Restructuring Charges, Net - Changes In Restructuring Liability (Detail) $ in Thousands	3 Months Ended
Jul. 31, 2020 USD ($)
Restructuring And Related Activities [Abstract]
Restructuring Liability, Beginning balance	$ 34,153
Restructuring charges, net	27,487
Reductions for cash payments	(31,347)
Non-cash payments	(3,968)
Exchange rate fluctuations	2,207
Restructuring Liability, Ending balance	$ 28,532

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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