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, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains (losses) on investment securities, net	$ 3,189	$ (2,357)	$ 233	$ (959)
Income before taxes	232,709	224,858	694,008	679,838
Income tax expense	(62,708)	(60,660)	(184,325)	(180,692)
Interest on Loans	794,163	666,260	2,254,316	1,846,009
Interest on deposits	362,019	262,783	997,254	621,080
Interest on other borrowings	9,013	9,384	26,961	25,723
Net income	170,001	164,198	509,683	499,146
Reclassification Out of Accumulated Other Comprehensive Income | Accumulated unrealized gains on securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gains (losses) on investment securities, net	45	158	1,223	720
Income before taxes	45	158	1,223	720
Income tax expense	(6)	(40)	(318)	(192)
Net income	39	118	905	528
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]
Income before taxes	(20,379)	(18,374)	(60,720)	(36,388)
Income tax expense	5,299	4,896	15,970	9,697
Interest on Loans	23,704	22,768	72,027	50,501
Interest on deposits	(3,325)	(4,657)	(11,307)	(14,902)
Interest on other borrowings	0	263	0	789
Net income	$ (15,080)	$ (13,478)	$ (44,750)	$ (26,691)