| Cover Page Cover Page | May 27, 2022 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | May 27, 2022 |
| Entity Registrant Name | CNX Resources Corporation |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-14901 |
| Entity Tax Identification Number | 51-0337383 |
| Entity Address, Address Line One | CNX Center |
| Entity Address, Address Line Two | 1000 CONSOL Energy Drive Suite 400 |
| Entity Address, City or Town | Canonsburg |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 15317 |
| City Area Code | 724 |
| Local Phone Number | 485-4000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001070412 |
| Amendment Flag | false |
| Common Stock | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common Stock ($.01 par value) |
| Trading Symbol | CNX |
| Security Exchange Name | NYSE |
| Preferred Share Purchase Rights | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Preferred Share Purchase Rights |
| Security Exchange Name | NYSE |
| No Trading Symbol Flag | true |
