XML 27 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2021
Jan. 20, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Document Transition Report false    
Entity File Number 001-14901    
Entity Registrant Name CNX Resources Corporation    
Entity Incorporation, State or Country Code DE    
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 15317-6506    
City Area Code 724    
Local Phone Number 485-4000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 2,246,902,938
Entity Common Stock, Shares Outstanding   202,489,683  
Documents Incorporated by Reference Portions of CNX's Proxy Statement for the Annual Meeting of Shareholders to be held on May 6, 2021, are incorporated by reference in Items 10, 11, 12, 13 and 14 of Part III.    
Amendment Flag false    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001070412    
Current Fiscal Year End Date --12-31    
Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Common Stock ($.01 par value)    
Trading Symbol CNX    
Security Exchange Name NYSE    
Preferred Share Purchase Rights      
Document Information [Line Items]      
Title of 12(b) Security Preferred Share Purchase Rights    
No Trading Symbol Flag true    
Security Exchange Name NYSE