Summary of Significant Accounting Policies and Basis of Presentation	9 Months Ended
Oct. 04, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Basis of Presentation	Note 1 Summary of Significant Accounting Policies and Basis of Presentation SpartanNash Company was formerly known as Spartan Stores, Inc. which began doing business under the assumed name of “SpartanNash Company,” upon completion of the merger with Nash-Finch Company (“Nash-Finch”) on November 19, 2013. The formal name change to SpartanNash Company was approved and became effective after the annual shareholders meeting on May 28, 2014. The accompanying unaudited Condensed Consolidated Financial Statements (the “financial statements”) include the accounts of SpartanNash Company and its subsidiaries (“SpartanNash”). The operating results of Nash-Finch are included in the financial statements for the year-to-date and third quarter ended October 4, 2014 only. All significant intercompany accounts and transactions have been eliminated. In connection with the merger with Nash-Finch, 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, 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 financial statements, including the notes thereto, financial results for the current third quarter and year-to-date ended October 4, 2014 are for 12 and 40 weeks, respectively. In addition, our Condensed Consolidated Statements of Earnings include an unaudited 12-week period and 40-week period ended October 12, 2013 and the Condensed Consolidated Statements of Cash Flows for the prior year include an unaudited 40-week period ended October 12, 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 only 11 weeks. Fiscal year 2014 will consist of 53 weeks with the fourth quarter comprised of 13 weeks. In the opinion of management, the accompanying financial statements, taken as a whole, contain all adjustments, which are of a normal recurring nature, necessary to present fairly the financial position of SpartanNash as of October 4, 2014, and the results of its operations and cash flows for the interim periods presented. Interim results are not necessarily indicative of results for a full year.

Note 1 Summary of Significant Accounting Policies and Basis of Presentation

SpartanNash Company was formerly known as Spartan Stores, Inc. which began doing business under the assumed name of “SpartanNash Company,” upon completion of the merger with Nash-Finch Company (“Nash-Finch”) on November 19, 2013. The formal name change to SpartanNash Company was approved and became effective after the annual shareholders meeting on May 28, 2014. The accompanying unaudited Condensed Consolidated Financial Statements (the “financial statements”) include the accounts of SpartanNash Company and its subsidiaries (“SpartanNash”). The operating results of Nash-Finch are included in the financial statements for the year-to-date and third quarter ended October 4, 2014 only. All significant intercompany accounts and transactions have been eliminated.

In connection with the merger with Nash-Finch, 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, 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 financial statements, including the notes thereto, financial results for the current third quarter and year-to-date ended October 4, 2014 are for 12 and 40 weeks, respectively. In addition, our Condensed Consolidated Statements of Earnings include an unaudited 12-week period and 40-week period ended October 12, 2013 and the Condensed Consolidated Statements of Cash Flows for the prior year include an unaudited 40-week period ended October 12, 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 only 11 weeks. Fiscal year 2014 will consist of 53 weeks with the fourth quarter comprised of 13 weeks.

In the opinion of management, the accompanying financial statements, taken as a whole, contain all adjustments, which are of a normal recurring nature, necessary to present fairly the financial position of SpartanNash as of October 4, 2014, and the results of its operations and cash flows for the interim periods presented. Interim results are not necessarily indicative of results for a full year.