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DERIVATIVE INSTRUMENTS - The Effect of Derivative Instruments on the Consolidated Statement of Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Derivative [Line Items]        
Realized (Loss) Gain on Commodity Derivative Instruments: $ (109,687) $ 54,653    
Unrealized (Loss) Gain on Commodity Derivative Instruments: (418,533) (47,125)    
(Loss) Gain on Commodity Derivative Instruments: (528,220) 7,528    
Commodity Derivatives        
Derivative [Line Items]        
Derivative asset 42,305 30,170 $ 2,309 $ 6,741
Derivatives settled not paid   270 $ 23,212 $ 900
Interest Rate Swaps        
Derivative [Line Items]        
(Loss) Gain on Commodity Derivative Instruments: 0 4    
Cash Received in Settlement of Interest Rate Swaps 0 1,215    
Unrealized Loss on Interest Rate Swaps 0 (1,211)    
Natural Gas | Commodity Swap        
Derivative [Line Items]        
Realized (Loss) Gain on Commodity Derivative Instruments: (83,477) 60,309    
Unrealized (Loss) Gain on Commodity Derivative Instruments: (504,143) 50,513    
(Loss) Gain on Commodity Derivative Instruments: (587,620) 110,822    
Natural Gas | Natural Gas Basis Swaps        
Derivative [Line Items]        
Realized (Loss) Gain on Commodity Derivative Instruments: (24,846) (5,720)    
Unrealized (Loss) Gain on Commodity Derivative Instruments: 85,994 (95,921)    
(Loss) Gain on Commodity Derivative Instruments: 61,148 (101,641)    
Natural Gas Liquids | Commodity Swap        
Derivative [Line Items]        
Realized (Loss) Gain on Commodity Derivative Instruments: (1,364) 64    
Unrealized (Loss) Gain on Commodity Derivative Instruments: (384) (1,717)    
(Loss) Gain on Commodity Derivative Instruments: $ (1,748) $ (1,653)