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Restructuring Charges and Asset Impairment - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jul. 14, 2018	Jul. 15, 2017	Dec. 30, 2017
Restructuring Cost And Reserve [Line Items]
Impairment charges	$ 1,470	$ 521
Fair Value Measurements Nonrecurring [Member] | Significant unobservable inputs (Level 3) [Member]
Restructuring Cost And Reserve [Line Items]
Long-lived assets	1,800		$ 900
Long-lived assets measured fair value on nonrecurring basis	300		400
Impairment charges	$ 1,500		$ 500

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-Section 45
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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

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No definition available.

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