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Other Comprehensive Income (Loss) - Reclassification Out of AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Before-Tax Amount |  |
Net unrealized gains/losses | $ (105,810) | $ (32,948)
Tax (Expense) Benefit |  |
Net unrealized gains/losses | 25,911 | 8,072
Net of Tax |  |
Other comprehensive loss | (79,899) | (24,876)
Net unrealized gains/losses |  |
Before-Tax Amount |  |
Change in net unrealized gain/loss during the period | (106,481) | (33,439)
Reclassification adjustment for net realized loss on sale of available-for-sale debt securities included in net income | 0 | (329)
Net unrealized gains/losses | (106,481) | (33,768)
Tax (Expense) Benefit |  |
Change in net unrealized gain/loss during the period | 26,076 | 8,193
Reclassification adjustment for net realized gain on sale included in available-for-sale securities | 0 | 80
Net unrealized gains/losses | 26,076 | 8,273
Net of Tax |  |
Change in net unrealized gain/loss during the period | (80,405) | (25,246)
Net of tax | 0 | (249)
Other comprehensive loss | (80,405) | (25,495)
Amortization of net retirement plan actuarial gain |  |
Before-Tax Amount |  |
Reclassification adjustment for net realized loss on sale of available-for-sale debt securities included in net income | 615 | 764
Tax (Expense) Benefit |  |
Reclassification adjustment for net realized gain on sale included in available-for-sale securities | (151) | (187)
Net of Tax |  |
Net of tax | 464 | 577
Amortization of net retirement plan prior service cost |  |
Before-Tax Amount |  |
Reclassification adjustment for net realized loss on sale of available-for-sale debt securities included in net income | 56 | 56
Tax (Expense) Benefit |  |
Reclassification adjustment for net realized gain on sale included in available-for-sale securities | (14) | (14)
Net of Tax |  |
Net of tax | 42 | 42
Employee benefit plans |  |
Before-Tax Amount |  |
Net unrealized gains/losses | 671 | 820
Tax (Expense) Benefit |  |
Net unrealized gains/losses | (165) | (201)
Net of Tax |  |
Other comprehensive loss | $ 506 | $ 619

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