Other Comprehensive Income - Summary of the Tax Effects (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other comprehensive income (loss): Securities available-for-sale: Before Tax Amount
Change in unrealized (losses) gains during period	$ (645)	$ 1,717	$ 4,217	$ 447
Reclassification adjustment for gains included in net income	0	0	(20)	(1,243)
Other comprehensive income (loss): Securities available-for-sale: Tax Effect
Change in unrealized (losses) gains during period	225	(601)	(1,476)	(156)
Reclassification adjustment for gains included in net income	0	0	7	435
Other comprehensive income (loss): Securities available-for-sale: Net of Tax Amount
Change in unrealized (losses) gains during period	(420)	1,116	2,741	291
Reclassification adjustment for gains included in net income	0	0	(13)	(808)
Other Comprehensive Income (loss): Derivatives qualifying as hedges: Before Tax Amount
Change in fair value of derivative instruments designated as cash flow hedges	55	0	55	0
Other Comprehensive Income (loss): Derivatives qualifying as hedges: Tax Effect
Change in fair value of derivative instruments designated as cash flow hedges	(19)	0	(19)	0
Other Comprehensive Income (loss): Derivatives qualifying as hedges: Net of Tax Amount
Change in fair value of derivative instruments designated as cash flow hedges	36	0	36	0
Total other comprehensive (loss) income, before tax	(590)	1,717	4,252	(796)
Total other comprehensive (loss) income	206	(601)	(1,488)	279
Total other comprehensive (loss) income, net of tax	$ (384)	$ 1,116	$ 2,764	$ (517)