Long-term Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Finance lease obligations	$ 8.0	$ 15.2
Less: Debt issuance costs	(46.1)	(55.5)
Total debt	1,600.1	1,310.8
Less: Current portion of long-term debt	1,600.1	18.3
Long-term debt	0.0	1,292.5
Senior Notes \| 6.000% Senior Secured Notes due March 2022
Debt Instrument [Line Items]
Long-term debt	$ 459.0	459.0
Stated interest rate	6.00%
Senior Notes \| 6.375% Senior Secured Notes due March 2025
Debt Instrument [Line Items]
Long-term debt	$ 500.0	500.0
Stated interest rate	6.375%
Term Loan \| Senior Secured Term Loan due 2025, net of original issue discount
Debt Instrument [Line Items]
Long-term debt	$ 389.2	392.1
Line of credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	230.0	0.0
Secured debt \| Accounts Receivable Securitization Program, April 1, 2022
Debt Instrument [Line Items]
Long-term debt	$ 60.0	$ 0.0

Amount of short-term and long-term debt and lease obligation.

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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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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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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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