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OTHER COMPREHENSIVE INCOME (LOSS) (Tax Effects of Other Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Before tax amount |  |  |  |
Total comprehensive income (loss), net of tax | $ (85,196) | $ 75,360 | $ (297,550) | $ 203,247
Income tax (expense) benefit |  |  |  |
Total comprehensive income (loss), net of tax | 9,001 | (6,848) | 33,277 | (24,846)
Net of tax amount |  |  |  |
Total comprehensive income (loss), net of tax | (76,195) | 68,512 | (264,273) | 178,401
Available for sale investments: |  |  |  |
Before tax amount |  |  |  |
Adjustment for reclassification of net realized (gains) losses and impairment losses recognized in net income (loss) | (16,438) | (33,100) | (94,018) | (38,584)
Total comprehensive income (loss), net of tax | (81,389) | 73,050 | (298,474) | 204,828
Income tax (expense) benefit |  |  |  |
Adjustment for reclassification of net realized (gains) losses and impairment losses recognized in net income (loss) | 1,858 | 3,970 | 7,837 | 8,295
Total comprehensive income (loss), net of tax | 9,001 | (6,848) | 33,277 | (24,846)
Net of tax amount |  |  |  |
Adjustment for reclassification of net realized (gains) losses and impairment losses recognized in net income (loss) | (14,580) | (29,130) | (86,181) | (30,289)
Total comprehensive income (loss), net of tax | (72,388) | 66,202 | (265,197) | 179,982
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 | (65,321) | 105,932 | (204,587) | 243,522
Income tax (expense) benefit |  |  |  |
Unrealized gains (losses) arising during the period | 7,143 | (10,820) | 25,440 | (33,139)
Net of tax amount |  |  |  |
Unrealized gains (losses) arising during the period | (58,178) | 95,112 | (179,147) | 210,383
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 | 370 | 218 | 131 | (110)
Income tax (expense) benefit |  |  |  |
Unrealized gains (losses) arising during the period | 0 | 2 | 0 | (2)
Net of tax amount |  |  |  |
Unrealized gains (losses) arising during the period | 370 | 220 | 131 | (112)
Foreign currency translation adjustment |  |  |  |
Before tax amount |  |  |  |
Total comprehensive income (loss), net of tax | (3,807) | 2,310 | 924 | (1,581)
Income tax (expense) benefit |  |  |  |
Total comprehensive income (loss), net of tax | 0 | 0 | 0 | 0
Net of tax amount |  |  |  |
Total comprehensive income (loss), net of tax | $ (3,807) | $ 2,310 | $ 924 | $ (1,581)

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