Supplementary Balance Sheet Information (Changes In Goodwill Amount) (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2018	Jul. 31, 2017
Goodwill, beginning balance	$ 1,519,743	$ 509,037
Acquisition	344	956,739
Goodwill, Translation Adjustments	(44,401)	53,967
Goodwill, ending balance	1,475,686	1,519,743
Mountain [Member]
Goodwill, beginning balance	1,451,844	441,138
Acquisition	344	956,739
Goodwill, Translation Adjustments	(44,401)	53,967
Goodwill, ending balance	1,407,787	1,451,844
Lodging [Member]
Goodwill, beginning balance	67,899	67,899
Acquisition	0	0
Goodwill, Translation Adjustments	0	0
Goodwill, ending balance	$ 67,899	$ 67,899

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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