Noncontrolling interest in number of suppliers.

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- 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

+ Details

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- Definition

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.

+ References

No definition available.

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Related Party Transactions - Additional Information (Detail) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2018 USD ($) Supplier	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($)
Related Party Transaction [Line Items]
Rental payments based upon the terms of the lease				$ 1.6
Lease expiration date		Dec. 31, 2022
Joint Venture [Member]
Related Party Transaction [Line Items]
Minority interests in number of suppliers \| Supplier		2
Joint Venture [Member] \| Selling, General and Administrative Expeses [Member]
Related Party Transaction [Line Items]
Impairment charge	$ 1.1	$ 1.1
Canada [Member]
Related Party Transaction [Line Items]
Rental payments based upon the terms of the lease				$ 0.1
Lease expiration date		Oct. 31, 2018
Scenario, Forecast [Member]
Related Party Transaction [Line Items]
Rental payments based upon the terms of the lease			$ 1.6
Scenario, Forecast [Member] \| Canada [Member]
Related Party Transaction [Line Items]
Rental payments based upon the terms of the lease			$ 0.5