Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 107,618	$ 96,383
Less accumulated depreciation	(54,034)	(45,750)
Property and equipment, net	53,584	50,633
Depreciation	8,798	7,026
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,828	3,828
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	24,172	24,060
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	501	478
Revenue-generating assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	47,010	38,066
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,022	17,239
Office and computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	14,054	12,681
Motor vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 31	$ 31