Supplementary Balance Sheet Information (Changes In Goodwill Amount) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Goodwill, beginning balance	$ 378,148	$ 379,500
Acquisition	(78,857)
Effects of changes in foreign currency exchange rates	(113)
Goodwill, ending balance	456,892	379,500
Mountain [Member]
Goodwill, beginning balance	310,249
Acquisition	(78,857)
Effects of changes in foreign currency exchange rates	(113)
Goodwill, ending balance	388,993
Lodging [Member]
Goodwill, beginning balance	67,899
Acquisition	0
Effects of changes in foreign currency exchange rates	0
Goodwill, ending balance	$ 67,899