Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash Flows from Operating Activities:
Net Loss	$ (305,222)	$ (64,651)
Adjustments to Reconcile Net Loss to Net Cash Provided by Operating Activities:
Depreciation, Depletion and Amortization	129,164	125,161
Amortization of Deferred Financing Costs	2,447	1,707
Impairment of Exploration and Production Properties	61,849	0
Impairment of Goodwill	473,045	0
Stock-Based Compensation	6,840	10,903
(Gain) Loss on Asset Sales and Abandonments	(12,055)	3,085
(Gain) Loss on Debt Extinguishment	(11,263)	7,537
(Gain) Loss on Commodity Derivative Instruments	(115,142)	195,376
Loss on Other Derivative Instruments	10,639	0
Net Cash Received (Paid) in Settlement of Commodity Derivative Instruments	151,161	(41,382)
Deferred Income Taxes	(99,746)	(11,559)
Equity in Loss (Earnings) of Affiliates	161	(503)
Return on Equity Investment	0	1,306
Changes in Operating Assets:
Accounts and Notes Receivable	43,639	94,480
Recoverable Income Taxes	(52,836)	35,888
Supplies Inventories	(3,282)	(6,927)
Prepaid Expenses	4,710	3,961
Changes in Other Assets	692	(6)
Changes in Operating Liabilities:
Accounts Payable	2,322	(5,962)
Accrued Interest	(5,063)	2,180
Other Operating Liabilities	(13,626)	(34,434)
Changes in Other Liabilities	(1,047)	(7,508)
Net Cash Provided by Operating Activities	267,387	308,652
Cash Flows from Investing Activities:
Capital Expenditures	(152,049)	(299,138)
Proceeds from Asset Sales	13,975	5,806
Net Cash Used in Investing Activities	(138,074)	(293,332)
Cash Flows from Financing Activities:
Payments on Miscellaneous Borrowings	(1,792)	(1,747)
Payments on Long-Term Notes	(59,880)	(405,876)
Net Proceeds from CNXM Revolving Credit Facility	35,250	52,650
Payments on CNX Revolving Credit Facility	(224,000)	(98,000)
Proceeds from Issuance of CNX Senior Notes	0	500,000
Net Proceeds from CSG Non-Revolving Credit Facilities	173,250	0
Distributions to CNXM Noncontrolling Interest Holders	(17,443)	(15,123)
Proceeds from Issuance of Common Stock	4	99
Shares Withheld for Taxes	(1,890)	(4,709)
Purchases of Common Stock	0	(32,498)
Debt Issuance and Financing Fees	(11,069)	(3,342)
Net Cash Used in Financing Activities	(107,570)	(8,546)
Net Increase in Cash, Cash Equivalents and Restricted Cash	21,743	6,774
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	16,283	17,198
Cash, Cash Equivalents, and Restricted Cash at End of Period	$ 38,026	$ 23,972