Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 89,217	$ 48,190	$ 48,837
Other comprehensive loss, net of tax:
Unrealized losses on investment securities arising during the period, net of income tax benefit of $1,517, $1,265, and $1,168, respectively	(4,623)	(2,064)	(1,906)
Less: Reclassification adjustment for realized gains on sale of securities available for sale included in net income, net of income tax expense of $2, $9, and $33, respectively	(7)	(13)	(53)
Total other comprehensive loss	(4,630)	(2,077)	(1,959)
Total comprehensive income	$ 84,587	$ 46,113	$ 46,878