Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018	Jul. 31, 2018
Capitalized Contract Cost, Amortization	$ 5,200		$ 10,600
Deferred revenue	297,874	$ 251,110	297,874	$ 251,110	$ 282,103
Deferred Revenue and Credits, Noncurrent	124,900		124,900		$ 126,500
Mountain Revenue Net	877,898	772,524	1,798,977	1,591,551
Lodging Revenue Net	79,848	68,827	227,997	204,455
Resort net revenue	957,746	841,351	2,026,974	1,796,006
Real Estate Revenue	241	3,140	595	3,910
Revenues	957,987	844,491	2,027,569	1,799,916
Recognition of Deferred Revenue Outstanding as of July 31, 2018	116,900		272,200
Lift
Mountain Revenue Net	526,881	452,723	999,124	860,103
Ski School
Mountain Revenue Net	110,755	101,213	207,271	185,767
Dining
Mountain Revenue Net	78,928	70,678	162,629	142,890
Lodging Revenue Net	11,067	8,660	37,385	32,409
Retail/Rental
Mountain Revenue Net	114,082	104,162	285,860	265,015
Other
Mountain Revenue Net	47,252	43,748	144,093	137,776
Owned hotel rooms
Lodging Revenue Net	12,352	12,518	43,499	43,506
Managed condominium rooms
Lodging Revenue Net	30,671	24,604	69,835	58,133
Transportation
Lodging Revenue Net	8,578	8,164	18,774	18,177
Golf
Lodging Revenue Net	0	0	9,628	8,903
Other
Lodging Revenue Net	13,278	11,074	37,697	32,626
Lodging revenue (excluding payroll cost reimbursements) [Member]
Lodging Revenue Net	75,946	65,020	216,818	193,754
Payroll cost reimbursements
Lodging Revenue Net	$ 3,902	$ 3,807	$ 11,179	$ 10,701

Revenue generated from owned and managed hotels and condominiums, transportation, golf and other activities.

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Revenue mainly derived from the sale of lift tickets and season ski passes, ski school, food and beverage, retail/rental and other revenue associated with mountain operations.

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Real Estate Revenue

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The sum of mountain and lodging segment revenue.

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Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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Total carrying amount of consideration received or receivable as of the balance sheet date representing potential earnings that were not as yet recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such after one year or beyond the normal operating cycle, if longer.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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