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Acquisitions (Narrative) (Details) (USD $) | 0 Months Ended | 12 Months Ended |  | 0 Months Ended | 3 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended |  | 12 Months Ended | 1 Months Ended |  | 1 Months Ended |  |  |
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May 29, 2013 | Jul. 31, 2013 | Jul. 31, 2012 | Jul. 31, 2011 | Oct. 25, 2010 | May 29, 2013 Canyons [Member] | Jul. 31, 2013 Canyons [Member] | Jul. 31, 2013 Canyons [Member] | Dec. 17, 2012 Urban Ski Areas [Member] | Jul. 31, 2011 Northstar-At-Tahoe [Member] | Oct. 25, 2010 BCRP Inc [Member] | Jul. 31, 2011 Booth Creek Resort Properties LLC [Member] | Feb. 29, 2012 Skiinfo [Member] | Jan. 30, 2012 Skiinfo [Member] | Apr. 30, 2012 Kirkwood Mountain Resort [Member] | Apr. 11, 2012 Kirkwood Mountain Resort [Member] | Jul. 31, 2013 Talisker Canyons Obligation [Member] | Jul. 31, 2012 Talisker Canyons Obligation [Member]
Contingent Consideration, Key Assumptions for Valuation | The Company estimated the likelihood and timing of achieving the relevant thresholds for the Contingent Consideration payments using discounted cash flow projection valuation models. The Company considered two probability weighed models to calculate projected EBITDA performance; (1) Canyons on a standalone basis, and (2) Canyons plus the inclusion of the ski terrain of Park City Mountain Resort in the Lease. The models considered the following factors: (i) an estimation of the long-term rate of EBITDA growth at 5.5% after the initial five years of operations; (ii) estimated annual capital expenditures between $10.0 million to $15.0 million in the initial five years of operations, subsequently growing at inflation of 2%; (iii) threshold amount increased by an inflation linked index of 2%; and (iv) a discount rate of 15%. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration, at Fair Value |  |  |  |  |  | $ 9,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Purchase Price Allocation, Talisker Canyons Obligation |  | 796,922,000 | 490,765,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 306,320,000 | 0
Capital Leases, Future Minimum Payments Due, Next Twelve Months |  | 25,088,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Effective Date of Acquisition |  |  |  |  |  | May 29, 2013 |  |  | Dec. 17, 2012 | Oct. 25, 2010 |  |  | Feb. 01, 2012 |  | Apr. 12, 2012 |  |  |
Total consideration paid for the acquisition |  |  |  |  | 60,186,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price allocation to goodwill | 77,001,000 |  |  |  | 85,446,000 |  |  |  | 2,000,000 |  |  |  |  | 1,800,000 |  |  |  |
Purchase price allocation to indefinite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 700,000 |  | 800,000 |  |
Purchase price allocation to fixed assets | 5,475,000 |  |  |  |  |  |  |  | 17,800,000 |  |  |  |  | 2,400,000 |  | 16,800,000 |  |
Purchase price allocation to other assets |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  | 2,700,000 |  | 2,500,000 |  |
Purchase price allocation to amortizable intangible assets |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  | 500,000 |  | 1,200,000 |  |
Purchase price allocation to liabilities assumed | 344,741,000 |  |  |  | 58,244,000 |  |  |  | 1,800,000 |  |  |  |  | 2,600,000 |  | 3,100,000 |  |
Ownership interest |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 19,958,000 | 23,479,000 | 62,344,000 |  |  |  |  | 20,000,000 |  |  | 60,200,000 | 5,700,000 |  | 18,200,000 |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  | 50 years |  | 10 years | 4 years 7 months 12 days |  |  | 6 years 8 months 12 days |  | 21 years 6 months 16 days |  |  |
Net operation revenue from acquiree |  |  |  |  |  |  |  | 3,900,000 |  | 67,900,000 |  |  |  |  |  |  |  |
Acquisition related costs |  |  |  |  |  |  |  | 4,400,000 |  | 4,100,000 |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due in Two Years |  | 25,589,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due in Three Years |  | 26,101,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due in Four Years |  | 26,623,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due in Five Years |  | 27,156,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due Thereafter |  | 1,980,443,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due |  | 2,111,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments, Interest Included in Payments |  | (1,804,680,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial Capital Lease Term |  |  |  |  |  | 50 years |  |  |  |  |  |  |  |  |  |  |  |
Optional Lease Renewal Term |  | P10Y |  |  |  | six 50-year renewal options |  |  |  |  |  |  |  |  |  |  |  |
Minimum Capital Lease Payment, Annual |  |  |  |  |  | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to Capital Lease Annual Payments |  |  |  |  |  | inflation linked index of CPI less 1%, with a floor of 2% per annum |  |  |  |  |  |  |  |  |  |  |  |
Talisker Canyons Obligation, Interest Rate |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Description | 42% of the amount by which EBITDA for the resort operations, as calculated under the Lease, exceeds approximately $35 million, with such threshold amount increased by an inflation linked index and a 10% adjustment for any capital improvements or investments made under the Lease by the Company (the "Contingent Consideration") |  |  |  |  | 42% of the amount by which EBITDA for the resort operations, as calculated under the Lease, exceeds approximately $35 million |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration, Accounting Treatment |  |  |  |  |  | threshold amount increased by an inflation linked index and a 10% adjustment for any capital improvements or investments made under the Lease by the Company |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Purchase Price Allocation, Commitment Liabilities |  |  |  |  |  | $ 20,300,000 |  |  |  |  |  |  |  |  |  |  |  |

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