Fair Value Measurements (Details) $ in Thousands, CAD in Millions	3 Months Ended
	Oct. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)	Oct. 31, 2017 CAD	Jul. 31, 2017 USD ($)	Jul. 31, 2016 USD ($)
Contingent Consideration	$ 23,754	$ 11,400		$ 27,400	$ 11,100
Payments for Rent	(3,646)	0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 0	300
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.
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
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.
Derivative, Maturity Date	Sep. 01, 2020
Money Market	$ 3,010	3,001		3,008
Interest Rate Swap		1,990
Level 2 [Member]
Interest Rate Swap		1,990		236
Fair Value, Inputs, Level 3 [Member]
Contingent Consideration	23,754	11,400		27,400
Money Market Funds [Member] | Level 1 [Member]
Money Market	3,010	3,001		3,008
Commercial Paper [Member]
Commercial Paper	2,401	2,401		2,401
Commercial Paper [Member] | Level 2 [Member]
Commercial Paper	2,401	2,401		2,401
Certificates of Deposit [Member]
Commercial Paper	2,406	2,403		2,403
Interest Rate Swap				236
Certificates of Deposit [Member] | Level 2 [Member]
Commercial Paper	$ 2,406	$ 2,403		$ 2,403
Canada, Dollars
Interest Rate Swap (in millions) | CAD			CAD 125.0