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Fair Value Measurements (Details)
$ in Thousands, CAD in Millions
 12 Months Ended
Jul. 31, 2017
USD ($)
Jul. 31, 2016
USD ($)
Jul. 31, 2017
CAD
Jul. 31, 2015
USD ($)
Derivative, Maturity Date Sep. 01, 2020      
Business Combination, Contingent Consideration Arrangements, Description 42% of the amount by which EBITDA for the Park City resort operations, as calculated under the lease, exceeds approximately $35 million, as established at the transaction date, with such threshold amount subsequently increased annually by an inflation linked index and a 10% adjustment for any capital improvements or investments made under the lease by the Company.      
Contingent Consideration, Key Assumptions for Valuation The estimated fair value of Contingent Consideration includes the future period resort operations of Park City in the calculation of EBITDA on which participating contingent payments are made, which is determined on the basis of estimated subsequent year performance, escalated by an assumed growth factor. The Company estimated the fair value of the Contingent Consideration payments using an option pricing valuation model. Key assumptions included a discount rate of 10.2%, volatility of 16.0% and future period Park City EBITDA and capital expenditures, which are unobservable inputs and thus are considered Level 3 inputs.      
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Adverse Change in Other Assumption, Description The Company prepared a sensitivity analysis to evaluate the effect that changes on certain key assumptions would have on the estimated fair value of the Contingent Consideration. A change in the discount rate of 100 basis points or a 5% change in estimated subsequent year performance would result in a change in the estimated fair value within the range of approximately $4.5 million to $6.5 million.      
Interest Rate Cash Flow Hedge Liability at Fair Value $ 236      
Liabilities, Fair Value Disclosure 27,400 $ 11,100   $ 6,900
Change in Fair Value of Contingent Consideration 16,300 4,200    
Level 3 [Member]        
Liabilities, Fair Value Disclosure 27,400 11,100    
Money Market Funds [Member]        
Cash and Cash Equivalents, Fair Value Disclosure 3,008      
Money Market Funds [Member] | Level 1 [Member]        
Money Market Funds, at Carrying Value 3,008      
Commercial Paper [Member]        
Cash and Cash Equivalents, Fair Value Disclosure 2,401 2,401    
Commercial Paper [Member] | Level 2 [Member]        
Cash and Cash Equivalents, Fair Value Disclosure 2,401 2,401    
Certificates of Deposit [Member]        
Cash and Cash Equivalents, Fair Value Disclosure 2,405 2,403    
Certificates of Deposit [Member] | Level 2 [Member]        
Cash and Cash Equivalents, Fair Value Disclosure 2,405 $ 2,403    
Canada, Dollars        
Derivative, Notional Amount | CAD     CAD 125.0  
United States of America, Dollars        
Derivative, Notional Amount $ 100,300