Property and Equipment - Components of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Components of Property, Plant and Equipment
Property and equipment	$ 20,314	$ 77,334
Less accumulated depreciation	(11,620)	(37,505)
Property and equipment, net	8,694	39,829
Land
Components of Property, Plant and Equipment
Property and equipment	3,282	4,440
Buildings and leasehold improvements
Components of Property, Plant and Equipment
Property and equipment	6,067	38,741
Machinery and equipment
Components of Property, Plant and Equipment
Property and equipment	6,928	27,694
Fixed assets in progress
Components of Property, Plant and Equipment
Property and equipment	906	0
Furniture and fixtures
Components of Property, Plant and Equipment
Property and equipment	645	1,671
Transportation equipment
Components of Property, Plant and Equipment
Property and equipment	1,190	1,440
Computer equipment and software
Components of Property, Plant and Equipment
Property and equipment	$ 1,296	$ 3,348