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

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Face (par) amount of debt instrument at time of issuance.

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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.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Derivatives and Hedging Activities - Additional Information (Detail) € in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2019 USD ($) Rate	Jul. 31, 2018 USD ($)	Jul. 31, 2017 USD ($)	Jul. 31, 2018 EUR (€)	May 13, 2010 EUR (€)
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange contracts	$ 837	$ 966	$ (225)
Derivative maturity	18 months
Accumulated other comprehensive (loss) income	$ (71,254)	(56,401)	(44,682)
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer	12 months
Reclassification adjustment for (gains) losses included in net income	$ (1,048)	551	486
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	29,389	32,667
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 26,013	27,150
Euro-denominated notes payable in 2017 at a fixed rate of 3.71% [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedges to hedge portions of net investment \| €					€ 30,000
Long-term debt, fixed interest rate percentage \| Rate	3.71%
Euro-denominated notes payable in 2020 at a fixed rate of 4.24% [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedges to hedge portions of net investment \| €					€ 45,000
Long-term debt, fixed interest rate percentage \| Rate	4.24%
Designated as hedging instruments [Member] \| Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment for (gains) losses included in net income	$ (1,048)	552	486
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	(805)	1,017
Designated as hedging instruments [Member] \| EUR denominated unsecured debt [Domain] \| Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange contracts	(2,480)	(612)	1,792
Accumulated other comprehensive (loss) income	12,440			€ 9,961
Not designated as hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ (52)	$ 24	$ (2,508)