Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Finance lease obligations	$ 704.6	$ 693.6
Less: unamortized debt issuance costs and discounts	(26.2)	(27.1)
Total debt	2,871.0	2,775.1
Less: current maturities	77.2	73.3
Total long-term debt	2,793.8	2,701.8
Secured Debt \| Senior secured term loan
Debt Instrument [Line Items]
Long-term debt	1,398.4	1,398.4
Unamortized fair value discount	1.6	1.6
Secured Debt \| Senior secured revolving credit facility
Debt Instrument [Line Items]
Long-term debt	87.0	0.0
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	$ 202.2	$ 205.2

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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