Parent Company Information - Schedule of Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income
Income tax benefit	$ 211,816	$ 166,899	$ 139,460
Net Income	568,851	473,840	390,606
Dividends on preferred stock	13,146	12,688	12,688
Net income available to common shareholders	555,705	461,152	377,918
Parent Company
Income
Dividends from subsidiary	420,000	150,000	186,000
Income from subsidiary	0	0	4,436
Net (losses) gains on equity securities	(1,136)	1,491	0
Other interest and income	82	20	21
Total Income	418,946	151,511	190,457
Total Expenses	48,104	28,537	23,484
Income before income tax and equity in undistributed earnings of subsidiary	370,842	122,974	166,973
Income tax benefit	(13,098)	(9,501)	(3,946)
Income before equity in undistributed earnings of subsidiary	383,940	132,475	170,919
Equity in undistributed earnings of subsidiary	184,911	341,365	219,687
Net Income	568,851	473,840	390,606
Dividends on preferred stock	13,146	12,688	12,688
Net income available to common shareholders	$ 555,705	$ 461,152	$ 377,918