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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following tables show the rollforward of accumulated other comprehensive income (loss) as of the periods indicated.
Rollforward of accumulated other comprehensive income (loss)
|  | Year Ended December 31, 2022
(In thousands) |  | Before Tax |  | Tax Effect |  | Net of Tax
Balance at beginning of period |  | $ | 152,016 |  |  | $ | 31,923 |  |  | $ | 120,093 |
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 |  | (740,324) |  |  | (155,468) |  |  | (584,856) |
Less: Reclassification adjustment for net gains (losses) on investments included in net income (1) |  |  |  |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses |  | (9,974) |  |  | (2,094) |  |  | (7,880) |
Net unrealized gains (losses) on investments |  | (730,350) |  |  | (153,374) |  |  | (576,976) |
Other adjustments to comprehensive income, net |  | 106 |  |  | 22 |  |  | 84 |
Other comprehensive income (loss) |  | (730,244) |  |  | (153,352) |  |  | (576,892) |
Balance at end of period |  | $ | (578,228) |  |  | $ | (121,429) |  |  | $ | (456,799) |
|  | Year Ended December 31, 2021
(In thousands) |  | Before Tax |  | Tax Effect |  | Net of Tax
Balance at beginning of period |  | $ | 333,829 |  |  | $ | 70,104 |  |  | $ | 263,725 |
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 |  | (175,234) |  |  | (36,799) |  |  | (138,435) |
Less: Reclassification adjustment for net gains (losses) included in net income (1) |  |  |  |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses |  | 5,661 |  |  | 1,189 |  |  | 4,472 |
Net decrease (increase) in expected credit losses |  | 918 |  |  | 193 |  |  | 725 |
Net unrealized gains on investments |  | (181,813) |  |  | (38,181) |  |  | (143,632) |
Other comprehensive income (loss) |  | (181,813) |  |  | (38,181) |  |  | (143,632) |
Balance at end of period |  | $ | 152,016 |  |  | $ | 31,923 |  |  | $ | 120,093 |
Rollforward of accumulated other comprehensive income (loss)
|  | Year Ended December 31, 2020
(In thousands) |  | Before Tax |  | Tax Effect |  | Net of Tax
Balance at beginning of period |  | $ | 139,858 |  |  | $ | 29,370 |  |  | $ | 110,488 |
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 |  | 226,280 |  |  | 47,519 |  |  | 178,761 |
Less: Reclassification adjustment for net gains (losses) included in net income (1) |  |  |  |  |  |
Net realized gains (losses) on disposals and non-credit related impairment losses |  | 33,468 |  |  | 7,028 |  |  | 26,440 |
Net decrease (increase) in expected credit losses |  | (1,254) |  |  | (263) |  |  | (991) |
Net unrealized gains on investments |  | 194,066 |  |  | 40,754 |  |  | 153,312 |
Other adjustments to comprehensive income, net |  | (95) |  |  | (20) |  |  | (75) |
Other comprehensive income (loss) |  | 193,971 |  |  | 40,734 |  |  | 153,237 |
Balance at end of period |  | $ | 333,829 |  |  | $ | 70,104 |  |  | $ | 263,725 |
(1)Included in net gains (losses) on investments and other financial instruments in our consolidated statements of operations.

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