Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2018	Jan. 31, 2017	Jul. 31, 2017
Total Mountain net revenue	$ 670,902	$ 654,099	$ 819,027	$ 764,866
Lodging	63,539	65,884	135,628	133,286
Total Resort net revenue	734,441	719,983	954,655	898,152
Real estate	134	5,215	770	5,311
Total net revenue	734,575	725,198	955,425	903,463
Mountain	365,605	355,239	572,689	523,492
Lodging	59,871	59,683	127,605	123,763
Resort	425,476	414,922	700,294	647,255
Real Estate	1,207	5,841	2,898	7,326
Total segment operating expense	426,683	420,763	703,192	654,581
Gain on sale of real property	515	0	515	6,466
Mountain equity investment (loss) income, net	(35)	157	487	989
Total Reported EBITDA	308,372	304,592	253,235	256,337
Real estate held for sale and investment	103,212	112,633	103,212	112,633	$ 103,405
Depreciation and amortization	(51,404)	(49,626)	(100,028)	(90,207)
Change in estimated fair value of contingent consideration (Note 7)	0	(300)	0	(600)
Gain (loss) on disposal of fixed assets and other, net	538	(2,231)	1,105	(2,781)
Investment income and other, net	397	1,148	780	5,671
Foreign Currency Transaction Gain (Loss), before Tax	10,337	5,166	2,991	5,166
Interest expense, net	(15,973)	(14,214)	(31,147)	(26,178)
Income before (provision) benefit from income taxes	252,267	244,535	126,936	147,408
(Provision) benefit from income taxes (Note 2)	(3,594)	(84,807)	89,810	(51,298)
Net income	248,673	159,728	216,746	96,110
Net income attributable to noncontrolling interests	(12,982)	(10,549)	(9,440)	(9,518)
Net income attributable to Vail Resorts, Inc.	235,691	149,179	207,306	86,592
Lift Tickets [Member]
Total Mountain net revenue	381,912	358,251	407,380	379,677
Ski School [Member]
Total Mountain net revenue	80,116	78,119	84,554	81,970
Dining [Member]
Total Mountain net revenue	53,910	54,366	72,212	67,734
Retail/Rental [Member]
Total Mountain net revenue	115,446	123,233	160,853	159,712
Other [Member]
Total Mountain net revenue	39,518	40,130	94,028	75,773
Resort [Member]
Total Reported EBITDA	308,930	305,218	254,848	251,886
Mountain [Member]
Total Reported EBITDA	305,262	299,017	246,825	242,363
Lodging [Member]
Total Reported EBITDA	3,668	6,201	8,023	9,523
Real Estate [Member]
Total Reported EBITDA	$ (558)	$ (626)	$ (1,613)	$ 4,451