Condensed 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		$ 10,110	$ 182,060	$ 23,776	$ 222,896
Other comprehensive loss:
Net unrealized loss on securities available for sale		(7,758)	(19,830)	(2,159)	(39,817)
Other comprehensive loss, before tax		(7,758)	(19,830)	(2,159)	(39,817)
Income tax effect	[1]	2,107	11,128	587	10,928
Other comprehensive loss, net of tax		(5,651)	(8,702)	(1,572)	(28,889)
Total comprehensive income		$ 4,459	$ 173,358	$ 22,204	$ 194,007

[1] Income tax effect for the second quarter and first half of 2022 reflects the release of the deferred tax asset valuation allowance on the securities available for sale portfolio.