CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 1,128,083	$ 872,981	$ 567,797
Other comprehensive (loss) income, net of tax:
Net changes in unrealized (losses) gains on AFS debt securities	(508,799)	(137,950)	54,666
Net changes in unrealized losses on securities transferred from AFS to HTM	(100,313)	0	0
Net changes in unrealized (losses) gains on cash flow hedges	(49,788)	1,487	(1,230)
Foreign currency translation adjustments	(16,348)	1,757	9,297
Other comprehensive (loss) income	(675,248)	(134,706)	62,733
COMPREHENSIVE INCOME	$ 452,835	$ 738,275	$ 630,530