v3.26.1
Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured on Recurring Basis (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets $ 89.4 $ 15.0
Consolidated Net RINs deficit (822.5) (107.4)
Inventory Intermediation Agreement obligation (95.2) (119.5)
Total liabilities (1,090.2) (248.6)
Net liabilities (1,000.8) (233.6)
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Consolidated Net RINs deficit 0.0 0.0
Inventory Intermediation Agreement obligation 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 89.4 15.0
Consolidated Net RINs deficit (822.5) (107.4)
Inventory Intermediation Agreement obligation (95.2) (119.5)
Total liabilities (1,090.2) (248.6)
Net liabilities (1,000.8) (233.6)
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0 0.0
Consolidated Net RINs deficit 0.0 0.0
Inventory Intermediation Agreement obligation 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 84.3 15.0
Total liabilities (88.6) (16.7)
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 84.3 15.0
Total liabilities (88.6) (16.7)
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 4.4  
Total liabilities (3.9) (2.3)
Interest Rate Swap | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 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 4.4  
Total liabilities (3.9) (2.3)
Interest Rate Swap | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 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 0.7  
Total liabilities   (2.7)
RINs commitment contracts | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0  
Total liabilities   0.0
RINs commitment contracts | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.7  
Total liabilities   (2.7)
RINs commitment contracts | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets 0.0  
Total liabilities   $ 0.0
Crude exchange contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities (80.0)  
Crude exchange contract | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities 0.0  
Crude exchange contract | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities (80.0)  
Crude exchange contract | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total liabilities $ 0.0