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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, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Derivative [Line Items]        
Realized Gain (Loss) on Commodity Derivative Instruments: $ 54,653 $ (61,032)    
Unrealized Gain (Loss) on Commodity Derivative Instruments: (47,125) 823,199    
Gain on Commodity Derivative Instruments: 7,528 762,167    
Commodity Derivatives        
Derivative [Line Items]        
Derivative asset 30,170 1,311 $ 6,741 $ 77,662
Derivatives settled not paid 270   $ 900  
Interest Rate Swaps        
Derivative [Line Items]        
Gain on Commodity Derivative Instruments: 4 (161)    
Cash Received in Settlement of Interest Rate Swaps 1,215 799    
Unrealized Loss on Interest Rate Swaps (1,211) (960)    
Natural Gas | Commodity Swap        
Derivative [Line Items]        
Realized Gain (Loss) on Commodity Derivative Instruments: 60,309 (49,926)    
Unrealized Gain (Loss) on Commodity Derivative Instruments: 50,513 980,836    
Gain on Commodity Derivative Instruments: 110,822 930,910    
Natural Gas | Natural Gas Basis Swaps        
Derivative [Line Items]        
Realized Gain (Loss) on Commodity Derivative Instruments: (5,720) (11,106)    
Unrealized Gain (Loss) on Commodity Derivative Instruments: (95,921) (158,235)    
Gain on Commodity Derivative Instruments: (101,641) (169,341)    
Natural Gas Liquids | Commodity Swap        
Derivative [Line Items]        
Realized Gain (Loss) on Commodity Derivative Instruments: 64 0    
Unrealized Gain (Loss) on Commodity Derivative Instruments: (1,717) 598    
Gain on Commodity Derivative Instruments: $ (1,653) $ 598