CONSOLIDATED STATEMENTS 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	$ 212,180	$ 219,923	$ 137,938
Change in available for sale securities:
Net change in unrealized gain (loss) on securities	(637,513)	(103,807)	109,972
Reclassification adjustment for net (gains) losses realized in net income	1,892	(5,910)	(7,592)
Income taxes	158,049	28,573	(26,578)
Other comprehensive income (loss) on available for sale securities	(477,572)	(81,144)	75,802
Change in securities held to maturity
Adjustment for securities transferred from available for sale	(186,286)	0	0
Net amortization of unrealized losses on securities transferred from available for sale	3,842	0	0
Income taxes	45,174	0	0
Other comprehensive loss on held to maturity securities	(137,270)	0	0
Change in cash flow hedges
Net change in unrealized gain (loss) on derivatives	500	5,037	(904)
Reclassification adjustment for net (gains) losses on derivatives realized in net income	246	(1,601)	(1,820)
Income taxes	(158)	(763)	567
Other comprehensive income (loss) on cash flow hedges	588	2,673	(2,157)
Other comprehensive income (loss)	(614,254)	(78,471)	73,645
TOTAL COMPREHENSIVE INCOME (LOSS)	$ (402,074)	$ 141,452	$ 211,583