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FAIR VALUE OF FINANCIAL INSTRUMENTS - Financial Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | $ 2,205,350 | $ 1,868,331
Recurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 2,205,350 | 1,868,331
Short-Term Investments |  | 100
Corporate-Owned Life Insurance | 13,462 | 13,003
Total | 2,263,563 | 1,904,532
Recurring | Money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money Market Accounts | 44,751 | 23,098
Recurring | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 26,568 | 30,914
Short-Term Investments |  | 100
Corporate-Owned Life Insurance | 0 | 0
Total | 71,319 | 54,112
Recurring | Level 1 | Money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money Market Accounts | 44,751 | 23,098
Recurring | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 2,178,782 | 1,837,417
Short-Term Investments |  | 0
Corporate-Owned Life Insurance | 13,462 | 13,003
Total | 2,192,244 | 1,850,420
Recurring | Level 2 | Money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money Market Accounts | 0 | 0
Recurring | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Short-Term Investments |  | 0
Corporate-Owned Life Insurance | 0 | 0
Total | 0 | 0
Recurring | Level 3 | Money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money Market Accounts | 0 | 0
Recurring | US Treasury and government agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 104,104 | 117,301
Recurring | US Treasury and government agencies | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 26,568 | 30,914
Recurring | US Treasury and government agencies | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 77,536 | 86,387
Recurring | US Treasury and government agencies | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | States, municipalities and political subdivisions |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 261,734 | 247,904
Recurring | States, municipalities and political subdivisions | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | States, municipalities and political subdivisions | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 261,734 | 247,904
Recurring | States, municipalities and political subdivisions | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | Corporate |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 783,154 | 689,382
Recurring | Corporate | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 |
Recurring | Corporate | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 783,154 | 689,382
Recurring | Corporate | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | Residential mortgage-backed |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 715,597 | 583,411
Recurring | Residential mortgage-backed | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | Residential mortgage-backed | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 715,597 | 583,411
Recurring | Residential mortgage-backed | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | Commercial mortgage-backed |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 145,407 | 103,554
Recurring | Commercial mortgage-backed | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | Commercial mortgage-backed | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 145,407 | 103,554
Recurring | Commercial mortgage-backed | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 | 0
Recurring | Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 195,354 | 126,779
Recurring | Asset-backed securities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 0 |
Recurring | Asset-backed securities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | 195,354 | 126,779
Recurring | Asset-backed securities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total Fixed Maturity, Available-for-Sale | $ 0 | $ 0

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