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OTHER COMPREHENSIVE INCOME (LOSS) (Tax Effects of Other Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Before tax amount |  |  |  |
Total comprehensive income, net of tax | $ 13,293 | $ 410,368 | $ (212,353) | $ 127,886
Income tax (expense) benefit |  |  |  |
Total comprehensive income, net of tax | (1,837) | (38,850) | 24,275 | (17,997)
Net of tax amount |  |  |  |
Total comprehensive income, net of tax | 11,456 | 371,518 | (188,078) | 109,889
Available for sale investments: |  |  |  |
Before tax amount |  |  |  |
Adjustment for reclassification of net realized (gains) losses and impairment losses recognized in net income (loss) | (46,704) | (9,610) | (77,579) | (5,484)
Total comprehensive income, net of tax | 9,811 | 406,534 | (217,084) | 131,777
Income tax (expense) benefit |  |  |  |
Adjustment for reclassification of net realized (gains) losses and impairment losses recognized in net income (loss) | 3,984 | 2,794 | 5,978 | 4,325
Total comprehensive income, net of tax | (1,837) | (38,850) | 24,275 | (17,997)
Net of tax amount |  |  |  |
Adjustment for reclassification of net realized (gains) losses and impairment losses recognized in net income (loss) | (42,720) | (6,816) | (71,601) | (1,159)
Total comprehensive income, net of tax | 7,974 | 367,684 | (192,809) | 113,780
Available for sale investments: | Unrealized gains (losses) arising during the period for which an allowance for expected credit losses has not been recognized |  |  |  |
Before tax amount |  |  |  |
Unrealized gains (losses) arising during the period | 56,694 | 412,802 | (139,268) | 140,018
Income tax (expense) benefit |  |  |  |
Unrealized gains (losses) arising during the period | (5,821) | (41,514) | 18,297 | (22,050)
Net of tax amount |  |  |  |
Unrealized gains (losses) arising during the period | 50,873 | 371,288 | (120,971) | 117,968
Available for sale investments: | Unrealized gains (losses) arising during the period for which an allowance for expected credit losses has been recognized |  |  |  |
Before tax amount |  |  |  |
Unrealized gains (losses) arising during the period | (179) | 3,342 | (237) | (2,757)
Income tax (expense) benefit |  |  |  |
Unrealized gains (losses) arising during the period | 0 | (130) | 0 | (272)
Net of tax amount |  |  |  |
Unrealized gains (losses) arising during the period | (179) | 3,212 | (237) | (3,029)
Foreign currency translation adjustment |  |  |  |
Before tax amount |  |  |  |
Total comprehensive income, net of tax | 3,482 | 3,834 | 4,731 | (3,891)
Income tax (expense) benefit |  |  |  |
Total comprehensive income, net of tax | 0 | 0 | 0 | 0
Net of tax amount |  |  |  |
Total comprehensive income, net of tax | $ 3,482 | $ 3,834 | $ 4,731 | $ (3,891)

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