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Fair Value - Schedule of Quantitative Information (Details)
$ in Thousands
 9 Months Ended
Sep. 30, 2023
USD ($)
MMBTU
$ / MMBTU
Dec. 31, 2022
USD ($)
Fair Value, Recurring [Member] | Equity Investments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments $ 50,477 $ 54,284
Fair Value, Recurring [Member] | Equity Investments [Member] | Level 3 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments $ 50,477 $ 54,284
Fair Value, Recurring [Member] | Discounted Cash Flows [Member] | Equity Investments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, terminal date 2026  
Fair Value, Recurring [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Discount Rate [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 25  
Fair Value, Recurring [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Market Exit Reduction [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 50  
Fair Value, Recurring [Member] | Minimum [Member] | Market Approach [Member] | Equity Investments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, comparable enterprise values $ 130,000  
Equity investments, time to liquidity event 1 year  
Fair Value, Recurring [Member] | Minimum [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Annual Revenues [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, annual revenues $ 6,000  
Fair Value, Recurring [Member] | Minimum [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Revenue Market Multiples [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 0.42  
Fair Value, Recurring [Member] | Maximum [Member] | Market Approach [Member] | Equity Investments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, comparable enterprise values $ 388,600  
Fair Value, Recurring [Member] | Maximum [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Annual Revenues [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, annual revenues $ 265,000  
Fair Value, Recurring [Member] | Maximum [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Revenue Market Multiples [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 5.47  
Fair Value, Recurring [Member] | Weighted Average [Member] | Market Approach [Member] | Equity Investments [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, comparable enterprise values $ 246,000  
Fair Value, Recurring [Member] | Weighted Average [Member] | Discounted Cash Flows [Member] | Equity Investments [Member] | Revenue Market Multiples [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 1.76  
Natural Gas Exchange Agreements [Member] | Purchase [Member] | Minimum [Member] | Internally Derived Weighted Average Cost Of Gas [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 2.62  
Transaction/Delivery Volumes | MMBTU 140,000  
Natural Gas Exchange Agreements [Member] | Purchase [Member] | Maximum [Member] | Internally Derived Weighted Average Cost Of Gas [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 3.86  
Transaction/Delivery Volumes | MMBTU 310,000  
Natural Gas Exchange Agreements [Member] | Purchase [Member] | Weighted Average [Member] | Internally Derived Weighted Average Cost Of Gas [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 3.3  
Natural Gas Exchange Agreements [Member] | Sales [Member] | Minimum [Member] | Internally Derived Weighted Average Cost Of Gas [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 3.22  
Transaction/Delivery Volumes | MMBTU 75,000  
Natural Gas Exchange Agreements [Member] | Sales [Member] | Maximum [Member] | Internally Derived Weighted Average Cost Of Gas [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 11.65  
Transaction/Delivery Volumes | MMBTU 310,000  
Natural Gas Exchange Agreements [Member] | Sales [Member] | Weighted Average [Member] | Internally Derived Weighted Average Cost Of Gas [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 8.03  
Natural Gas Exchange Agreements [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative Liability $ (15,373)