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Debt - Summary and Maturities (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015 | [1]
Debt and Capital Lease Obligations [Abstract] |  |  |  |  |  |  |  |
Total debt |  | $ 1,138.9 |  | $ 772.2 | $ 1,138.9 |  | $ 772.2 |
Short-term debt |  | 28.8 | [1] | 25.5 | 28.8 | [1] | 25.5 | $ 25.5
Long-term debt |  | 1,110.1 | [1] | 746.7 | 1,110.1 | [1] | 746.7 | $ 746.7
Interest Income, Expense and Other Financing Costs |  |  |  |  |  |  |  |
Interest income |  | 0.8 |  | 1.3 | 3.6 |  | 4.0 |
Interest expense and other financing costs |  | (11.0) |  | (9.2) | (29.5) |  | (25.5) |
Interest expense and other financing costs, net | [1] | (10.3) |  | (7.9) | (26.0) |  | (21.5) |
Credit Facility |  |  |  |  |  |  |  |
Debt and Capital Lease Obligations [Abstract] |  |  |  |  |  |  |  |
Total debt |  | 796.0 |  | 416.0 | 796.0 |  | 416.0 |
Term Loans |  |  |  |  |  |  |  |
Debt and Capital Lease Obligations [Abstract] |  |  |  |  |  |  |  |
Total debt |  | 323.0 |  | 333.2 | 323.0 |  | 333.2 |
Capital leases |  |  |  |  |  |  |  |
Debt and Capital Lease Obligations [Abstract] |  |  |  |  |  |  |  |
Total debt |  | 14.3 |  | 12.0 | 14.3 |  | 12.0 |
Other |  |  |  |  |  |  |  |
Debt and Capital Lease Obligations [Abstract] |  |  |  |  |  |  |  |
Total debt |  | $ 5.6 |  | $ 11.0 | $ 5.6 |  | $ 11.0 |
[1] | Amounts may not add due to rounding

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