Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Depreciation	$ 3,840	$ 3,688
Impairment loss on IPR&D	101,500
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Impairment loss on IPR&D	79,800
Construction in progress
Property, Plant and Equipment [Line Items]
Payroll	$ 600	$ 1,200