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Earnings Per Share - Narrative (Details) - $ / shares	Sep. 28, 2020	Apr. 30, 2020
Convertible Debt | Convertible Senior Notes Due 2026
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Conversion price (in usd per share)		$ 12.84
CNXM, CNX Midstream GP LLC, CNX Resources Holding LLC Merger Agreement
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Entity shares issued per acquiree share (in shares)	0.88

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870

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