Revolving Credit Facilities	12 Months Ended
Revolving Credit Facilities	Dec. 31, 2020
Short-term Debt, Other Disclosures [Abstract]
Revolving Credit Facilities	REVOLVING CREDIT FACILITIES: CNX In April 2019, CNX amended its senior revolving credit facility ("Credit Facility") and extended its maturity to April 2024. The lenders' commitments remained unchanged at $2,100,000, with an accordion feature that allows the Company to increase commitments to $3,000,000. In addition, the cumulative credit basket for dividends and distributions was replaced with a basket for dividends and distributions subject to a pro forma net leverage ratio of at least 3.00 to 1.00 and availability under the Credit Facility of at least 15% of the aggregate commitments. In April 2020, as part of the semi-annual borrowing base redetermination, both the lenders' commitments and borrowing base decreased to $1,900,000, and the $650,000 letters of credit aggregate sub-limit remained unchanged. The amount of cash on hand that CNX may have is also limited to $150,000 when loans under the credit agreement are outstanding, subject to certain exceptions. In October 2020, as part of the semi-annual borrowing base redetermination, the lenders reaffirmed CNX's $1,900,000 borrowing base. In November 2020, as part of the issuance of the $500,000 of 6.00% Senior Notes due January 2029 (See Note 12 - Long-Term Debt), both the lenders' commitments and borrowing base decreased to $1,775,000. The CNX Credit Facility is secured by substantially all of the assets of CNX and certain of its subsidiaries (excluding the certain excluded subsidiaries, which includes Cardinal States Gathering LLC, CNX Midstream GP LLC and CNXM, and their respective subsidiaries). Under the terms of the agreement, borrowings under the revolving credit facility will bear interest at CNX's option at either: •the base rate, which is the highest of (i) the federal funds open rate plus 0.50%, (ii) PNC Bank, N.A.’s prime rate, or (iii) the one-month LIBOR rate plus 1.0%, in each case, plus a margin ranging from 0.75% to 1.75%; or •the LIBOR rate, which is the LIBOR rate plus a margin ranging from 1.75% to 2.75%. The CNX Credit Facility contains a number of affirmative and negative covenants including those that, except in certain circumstances, limit the Company and the subsidiary guarantors' ability to create, incur, assume or suffer to exist indebtedness, create or permit to exist liens on properties, dispose of assets, make investments, purchase or redeem CNX common stock, pay dividends, merge with another corporation and amend the senior unsecured notes. The Company must also mortgage 85% of the value of its proved reserves and 85% of the value of its proved developed producing reserves, in each case, which are included in the borrowing base, maintain applicable deposit, securities and commodities accounts with the lenders or affiliates thereof, and enter into control agreements with respect to such applicable accounts. The CNX Credit Facility contains customary events of default, including, but not limited to, a cross-default to certain other debt, breaches of representations and warranties, change of control events and breaches of covenants. The CNX Credit Facility also requires that CNX maintain a maximum net leverage ratio of no greater than 4.00 to 1.00, which is calculated as the ratio of debt less cash on hand to consolidated EBITDA, measured quarterly. CNX must also maintain a minimum current ratio of no less than 1.00 to 1.00, which is calculated as the ratio of current assets, plus revolver availability, to current liabilities, excluding borrowings under the revolver, measured quarterly. The calculation of all of the ratios exclude CNXM. CNX was in compliance with all financial covenants as of December 31, 2020. At December 31, 2020, the CNX Credit Facility had $160,800 of borrowings outstanding and $185,272 of letters of credit outstanding, leaving $1,428,928 of unused capacity. At December 31, 2019, the CNX Credit Facility had $661,000 of borrowings outstanding and $204,726 of letters of credit outstanding, leaving $1,234,274 of unused capacity. CNX Midstream Partners LP (CNXM) CNXM's revolving credit facility was not impacted by the Merger (See Note 4 - Acquisitions and Dispositions). In April 2019, CNXM amended its senior secured revolving credit facility (the “CNXM Credit Facility”) and extended its maturity to April 2024. The lenders' commitments remained unchanged at $600,000, with an accordion feature that allows CNXM to increase the available borrowings by up to an additional $250,000 under certain terms and conditions. The CNXM Credit Facility includes the ability to issue letters of credit up to $100,000 in the aggregate. Under the terms of the amended agreement, borrowings under the CNXM Credit Facility will bear interest at CNXM's option at either: •the base rate, which is the highest of (i) the federal funds open rate plus 0.50%, (ii) PNC Bank, N.A.’s prime rate, or (iii) the one-month LIBOR rate plus 1.0%, in each case, plus a margin ranging from 0.50% to 1.50%; or •the LIBOR rate, plus a margin ranging from 1.50% to 2.50%. Fees and interest rate spreads under the CNXM Credit Facility are based on the total leverage ratio, measured quarterly. The CNXM Credit Facility requires CNXM to comply with a number of affirmative and negative covenants. In addition, CNXM is obligated to maintain at the end of each fiscal quarter (w) for so long as at least $150,000 of the CNXM 6.50% Senior Notes due March 2026 (CNXM Senior Notes) are outstanding, a maximum total leverage ratio of no greater than 5.25 to 1.00 (which increases to no greater than 5.50 to 1.00 during qualifying acquisition periods); (x) if less than $150,000 of the CNXM Senior Notes are outstanding, a maximum total leverage ratio of no greater than 4.75 to 1.00 (which increases to no greater than 5.25 to 1.00 during qualifying acquisition periods); (y) a maximum secured leverage ratio of no greater than 3.50 to 1.00 and (z) a minimum interest coverage ratio of no less than 2.50 to1.00. CNXM was in compliance with all financial covenants as of December 31, 2020. The CNXM Credit Facility also contains customary events of default, including, but not limited to, a cross-default to certain other debt, breaches of representations and warranties, change of control events and breaches of covenants. The obligations under the revolving credit facility are secured by substantially all of the assets of CNXM and its wholly-owned subsidiaries. CNX is not a guarantor under the CNXM Credit Facility. At December 31, 2020, the CNXM Credit Facility had $291,000 of borrowings outstanding and $30 of letters of credit outstanding, leaving $308,970 of unused capacity. At December 31, 2019, the CNXM Credit Facility had $311,750 of borrowings outstanding, leaving $288,250 of unused capacity.