Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Jul. 31, 2017
Total Mountain net revenue	$ 148,125	$ 110,767
Lodging	72,089	67,402
Total Resort net revenue	220,214	178,169
Real estate	636	96
Total net revenue	220,850	178,265
Mountain	207,084	168,253
Lodging	67,734	64,080
Resort	274,818	232,333
Real Estate	1,691	1,485
Total segment operating expense	276,509	233,818
Gain on sale of real property	0	6,466
Mountain equity investment income, net	522	832
Total Reported EBITDA	(55,137)	(48,255)
Real estate held for sale and investment	102,697	116,852	$ 103,405
Depreciation and amortization	(48,624)	(40,581)
Change in estimated fair value of contingent consideration (Note 7)	0	(300)
Gain (loss) on disposal of fixed assets, net	567	(550)
Investment income and other, net	383	4,523
Foreign Currency Transaction Gain (Loss), before Tax	(7,346)	0
Interest expense, net	(15,174)	(11,964)
Loss before benefit from income taxes	(125,331)	(97,127)
Benefit from income taxes	93,404	33,509
Net loss	(31,927)	(63,618)
Net loss attributable to noncontrolling interests	3,542	1,031
Net loss attributable to Vail Resorts, Inc.	(28,385)	(62,587)
Lift Tickets [Member]
Total Mountain net revenue	25,468	21,426
Ski School [Member]
Total Mountain net revenue	4,438	3,851
Dining [Member]
Total Mountain net revenue	18,302	13,368
Retail/Rental [Member]
Total Mountain net revenue	45,407	36,479
Other [Member]
Total Mountain net revenue	54,510	35,643
Resort [Member]
Total Reported EBITDA	(54,082)	(53,332)
Mountain [Member]
Total Reported EBITDA	(58,437)	(56,654)
Lodging [Member]
Total Reported EBITDA	4,355	3,322
Real Estate [Member]
Total Reported EBITDA	$ (1,055)	$ 5,077