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Derivatives, Investments and Fair Value Measurements - Fair Value Inputs (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands | Aug. 29, 2020 | Aug. 31, 2019
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Domestic equity funds | $ 626 | $ 373
International equity funds | 34 | 101
Fixed income funds | 50 | 155
Interest rate swap contract |  | 90
Total assets at fair value | 710 | 719
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Domestic equity funds | 626 | 288
International equity funds | 34 | 45
Fixed income funds | 50 | 54
Interest rate swap contract |  | 0
Total assets at fair value | 710 | 387
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Domestic equity funds | 0 | 85
International equity funds | 0 | 56
Fixed income funds | 0 | 101
Interest rate swap contract |  | 90
Total assets at fair value | 0 | 332
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Domestic equity funds | 0 | 0
International equity funds | 0 | 0
Fixed income funds | 0 | 0
Interest rate swap contract |  | 0
Total assets at fair value | $ 0 | $ 0

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