Consolidated Statements of Comprehensive Income (Loss) - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 63,912	$ 116,042	$ 199,323	$ 213,978
Unrealized gains (losses) on available for sale debt securities:
Unrealized gains (losses) arising during the period	(46,450)	958	(213,532)	1,950
Income tax effect	12,077	(249)	55,518	(507)
Reclassification adjustments for (gains) losses included in net income	4,227	(6,063)	9,281	(31,441)
Income tax effect	(1,099)	1,576	(2,413)	8,174
Net unrealized gains (losses) on available for sale debt securities	(31,245)	(3,778)	(151,146)	(21,824)
Unrealized gains (losses) on cash flow hedges:
Unrealized gains (losses) arising during the period	0	0	0	12,321
Income tax effect	0	0	0	(3,204)
Reclassification adjustment for (gains) losses included in net income	0	0	0	26,972
Income tax effect	0	0	0	(7,013)
Net unrealized gains (losses) on cash flow hedges	0	0	0	29,076
Other comprehensive income (loss), net of income tax effect	(31,245)	(3,778)	(151,146)	7,252
Comprehensive income (loss)	$ 32,667	$ 112,264	$ 48,177	$ 221,230