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Derivatives, Investments and Fair Value Measurements (Fair Value Inputs) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Aug. 31, 2019	Aug. 25, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Domestic equity funds	$ 373	$ 1,143
International equity funds	101	139
Fixed income funds	155	223
Interest rate swap contract, asset	90	1,959
Total assets (liabilities) at fair value	719	3,464
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Domestic equity funds	288	1,114
International equity funds	45	120
Fixed income funds	54	132
Total assets (liabilities) at fair value	387	1,366
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Domestic equity funds	85	29
International equity funds	56	19
Fixed income funds	101	91
Interest rate swap contract, asset	90	1,959
Total assets (liabilities) at fair value	$ 332	$ 2,098

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Fair value of asset after deduction of liability.

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Assets that fund deferred compensation consisting of domestic equity funds.

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Assets that fund deferred compensation consisting of fixed income funds.

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Assets that fund deferred compensation consisting of international equity funds.

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