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Supplementary Balance Sheet Information (Changes In Goodwill Amount) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Goodwill, beginning balance	$ 1,709,020	$ 1,608,206
Acquisition		135,987
Goodwill, Impairment Loss		(25,688)
Goodwill, Translation Adjustments	72,027	(9,485)
Goodwill, ending balance	1,781,047	1,709,020
Mountain [Member]
Goodwill, beginning balance	1,666,809	1,540,307
Acquisition		135,987
Goodwill, Impairment Loss		0
Goodwill, Translation Adjustments	72,027	(9,485)
Goodwill, ending balance	1,738,836	1,666,809
Lodging [Member]
Goodwill, beginning balance	42,211	67,899
Acquisition		0
Goodwill, Impairment Loss		(25,688)
Goodwill, Translation Adjustments	0	0
Goodwill, ending balance	$ 42,211	$ 42,211

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- Definition

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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- Definition

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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