Debt (Details) - USD ($)
$ in Millions |
Sep. 30, 2018 |
Dec. 31, 2017 |
| Debt Instrument [Line Items] |
|
|
| Short-term borrowings |
$ 23.6
|
$ 45.2
|
| Long-term Debt Types [Abstract] |
|
|
| Total long-term debt |
1,495.5
|
1,191.5
|
| Total Debt |
1,519.1
|
1,236.7
|
| Long-term Debt by Current and Noncurrent [Abstract] |
|
|
| Current liabilities |
77.8
|
97.1
|
| Noncurrent liabilities |
1,441.3
|
1,139.6
|
| Term Loan Facility | Senior Secured Credit Facility |
|
|
| Long-term Debt Types [Abstract] |
|
|
| Long-term Debt |
473.0
|
491.4
|
| Other Disclosures [Abstract] |
|
|
| Unamortized debt costs |
2.0
|
2.3
|
| Senior unsecured notes | Six hundred million senior unsecured notes |
|
|
| Long-term Debt Types [Abstract] |
|
|
| Long-term Debt |
591.8
|
591.2
|
| Other Disclosures [Abstract] |
|
|
| Unamortized debt costs |
8.2
|
8.8
|
| Revolving Credit Facility |
|
|
| Long-term Debt Types [Abstract] |
|
|
| Debt |
305.7
|
0.0
|
| Other Non-US Dollar-denominated Facilities |
|
|
| Long-term Debt Types [Abstract] |
|
|
| Debt |
8.1
|
12.0
|
| Capital leases |
|
|
| Long-term Debt Types [Abstract] |
|
|
| Capital Leases |
116.9
|
96.9
|
| Restricted Cash Borrowings |
|
|
| Debt Instrument [Line Items] |
|
|
| Short-term borrowings |
11.3
|
27.0
|
| Other |
|
|
| Debt Instrument [Line Items] |
|
|
| Short-term borrowings |
$ 12.3
|
$ 18.2
|