Accumulated Other Comprehensive Income (Loss) - Schedule of Components of Other Comprehensive Income (Loss), Reclassifications to Net Income and the Related Tax Effects (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Before-Tax
Net change	$ (62,194)	$ 128,735
Tax Effect
Net change	19,584	(38,490)
Net-of-Tax
Amortization of unrealized losses on transferred securities	2,521	2,692
Net unrealized (losses) gains arising during the period	(44,151)	82,690
Net realized (gains) losses reclassified into net income	1,541	7,555
Other comprehensive (loss) income	(42,610)	90,245
Debt Securities
Before-Tax
Net unrealized (losses) gains arising during the period	(46,086)	81,538
Net realized gains on AFS debt securities reclassified into net income	(808)	(131)
Amortization of unrealized losses on transferred securities	3,579	3,822
Net change	(43,315)	85,229
Tax Effect
Net unrealized (losses) gains arising during the period	13,614	(24,161)
Net realized gains on AFS debt securities reclassified into net income	239	39
Amortization of unrealized losses on transferred securities	(1,058)	(1,130)
Net change	12,795	(25,252)
Net-of-Tax
Net unrealized (losses) gains arising during the period	(32,472)	57,377
Net realized gains on AFS debt securities reclassified into net income	(569)	(92)
Amortization of unrealized losses on transferred securities	2,521	2,692
Net unrealized (losses) gains arising during the period	(32,472)	57,377
Net realized (gains) losses reclassified into net income	1,952	2,600
Other comprehensive (loss) income	(30,520)	59,977
Cash Flow Hedges
Before-Tax
Net unrealized (losses) gains arising during the period	(22,382)	37,466
Net realized (gains) losses reclassified into net income	(583)	7,052
Net change	(22,965)	44,518
Tax Effect
Net unrealized (losses) gains arising during the period	6,617	(11,141)
Net realized (gains) losses reclassified into net income	172	(2,097)
Net change	6,789	(13,238)
Net-of-Tax
Net unrealized (losses) gains arising during the period	(15,765)	26,325
Net realized (gains) losses reclassified into net income	(411)	4,955
Other comprehensive (loss) income	(16,176)	31,280
Foreign Currency Translation Adjustments
Before-Tax
Net unrealized (losses) gains arising during the period	4,086	(1,012)
Net change	4,086	(1,012)
Tax Effect
Net unrealized (losses) gains arising during the period	0	0
Net change	0	0
Net-of-Tax
Net unrealized (losses) gains arising during the period	4,086	(1,012)
Net realized (gains) losses reclassified into net income	0	0
Other comprehensive (loss) income	$ 4,086	$ (1,012)