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Acquisitions (Summary Of Estimate Of Fair Value Of Identifiable Assets Acquired And Liabilities Assumed) (Details) $ / shares in Units, shares in Thousands, $ in Thousands, $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 31, 2016 USD ($) | Jul. 31, 2019 USD ($) | Jul. 31, 2019 AUD ($) | Jul. 31, 2018 USD ($) | Jul. 31, 2017 USD ($) shares | Oct. 17, 2016 USD ($) | Oct. 14, 2016 $ / shares
Business Acquisition [Line Items] |  |  |  |  |  |  |
Indefinite-Lived Trademarks |  | $ 215,905 |  | $ 205,083 |  |  |
Unfavorable lease obligations, net |  | 19,017 |  | 21,839 |  |  |
Goodwill, Acquired During Period |  | 152,049 |  | 344 |  |  |
Falls Creek and Hotham [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Combination, Cash Consideration Transferred |  | 127,400 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  | 6,986 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 54,889 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 5,833 |  |  |  |  |
Goodwill, Acquired During Period |  | 71,538 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  | 11,894 |  |  |  |  |
Business Combination, Consideration Transferred |  |  | $ 178.9 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  | 127,352 |  |  |  |  |
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed |  | 4,600 |  |  |  |  |
Stamp Duty Expense |  | 2,900 |  |  |  |  |
Whistler Blackcomb [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Shares Purchased to Acquire Business | shares |  |  |  |  | 38,500 |  |
Share Exchange Ratio |  |  |  |  |  |  | 0.097294
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares |  |  |  |  | 3,746 |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 5 years |  |  |  |  |  |
Canyons [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Acquisition, Purchase Price Allocation, Land |  | 31,818 |  | 31,818 |  |  |
Business Acquisition, Purchase Price Allocation, Land Improvements |  | 49,228 |  | 49,228 |  |  |
Business Acquisition, Purchase Price Allocation, Buildings and Building Improvements |  | 42,160 |  | 42,660 |  |  |
Business Acquisition, Purchase Price Allocation, Machinery and Equipment |  | 60,384 |  | 60,384 |  |  |
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment Gross (under Capital Lease) |  | 183,590 |  | 184,090 |  |  |
Business Acquisition, Purchase Price Allocation, Accumulated Depreciation |  | (56,040) |  | (46,502) |  |  |
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment Net (under Capital Lease) |  | 127,550 |  | 137,588 |  |  |
Stevens Pass [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Combination, Cash Consideration Transferred |  | 64,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  | 752 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 34,865 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent |  | 886 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 2,680 |  |  |  |  |
Goodwill, Acquired During Period |  | 28,878 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  | 4,029 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  | 64,032 |  |  |  |  |
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed |  | 1,200 |  |  |  |  |
Proceeds from (Repayments of) Debt |  | 70,000 |  |  |  |  |
Triple Peaks, LLC [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Combination, Cash Consideration Transferred |  | 74,100 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  | 5,197 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 159,799 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent |  | 3,093 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 27,360 |  |  |  |  |
Goodwill, Acquired During Period |  | 51,633 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  | 17,989 |  |  |  |  |
Business Combination, Consideration Transferred |  | 229,100 |  |  |  |  |
Business Combination, Consideration Transferred, Other |  | 155,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  | 229,093 |  |  |  |  |
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed |  | 2,800 |  |  |  |  |
Proceeds from (Repayments of) Debt |  | 195,600 |  |  |  |  |
Mountain [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill, Acquired During Period |  | $ 152,049 |  | $ 344 |  |  |
United States of America, Dollars | Whistler Blackcomb [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Indefinite-Lived Trademarks |  |  |  |  |  | $ 139,977 |
Share Price | $ / shares |  |  |  |  |  |  | $ 153.41
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned |  |  |  |  |  | 574,645 |
Business Combination, Cash Consideration Transferred |  |  |  |  | $ 512,558 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables |  |  |  |  |  | 36,820 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  |  | 332,609 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent |  |  |  |  |  | 7,992 |
Business Acquisition, Purchase Price Allocation, Real estate held for sale and investment |  |  |  |  |  | 8,216 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  | 150,681 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  |  | 74,358 |
Business Combination, Consideration Transferred |  |  |  |  | 1,087,203 |  |
Business Combination, Consideration Transferred, Other |  |  |  |  | 4,308 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  |  | 1,272,314 | 1,272,314 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets |  |  |  |  |  | 1,973 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt |  |  |  |  |  | 144,922 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other |  |  |  |  |  | 3,156 |
Finite-Lived Customer Relationships, Gross |  |  |  |  |  | $ 6,596 |
Payments to Acquire Management Contract Rights | $ 4,108 |  |  |  |  |  |
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed |  |  |  |  | 3,200 |  |
United States of America, Dollars | Mountain [Member] | Whistler Blackcomb [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  | 956,459 |  |
Noncontrolling Interest [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquisition of noncontrolling interest (Note 5) |  |  |  |  | $ 180,803 |  |

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