Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 226,917	$ 216,323
Other comprehensive income (loss), net of tax:
Investment securities available-for-sale	96,581	(36,271)
Derivative financial instruments	10,124	(29,989)
Defined benefit pension and other postretirement benefit plans	277	730
Other comprehensive income (loss), net of tax	106,982	(65,530)
Comprehensive income	$ 333,899	$ 150,793