Property and Equipment - Schedules of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 27,785
Right-of-use asset	$ 8,368
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization	40,687
Accumulated depreciation and amortization	7,925
Accumulated depreciation and amortization		(4,316)
Property, plant, and equipment and finance lease right-of-use asset, after accumulated depreciation and amortization	32,762
Property, plant and equipment, net	32,762	23,469
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	14,331	16,048
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,535	6,365
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,190	291
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,596	1,850
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,667	$ 3,231