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Accumulated Other Comprehensive Income (Loss) - Schedule Of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Net of Tax |  |  |
Balance at beginning of period |  | $ (350,238) |
Other comprehensive income (loss) |  |  |
Unrealized holding gains (losses) on investments arising during the period for which an allowance for expected credit losses has not been recognized |  | 53,621 | $ (34,487)
Less: Reclassification adjustment for net gains (losses) on investments included in net income: |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses |  | (1,856) | (2,910)
Net unrealized gains (losses) on investments |  | 55,477 | (31,577)
Other adjustments to other comprehensive income (loss) |  | 45 | (68)
Other comprehensive income (loss), net of tax |  | 55,522 | (31,645)
Balance at end of period |  | (294,716) |
Other Comprehensive Income (Loss) |  |  |
Before Tax |  |  |
Balance at beginning of period |  | (443,340) | (418,799)
Other comprehensive income (loss) |  |  |
Unrealized holding gains (losses) on investments arising during the period for which an allowance for expected credit losses has not been recognized |  | 67,875 | (43,655)
Less: Reclassification adjustment for net gains (losses) on investments included in net income |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses | [1] | (2,349) | (3,684)
Net unrealized gains (losses) on investments |  | 70,224 | (39,971)
Other adjustments to comprehensive income (loss), net |  | 58 | (86)
Other comprehensive income (loss) |  | 70,282 | (40,057)
Balance at end of period |  | (373,058) | (458,856)
Tax Effect |  |  |
Balance at beginning of period |  | (93,102) | (87,948)
Other comprehensive income (loss) |  |  |
Unrealized holding gains (losses) on investments arising during the period for which an allowance for expected credit losses has not been recognized |  | 14,254 | (9,168)
Less: Reclassification adjustment for net gains (losses) on investments included in net income: |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses | [1] | (493) | (774)
Net unrealized gains (losses) on investments |  | 14,747 | (8,394)
Other adjustments to comprehensive income (loss), net |  | 13 | (18)
Other comprehensive income (loss) |  | 14,760 | (8,412)
Balance at end of period |  | (78,342) | (96,360)
Net of Tax |  |  |
Balance at beginning of period |  | (350,238) | (330,851)
Other comprehensive income (loss) |  |  |
Unrealized holding gains (losses) on investments arising during the period for which an allowance for expected credit losses has not been recognized |  | 53,621 | (34,487)
Less: Reclassification adjustment for net gains (losses) on investments included in net income: |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses | [1] | (1,856) | (2,910)
Net unrealized gains (losses) on investments |  | 55,477 | (31,577)
Other adjustments to other comprehensive income (loss) |  | 45 | (68)
Other comprehensive income (loss), net of tax |  | 55,522 | (31,645)
Balance at end of period |  | $ (294,716) | $ (362,496)
[1] | Included in net gains (losses) on investments and other financial instruments in our condensed consolidated statements of operations.

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