Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 108,111		$ 108,111		$ 94,620
Property, Plant and Equipment, Net	52,375		52,375		43,521
Depreciation	2,235	$ 1,649	6,380	$ 4,956
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(55,736)		(55,736)		(51,099)
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	3,828		3,828		3,828
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	24,087		24,087		24,038
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	480		480		429
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	25,208		25,208		24,764
Hardware Revenue Generating Asset [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net	40,543		40,543		28,453
Office And Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	13,914		13,914		13,057
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 51		$ 51		$ 51