Restructuring and Asset Impairment - Schedule of Restructuring and Asset Impairment (Detail) (USD $) In Thousands, unless otherwise specified	4 Months Ended
Apr. 25, 2015	Apr. 19, 2014
Restructuring Cost And Reserve [Line Items]
Asset impairment charges	$ 2,353us-gaap_AssetImpairmentCharges	$ 906us-gaap_AssetImpairmentCharges
Gains on sales of assets related to closed facilities	(1,540)us-gaap_GainLossOnDispositionOfAssets1	(1,318)us-gaap_GainLossOnDispositionOfAssets1
Provision for severance	304us-gaap_SeveranceCosts1	196us-gaap_SeveranceCosts1
Other costs associated with distribution center and store closings	1,493us-gaap_OtherRestructuringCosts	724us-gaap_OtherRestructuringCosts
Changes in estimates	(287)	(399)
Lease termination adjustment	(1,745)
Restructuring and asset impairment	7,338	127
Business Restructuring Reserves [Member]
Restructuring Cost And Reserve [Line Items]
Provision for leases and related ancillary costs, net of sublease income, related to store closings	$ 6,760	$ 18

Provision for lease and related ancillary costs.

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Restructuring reserve change in estimates.

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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.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

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Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

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The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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