Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
Nov. 17, 2018	Nov. 18, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension liability adjustments, taxes		$ 1,161
Reclassified from Accumulated Other Comprehensive Income [Member] \| Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension liability adjustments, taxes		1,161
Unrealized gains (losses) on marketable securities, taxes	$ 1
Reclassified from Accumulated Other Comprehensive Income [Member] \| Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net derivative activities, taxes	$ 120	$ 186

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No definition available.

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- Definition

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e640-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (i-k)
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683

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Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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