Summary of Significant Accounting Policies (Allocation Of Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Pre-tax stock-based compensation expense	$ 15,753	$ 14,224	$ 12,349
Less: benefit for income taxes	6,026	5,435	4,709
Net stock-based compensation expense	9,727	8,789	7,640
Mountain Operating Expense [Member]
Pre-tax stock-based compensation expense	11,841	10,292	9,007
Lodging Operating Expense [Member]
Pre-tax stock-based compensation expense	2,621	2,203	1,917
Real Estate Operating Expense [Member]
Pre-tax stock-based compensation expense	$ 1,291	$ 1,729	$ 1,425