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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statement Of Income And Comprehensive Income [Abstract] |  |  |
Net income (loss) | $ 524,089 | $ 463,215 | $ (45,174)
Other comprehensive income (loss) before income taxes: |  |  |
Net change in unrealized gain (loss) on securities available for sale and cash flow hedges | (898,241) | (211,580) | 224,337
Reclassification of net losses realized and included in earnings | (5,947) | (15,485) | (10,983)
Valuation adjustments to pension plan attributable to the Voluntary Early Retirement Program and curtailment |  | 59,606 |
Other valuation adjustments to employee benefit plans | (24,139) | (6,735) | 37,451
Amortization of unrealized net gain (loss) on securities transferred to held to maturity | 1,355 | (158) | (470)
Other comprehensive income (loss) before income taxes | (926,972) | (174,352) | 175,433
Income tax (benefit) expense | (208,725) | (40,348) | 40,640
Other comprehensive income (loss) net of income taxes | (718,247) | (134,004) | 134,793
Comprehensive income (loss) | $ (194,158) | $ 329,211 | $ 89,619

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