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Debt, Interest Income, Expense and Other Finance Costs - Schedule of Debt (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Debt Instrument [Line Items] |  |
Total debt | $ 765.3 | $ 910.2
Current maturities of long-term debt and capital leases | 33.7 | 25.6
Long-term debt | 731.6 | 884.6
Credit Facility |  |
Debt Instrument [Line Items] |  |
Total debt | 225.0 | 60.0
Term Loans |  |
Debt Instrument [Line Items] |  |
Total debt | 527.4 | 835.8
Capital leases |  |
Debt Instrument [Line Items] |  |
Total debt | 8.8 | 10.4
Other |  |
Debt Instrument [Line Items] |  |
Total debt | $ 4.1 | $ 4.0

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