Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022	Jul. 31, 2022
Accounts Receivable, after Allowance for Credit Loss, Current	$ 351,597	$ 267,111	$ 351,597	$ 267,111	$ 383,425
Deferred Revenue, Current	448,321	326,008	448,321	326,008	$ 511,306
Mountain Revenue Net	1,144,730	1,084,635	2,359,889	2,028,310
Lodging Revenue Net	93,546	91,901	251,740	229,842
Resort net revenue	1,238,276	1,176,536	2,611,629	2,258,152
Real Estate Revenue	155	129	7,967	624
Revenues	1,238,431	1,176,665	2,619,596	2,258,776
Contract with Customer, Liability, Revenue Recognized	201,500		476,100
Lift
Mountain Revenue Net	710,052	714,708	1,362,195	1,250,619
Ski School
Mountain Revenue Net	145,134	120,897	277,512	214,442
Dining
Mountain Revenue Net	101,683	79,826	206,953	146,395
Lodging Revenue Net	15,422	14,646	45,435	33,296
Retail/Rental
Mountain Revenue Net	135,008	126,497	335,284	281,704
Other
Mountain Revenue Net	52,853	42,707	177,945	135,150
Owned hotel rooms
Lodging Revenue Net	15,091	18,295	52,135	53,362
Managed condominium rooms
Lodging Revenue Net	38,409	37,494	82,604	83,703
Golf
Lodging Revenue Net	0	0	6,072	5,138
Other
Lodging Revenue Net	12,380	9,925	37,235	31,641
Lodging revenue (excluding payroll cost reimbursements) [Member]
Lodging Revenue Net	88,226	87,222	237,753	221,561
Payroll cost reimbursements
Lodging Revenue Net	5,320	4,679	13,987	8,281
Transportation
Lodging Revenue Net	$ 6,924	$ 6,862	$ 14,272	$ 14,421