Summary of Significant Accounting Policies - Inventories (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Reduction of gross inventory levels	$ 2.4	$ (1.2)
Increase (decrease) of excess inventory reserves	$ 0.2	$ 0.6