v3.25.2
Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets $ 31.7 $ 33.5
Total liabilities (548.6) (477.4)
Net liabilities (516.9) (443.9)
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
Net liabilities 0.0 0.0
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 31.7 33.5
Total liabilities (548.6) (477.4)
Net liabilities (516.9) (443.9)
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
Net liabilities 0.0 0.0
Commodity derivatives    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 25.0 24.9
Total liabilities (32.3) (27.4)
Commodity derivatives | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
Commodity derivatives | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 25.0 24.9
Total liabilities (32.3) (27.4)
Commodity derivatives | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
Interest Rate Swap    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 3.0 8.3
Total liabilities (5.0) (5.1)
Interest Rate Swap | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
Interest Rate Swap | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 3.0 8.3
Total liabilities (5.0) (5.1)
Interest Rate Swap | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
RINs commitment contracts    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 3.7 0.3
Total liabilities (2.5) (5.6)
RINs commitment contracts | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
RINs commitment contracts | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 3.7 0.3
Total liabilities (2.5) (5.6)
RINs commitment contracts | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Total liabilities 0.0 0.0
Environmental credits obligation surplus    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities (120.4) (30.6)
Environmental credits obligation surplus | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities 0.0 0.0
Environmental credits obligation surplus | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities (120.4) (30.6)
Environmental credits obligation surplus | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities 0.0 0.0
Inventory Intermediation Agreement obligation    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities (388.4) (408.7)
Inventory Intermediation Agreement obligation | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities 0.0 0.0
Inventory Intermediation Agreement obligation | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities (388.4) (408.7)
Inventory Intermediation Agreement obligation | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities $ 0.0 $ 0.0