Debt - Schedule of Outstanding Debt (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Debt outstanding	$ 1,267.7	$ 1,316.8
Current portion of capital leases	(0.7)	(1.6)
Less unamortized debt issuance costs	(26.4)	(33.9)
Less hedge accounting fair value adjustment	(8.4)	0.0
Long-term debt and capital leases	1,232.2	1,281.3
Total outstanding debt issuance cost	28.6
Debt issuance cost revolving credit facility	2.2
Revolving credit facility
Debt Instrument [Line Items]
Debt outstanding	25.0	63.5
Term loan B
Debt Instrument [Line Items]
Debt outstanding	815.0	825.0
Senior Notes 9.50% due 2024
Debt Instrument [Line Items]
Debt outstanding	425.0	425.0
Capital leases
Debt Instrument [Line Items]
Debt outstanding	$ 2.7	$ 3.3

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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-Publisher FASB
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Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Debt Issuance Costs, Net and Debt Issuance Costs, Line of Credit Arrangements,Net

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