Restructuring and Other Charges (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) site	Jun. 30, 2019 USD ($)
Restructuring charges
Severance-related and exit costs			$ 1.8	$ 2.2
Other charges
Corporate severance-related costs	$ 0.0	$ 3.5	0.0	3.5
Environmental remediation	0.2	0.1	0.3	0.2
Other	0.2	0.2	0.5	0.2
Total Restructuring and other charges	0.9	3.8	5.7	3.9
Exit costs			$ 1.0
Number of environmental remediation sites | site			1
Facility Closing
Restructuring charges
Severance-related and exit costs	$ 0.5	$ 0.0	$ 4.9	$ 0.0