GUARANTOR SUBSIDIARIES FINANCIAL INFORMATION - Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities			$ 278,192	$ 104,027
Cash Flows from Investing Activities:
Capital Expenditures	$ (34,243)	$ (14,208)	(56,199)	(23,229)
Proceeds from Sales of Assets			1,229	16,985
(Investments in), net of Distributions from, Subsidiaries			0	0
Net Cash Used in Investing Activities			(54,970)	(6,244)
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations			(6,597)	(1,990)
Net Payments on Revolver - MLP			0	(11,000)
Affiliated Credit Facility			0
Distributions to Noncontrolling Interest			(11,174)	(10,935)
Shares/Units Withheld for Taxes			(2,871)	(808)
Intercompany Contributions/(Distributions)			0	0
Payments Of Distributions To Parent			0	(79,622)
Spin Distribution to CNX Resources			(18,234)	0
Repurchases of Common Stock			(3,281)	0
Debt-Related Financing Fees			(1,767)	0
Net Cash Used in Financing Activities			(92,698)	(104,355)
Term Loan A
Cash Flows from Financing Activities:
Repayment of debt			(26,250)
Term Loan B
Cash Flows from Financing Activities:
Repayment of debt			(2,000)
Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Repayment of debt			(20,524)
Elimination
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities			0	0
Cash Flows from Investing Activities:
Capital Expenditures			0	0
Proceeds from Sales of Assets			0	0
(Investments in), net of Distributions from, Subsidiaries			(17,519)	(17,165)
Net Cash Used in Investing Activities			(17,519)	(17,165)
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations			0	0
Net Payments on Revolver - MLP				0
Affiliated Credit Facility			0
Distributions to Noncontrolling Interest			17,519	17,165
Shares/Units Withheld for Taxes			0	0
Intercompany Contributions/(Distributions)			0	0
Payments Of Distributions To Parent				0
Spin Distribution to CNX Resources			0
Repurchases of Common Stock			0
Debt-Related Financing Fees			0	0
Net Cash Used in Financing Activities			17,519	17,165
Elimination | Term Loan A
Cash Flows from Financing Activities:
Repayment of debt			0
Elimination | Term Loan B
Cash Flows from Financing Activities:
Repayment of debt			0
Elimination | Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Repayment of debt			0
Parent Issuer | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities			(1,344)	(60,001)
Cash Flows from Investing Activities:
Capital Expenditures			0	0
Proceeds from Sales of Assets			0	0
(Investments in), net of Distributions from, Subsidiaries			21,478	28,661
Net Cash Used in Investing Activities			21,478	28,661
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations			0	0
Net Payments on Revolver - MLP				0
Affiliated Credit Facility			36,083
Distributions to Noncontrolling Interest			0	0
Shares/Units Withheld for Taxes			0	0
Intercompany Contributions/(Distributions)			0	79,622
Payments Of Distributions To Parent				(79,622)
Spin Distribution to CNX Resources
Repurchases of Common Stock			(3,281)
Debt-Related Financing Fees			(1,767)	0
Net Cash Used in Financing Activities			(17,739)	0
Parent Issuer | Reportable Legal Entities | Term Loan A
Cash Flows from Financing Activities:
Repayment of debt			(26,250)
Parent Issuer | Reportable Legal Entities | Term Loan B
Cash Flows from Financing Activities:
Repayment of debt			(2,000)
Parent Issuer | Reportable Legal Entities | Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Repayment of debt			(20,524)
Guarantor | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities			201,323	123,274
Cash Flows from Investing Activities:
Capital Expenditures			(44,020)	(17,757)
Proceeds from Sales of Assets			1,064	15,485
(Investments in), net of Distributions from, Subsidiaries			(3,959)	(11,496)
Net Cash Used in Investing Activities			(46,915)	(13,768)
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations			(5,186)	(1,938)
Net Payments on Revolver - MLP				0
Affiliated Credit Facility			0
Distributions to Noncontrolling Interest			0	0
Shares/Units Withheld for Taxes			(1,972)	(1)
Intercompany Contributions/(Distributions)			0	(79,622)
Payments Of Distributions To Parent				0
Spin Distribution to CNX Resources			(18,234)
Repurchases of Common Stock			0
Debt-Related Financing Fees			0	0
Net Cash Used in Financing Activities			(25,392)	(81,561)
Guarantor | Reportable Legal Entities | Term Loan A
Cash Flows from Financing Activities:
Repayment of debt			0
Guarantor | Reportable Legal Entities | Term Loan B
Cash Flows from Financing Activities:
Repayment of debt			0
Guarantor | Reportable Legal Entities | Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Repayment of debt			0
Non-Guarantor | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities			0	0
Cash Flows from Investing Activities:
Capital Expenditures			0	0
Proceeds from Sales of Assets			0	0
(Investments in), net of Distributions from, Subsidiaries			0	0
Net Cash Used in Investing Activities			0	0
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations			0	0
Net Payments on Revolver - MLP				0
Affiliated Credit Facility			0
Distributions to Noncontrolling Interest			0	0
Shares/Units Withheld for Taxes			0	0
Intercompany Contributions/(Distributions)			0	0
Payments Of Distributions To Parent				0
Spin Distribution to CNX Resources			0
Repurchases of Common Stock			0
Debt-Related Financing Fees			0	0
Net Cash Used in Financing Activities			0	0
Non-Guarantor | Reportable Legal Entities | Term Loan A
Cash Flows from Financing Activities:
Repayment of debt			0
Non-Guarantor | Reportable Legal Entities | Term Loan B
Cash Flows from Financing Activities:
Repayment of debt			0
Non-Guarantor | Reportable Legal Entities | Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Repayment of debt			0
Non-Guarantor | CCR Non-Guarantor | Reportable Legal Entities
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities			78,213	40,754
Cash Flows from Investing Activities:
Capital Expenditures			(12,179)	(5,472)
Proceeds from Sales of Assets			165	1,500
(Investments in), net of Distributions from, Subsidiaries			0	0
Net Cash Used in Investing Activities			(12,014)	(3,972)
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations			(1,411)	(52)
Net Payments on Revolver - MLP				(11,000)
Affiliated Credit Facility			(36,083)
Distributions to Noncontrolling Interest			(28,693)	(28,100)
Shares/Units Withheld for Taxes			(899)	(807)
Intercompany Contributions/(Distributions)			0	0
Payments Of Distributions To Parent				0
Spin Distribution to CNX Resources			0
Repurchases of Common Stock			0
Debt-Related Financing Fees			0	0
Net Cash Used in Financing Activities			(67,086)	$ (39,959)
Non-Guarantor | CCR Non-Guarantor | Reportable Legal Entities | Term Loan A
Cash Flows from Financing Activities:
Repayment of debt			0
Non-Guarantor | CCR Non-Guarantor | Reportable Legal Entities | Term Loan B
Cash Flows from Financing Activities:
Repayment of debt			0
Non-Guarantor | CCR Non-Guarantor | Reportable Legal Entities | Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Repayment of debt			$ 0