INVESTMENTS - Contractual Maturities (Narrative) (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Debt Securities, Available-for-sale [Line Items] | ||
| Fixed maturities, held to maturity, at amortized cost | $ 407,024 | $ 397,430 |
| Allowance for expected credit losses | 0 | 0 |
| ABS | ||
| Debt Securities, Available-for-sale [Line Items] | ||
| Fixed maturities, held to maturity, at amortized cost | 245,545 | 252,293 |
| Allowance for expected credit losses | 0 | 0 |
| Held to maturity securities with no single maturity date | 246,000 | 252,000 |
| Corporate debt | ||
| Debt Securities, Available-for-sale [Line Items] | ||
| Fixed maturities, held to maturity, at amortized cost | 161,479 | 145,137 |
| Allowance for expected credit losses | 0 | 0 |
| Held-to-maturity securities with maturity after one year through three years | 44,000 | 32,000 |
| Held-to-maturity securities with maturity after three years through ten years | 115,000 | 110,000 |
| Held-to-maturity securities with maturity after ten years | $ 3,000 | $ 3,000 |
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- Definition Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in the tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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- Definition Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in the third through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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- Definition Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in the first through third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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- Definition Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) without single maturity date and not allocated over maturity grouping. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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