Overview, Basis of Presentation and Significant Accounting Policies - Components of Company's Property, Plant and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 89.0	$ 87.3
Less: Accumulated depreciation	(70.8)	(69.7)
Total	18.2	17.6
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	20.2	20.2
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 68.5	$ 66.8