Unaudited Condensed Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 61,211	$ 67,795
Available-For-Sale and Transferred Securities:
Unrealized gain (losses) on available-for-sale securities	77,466	(369,724)
Reclassification adjustment for losses (gains) included in net income	31	(678)
Reclassification adjustment for securities transferred from available-for-sale to held-to-maturity	1,881	(782)
Tax effect	(20,059)	93,798
Net of tax amount	59,319	(277,386)
Cash Flow Hedge:
Unrealized (losses) gains on derivatives used for cash flow hedges	(36)	2,967
Reclassification adjustment for gains included in net income	(974)	0
Tax effect	255	(749)
Net of tax amount	(755)	2,218
Total other comprehensive income (loss), net of tax	58,564	(275,168)
Total Comprehensive (Loss) Income	$ 119,775	$ (207,373)