Segment Information - Schedule of Adjusted EBITDA (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net Income (Loss)		$ 230,377	$ (4,450)
Income Tax Expense (Benefit)		41,593	(3,522)
Interest Expense		10,279	14,352
Interest Income		(1,667)	(1,329)
Depreciation, Depletion and Amortization		59,551	55,954
Stock-Based Compensation		4,792	4,201
Loss on Debt Extinguishment		1,375	2,122
Fair Value Adjustment of Commodity Derivative Instruments			101,902
Adjusted EBITDA	[1]	346,300	169,230
PAMC
Segment Reporting Information [Line Items]
Net Income (Loss)		276,276	2,097
Income Tax Expense (Benefit)		0	0
Interest Expense		(301)	189
Interest Income		(408)	(415)
Depreciation, Depletion and Amortization		51,371	50,956
Stock-Based Compensation		4,025	3,529
Loss on Debt Extinguishment		0	0
Fair Value Adjustment of Commodity Derivative Instruments			101,902
Adjusted EBITDA		330,963	158,258
CONSOL Marine Terminal
Segment Reporting Information [Line Items]
Net Income (Loss)		17,789	11,613
Income Tax Expense (Benefit)		0	0
Interest Expense		1,526	1,531
Interest Income		0	0
Depreciation, Depletion and Amortization		1,156	1,165
Stock-Based Compensation		144	168
Loss on Debt Extinguishment		0	0
Fair Value Adjustment of Commodity Derivative Instruments			0
Adjusted EBITDA		20,615	14,477
Other
Segment Reporting Information [Line Items]
Net Income (Loss)		(63,688)	(18,160)
Income Tax Expense (Benefit)		41,593	(3,522)
Interest Expense		9,054	12,632
Interest Income		(1,259)	(914)
Depreciation, Depletion and Amortization		7,024	3,833
Stock-Based Compensation		623	504
Loss on Debt Extinguishment		1,375	2,122
Fair Value Adjustment of Commodity Derivative Instruments			0
Adjusted EBITDA		$ (5,278)	$ (3,505)

[1] Refer to “Reconciliation of Segment Information to Consolidated Amounts” for the reconciliation of Adjusted EBITDA, a non-GAAP measure, to its most directly comparable GAAP measure.