Income Taxes - Schedule of Unrecognized Tax Benefit Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Unrecognized Tax Benefits:
Beginning balance	$ 15,294	$ 21,133	$ 17,849
Additions based on tax positions related to the current year	2,500	3,093	5,862
Additions for tax positions of prior years (1)	1,124	1,290	0
Reductions for tax positions of prior years	(62)	(9,369)	(280)
Lapse of statute of limitations	(663)	(344)	(805)
Settlements with tax authorities	(118)	(456)	(221)
Cumulative Translation Adjustments and other	287	(53)	(1,272)
Ending balance	$ 18,362	$ 15,294	$ 21,133

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

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from foreign currency translation.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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