Supplementary Balance Sheet Information Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
Oct. 31, 2021	Jul. 31, 2021	Oct. 31, 2020
Goodwill [Line Items]
Goodwill	$ 1,790,531	$ 1,781,047	$ 1,711,870
Mountain [Member]
Goodwill [Line Items]
Goodwill	1,748,320	1,738,836
Effects of changes in foreign currency exchange rates	9,484
Lodging [Member]
Goodwill [Line Items]
Goodwill	42,211	$ 42,211
Effects of changes in foreign currency exchange rates	$ 0

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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