CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income:	$ 562,152	$ 560,742	$ 527,323
Other comprehensive income (loss), net of tax:
Changes in fair value on available-for-sale securities, net of tax	48,038	(283,382)	(32,509)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	(7,414)	1,002	(18,373)
Accretion of net unrealized gains on securities transferred from available-for-sale to held-to-maturity, net of tax	(7,454)	(5,477)	(7,575)
Net gain on cash flow hedges reclassified from other comprehensive income into net income, net of tax	(9,689)	(9,975)	(9,645)
Net loss (gain) on sale of investment securities reclassified from other comprehensive income into net income, net of tax	14,755	(115)	(561)
Total other comprehensive income (loss), net of tax	38,236	(297,947)	(68,663)
Total comprehensive income	$ 600,388	$ 262,795	$ 458,660