Basis of Presentation	3 Months Ended
Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION: The accompanying Unaudited Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for future periods. The Consolidated Balance Sheet at December 31, 2017 has been derived from the Audited Consolidated Financial Statements at that date but does not include all the notes required by generally accepted accounting principles for complete financial statements. For further information, refer to the Consolidated Financial Statements and related notes for the year ended December 31, 2017 included in CNX Resources Corporation's ("CNX," the "Company," "we," "us," or "our") Annual Report on Form 10-K. Certain amounts in prior periods have been reclassified to conform to the current period presentation. On November 28, 2017, the Company spun-off the coal operations previously held by CNX, which were comprised of the Pennsylvania Mining Complex, Baltimore Marine Terminal, its direct and indirect ownership interest in CONSOL Coal Resources LP, formerly known as CNXC Coal Resources LP, and other related coal assets. The financial position, results of operations and cash flows of the coal operations are reflected as discontinued operations for all periods presented through the date of the spin-off. See Note 5 - Discontinued Operations to the Unaudited Consolidated Financial statements for further details regarding the spin-off. The Consolidated Balance Sheet at March 31, 2018 reflects the full consolidation of CNX Gathering, LLC's assets and liabilities as a result of the purchase of NBL Midstream, LLC's interest on January 3, 2018 (See Note 6 - Acquisitions and Dispositions for more information). The purchase accounting remains preliminary as contemplated by Generally Accepted Accounting Principles and, as a result, there may be upon further review future changes to the value, as well as allocation, of the acquired assets and liabilities, associated amortization expense, goodwill and the gain on the previously held equity interest. These changes may be material.

BASIS OF PRESENTATION:

The accompanying Unaudited Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for future periods.

The Consolidated Balance Sheet at December 31, 2017 has been derived from the Audited Consolidated Financial Statements at that date but does not include all the notes required by generally accepted accounting principles for complete financial statements. For further information, refer to the Consolidated Financial Statements and related notes for the year ended December 31, 2017 included in CNX Resources Corporation's ("CNX," the "Company," "we," "us," or "our") Annual Report on Form 10-K.

Certain amounts in prior periods have been reclassified to conform to the current period presentation. On November 28, 2017, the Company spun-off the coal operations previously held by CNX, which were comprised of the Pennsylvania Mining Complex, Baltimore Marine Terminal, its direct and indirect ownership interest in CONSOL Coal Resources LP, formerly known as CNXC Coal Resources LP, and other related coal assets. The financial position, results of operations and cash flows of the coal operations are reflected as discontinued operations for all periods presented through the date of the spin-off. See Note 5 - Discontinued Operations to the Unaudited Consolidated Financial statements for further details regarding the spin-off.

The Consolidated Balance Sheet at March 31, 2018 reflects the full consolidation of CNX Gathering, LLC's assets and liabilities as a result of the purchase of NBL Midstream, LLC's interest on January 3, 2018 (See Note 6 - Acquisitions and Dispositions for more information). The purchase accounting remains preliminary as contemplated by Generally Accepted Accounting Principles and, as a result, there may be upon further review future changes to the value, as well as allocation, of the acquired assets and liabilities, associated amortization expense, goodwill and the gain on the previously held equity interest. These changes may be material.