Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net Income	$ 7,172	$ 6,403
Other Comprehensive Income
Increase in Net Unrealized Gain on Available-for-Sale Securities	4,195	1,627
Deferred Tax Expense Related to Unrealized Gains	(1,764)	(684)
Reclassification Adjustment for Realized Gains on Available-for-Sale Securities Included in Net Income	289	(1)
Deferred Tax Benefit Related to Reclassification Adjustment	(121)	0
Change in Net Unrealized Gain on Available-for-Sale Securities, Net of Tax	2,599	942
Total Other Comprehensive Income	2,599	942
Comprehensive Income	$ 9,771	$ 7,345