Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jul. 31, 2020	Jul. 31, 2019
Contingent Consideration	$ 17,000	$ 23,500	$ 17,800	$ 27,200
Payments for Rent	(2,602)	(6,436)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 1,802	2,736
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 $3.1 million to $4.2 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 10.49%, volatility of 17.0% and future period Park City EBITDA, which are unobservable inputs and thus are considered Level 3 inputs.
Money Market	$ 204,070	3,052	203,158
Fair Value Hedge Liabilities	16,548	4,563	22,510
Level 2 [Member]
Fair Value Hedge Liabilities	16,548	4,563	22,510
Fair Value, Inputs, Level 3 [Member]
Contingent Consideration	17,000	23,500	17,800
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Money Market		3,052
Commercial Paper	204,070		203,158
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	8,734	7,717	8,208
Certificates of Deposit [Member] | Level 2 [Member]
Commercial Paper	$ 8,734	$ 7,717	$ 8,208