Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Lines of credit	$ 330.0	$ 317.5
Senior secured second lien notes	315.0	315.0
Unamortized debt issuance costs	(1.9)	(2.2)
Debt discount	(1.9)	(2.1)
Finance leases	41.7	38.8
Total debt and finance leases	682.9	667.0
Less: current maturities	(8.5)	(7.7)
Long-term debt and finance leases, net	$ 674.4	$ 659.3