Basis of Presentation - Additional Information (Detail)	12 Months Ended
Dec. 29, 2012 Segment
Basis of Presentation [Line Items]
General Information	General. Flowers Foods, Inc. (the "company") is one of the largest producers and marketers of bakery products in the United States. The company consists of two business segments direct-store-delivery ("DSD segment") and warehouse delivery segment ("warehouse segment"). The DSD segment focuses on the production and marketing of bakery products to U.S. customers in the Southeast, Mid-Atlantic,and Southwest as well as select markets in the Northeast, California and Nevada primarily through its DSD system. The warehouse segment produces snack cakes and breads and rolls that are shipped both fresh and frozen to national retail, foodservice, vending, and co-pack customers through their warehouse channels
Number of business segments	2

Additional information about the entity or its reportable segments that may contribute to an understanding of the enterprise.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 8

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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