Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Schedule of Other Comprehensive Income Reclassified from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains on investment securities, net	$ 2,972	$ 3,189	$ 6,818	$ 233
Interest on Loans	832,140	794,163	2,398,499	2,254,316
Interest on deposits	355,846	362,019	1,009,549	997,254
Income before taxes	296,041	232,709	816,184	694,008
Income tax expense	(79,787)	(62,708)	(215,364)	(184,325)
Net income	216,254	170,001	600,820	509,683
Reclassification Out of Accumulated Other Comprehensive Income | Accumulated unrealized (losses) gains on securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains on investment securities, net	269	45	(119)	1,223
Income before taxes	269	45	(119)	1,223
Income tax expense	(70)	(6)	31	(318)
Net income	199	39	(88)	905
Reclassification Out of Accumulated Other Comprehensive Income | Accumulated unrealized gains on derivative instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest on Loans	8,625	23,704	25,911	72,027
Interest on deposits	(3,325)	(3,325)	(9,975)	(11,307)
Income before taxes	(5,300)	(20,379)	(15,936)	(60,720)
Income tax expense	1,378	5,299	4,144	15,970
Net income	$ (3,922)	$ (15,080)	$ (11,792)	$ (44,750)