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Acquisitions and Disposal of Assets (Details) - USD ($) $ in Thousands |  |  | 9 Months Ended
--- | --- | --- | ---
Sep. 10, 2020 | Aug. 31, 2020 | Sep. 30, 2020
Assets and Liabilities Held for Sale [Line Items] |  |  |
Acquisition of assets |  |  | $ 3,276
Royalty Interest of Wells from SandRidge Mississippian Trust II |  |  |
Assets and Liabilities Held for Sale [Line Items] |  |  |
Acquisition of assets | $ 3,300 |  |
Royalty Interest of Wells from SandRidge Mississippian Trust II | SandRidge Mississippian Trust |  |  |
Assets and Liabilities Held for Sale [Line Items] |  |  |
Ownership percentage | 37.60% |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Corporate Headquarters Building |  |  |
Assets and Liabilities Held for Sale [Line Items] |  |  |
Proceeds from sale of buildings |  | $ 35,400 |

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