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)
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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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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 adjustments of other comprehensive income (loss) attributable to parent.

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Derivative Instruments and Hedging Activities - Narrative (Details) $ in Thousands, $ in Millions	12 Months Ended
	Aug. 31, 2019 USD ($)	Aug. 31, 2019 CAD ($)	Aug. 25, 2018 USD ($)	Jun. 30, 2018 CAD ($) contract	Jan. 31, 2015 CAD ($) contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount reclassified from accumulated other comprehensive loss	$ (33,688)		$ (25,159)
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 (CAD)		$ 9.5		$ 12.1	$ 31.0
Amount reclassified from accumulated other comprehensive loss	200
Reclassification from accumulated other comprehensive loss to revenue	200
Forward Contracts \| Other Long-Term Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair value of the contracts	100
Forward Contracts \| Prepaid Expenses and Other Current Assets
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