Business Segments (Details4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-Lived Assets [Line Items]
Sales	$ 2,799.8	$ 2,982.1	$ 4,122.5
Total assets	$ 4,285.2	$ 4,034.9	$ 5,634.6
Percent of total	100.00%	100.00%	100.00%
United States
Long-Lived Assets [Line Items]
Sales	$ 1,534.9	$ 1,809.1	$ 2,454.6
Total assets	$ 3,587.0	$ 3,356.8	$ 4,956.4
Percent of total	84.00%	83.00%	88.00%
China
Long-Lived Assets [Line Items]
Sales	$ 370.4	$ 315.5	$ 355.6
Total assets	$ 406.4	$ 325.5	$ 288.1
Percent of total	9.00%	8.00%	5.00%
UNITED KINGDOM
Long-Lived Assets [Line Items]
Sales	$ 153.9	$ 126.5	$ 173.8
Total assets	$ 153.9	$ 122.4	$ 141.3
Percent of total	4.00%	3.00%	3.00%
Germany
Long-Lived Assets [Line Items]
Sales	$ 121.3	$ 125.4	$ 219.3
Other [Member]
Long-Lived Assets [Line Items]
Total assets	$ 137.9	$ 230.2	$ 248.8
Percent of total	3.00%	6.00%	4.00%