Business Segment Information - Information by Geographical Area (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue and property, plant and equipment by geographical area
Total revenue	$ 2,417.9	$ 1,987.5	$ 2,072.6
Long-lived assets	466.0	463.0	371.7
United States
Revenue and property, plant and equipment by geographical area
Total revenue	601.0	455.9	529.8
Long-lived assets	51.3	61.3	53.2
Germany
Revenue and property, plant and equipment by geographical area
Total revenue	262.6	244.9	213.6
Long-lived assets	244.0	227.8	175.1
Rest of Europe
Revenue and property, plant and equipment by geographical area
Total revenue	658.1	519.8	505.2
Long-lived assets	141.5	144.7	118.3
Asia Pacific
Revenue and property, plant and equipment by geographical area
Total revenue	729.1	629.1	651.0
Long-lived assets	22.6	22.1	16.4
Other
Revenue and property, plant and equipment by geographical area
Total revenue	167.1	137.8	173.0
Long-lived assets	$ 6.6	$ 7.1	$ 8.7