Accumulated Other Comprehensive Income or Loss and Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Net income	$ 170,001	$ 164,198	$ 509,683	$ 499,146
Less: Preferred stock dividends	6,991	6,991	20,973	20,973
Net income applicable to common shares	$ 163,010	$ 157,207	$ 488,710	$ 478,173
Weighted average common shares outstanding (in shares)	64,888	61,213	62,743	61,119
Effect of dilutive potential common shares
Common stock equivalents (in shares)	1,053	964	934	888
Average common shares and dilutive common shares (in shares)	65,941	62,177	63,677	62,007
Net income per common share:
Basic (usd per share)	$ 2.51	$ 2.57	$ 7.79	$ 7.82
Diluted (usd per share)	$ 2.47	$ 2.53	$ 7.67	$ 7.71