Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2020	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Mountain revenue									$ 1,710,443	$ 1,956,201	$ 1,722,922
Lodging revenue									248,414	314,662	284,643
Revenues	$ 77,209	$ 694,087	$ 924,638	$ 267,770	$ 244,006	$ 957,987	$ 849,578	$ 220,004	1,963,704	2,271,575	2,011,553
Income (loss) from operations	(170,046)	218,232	310,733	(135,530)	(120,582)	422,598	301,848	(127,595)	223,389	476,269	408,817
Net income	(157,965)	159,831	217,018	(109,829)	(92,301)	308,530	217,990	(110,726)	109,055	323,493	401,230
Net income (loss) attributable to Vail Resorts, Inc.	$ (153,608)	$ 152,546	$ 206,370	$ (106,475)	$ (89,525)	$ 292,134	$ 206,349	$ (107,795)	$ 98,833	$ 301,163	$ 379,898
Basic net income (loss) per share attributable to Vail Resorts, Inc. (in dollars per share)	$ (3.82)	$ 3.79	$ 5.12	$ (2.64)	$ (2.22)	$ 7.26	$ 5.12	$ (2.66)	$ 2.45	$ 7.46	$ 9.40
Diluted net income (loss) per share attributable to Vail Resorts, Inc. (in dollars per share)	$ (3.82)	$ 3.74	$ 5.04	$ (2.64)	$ (2.22)	$ 7.12	$ 5.02	$ (2.66)	$ 2.42	$ 7.32	$ 9.13