Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.19.3
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 25, 2019
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2019  
Document Transition Report false  
Entity File Number 001-38075  
Entity Registrant Name ANTERO MIDSTREAM CORPORATION  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 61-1748605  
Entity Address, Address Line One 1615 Wynkoop Street  
Entity Address, City or Town Denver  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80202  
City Area Code 303  
Local Phone Number 357-7310  
Title of 12(b) Security Common Stock, par value $0.01  
Trading Symbol AM  
Security Exchange Name NYSE  
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  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   503,419,919
Entity Central Index Key 0001623925  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Amendment Flag false