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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 132,578	$ 79,327	$ 71,695
Unrealized gains (losses) on available for sale debt securities:
Unrealized gains (losses) arising during the period	32,273	49,688	(46,069)
Income tax effect	(8,390)	(12,919)	11,978
Reclassification adjustments for (gains) losses included in net income	(20,078)	(1,001)	18,659
Income tax effect	5,220	260	(4,851)
Net unrealized gains (losses) on available for sale debt securities	9,025	36,028	(20,283)
Unrealized gains (losses) on cash flow hedges:
Unrealized gains (losses) arising during the period	(31,772)	(21,157)	1,995
Income tax effect	8,545	5,501	(518)
Reclassification adjustment for (gains) losses included in net income	13,092	1,407	(2,917)
Income tax effect	(3,404)	(366)	758
Net unrealized gains (losses) on cash flow hedges	(13,539)	(14,615)	(682)
Other comprehensive income (loss), net of income tax effect	(4,514)	$ 21,413	$ (20,965)
Comprehensive income (loss)	$ 128,064

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580

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