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Summary of Significant Accounting Policies - Equity Investments (Details) - USD ($) $ in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Jun. 04, 2024 | Dec. 31, 2023 | Sep. 30, 2024 | Sep. 30, 2024
Class of Stock [Line Items] |  |  |  |
Unrealized loss recognized |  |  | $ 18.4 | $ 19.4
Common Stock Issued | Vital Energy, Inc |  |  |  |
Class of Stock [Line Items] |  |  |  |
Shares of Vital Energy's common stock held (in shares) |  |  | 1,027,907 | 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 | 2024 Divestitures | Vital Energy, Inc |  |  |  |
Class of Stock [Line Items] |  |  |  |
Noncash or part noncash divestiture, common stock, shares (in shares) |  |  | 75,000 |
Realized gain on sale |  |  | $ 0.1 |
Convertible Preferred Stock | 2023 Divestitures | Vital Energy, Inc |  |  |  |
Class of Stock [Line Items] |  |  |  |
Noncash or part noncash divestiture, consideration received (in shares) | 541,155 |  |  |
Preferred stock, dividend rate (in percent) | 2.00% |  |  |

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