Document And Entity Information - shares
9 Months Ended
Apr. 30, 2018
Jun. 04, 2018
Document And Entity Information [Abstract]    
Entity Voluntary Filers No  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Apr. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol MTN  
Entity Registrant Name VAIL RESORTS INC  
Entity Central Index Key 0000812011  
Current Fiscal Year End Date --07-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   40,323,276
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes