Acquisitions (Summary Pro Forma Financial Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Oct. 31, 2018	Oct. 31, 2017
Pro Forma Financial Information [Line Items]
Pro forma net revenue	$ 227,529	$ 235,238
Pro forma net loss attributable to Vail Resorts, Inc.	$ (108,620)	$ (35,721)
Pro forma basic net loss per share attributable to Vail Resorts, Inc.	$ (2.68)	$ (0.89)
Pro forma diluted net loss per share attributable to Vail Resorts, Inc.	$ (2.68)	$ (0.89)

[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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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The pro forma diluted 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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