Marketable Debt Securities - Available-for-Sale Marketable Securities (Detail) - USD ($) $ in Thousands	May 06, 2023	Aug. 27, 2022
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	$ 126,228	$ 115,327
Available-For-Sale Marketable Securities, Gross Unrealized Gains	211	1
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(1,975)	(2,783)
Available-For-Sale Marketable Securities, Fair Value	124,464	112,545
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	32,516	15,293
Available-For-Sale Marketable Securities, Gross Unrealized Gains	73	1
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(197)	(298)
Available-For-Sale Marketable Securities, Fair Value	32,392	14,996
Government bonds
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	64,087	88,903
Available-For-Sale Marketable Securities, Gross Unrealized Gains	116
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(1,334)	(1,963)
Available-For-Sale Marketable Securities, Fair Value	62,869	86,940
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	3,689	4,600
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(215)	(243)
Available-For-Sale Marketable Securities, Fair Value	3,474	4,357
Asset-backed securities and other
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	25,936	6,531
Available-For-Sale Marketable Securities, Gross Unrealized Gains	22
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(229)	(279)
Available-For-Sale Marketable Securities, Fair Value	$ 25,729	$ 6,252

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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