Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Income (Loss)	$ 34,110	$ (13,214)	$ 93,558
Other Comprehensive Income (Loss):
Amortization of Prior Service Credits (net of tax: $601, $619, $697)	(1,804)	(1,786)	(2,075)
Recognized Net Actuarial Loss (net of tax: $(5,122), $(5,596), $(3,958))	15,374	16,161	11,773
Settlement Loss Recognized (net of tax: $(6), $0, $0)	16	0	0
Other Comprehensive Gain (Loss) before Reclassifications (net of tax: $(21,979), $109, $11,690)	65,617	(145)	(34,830)
Unrecognized Gain (Loss) on Derivatives:
Unrealized Gain (Loss) on Cash Flow Hedges (net of tax: $596, $674, $37)	1,721	(2,004)	(117)
Other Comprehensive Income (Loss)	80,924	12,226	(25,249)
Comprehensive Income (Loss)	115,034	(988)	68,309
Less: Comprehensive (Loss) Income Attributable to Noncontrolling Interest	0	(3,400)	17,551
Comprehensive Income Attributable to CONSOL Energy Inc. Stockholders	$ 115,034	$ 2,412	$ 50,758