Amount outstanding forward foreign exchange contracts including certain specific contracts.

No definition available.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

+ References

No definition available.

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- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994

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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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- Definition

Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

+ References

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
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Derivatives and Hedging Activities - Additional Information (Detail) $ in Thousands, £ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)	Jul. 31, 2018 USD ($)	May 13, 2010 GBP (£)
Derivatives, Fair Value [Line Items]
Derivative Maturities			18 months
Derivative, Notional Amount	$ 17,010		$ 17,010		$ 32,667
Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	887	$ (856)	887	$ (856)
Cash Flow Hedge Gain (Loss) Reclassified to Earnings	240	(158)	287	(182)
Total Outstanding Forward Foreign Exchange Contracts	13,623		13,623
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ (10)	$ (2)	$ (43)	$ 20
Senior Unsecured Notes [Member]
Derivatives, Fair Value [Line Items]
Derivative, Amount of Hedged Item \| £						£ 45