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Acquisitions and Dispositions Consideration Given In Acquisition (Details) - Midstream Acquisition [Member] - USD ($) $ in Thousands | Jan. 03, 2018 | Dec. 14, 2017
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Business Acquisition [Line Items] |  |
Cash Consideration | $ 305,000 | $ 305,000
CNX Gathering Cash on Hand at January 3, 2018 Distributed to Noble | 2,620 |
Fair Value of Previously Held Equity Interest | 799,033 |
Total Estimated Fair Value of Consideration Transferred | $ 1,106,653 |

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