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Fair Value Measurements - Company's marketable debt securities measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands | Nov. 21, 2020 | Aug. 29, 2020
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total | $ 141,623 | $ 147,239
Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other current assets | 41,279 | 76,118
Other long-term assets | 100,344 | 71,121
Total | 141,623 | 147,239
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other current assets | 41,085 | 75,651
Other long-term assets | 83,666 | 58,792
Total | 124,751 | 134,443
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other current assets | 194 | 467
Other long-term assets | 16,678 | 12,329
Total | $ 16,872 | $ 12,796

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