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Long-Term Debt - Summary of Principal Payments on Debt Obligations and Future Minimum Rentals on Capital Lease Obligations (Details) - CALUMET SPECIALTY PRODUCTS PARTNERS, L.P.
$ in Millions
Jun. 30, 2024
USD ($)
Maturities of long-term debt  
2024 $ 13.5
2025 392.4
2026 32.0
2027 695.9
2028 423.3
Thereafter 478.0
Total $ 2,035.1