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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement of Comprehensive Income [Abstract] |  |  |
Net income (loss) | $ 43,021 | $ (368,969) | $ 513,368
Other comprehensive income (loss), net of tax: |  |  |
Unrealized investment gains (losses) arising during the year | (291,731) | 205,419 | 5,072
Adjustment for reclassification of net realized investment (gains) losses and OTTI losses recognized in net income (loss) | 100,902 | (33,134) | 62,190
Unrealized investment gains (losses) arising during the year, net of reclassification adjustment | (190,829) | 172,285 | 67,262
Foreign currency translation adjustment | (11,165) | 41,938 | (638)
Total other comprehensive income (loss), net of tax | (201,994) | 214,223 | 66,624
Comprehensive income (loss) | $ (158,973) | $ (154,746) | $ 579,992

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