| Component: (Network and Table) | |
|---|---|
| Network | 2422402 - Disclosure - Inventories (Details) (http://www.cnxlp.com/role/InventoriesDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001637558 (http://www.sec.gov/CIK) |
| Inventory Disclosure [Abstract] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
Inventory Disclosure [Abstract] | ||
Coal | ||
Supplies | ||
Total Inventories | 11,491,000 | 12,238,000 |