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Variable Interest Entities Other Operating Income and Transportation, Gathering and Compression (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Equity in Earnings	$ 2,103	$ 5,363	$ 49,830
CNX Gathering | Other Operating Income
Variable Interest Entity [Line Items]
Equity in Earnings		9,823
CNX Gathering | Transportation, Gathering and Compression
Variable Interest Entity [Line Items]
Equity in Earnings		914
CNXM | Other Operating Income
Variable Interest Entity [Line Items]
Equity in Earnings		38,523
CNXM | Transportation, Gathering and Compression
Variable Interest Entity [Line Items]
Equity in Earnings		$ 136,068

X

- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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