Supplementary Balance Sheet Information (Changes In Goodwill Amount) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Goodwill, beginning balance	$ 378,148us-gaap_Goodwill	$ 378,220us-gaap_Goodwill
Acquisition	(92,431)us-gaap_GoodwillAcquiredDuringPeriod
Effects of changes in foreign currency exchange rates	(293)
Goodwill, ending balance	470,286us-gaap_Goodwill	378,220us-gaap_Goodwill
Mountain [Member]
Goodwill, beginning balance	310,249
Effects of changes in foreign currency exchange rates	(293)
Goodwill, ending balance	402,387
Lodging [Member]
Goodwill, beginning balance	67,899
Acquisition	0
Effects of changes in foreign currency exchange rates	0
Goodwill, ending balance	67,899
PCMR [Member] \| Mountain [Member]
Acquisition	$ (92,431)

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/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments 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://www.xbrl.org/2003/role/presentationRef

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