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Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Before-Tax |  |  |  |  |
Net change | $ (278,005) |  | $ (60,299) | $ (997,274) | $ (145,143)
Tax Effect |  |  |  |  |
Net change | 78,621 |  | 17,420 | 287,623 | 43,250
Net-of-Tax |  |  |  |  |
Amortization of unrealized losses on transferred securities |  | $ (113,000) |  |  |
Other comprehensive loss | (199,384) |  | (42,879) | (709,651) | (101,893)
Debt Securities |  |  |  |  |
Before-Tax |  |  |  |  |
Net unrealized losses arising during the period | (229,246) |  | (58,138) | (902,548) | (143,131)
Net realized gains reclassified into net income | 0 |  | (354) | (1,306) | (1,178)
Amortization of unrealized losses on transferred securities | 4,623 |  | 0 | 13,228 | 0
Net change | (224,623) |  | (58,492) | (890,626) | (144,309)
Tax Effect |  |  |  |  |
Net unrealized losses arising during the period | 67,801 |  | 17,210 | 266,884 | 42,384
Net realized gains reclassified into net income | 0 |  | 104 | 386 | 348
Amortization of unrealized losses on transferred securities | (1,367) |  | 0 | (3,911) | 0
Net change | 66,434 |  | 17,314 | 263,359 | 42,732
Net-of-Tax |  |  |  |  |
Net unrealized gains (losses) arising during the period | (161,445) |  | (40,928) | (635,664) | (100,747)
Net realized gains reclassified into net income | 0 |  | (250) | (920) | (830)
Amortization of unrealized losses on transferred securities | 3,256 |  | 0 | 9,317 | 0
Net realized losses (gains) reclassified into net income | 3,256 |  | (250) | 8,397 | (830)
Other comprehensive loss | (158,189) |  | (41,178) | (627,267) | (101,577)
Cash Flow Hedges |  |  |  |  |
Before-Tax |  |  |  |  |
Net unrealized losses arising during the period | (48,325) |  | (170) | (88,771) | 150
Net realized losses (gains) reclassified into net income | 1,619 |  | 241 | (1,601) | 619
Net change | (46,706) |  | 71 | (90,372) | 769
Tax Effect |  |  |  |  |
Net unrealized losses arising during the period | 13,902 |  | 49 | 25,539 | (42)
Net realized losses (gains) reclassified into net income | (465) |  | (69) | 461 | (176)
Net change | 13,437 |  | (20) | 26,000 | (218)
Net-of-Tax |  |  |  |  |
Net unrealized gains (losses) arising during the period | (34,423) |  | (121) | (63,232) | 108
Net realized losses (gains) reclassified into net income | 1,154 |  | 172 | (1,140) | 443
Other comprehensive loss | (33,269) |  | 51 | (64,372) | 551
Foreign Currency Translation Adjustments |  |  |  |  |
Before-Tax |  |  |  |  |
Net unrealized losses arising during the period | (6,676) |  | (1,878) | (16,276) | (1,603)
Net change | (6,676) |  | (1,878) | (16,276) | (1,603)
Tax Effect |  |  |  |  |
Net unrealized losses arising during the period | (1,250) |  | 126 | (1,736) | 736
Net change | (1,250) |  | 126 | (1,736) | 736
Net-of-Tax |  |  |  |  |
Net unrealized gains (losses) arising during the period | (7,926) |  | (1,752) | (18,012) | (867)
Net realized losses (gains) reclassified into net income | 0 |  | 0 | 0 | 0
Other comprehensive loss | $ (7,926) |  | $ (1,752) | $ (18,012) | $ (867)

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