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Transactions with Affiliates - Narrative (Details) - USD ($)
12 Months Ended
Oct. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]        
Net, cash settlements on non-trading derivative instruments   $ 61,933,000 $ 44,279,000 $ 90,734,000
Debt outstanding   120,000,000 135,000,000  
Amended And Restated Subordinated Promissory Note | Subordinated Debt        
Related Party Transaction [Line Items]        
Debt issued $ 25,000,000      
Debt outstanding   20,000,000 0  
Amended And Restated Subordinated Promissory Note | Subordinated Debt | Prime Rate        
Related Party Transaction [Line Items]        
Basis spread on variable rate 2.00%      
Amended And Restated Subordinated Promissory Note | Subordinated Debt | Minimum        
Related Party Transaction [Line Items]        
Subordinated debt, advances $ 1,000,000      
Amended And Restated Subordinated Promissory Note | Subordinated Debt | Maximum        
Related Party Transaction [Line Items]        
Subordinated debt, advances $ 25,000,000      
Affiliated Entity        
Related Party Transaction [Line Items]        
Net, cash settlements on non-trading derivative instruments   0 100,000 200,000
Retailco and NuDevco Retail        
Related Party Transaction [Line Items]        
Payments of distributions to affiliates   14,500,000 14,800,000 15,100,000
Allocated Overhead Costs | Affiliated Entity        
Related Party Transaction [Line Items]        
Affiliate costs, due from (to) affiliates   2,700,000 (500,000) (1,500,000)
Affiliate cost   1,600,000 1,300,000 1,000,000
Payment of Income Taxes Incurred by the Company | Affiliated Owners        
Related Party Transaction [Line Items]        
Payments of distributions to affiliates   $ 100,000 $ 2,600,000 $ 14,400,000