Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total Revenue from Contracts with Customers		$ 292,016	$ 214,292	$ 925,998	$ 610,688
Unrealized Loss on Commodity Derivative Instruments		(147,306)	0	(167,743)	0
Miscellaneous Other Income		4,281	21,001	9,504	71,107
Gain on Sale of Assets		21	7,926	10,563	15,241
Total Revenue and Other Income		149,012	243,219	778,322	697,036
Costs and Expenses:
Operating and Other Costs		189,081	153,031	549,239	481,712
Depreciation, Depletion and Amortization		55,977	54,959	168,073	156,057
Freight Expense		19,348	12,909	72,371	19,141
Selling, General and Administrative Costs		22,476	11,117	68,982	39,726
Loss (Gain) on Debt Extinguishment		132	(1,078)	(657)	(17,911)
Interest Expense, net		16,045	15,723	47,493	46,116
Total Costs and Expenses		303,059	246,661	905,501	724,841
Loss Before Income Tax		(154,047)	(3,442)	(127,179)	(27,805)
Income Tax (Benefit) Expense		(40,258)	5,918	(43,966)	143
Net Loss		(113,789)	(9,360)	(83,213)	(27,948)
Less: Net Loss Attributable to Noncontrolling Interest		0	(2,136)	0	(5,108)
Net Loss Attributable to CONSOL Energy Inc. Stockholders		$ (113,789)	$ (7,224)	$ (83,213)	$ (22,840)
Loss per Share:
Total Basic Loss per Share (in dollars per share)		$ (3.30)	$ (0.28)	$ (2.42)	$ (0.88)
Total Dilutive Loss per Share (in dollars per share)		$ (3.30)	$ (0.28)	$ (2.42)	$ (0.88)
Coal Revenue [Member]
Total Revenue from Contracts with Customers	[1]	$ 258,560	$ 184,375	$ 803,927	$ 542,140
Terminal Revenue [Member]
Total Revenue from Contracts with Customers		14,108	17,008	49,700	49,407
Freight Revenue [Member]
Total Revenue from Contracts with Customers		$ 19,348	$ 12,909	$ 72,371	$ 19,141

[1] For the three and six months ended September 30, 2021 and 2020, the PAMC segment had revenues from the following customers, each comprising over 10% of the Company's total sales