Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	8 Months Ended
May 05, 2018	May 06, 2017	May 05, 2018	May 06, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension liability adjustments, taxes	$ 631	$ 1,248	$ 1,909	$ 3,883
Unrealized gains (losses) on marketable securities, taxes	154	(11)	463	135
Net derivative activities, taxes	(119)	(188)	(356)	(555)
Reclassified from Accumulated Other Comprehensive Income [Member] \| Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension liability adjustments, taxes	631	1,248	1,909	3,883
Reclassified from Accumulated Other Comprehensive Income [Member] \| Net Unrealized Gain (Loss) on Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) on marketable securities, taxes	3	6	20	20
Reclassified from Accumulated Other Comprehensive Income [Member] \| Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net derivative activities, taxes	$ 119	$ 188	$ 356	$ 555

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No definition available.

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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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