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Long-Term Debt - Summary of Long-term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Finance lease obligations	$ 553.5	$ 585.7
Less: unamortized debt issuance costs and discounts	(9.7)	(10.2)
Total debt	2,593.8	2,621.8
Less: Current maturities	62.9	62.8
Total long-term debt	2,530.9	2,559.0
Secured Debt | Senior secure term loan
Debt Instrument [Line Items]
Long-term debt	1,370.1	1,370.0
Unamortized fair value discount	2.0	2.1
Senior Notes | 6.750% senior unsecured notes due 2025
Debt Instrument [Line Items]
Long-term debt	$ 185.0	185.0
Stated interest rate (percent)	6.75%
Senior Notes | 10.000% senior unsecured notes due 2027
Debt Instrument [Line Items]
Long-term debt	$ 320.0	320.0
Stated interest rate (percent)	10.00%
Notes payable and other secured loans
Debt Instrument [Line Items]
Long-term debt	$ 174.9	$ 171.3

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

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