Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
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-Section 13
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Fair value of all liability derivatives designated as cash flow hedging instruments.

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Contractual rate at which a foreign currency can be purchased or sold.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of foreign currency exchange rate derivatives held by the entity at the reporting date.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Derivative Instruments and Hedging Activities - Narrative (Details) $ in Thousands, $ in Millions	12 Months Ended
	Aug. 25, 2018 USD ($)	Aug. 26, 2017 USD ($)	Aug. 27, 2016 USD ($)	Aug. 25, 2018 CAD ($)	Jun. 30, 2018 CAD ($) contract	Jan. 31, 2015 CAD ($) contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) in accumulated other comprehensive loss	$ (25,159)	$ (21,518)
Amount reclassified from accumulated other comprehensive loss	46	$ 180	$ 215
Canadian Dollars
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Average exchange rate					0.7814	0.7825
Forward Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional value				$ 14.9	$ 12.1	$ 31.0
Gain (loss) in accumulated other comprehensive loss	100
Amount reclassified from accumulated other comprehensive loss	0
Forward Contracts \| Other Long-Term Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of the contracts	100
Forward Contracts \| Prepaid Expenses
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of the contracts	$ 100
Forward Contracts \| Canadian Dollars
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivatives entered into to exchange Canadian dollars for U.S. dollars \| contract					12	16