Document And Entity Information - shares
6 Months Ended
Jan. 31, 2017
Mar. 06, 2017
Document And Entity Information [Abstract]    
Entity Voluntary Filers No  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jan. 31, 2017  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2  
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   39,984,029
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes