Summary of Significant Accounting Policies and Basis of Presentation (Policies)	4 Months Ended
	Apr. 19, 2014
Accounting Policies [Abstract]
Fiscal Year	In connection with the merger, effective November 19, 2013, the Board of Directors of SpartanNash determined to change the Company’s fiscal year end from the last Saturday in March to the Saturday nearest to December 31, effective beginning with the transition period ended December 28, 2013. Beginning with fiscal 2014 the Company’s interim quarters consist of 12 weeks except for the first quarter which consists of 16 weeks. As a result of this change, in these condensed consolidated financial statements, including the notes thereto, financial results for the current quarter ended April 19, 2014 are for 16 weeks. In addition, our Consolidated Statements of Earnings and Consolidated Statements of Cash Flows for the prior year include an unaudited 16-week period ended April 27, 2013. The prior year financial statements were recast to the new fiscal year format based upon the original fiscal period end dates. As a result, the period end date for the prior year financial statements differs with the current year by one week and the full prior fiscal year will consist of 51 weeks with the fourth quarter comprised of 11 weeks.
Recently Issued Accounting Standards	Recently Issued Accounting Standards On April 10, 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-08 “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU No. 2014-08 changes the criteria for reporting discontinued operations and modifies related disclosure requirements. The new guidance is effective on a prospective basis for fiscal years beginning after December 15, 2014, and interim periods within annual periods beginning on or after December 15, 2015. The Company is currently assessing the potential impact of ASU No. 2014-08 on its financial statements.
Business Combinations	The merger was accounted for under the provisions of FASB Accounting Standards Codification Topic 805, “Business Combinations.” The related assets acquired and liabilities assumed were recorded at estimated fair values on the acquisition date. The valuation process is not complete and the final determination of the fair values may result in further adjustments to the values preliminarily estimated on the acquisition date.

Disclosure of accounting policy for completed business combinations (purchase method, acquisition method or combination of entities under common control). This accounting policy may include a general discussion of the purchase method or acquisition method of accounting (including for example, the treatment accorded contingent consideration, the identification of assets and liabilities, the purchase price allocation process, how the fair values of acquired assets and liabilities are determined) and the entity's specific application thereof. An entity that acquires another entity in a leveraged buyout transaction generally discloses the accounting policy followed by the acquiring entity in determining the basis used to value its interest in the acquired entity, and the rationale for that accounting policy.

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- Definition

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

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