Segment Information (Long-Lived Assets by Major Country) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 594.5	$ 665.7	$ 570.2
U.S.
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	135.3	149.4	92.2
Brazil
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	86.4	116.1	144.1
Poland
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	96.8	99.3	93.7
Mexico
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	55.2	67.8	66.2
All other
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 220.8	$ 233.1	$ 174.0