Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)	Total CNX Resources Stockholders’ Equity	Non- Controlling Interest
Beginning Balance at Dec. 31, 2018	$ 5,081,743	$ 1,990	$ 2,264,063	$ 2,071,809	$ (7,904)	$ 4,329,958	$ 751,785
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) Income	(64,651)			(87,337)		(87,337)	22,686
Issuance of Common Stock	99	5	94			99
Purchase and Retirement of Common Stock	(33,497)	(31)	(24,937)	(8,529)		(33,497)
Shares Withheld for Taxes	(4,709)			(4,045)		(4,045)	(664)
Amortization of Stock-Based Compensation Awards	10,903		10,291			10,291	612
Other Comprehensive Income	44				44	44
Distributions to CNXM Noncontrolling Interest Holders	(15,123)						(15,123)
Ending Balance at Mar. 31, 2019	4,974,809	1,964	2,249,511	1,971,898	(7,860)	4,215,513	759,296
Beginning Balance at Dec. 31, 2019	4,962,309	1,870	2,199,605	1,971,676	(12,605)	4,160,546	801,763
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss) Income	(305,222)			(329,086)		(329,086)	23,864
Issuance of Common Stock	4	4				4
Shares Withheld for Taxes	(1,890)			(1,581)		(1,581)	(309)
Amortization of Stock-Based Compensation Awards	6,840		6,336			6,336	504
Other Comprehensive Income	112				112	112
Distributions to CNXM Noncontrolling Interest Holders	(17,443)						(17,443)
Ending Balance at Mar. 31, 2020	$ 4,644,710	$ 1,874	$ 2,205,941	$ 1,641,009	$ (12,493)	$ 3,836,331	$ 808,379