Parent Company Information - Schedule of Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income
Income tax benefit	$ 179,821	$ 211,816	$ 166,899
Net Income	498,511	568,851	473,840
Dividends on preferred stock	16,135	13,146	12,688
Net income available to common shareholders	482,376	555,705	461,152
Parent Company
Income
Dividends from subsidiary	425,000	420,000	150,000
Net gains (losses) on equity securities	1,036	(1,136)	1,491
Other interest and income	5,730	82	20
Total Income	431,766	418,946	151,511
Total Expenses	56,072	48,104	28,537
Income before income tax and equity in undistributed earnings of subsidiary	375,694	370,842	122,974
Income tax benefit	(10,961)	(13,098)	(9,501)
Income before equity in undistributed earnings of subsidiary	386,655	383,940	132,475
Equity in undistributed earnings of subsidiary	111,856	184,911	341,365
Net Income	498,511	568,851	473,840
Dividends on preferred stock	16,135	13,146	12,688
Net income available to common shareholders	$ 482,376	$ 555,705	$ 461,152