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Supplementary Balance Sheet Information Schedule of Goodwill (Details) - USD ($) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2020 | Jul. 31, 2019 | Jan. 31, 2019
Goodwill [Line Items] |  |  |
Goodwill | $ 1,750,011 | $ 1,608,206 | $ 1,547,084
Goodwill, Acquired During Period | 146,367 |  |
Effects of changes in foreign currency exchange rates | (4,562) |  |
Mountain [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 1,682,112 | 1,540,307 |
Goodwill, Acquired During Period | 146,367 |  |
Effects of changes in foreign currency exchange rates | (4,562) |  |
Lodging [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | $ 67,899 | $ 67,899 |

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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