Other Comprehensive Income - Summary of the Tax Effects (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other comprehensive income (loss): Securities available-for-sale: Before Tax Amount
Change in unrealized gains (losses) during period	$ 1,717	$ (405)	$ 447	$ 4,116
Reclassification adjustment for gains included in net income	0	0	(1,243)	(128)
Total other comprehensive income (loss), before tax	1,717	(405)	(796)	3,988
Other comprehensive income (loss): Securities available-for-sale: Tax Effect
Change in unrealized gains (losses) during period	(601)	142	(156)	(1,441)
Reclassification adjustment for gains included in net income	0	0	435	45
Total other comprehensive income (loss)	(601)	142	279	(1,396)
Other comprehensive income (loss): Securities available-for-sale: Net of Tax Amount
Change in unrealized gains (losses) during period	1,116	(263)	291	2,675
Reclassification adjustment for gains included in net income	0	0	(808)	(83)
Total other comprehensive income (loss), net of tax	$ 1,116	$ (263)	$ (517)	$ 2,592