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Acquisitions (Modesto acquisition) - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended
	Jul. 27, 2013	Dec. 28, 2013
Business Acquisition [Line Items]
Goodwill acquired		$ 9,628us-gaap_GoodwillAcquiredDuringPeriod
Modesto
Business Acquisition [Line Items]
Business acquisition	10,300us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = flo_ModestoMember
Goodwill acquired		4,209us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = flo_ModestoMember
Modesto | DSD Segment
Business Acquisition [Line Items]
Goodwill acquired	$ 4,200us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = flo_ModestoMember / us-gaap_StatementOperatingActivitiesSegmentAxis = flo_DirectStoreDeliveryMember

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

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Balance Type:	debit
Period Type:	duration

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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Balance Type:	credit
Period Type:	duration

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