Consolidated Statements of Comprehensive Income (Loss) - Unaudited - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 61,341	$ 22,718	$ 97,936	$ 25,817
Unrealized gains (losses) on available for sale debt securities:
Unrealized gains (losses) arising during the period	592	35,315	992	26,217
Income tax effect	(154)	(9,182)	(258)	(6,816)
Reclassification adjustments for (gains) losses included in net income	(1,812)	(4,353)	(25,378)	(8,328)
Income tax effect	471	1,131	6,598	2,165
Net unrealized gains (losses) on available for sale debt securities	(903)	22,911	(18,046)	13,238
Unrealized gains (losses) on cash flow hedges:
Unrealized gains (losses) arising during the period	6	(6,369)	12,321	(34,066)
Income tax effect	(2)	1,684	(3,204)	9,035
Reclassification adjustment for (gains) losses included in net income	1,046	2,718	26,972	4,196
Income tax effect	(272)	(734)	(7,013)	(1,118)
Net unrealized gains (losses) on cash flow hedges	778	(2,701)	29,076	(21,953)
Other comprehensive income (loss), net of income tax effect	(125)	20,210	11,030	(8,715)
Comprehensive income (loss)	$ 61,216	$ 42,928	$ 108,966	$ 17,102