CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 146,278	$ 136,515	$ 60,776
Unrealized holding gain (loss) on securities—available-for-sale arising during the period	33,843	(6,547)	(3,318)
Reclassification for net (gain) loss on securities—available-for-sale realized in earnings	(34)	839	2,109
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, before Tax, after Reclassification Adjustment	601	(15,384)	0
Other Comprehensive Income (Loss), Tax	(8,258)	5,028	423
OTHER COMPREHENSIVE LOSS, NET OF INCOME TAXES:
Other comprehensive income (loss)	26,152	(16,064)	(786)
COMPREHENSIVE INCOME	$ 172,430	$ 120,451	$ 59,990