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Commitments and Contingencies - Additional Information (Detail)	6 Months Ended
	Jul. 14, 2018 USD ($) Retailer Employer
Loss Contingencies [Line Items]
Number of independent retailer for unearned advanced amount | Retailer	1
Percent of unearned advanced amount to total assets	2.00%
Reserve related to advances from retailer	$ 4,900,000
Critical and declining zone fund status	Less than 65 percent
Number of employers contributing to plan | Employer	1
Minimum [Member]
Loss Contingencies [Line Items]
Estimated loss contingency	$ 0
Projected insolvent period based on active to inactive participants ratio	15 years
Maximum [Member]
Loss Contingencies [Line Items]
Estimated loss contingency	$ 25,000,000
Status or critical and declining zone plans	65.00%
Projected insolvent period based on active to inactive participants ratio	20 years

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- Definition

Multiemployer plans projected insolvent period based on active to inactive participants ratio.

+ References

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Percent of unearned advanced amount to net assets.

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- Definition

Reserve related to advances from retailer.

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- Definition

Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12053-110248

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Indicate whether the multiemployer plan is less than 65 percent funded, between 65 and less than 80 percent funded, or at least 80 percent funded. The acceptable values are: (1) "less than 65 percent", (2) "between 65 and less than 80 percent", (3) "at least 80 percent", and (4) "NA". A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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