Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023	Jul. 31, 2023
Accounts Receivable, after Allowance for Credit Loss, Current	$ 138,269	$ 160,393	$ 138,269	$ 160,393	$ 381,067
Deferred Revenue, Current	660,281	619,511	660,281	619,511	$ 572,602
Mountain Revenue Net	999,981	1,013,442	1,172,436	1,215,159
Lodging Revenue Net	77,817	80,577	159,638	158,194
Resort net revenue	1,077,798	1,094,019	1,332,074	1,373,353
Real Estate Revenue	160	7,699	4,449	7,812
Revenues	1,077,958	1,101,718	1,336,523	1,381,165
Contract with Customer, Liability, Revenue Recognized	238,000		294,500
Lift
Mountain Revenue Net	603,459	592,603	648,849	652,143
Ski School
Mountain Revenue Net	126,629	123,451	133,807	132,378
Dining
Mountain Revenue Net	82,060	85,828	100,137	105,270
Lodging Revenue Net	13,609	13,184	31,692	30,013
Retail/Rental
Mountain Revenue Net	136,156	159,932	169,630	200,276
Other
Mountain Revenue Net	51,677	51,628	120,013	125,092
Owned hotel rooms
Lodging Revenue Net	13,583	13,479	38,760	37,044
Managed condominium rooms
Lodging Revenue Net	28,308	31,336	40,311	44,195
Golf
Lodging Revenue Net	0	0	6,471	5,939
Other
Lodging Revenue Net	11,417	11,700	26,540	24,988
Lodging revenue (excluding payroll cost reimbursements) [Member]
Lodging Revenue Net	73,322	75,587	151,684	149,527
Payroll cost reimbursements
Lodging Revenue Net	4,495	4,990	7,954	8,667
Transportation
Lodging Revenue Net	$ 6,405	$ 5,888	$ 7,910	$ 7,348