Net Income Per Common Share (Summary of Calculation of Basic and Diluted EPS) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,000,000	1,300,000
Net loss attributable to Vail Resorts, Inc.	$ (107,795)	$ (28,385)
Weighted-average Vail Shares outstanding	40,447,000	40,147,000
Weighted-average Exchangeco Shares outstanding	58,000	64,000
Total Weighted-average shares outstanding	40,505,000	40,211,000
Effect of dilutive securities	0	0
Total shares	40,505,000	40,211,000
Basic net loss per share attributable to Vail Resorts, Inc.	$ (2.66)	$ (0.71)
Diluted net loss per share attributable to Vail Resorts, Inc.	$ (2.66)	$ (0.71)