Other Comprehensive Income - Summary of the Tax Effects (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other comprehensive income (loss): Securities available-for-sale: Before Tax Amount
Change in unrealized gains (losses) during period	$ 2,060	$ (2,971)	$ 4,862	$ (1,270)
Reclassification adjustment for gains included in net income	(20)	(1,128)	(20)	(1,243)
Total other comprehensive income (loss), before tax	2,040	(4,099)	4,842	(2,513)
Other comprehensive income (loss): Securities available-for-sale: Tax Effect
Change in unrealized gains (losses) during period	(721)	1,040	(1,701)	445
Reclassification adjustment for gains included in net income	7	395	7	435
Total other comprehensive income (loss)	(714)	1,435	(1,694)	880
Other comprehensive income (loss): Securities available-for-sale: Net of Tax Amount
Change in unrealized gains (losses) during period	1,339	(1,931)	3,161	(825)
Reclassification adjustment for gains included in net income	(13)	(733)	(13)	(808)
Total other comprehensive income (loss), net of tax	$ 1,326	$ (2,664)	$ 3,148	$ (1,633)