Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 509,682	$ 466,151	$ 292,990
Less: Preferred stock dividends	27,964	27,964	21,377
Net income applicable to common shares	$ 481,718	$ 438,187	$ 271,613
Weighted average common shares outstanding (in shares)	59,205	56,994	57,523
Effect of dilutive potential common shares:
Common stock equivalents (in shares)	886	792	496
Weighted average common shares and effect of dilutive potential common shares (in shares)	60,091	57,786	58,019
Net income per common share:
Basic (usd per share)	$ 8.14	$ 7.69	$ 4.72
Diluted (usd per share)	$ 8.02	$ 7.58	$ 4.68