Acquisitions (Summary Pro Forma Financial Information) (Details) - United States of America, Dollars - Whistler Blackcomb [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jul. 31, 2017	Jul. 31, 2016
Pro Forma Financial Information [Line Items]
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	$ 65,600
Pro forma net revenue	1,929,882	$ 1,835,924
Pro forma net income attributable to Vail Resorts, Inc.	$ 212,475	$ 170,855
Pro forma basic net income per share attributable to Vail Resorts, Inc.	$ 5.31	$ 4.27
Pro forma diluted net income per share attributable to Vail Resorts, Inc.	$ 5.16	$ 4.16

[Line Items] for Pro Forma Financial Information [Table]

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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