Overview, Basis of Presentation and Significant Accounting Policies - Components of Company's Property, Plant and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 90.3	$ 89.6
Less: Accumulated depreciation	(71.9)	(70.9)
Total	18.4	18.7
Land
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	0.3	0.3
Buildings
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	20.6	20.8
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 69.4	$ 68.5