Summary of Significant Accounting Policies (Details 1) (USD $) In Thousands	12 Months Ended
Jul. 31, 2011	Jul. 31, 2010
Changes in Carrying Amount of Goodwill
Goodwill, Beginning Balance	$ 768,600	$ 751,173
Current year acquisitions	4,792	20,266
Current year divestitures	(12,076)
Translation adjustments and other	39,027	(2,839)
Goodwill, Ending Balance	800,343	768,600
Americas [Member]
Changes in Carrying Amount of Goodwill
Goodwill, Beginning Balance	425,018	410,135
Current year acquisitions		13,370
Current year divestitures	(3,696)
Translation adjustments and other	4,256	1,513
Goodwill, Ending Balance	425,578	425,018
Europe [Member]
Changes in Carrying Amount of Goodwill
Goodwill, Beginning Balance	163,189	166,251
Current year acquisitions		6,896
Current year divestitures	(8,380)
Translation adjustments and other	16,429	(9,958)
Goodwill, Ending Balance	171,238	163,189
Asia-Pacific [Member]
Changes in Carrying Amount of Goodwill
Goodwill, Beginning Balance	180,393	174,787
Current year acquisitions	4,792
Translation adjustments and other	18,342	5,606
Goodwill, Ending Balance	$ 203,527	$ 180,393

Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e(1)

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ Details

Name:	us-gaap_GoodwillRollForward
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects net changes to the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Write-off of the carrying amount of goodwill associated with all or a portion of a reporting unit that is sold in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e(3)

+ Details

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Balance Type:	credit
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