Segment Results (Reconciliation of Total Segment Assets to Total Consolidated Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total consolidated assets	$ 1,757.8	$ 1,758.0
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Total consolidated assets	91.3	150.8
Americas [Member]
Segment Reporting Information [Line Items]
Total consolidated assets	1,232.1	1,186.7
EMEA [Member]
Segment Reporting Information [Line Items]
Total consolidated assets	289.1	275.5
Pacific Rim [Member]
Segment Reporting Information [Line Items]
Total consolidated assets	$ 145.3	$ 145.0