Schedule of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Finance lease obligations	$ 15.2	$ 40.0
Less: Debt issuance costs	(55.5)	(68.9)
Long-term Debt and Lease Obligation, Including Current Maturities	1,310.8	1,367.0
Less: Current portion of long-term debt	18.3	36.5
Long-term debt	1,292.5	1,330.5
Senior Notes \| 6.000% Senior Secured Notes due March 2022
Debt Instrument [Line Items]
Long-term debt	459.0	500.0
Senior Notes \| 6.375% Senior Secured Notes due March 2025
Debt Instrument [Line Items]
Long-term debt	500.0	500.0
Senior Secured Term Loan due 2025, net of original issue discount \| Senior Secured Term Loan due 2025, net of original issue discount
Debt Instrument [Line Items]
Long-term debt	$ 392.1	$ 395.9

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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