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		$ 35,961	$ 29,677	$ 19,539
Unrealized gain (loss) on securities:
Unrealized holding gain (loss) arising during period		17,686	(6,154)	231
Reclassification adjustment for losses (gains) included in net income	[1]	198	(2)	(500)
Other comprehensive gain (loss), before tax		17,884	(6,156)	(269)
Income tax (expense) benefit related to items of other comprehensive income		(5,286)	1,820	112
Total other comprehensive gain (loss), net of tax		12,598	(4,336)	(157)
Comprehensive income		$ 48,559	$ 25,341	$ 19,382

[1] Amounts are included in net losses (gains) on securities available-for-sale on the Consolidated Statements of Income in non-interest income. Income tax expense (benefit) associated with the reclassification adjustment for the years ended 2019, 2018 and 2017 was $(59,000), $1,000 and $210,000 respectively.