Long-Term Debt, Capital Lease Obligations and Lease Financing Arrangements - Long-Term Debt and Capital Lease Obligations (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Nov. 20, 2012
Debt Instrument [Line Items]
Long-term debt, net	$ 1,065.7	$ 996.5
Deferred financing costs	(16.7)	(17.6)
Capital lease obligations	11.9	12.2
Lease financing arrangements	141.9	150.0
Total	$ 1,219.5	$ 1,158.7
6.375% senior notes due 2022, including bond premium
Debt Instrument [Line Items]
Stated interest rate	6.375%	6.375%	6.375%
Senior Notes \| 6.375% senior notes due 2022, including bond premium
Debt Instrument [Line Items]
Long-term debt, net	$ 477.4	$ 477.6
Stated interest rate	6.375%	6.375%
Notes payable
Debt Instrument [Line Items]
Long-term debt, net	$ 0.0	$ 1.5
Revolving credit facility
Debt Instrument [Line Items]
Revolving credit facility	55.0	235.0
Revolving credit facility \| Term Loan
Debt Instrument [Line Items]
Revolving credit facility	550.0	$ 300.0
Deferred financing costs	$ (2.1)

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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