CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Preferred Series A	Preferred Series B	Preferred Series C	Common Stock	Preferred Stock	Common Stock	Surplus	Retained Earnings	Retained Earnings Preferred Series A	Retained Earnings Preferred Series B	Retained Earnings Preferred Series C	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance at Dec. 31, 2023	$ 6,701,391					$ 209,691	$ 178,187	$ 4,989,989	$ 1,471,371				$ (146,456)	$ (1,391)
Beginning balance (in shares) at Dec. 31, 2023							507,710
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	96,280								96,280
Other comprehensive income (loss), net of tax	(10,392)												(10,392)
Cash dividends declared:
Cash dividends declared on preferred stock		$ (1,797)	$ (2,322)							$ (1,797)	$ (2,322)
Cash dividends declared on common stock	(56,794)								(56,794)
Effect of stock incentive plan, net (in shares)							1,183
Effect of stock incentive plan, net	773						$ 348	(966)						1,391
Ending balance at Mar. 31, 2024	6,727,139					209,691	$ 178,535	4,989,023	1,506,738				(156,848)	0
Ending balance (in shares) at Mar. 31, 2024							508,893
Beginning balance at Dec. 31, 2024	7,435,127					354,345	$ 195,998	5,442,070	1,598,048				(155,334)	0
Beginning balance (in shares) at Dec. 31, 2024							558,786
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	106,058								106,058
Other comprehensive income (loss), net of tax	27,082												27,082
Cash dividends declared:
Cash dividends declared on preferred stock		$ (1,797)	$ (2,065)	$ (3,094)						$ (1,797)	$ (2,065)	$ (3,094)
Cash dividends declared on common stock					$ (62,460)				(62,460)
Effect of stock incentive plan, net (in shares)							1,492
Effect of stock incentive plan, net	3,208						$ 522	2,686
Common stock repurchased (in shares)							(250)
Common stock repurchased	(2,162)													(2,162)
Ending balance at Mar. 31, 2025	$ 7,499,897					$ 354,345	$ 196,520	$ 5,444,756	$ 1,634,690				$ (128,252)	$ (2,162)
Ending balance (in shares) at Mar. 31, 2025							560,028