Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 41,346	$ 36,495	$ 93,325	$ 107,487
Other comprehensive income, net of tax:
Unrealized (loss) gain on securities available for sale	(624)	1,174	13,354	13,140
Reclassification adjustment for net gains included in net income	(86)	(110)	(1,231)	(1,190)
Total unrealized (loss) gain on investment securities	(710)	1,064	12,123	11,950
Unrealized gain (loss) on derivatives	24	11	(1,324)	(1,664)
Reclassification adjustment for amounts included in net income	289	(205)	513	(1,374)
Total unrealized gain (loss) on derivatives	313	(194)	(811)	(3,038)
Net other comprehensive income (loss) during period	(397)	870	11,312	8,912
Comprehensive Income	$ 40,949	$ 37,365	$ 104,637	$ 116,399