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Acquisitions and Dispositions - Narrative (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 28, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |
Common stock outstanding (in shares) |  | 203,531,320 | 220,440,993
Entity shares issued per acquiree share (in shares) | 0.88 |  |
CNXM |  |  |
Business Acquisition [Line Items] |  |  |
Common stock outstanding (in shares) | 42,107,071 |  |
CNXM | Public Unitholders |  |  |
Business Acquisition [Line Items] |  |  |
Ownership percentage in equity method investment | 46.90% |  |
CNXM | CNX |  |  |
Business Acquisition [Line Items] |  |  |
Ownership percentage in equity method investment | 53.10% |  |
CNXM CNX Midstream GP LLC CNX Resources Holding LLC Merger Agreements |  |  |
Business Acquisition [Line Items] |  |  |
Number of shares issued in acquisition (in shares) | 37,054,223 |  |
Cash consideration transferred | $ 384,623 |  |
Transaction costs |  | $ 11,271 |

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