Significant Accounting Policies - Basis of Consolidation (Details) - CNXM	Sep. 28, 2020
Public Unitholders
Business Acquisition [Line Items]
Ownership percentage in equity method investment	46.90%
CNX
Business Acquisition [Line Items]
Ownership percentage in equity method investment	53.10%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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