Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other comprehensive (loss) income, net of tax:
Net income	$ 644,283	$ 408,864	$ 220,621
Investment securities available-for-sale	(635,696)	(62,888)	50,173
Derivative instruments	(14,944)	(13,848)	29,102
Total defined benefit pension and postretirement benefit plans	(11,740)	11,900	(947)
Other comprehensive (loss) income, net of tax	(662,380)	(64,836)	78,328
Comprehensive income	$ (18,097)	$ 344,028	$ 298,949