Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total Revenue from Contracts with Customers		$ 303,222	$ 121,296	$ 633,982	$ 396,396
Miscellaneous Other (Loss) Income		(18,403)	33,936	(15,214)	50,106
Gain on Sale of Assets		2,340	7,329	10,542	7,315
Total Revenue and Other Income		287,159	162,561	629,310	453,817
Costs and Expenses:
Operating and Other Costs		175,048	116,406	360,158	328,681
Depreciation, Depletion and Amortization		52,199	46,155	112,096	101,098
Freight Expense		26,010	3,085	53,023	6,232
Selling, General and Administrative Costs		22,542	10,939	46,506	28,609
Gain on Debt Extinguishment		(106)	0	(789)	(16,833)
Interest Expense, net		16,187	14,722	31,448	30,393
Total Costs and Expenses		291,880	191,307	602,442	478,180
(Loss) Earnings Before Income Tax		(4,721)	(28,746)	26,868	(24,363)
Income Tax Benefit		(8,893)	(7,683)	(3,708)	(5,775)
Net Income (Loss)		4,172	(21,063)	30,576	(18,588)
Less: Net Loss Attributable to Noncontrolling Interest		0	(3,080)	0	(2,972)
Net Income (Loss) Attributable to CONSOL Energy Inc. Stockholders		$ 4,172	$ (17,983)	$ 30,576	$ (15,616)
Earnings (Loss) per Share:
Total Basic Earnings (Loss) per Share (in dollars per share)		$ 0.12	$ (0.69)	$ 0.89	$ (0.60)
Total Dilutive Earnings (Loss) per Share (in dollars per share)		$ 0.12	$ (0.69)	$ 0.87	$ (0.60)
Coal Revenue [Member]
Total Revenue from Contracts with Customers	[1]	$ 259,832	$ 102,313	$ 545,367	$ 357,765
Terminal Revenue [Member]
Total Revenue from Contracts with Customers		17,380	15,898	35,592	32,399
Freight Revenue [Member]
Total Revenue from Contracts with Customers		$ 26,010	$ 3,085	$ 53,023	$ 6,232

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