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Accumulated Other Comprehensive (Loss) Income - Schedule Of Components Of Other Comprehensive Income (Loss), Reclassifications To Net Income And The Related Tax Effects (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Before-Tax |  |  |  |
Net change | $ 308,347 | $ (134,036) | $ 259,725 | $ (154,395)
Tax Effect |  |  |  |
Net change | (91,478) | 40,591 | (76,433) | 44,647
Net-of-Tax |  |  |  |
Other comprehensive income (loss) | 216,869 | (93,445) | 183,292 | (109,748)
Debt Securities |  |  |  |
Before-Tax |  |  |  |
Net unrealized gains (losses) on AFS debt securities arising during the period | 187,578 | (103,183) | 196,717 | (102,262)
Net realized (gains) losses on AFS debt securities reclassified into net income | (145) | 0 | (1,979) | 10,000
Amortization of unrealized losses on transferred securities | 3,926 | 4,075 | 11,587 | 11,994
Net change | 191,359 | (99,108) | 206,325 | (80,268)
Tax Effect |  |  |  |
Net unrealized gains (losses) on AFS debt securities arising during the period | (55,448) | 30,492 | (58,096) | 30,228
Net realized (gains) losses on AFS debt securities reclassified into net income | 43 | 0 | 585 | (2,956)
Amortization of unrealized losses on transferred securities | (1,161) | (1,205) | (3,426) | (3,546)
Net change | (56,566) | 29,287 | (60,937) | 23,726
Net-of-Tax |  |  |  |
Net unrealized gains (losses) on AFS debt securities arising during the period | 132,130 | (72,691) | 138,621 | (72,034)
Net realized (gains) losses on AFS debt securities reclassified into net income | (102) | 0 | (1,394) | 7,044
Amortization of unrealized losses on transferred securities | 2,765 | 2,870 | 8,161 | 8,448
Net unrealized gains (losses) arising during the period | 132,130 | (72,691) | 138,621 | (72,034)
Net realized losses reclassified into net income | 2,663 | 2,870 | 6,767 | 15,492
Other comprehensive income (loss) | 134,793 | (69,821) | 145,388 | (56,542)
Cash Flow Hedges |  |  |  |
Before-Tax |  |  |  |
Net unrealized gains (losses) arising during the period | 93,842 | (62,715) | (21,629) | (129,329)
Net realized losses reclassified into net income | 24,272 | 24,059 | 73,471 | 54,955
Net change | 118,114 | (38,656) | 51,842 | (74,374)
Tax Effect |  |  |  |
Net unrealized gains (losses) arising during the period | (27,737) | 18,368 | 6,394 | 37,861
Net realized losses reclassified into net income | (7,175) | (7,046) | (21,717) | (16,095)
Net change | (34,912) | 11,322 | (15,323) | 21,766
Net-of-Tax |  |  |  |
Net unrealized gains (losses) arising during the period | 66,105 | (44,347) | (15,235) | (91,468)
Net realized losses reclassified into net income | 17,097 | 17,013 | 51,754 | 38,860
Other comprehensive income (loss) | 83,202 | (27,334) | 36,519 | (52,608)
Foreign Currency Translation Adjustments |  |  |  |
Before-Tax |  |  |  |
Net unrealized gains (losses) arising during the period | (1,126) | 3,728 | 1,558 | 247
Net change | (1,126) | 3,728 | 1,558 | 247
Tax Effect |  |  |  |
Net unrealized gains (losses) arising during the period | 0 | (18) | (173) | (845)
Net change | 0 | (18) | (173) | (845)
Net-of-Tax |  |  |  |
Net unrealized gains (losses) arising during the period | (1,126) | 3,710 | 1,385 | (598)
Net realized losses reclassified into net income | 0 | 0 | 0 | 0
Other comprehensive income (loss) | $ (1,126) | $ 3,710 | $ 1,385 | $ (598)

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