsurance Recoverable, Provision For Loss Corridor Reinsurance Recoverable, Provision For Loss Corridor Proceeds from issuance of convertible stock Proceeds from Issuance of Convertible Preferred Stock Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Impairment of intangible assets Impairment of 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Insurance Contracts, Accident Year [Axis] Cash flows from financing activities: Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Nondeductible compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Assumed Assumed Unearned Premiums Assumed Unearned Premiums Investment agreement, term of agreement Investment Agreement, Term Of Agreement Investment Agreement, Term Of Agreement All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized State net operating loss Effective Income Tax, Operating Loss Carryforwards, State And Local, Percent Effective Income Tax, Operating Loss Carryforwards, State And Local, Percent Direct Liability for Claims and Claims Adjustment Expense Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Short-term investments Debt Securities, Available For Sale, Current [Member] Debt Securities, Available For Sale, Current Tranche 3 Share-Based Payment Arrangement, Tranche Three [Member] Weighted-average operating lease discount rate Operating Lease, Weighted Average Discount Rate, Percent Schedule of Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Basic (in shares) Weighted-average common shares outstanding: basic (both Class A and B) (in shares) Weighted Average Number of Shares Outstanding, Basic Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Schedule of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Exercise Price Range [Domain] Exercise Price Range [Domain] Debt Disclosure [Abstract] 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Estimates Use of Estimates, Policy [Policy Text Block] Valuation allowance for deferred tax assets SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Schedule of Credit Ratings Fair Value, Concentration of Risk [Table Text Block] Options outstanding, number of shares (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Insider Trading Arrangements [Line Items] Reinsurance recoverable and receivable Increase (Decrease) in Reinsurance Recoverable Allowance for Expected Credit Losses Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Condensed Financial Information Disclosure [Table] Condensed Financial Information Disclosure [Table] Condensed Financial Information Disclosure Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Asset-backed securities Asset-Backed Securities [Member] Counterparty Name [Axis] Counterparty Name [Axis] Schedule of Restricted Stock Unit Activity Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Total Gross Investment Income, Operating Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Corporate debt securities Corporate Debt Securities [Member]