CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 47,212	$ 41,855	$ 94,247	$ 93,308
Other comprehensive income/(loss):
Net unrealized gains/(losses) on available-for-sale securities	23,334	(30,179)	23,992	(116,446)
Net changes in held-to-maturity securities	(321)	865	(1,103)	842
Net unrealized gains/(losses) on cash flow hedges	9,279	16,884	(2,013)	48,088
Other comprehensive income/(loss) before tax	32,292	(12,430)	20,876	(67,516)
Income tax (expense)/benefit related to other comprehensive income/(loss)	(6,781)	2,611	(4,384)	14,179
Net comprehensive income/(loss)	25,511	(9,819)	16,492	(53,337)
Comprehensive income	$ 72,723	$ 32,036	$ 110,739	$ 39,971