Capital Lease Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Capital Lease Obligations.
Capital Lease Obligations Incurred	$ 2,000	$ 0	$ 200
Leases in property and equipment
Furniture and equipment	5,741	3,734
Accumulated depreciation	(3,449)	(2,301)
Total	$ 2,292	$ 1,433