Earnings Per Common Share - Computations of Basic Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income available to common shareholders:
Net income	$ 1,991,663	$ 1,858,746	$ 1,353,152
Less: Preferred stock dividends	(96,587)	(72,915)	(68,228)
Net income available to common equity	1,895,076	1,785,831	1,284,924
Less: Income attributable to unvested stock-based compensation awards	(3,607)	(8,854)	(5,858)
Net income available to common shareholders	$ 1,891,469	$ 1,776,977	$ 1,279,066
Weighted-average shares outstanding:
Common shares outstanding (including common stock issuable) and unvested stock-based compensation awards	163,489	129,539	129,404
Less: Unvested stock-based compensation awards	(315)	(890)	(766)
Weighted-average shares outstanding	163,174	128,649	128,638
Basic earnings per common share	$ 11.59	$ 13.81	$ 9.94