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Acquisitions (Summary Pro Forma Financial Information) (Details) - Whistler Blackcomb [Member] - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Jul. 31, 2017 | Jul. 31, 2016
Pro Forma Financial Information [Line Items] |  |
Development Agreement Date | Feb. 23, 2017 |
United States of America, Dollars |  |
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

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- Definition 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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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