Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 123,478	$ 107,172
Other comprehensive income (loss) before income taxes:
Net change in unrealized gain or loss on securities available for sale and cash flow hedges	(390,904)	(145,490)
Reclassification of net (income) loss realized and included in earnings	(3,838)	286
Amortization of unrealized net gain (loss) on securities transferred to held to maturity	261	(56)
Other comprehensive loss before income taxes	(394,481)	(145,260)
Income tax benefit	(89,140)	(33,748)
Other comprehensive loss net of income taxes	(305,341)	(111,512)
Comprehensive loss	$ (181,863)	$ (4,340)