Marketable Debt Securities - Available-for-Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Nov. 19, 2022	Aug. 27, 2022
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	$ 122,423	$ 115,327
Available-For-Sale Marketable Securities, Gross Unrealized Gains		1
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(3,637)	(2,783)
Available-For-Sale Marketable Securities, Fair Value	118,786	112,545
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	13,467	15,293
Available-For-Sale Marketable Securities, Gross Unrealized Gains		1
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(388)	(298)
Available-For-Sale Marketable Securities, Fair Value	13,079	14,996
Government bonds
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	84,854	88,903
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(2,613)	(1,963)
Available-For-Sale Marketable Securities, Fair Value	82,241	86,940
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	4,257	4,600
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(295)	(243)
Available-For-Sale Marketable Securities, Fair Value	3,962	4,357
Asset-backed securities and other
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Marketable Securities, Amortized Cost Basis	19,845	6,531
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(341)	(279)
Available-For-Sale Marketable Securities, Fair Value	$ 19,504	$ 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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