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Merger and Acquisitions - Pro Forma Effect on Operating Results (Detail) - USD ($) $ in Thousands | 3 Months Ended | 4 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 02, 2016 | Oct. 10, 2015 | Jul. 18, 2015 | Jan. 03, 2015 | Oct. 04, 2014 | Jul. 12, 2014 | Apr. 25, 2015 | Apr. 19, 2014 | Dec. 28, 2013 | Jan. 02, 2016 | Jan. 03, 2015
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 1,768,025 | $ 1,775,401 | $ 1,795,864 | $ 1,962,589 | $ 1,809,571 | $ 1,810,175 | $ 2,312,683 | $ 2,333,727 | $ 2,597,230 | $ 7,651,973 | $ 7,916,062
Net earnings |  | $ 16,729 | $ 15,393 | $ 20,261 | $ 11,871 | $ 17,096 | $ 17,319 | $ 10,327 | $ 12,310 | 741 | $ 62,710 | $ 58,596
Nash-Finch Company [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net sales | [1] |  |  |  |  |  |  |  |  | 5,896,555 |  |
Net earnings | [1] |  |  |  |  |  |  |  |  | 24,073 |  |
Net sales | [2] |  |  |  |  |  |  |  |  | 563,185 |  |
Net earnings | [2] |  |  |  |  |  |  |  |  | $ 769 |  |
[1] | Pro forma information is not necessarily indicative of the results that would have been obtained if the acquisition had occurred at the beginning of the period presented or that may be obtained in the future.
[2] | Included in net earnings above are the following after-tax charges: merger and integration expenses of $2.0 million; asset impairment and restructuring charges of $0.4 million; and a loss on debt extinguishment of $2.6 million. Non-recurring merger transaction and integration costs of $26.5 million were incurred during the 39-week period ended December 28, 2013, of which $21.0 million was included in selling, general and administrative expenses and $5.5 million was included in loss on debt extinguishment. Costs associated with the new revolving credit agreement of $9.4 million were capitalized and included in “Other assets, net” in the consolidated balance sheets.

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