Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements Of Comprehensive Income
Net Income	$ 8,797	$ 10,026	$ 17,285	$ 19,976
Other Comprehensive Income: Unrealized income on investments, net of tax expense of $204 and $36 in 2017	0	379	0	66
Comprehensive Income	$ 8,797	$ 10,405	$ 17,285	$ 20,042