Net Income Per Common Share (Summary of Calculation of Basic and Diluted EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2018	Jan. 31, 2017
Net income attributable to Vail Resorts, Inc.	$ 235,691	$ 149,179	$ 207,306	$ 86,592
Weighted-average Vail Shares outstanding	40,414	39,888	40,281	38,327
Weighted-average Exchangeco Shares outstanding	61	162	62	115
Total Weighted-average shares outstanding	40,475	40,050	40,343	38,442
Effect of dilutive securities	1,119	1,057	1,346	1,087
Total shares	41,594	41,107	41,689	39,529
Basic net income per share attributable to Vail Resorts, Inc.	$ 5.82	$ 3.72	$ 5.14	$ 2.25
Diluted net income per share attributable to Vail Resorts, Inc.	$ 5.67	$ 3.63	$ 4.97	$ 2.19