CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 45,896	$ 31,286	$ 93,733	$ 64,513
Other comprehensive (loss)/income:
Net unrealized (losses)/gains on available-for-sale securities	(30,179)	(37,389)	(116,446)	28,975
Net changes in held-to-maturity securities	865	(1,653)	842	(3,810)
Net unrealized gains/(losses) on cash flow hedges	16,884	(5,274)	48,088	13,641
Other comprehensive (loss)/income before tax	(12,430)	(44,316)	(67,516)	38,806
Income tax benefit/(expense) related to other comprehensive (loss)/income	2,611	9,305	14,179	(8,150)
Other comprehensive (loss)/income net of tax	(9,819)	(35,011)	(53,337)	30,656
Comprehensive income/(loss)	$ 36,077	$ (3,725)	$ 40,396	$ 95,169