Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Consolidated Statements Of Comprehensive Income
Net Income	$ 7,614	$ 7,799	$ 22,010	$ 22,875
Other Comprehensive loss: Unrealized income (loss) on investments, net of tax (benefit) expense of ($273), $59, ($445) and $238	(506)	109	(827)	442
Comprehensive Income	$ 7,108	$ 7,908	$ 21,183	$ 23,317