Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME		$ 9,154	$ 8,084	$ 26,085	$ 23,883
Other comprehensive income:
Net unrealized holding gains (losses) on available for sale securities		3,960	(4,929)	18,984	(14,057)
Reclassification adjustment for (gains) losses realized in income	[1]	(15)	27	18	24
Net unrealized holding gains (losses)		3,945	(4,902)	19,002	(14,033)
Income tax effect		(828)	1,030	(3,978)	2,935
Other comprehensive income (loss), net of tax		3,117	(3,872)	15,024	(11,098)
TOTAL COMPREHENSIVE INCOME		$ 12,271	$ 4,212	$ 41,109	$ 12,785

[1] Pre-tax reclassification adjustments relating to available-for-sale securities are reported in security gains and the tax impact is included in income tax expense on the consolidated statements of income.