Property, Plant, and Equipment - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 0.6	$ 0.6	$ 1.2	$ 1.2
Depreciation allocated to cost of revenue	0.5	0.5	1.0	1.0
Depreciation included in depreciation and amortization	$ 0.1	$ 0.1	$ 0.2	$ 0.2