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	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Before-Tax
Net change	$ 50,534	$ 206,712	$ (949,946)
Tax Effect
Net change	(15,198)	(61,679)	274,698
Net-of-Tax
Unrealized losses on debt securities transferred from AFS to HTM	0	0	(112,991)
Other comprehensive income (loss)	35,336	145,033	(675,248)
Debt Securities
Before-Tax
Net unrealized gains (losses) on AFS debt securities arising during the period	71,259	109,216	(721,100)
Unrealized losses on debt securities transferred from AFS to HTM	0	0	(160,416)
Net realized (gains) losses on AFS debt securities reclassified into net income	(2,069)	6,862	(1,306)
Amortization of unrealized losses on transferred securities	15,452	15,860	18,000
Net change	84,642	131,938	(864,822)
Tax Effect
Net unrealized gains (losses) on AFS debt securities arising during the period	(20,957)	(32,286)	213,221
Unrealized losses on debt securities transferred from AFS to HTM	0	0	47,425
Net realized (gains) losses on AFS debt securities reclassified into net income	612	(2,029)	386
Amortization of unrealized losses on transferred securities	(4,568)	(4,689)	(5,322)
Net change	(24,913)	(39,004)	255,710
Net-of-Tax
Net unrealized gains (losses) on AFS debt securities arising during the period	50,302	76,930	(507,879)
Unrealized losses on debt securities transferred from AFS to HTM	0	0	(112,991)
Net realized (gains) losses on AFS debt securities reclassified into net income	(1,457)	4,833	(920)
Amortization of unrealized losses on transferred securities	10,884	11,171	12,678
Net unrealized (losses) gains arising during the period	50,302	76,930	(620,870)
Net realized losses reclassified into net income	9,427	16,004	11,758
Other comprehensive income (loss)	59,729	92,934	(609,112)
Cash Flow Hedges
Before-Tax
Net unrealized (losses) gains arising during the period	(124,382)	(5,767)	(74,069)
Net realized losses reclassified into net income	91,083	79,843	4,004
Net change	(33,299)	74,076	(70,065)
Tax Effect
Net unrealized (losses) gains arising during the period	36,935	1,490	21,446
Net realized losses reclassified into net income	(27,047)	(23,411)	(1,169)
Net change	9,888	(21,921)	20,277
Net-of-Tax
Net unrealized (losses) gains arising during the period	(87,447)	(4,277)	(52,623)
Net realized losses reclassified into net income	64,036	56,432	2,835
Other comprehensive income (loss)	(23,411)	52,155	(49,788)
Foreign Currency Translation Adjustments
Before-Tax
Net unrealized (losses) gains arising during the period	(809)	698	(15,059)
Net change	(809)	698	(15,059)
Tax Effect
Net unrealized (losses) gains arising during the period	(173)	(754)	(1,289)
Net change	(173)	(754)	(1,289)
Net-of-Tax
Net unrealized (losses) gains arising during the period	(982)	(56)	(16,348)
Net realized losses reclassified into net income	0	0	0
Other comprehensive income (loss)	$ (982)	$ (56)	$ (16,348)