Marketable Debt Securities - Available-for-Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Nov. 23, 2024	Aug. 31, 2024
Schedule of Available-for-sale Securities [Line Items]
Total	$ 121,489	$ 121,792
Available-For-Sale Marketable Securities, Gross Unrealized Gains	424	1,058
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(1,270)	(692)
Available-For-Sale Marketable Securities, Fair Value	120,643	122,158
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Total	34,366	32,355
Available-For-Sale Marketable Securities, Gross Unrealized Gains	57	183
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(243)	(78)
Available-For-Sale Marketable Securities, Fair Value	34,180	32,460
Government bonds
Schedule of Available-for-sale Securities [Line Items]
Total	50,628	50,251
Available-For-Sale Marketable Securities, Gross Unrealized Gains	274	483
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(714)	(493)
Available-For-Sale Marketable Securities, Fair Value	50,188	50,241
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total	22,014	22,859
Available-For-Sale Marketable Securities, Gross Unrealized Gains	59	326
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(279)	(95)
Available-For-Sale Marketable Securities, Fair Value	21,794	23,090
Asset-backed securities and other
Schedule of Available-for-sale Securities [Line Items]
Total	14,481	16,327
Available-For-Sale Marketable Securities, Gross Unrealized Gains	34	66
Available-For-Sale Marketable Securities, Gross Unrealized Losses	(34)	(26)
Available-For-Sale Marketable Securities, Fair Value	$ 14,481	$ 16,367