Debt And Financing - Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
2018	$ 30.6
2019	25.3
2020	23.2
2021	22.7
2022	596.4
Thereafter	227.9
Total	926.1	$ 1,010.3
Term Loan
Debt Instrument [Line Items]
2018	18.0
2019	18.0
2020	18.0
2021	18.0
2022	523.5
Thereafter	0.0
Total	595.5
ABL Facility
Debt Instrument [Line Items]
2018	0.0
2019	0.0
2020	0.0
2021	0.0
2022	0.0
Thereafter	0.0
Total	0.0
Second A&R CDA (b)
Debt Instrument [Line Items]
2018	1.5
2019	1.5
2020	1.4
2021	1.4
2022	69.3
Thereafter	0.0
Total	75.1
Lease Financing Obligation
Debt Instrument [Line Items]
2018	11.1
2019	5.8
2020	3.8
2021	3.3
2022	3.6
Thereafter	227.9
Total	255.5
Principal cash obligations	7.6
Net book value of assets	$ 220.3

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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-Name Accounting Standards Codification
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