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 discount.

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

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Long-Term Debt - Summary of Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2020	Jul. 30, 2020	Dec. 31, 2019	Apr. 11, 2019	Jun. 30, 2017
Debt Instrument [Line Items]
Finance lease obligations	$ 281.2		$ 253.4
Less: unamortized debt issuance costs	(16.3)		(10.8)
Total debt	2,856.8		2,580.7
Less: Current maturities	64.4		56.0
Total long-term debt	2,792.4		2,524.7
Notes payable and other secured loans
Debt Instrument [Line Items]
Long-term debt	137.5		104.0
Senior secured term loan \| Secured Debt
Debt Instrument [Line Items]
Long-term debt	1,539.4		1,434.1
Unamortized fair value discount	3.7		4.6
Senior secured revolving credit facility \| Secured Debt
Debt Instrument [Line Items]
Long-term debt	0.0		0.0
6.750% senior unsecured notes due 2025 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 370.0		370.0
Debt instrument, stated rate	6.75%				6.75%
10.000% senior unsecured notes due 2027 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 545.0		$ 430.0
Less: unamortized debt issuance costs		$ (1.0)
Debt instrument, stated rate	10.00%			10.00%