UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 52,445	$ 79,338	$ 168,611	$ 223,525
Available-For-Sale and Transferred Securities:
Unrealized losses on available-for-sale securities	(93,822)	(228,991)	(45,984)	(706,968)
Reclassification adjustment for (gains) losses included in net income	0	(15)	31	(780)
Reclassification adjustment for securities transferred from available-for-sale to held-to-maturity	1,304	1,347	4,492	1,751
Tax effect	23,380	57,506	10,478	178,382
Net of tax amount	(69,138)	(170,153)	(30,983)	(527,615)
Cash Flow Hedge:
Unrealized gains on derivatives used for cash flow hedges	654	3,132	2,540	7,002
Reclassification adjustment for gains included in net income	(1,244)	(165)	(3,331)	(167)
Tax effect	148	(750)	199	(1,727)
Net of tax amount	(442)	2,217	(592)	5,108
Total other comprehensive loss, net of tax	(69,580)	(167,936)	(31,575)	(522,507)
Total Comprehensive Income (Loss)	$ (17,135)	$ (88,598)	$ 137,036	$ (298,982)