Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 9,255		$ 9,094
Accumulated depreciation - other	(5,343)		(4,836)
Net property and equipment	3,912		4,258
Depreciation	505	$ 542
Computer equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	2,328		2,270
Technical equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	2,960		2,427
Facilities
Property, Plant and Equipment [Line Items]
Total property and equipment	3,482		3,387
Capital projects in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 485		$ 1,010