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Revenue Recognition - Summary of Contract Balances (Detail) - USD ($) $ in Thousands		9 Months Ended
		May 31, 2021	Aug. 31, 2020
Contract With Customer Asset And Liability [Line Items]
Contract liabilities	[1]	$ 36,867	$ 27,009
Change in contract liabilities	[1]	9,858
Accounts Receivable, Net
Contract With Customer Asset And Liability [Line Items]
Contract assets		18,999	430
Change in contract assets		18,569
Inventories
Contract With Customer Asset And Liability [Line Items]
Contract assets		9,728	$ 7,081
Change in contract assets		$ 2,647
[1] Contract liabilities balance includes deferred revenue within the scope of Topic 606.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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