v3.25.4
FAIR VALUE MEASUREMENTS (Change in Fair Value at Level 3) (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3   $ 0 $ 0  
Martinez Acquistion        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Payment for contingent consideration liability $ 18,800,000 18,800,000    
Qualified Plan        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Defined Benefit Plan, Plan Assets, Amount   457,200,000 394,700,000 $ 349,300,000
Other Assets | Qualified Plan        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Defined Benefit Plan, Plan Assets, Amount   18,600,000 19,400,000  
Contingent consideration obligation        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning of period   $ 0 21,600,000  
Settlements     (18,800,000)  
Unrealized gain included in earnings     (2,800,000)  
Balance at end of period     $ 0