Segment Information - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue and Other Income:	$ 2,506,635	$ 2,280,018	$ 1,261,034
Adjusted EBITDA	1,047,688	806,733	378,246
Segment Assets	2,675,003	2,704,377	2,573,517
Depreciation, Depletion and Amortization	241,317	226,878	224,583
Capital Expenditures	167,791	171,506	132,752
Coal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	2,106,366	2,018,662	1,092,022
Terminal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	106,166	78,915	65,193
Freight Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	294,103	182,441	103,819
Corporate And Reconciling Items
Segment Reporting Information [Line Items]
Revenue and Other Income:	97,511	49,609	6,942
Adjusted EBITDA	(51,795)	(18,621)	(25,725)
Segment Assets	1,009,247	865,676	691,031
Depreciation, Depletion and Amortization	33,813	21,954	13,022
Capital Expenditures	18,673	59,459	30,882
Corporate And Reconciling Items | Coal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	81,756	44,778	6,942
Corporate And Reconciling Items | Terminal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	0	0	0
Corporate And Reconciling Items | Freight Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	15,755	4,831	0
PAMC | Operating Segments
Segment Reporting Information [Line Items]
Revenue and Other Income:	2,302,958	2,151,494	1,188,899
Adjusted EBITDA	1,019,161	773,095	360,480
Segment Assets	1,582,434	1,756,368	1,773,609
Depreciation, Depletion and Amortization	202,833	200,320	206,727
Capital Expenditures	144,550	107,401	100,896
PAMC | Operating Segments | Coal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	2,024,610	1,973,884	1,085,080
PAMC | Operating Segments | Terminal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	0	0	0
PAMC | Operating Segments | Freight Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	278,348	177,610	103,819
CONSOL Marine Terminal | Operating Segments
Segment Reporting Information [Line Items]
Revenue and Other Income:	106,166	78,915	65,193
Adjusted EBITDA	80,322	52,259	43,491
Segment Assets	83,322	82,333	108,877
Depreciation, Depletion and Amortization	4,671	4,604	4,834
Capital Expenditures	4,568	4,646	974
CONSOL Marine Terminal | Operating Segments | Coal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	0	0	0
CONSOL Marine Terminal | Operating Segments | Terminal Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	106,166	78,915	65,193
CONSOL Marine Terminal | Operating Segments | Freight Revenue
Segment Reporting Information [Line Items]
Revenue and Other Income:	$ 0	$ 0	$ 0