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	$ 119,504	$ 108,612
Other comprehensive income (loss) before income taxes:
Net change in unrealized loss on securities available for sale, cash flow hedges and equity method investment	109,512	(77,799)
Reclassification of net loss realized and included in earnings	9,415	13,577
Valuation adjustments to employee benefit plans		22,014
Amortization of unrealized net loss on securities transferred to held to maturity	405	428
Other comprehensive income (loss) before income taxes	119,332	(41,780)
Income tax expense (benefit)	28,212	(9,392)
Other comprehensive income (loss) net of income taxes	91,120	(32,388)
Comprehensive income	$ 210,624	$ 76,224