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Summary of Significant Accounting Policies - Equity Investments (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 04, 2024
Dec. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Class of Stock [Line Items]              
Unrealized gain (loss) recognized     $ 4.7 $ (8.8) $ (5.2) $ (1.0)  
2025 Divestitures | Vital Energy, Inc              
Class of Stock [Line Items]              
Realized loss on sale     $ 10.5        
Common Stock Issued | 2023 Divestitures | Vital Energy, Inc              
Class of Stock [Line Items]              
Investment owned, balance, shares     685,271   685,271   1,027,907
Common Stock Issued | 2023 Divestitures | Vital Energy, Inc              
Class of Stock [Line Items]              
Noncash or part noncash divestiture, consideration received (in shares)   561,752          
Common Stock Issued | 2025 Divestitures | Vital Energy, Inc              
Class of Stock [Line Items]              
Noncash or part noncash divestiture, common stock, shares (in shares)     342,636 0   0  
Convertible Preferred Stock | Vital Energy, Inc              
Class of Stock [Line Items]              
Shares issued upon conversion (in shares) 541,155 541,155          
Convertible Preferred Stock | 2023 Divestitures              
Class of Stock [Line Items]              
Preferred stock, dividend rate (in percent) 2.00%            
Convertible Preferred Stock | 2023 Divestitures | Vital Energy, Inc              
Class of Stock [Line Items]              
Preferred stock, dividend rate (in percent) 2.00% 2.00%