Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Mountain revenue									$ 1,956,201	$ 1,722,922	$ 1,611,786
Lodging revenue									314,662	284,643	278,514
Revenues	$ 244,006	$ 957,987	$ 849,578	$ 220,004	$ 211,637	$ 844,491	$ 734,575	$ 220,850	2,271,575	2,011,553	1,907,218
Income (loss) from operations	(120,582)	422,598	301,848	(127,595)	(112,986)	367,978	257,541	(103,716)	476,269	408,817	379,256
Net income	(92,301)	308,530	217,990	(110,726)	(87,791)	272,275	248,673	(31,927)	323,493	401,230	231,718
Net income (loss) attributable to Vail Resorts, Inc.	$ (89,525)	$ 292,134	$ 206,349	$ (107,795)	$ (83,660)	$ 256,252	$ 235,691	$ (28,385)	$ 301,163	$ 379,898	$ 210,553
Basic net income (loss) per share attributable to Vail Resorts, Inc. (in dollars per share)	$ (2.22)	$ 7.26	$ 5.12	$ (2.66)	$ (2.07)	$ 6.34	$ 5.82	$ (0.71)	$ 7.46	$ 9.40	$ 5.36
Diluted net income (loss) per share attributable to Vail Resorts, Inc. (in dollars per share)	$ (2.22)	$ 7.12	$ 5.02	$ (2.66)	$ (2.07)	$ 6.17	$ 5.67	$ (0.71)	$ 7.32	$ 9.13	$ 5.22