Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 216,323	$ 221,004
Other comprehensive (loss) income, net of tax:
Investment securities available-for-sale	(36,271)	71,618
Derivative instruments	(29,989)	21,374
Defined benefit pension and other postretirement benefit plans	730	3,948
Other comprehensive (loss) income, net of tax	(65,530)	96,940
Comprehensive income	$ 150,793	$ 317,944