CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 180,198	$ 127,391
Unrealized gains (losses) on available-for-sale securities
Before tax	47,040	(206,017)
Tax effect	(12,537)	54,903
Net of tax	34,503	(151,114)
Reclassification of net gains on available-for-sale securities included in net income
Before tax	560	250
Tax effect	(151)	(67)
Net of tax	409	183
Reclassification of amortization of unrealized gains on investment securities transferred to held-to-maturity from available-for-sale
Before tax	43	42
Tax effect	(11)	(11)
Net of tax	32	31
Net unrealized gains (losses) on available-for-sale securities	34,062	(151,328)
Unrealized gains on derivative instruments
Before tax	34,666	39,481
Tax effect	(9,238)	(10,532)
Net unrealized gains on derivative instruments	25,428	28,949
Foreign currency adjustment
Before tax	890	2,842
Tax effect	(180)	(554)
Net foreign currency adjustment	710	2,288
Total other comprehensive income (loss)	60,200	(120,091)
Comprehensive income	$ 240,398	$ 7,300