Fair Value Measurements - Company's marketable debt securities measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	May 08, 2021	Aug. 29, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	$ 126,451	$ 147,239
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	50,579	76,118
Other long-term assets	75,872	71,121
Total	126,451	147,239
Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets	50,579	75,651
Other long-term assets	58,015	58,792
Total	108,594	134,443
Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other current assets		467
Other long-term assets	17,857	12,329
Total	$ 17,857	$ 12,796