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Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	12 Months Ended
	Jan. 03, 2015 Distributor	Dec. 28, 2013 Distributor
Fair Value Disclosures [Line Items]
Number of independent distributors	3,700flo_NumberOfIndependentDistributors	3,400flo_NumberOfIndependentDistributors
Long term debt carrying value	$ 399,304,000us-gaap_SeniorLongTermNotes	$ 399,207,000us-gaap_SeniorLongTermNotes
4.375% Senior Notes
Fair Value Disclosures [Line Items]
Debt Obligations	$ 426,300,000us-gaap_LongTermDebtFairValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Maximum
Fair Value Disclosures [Line Items]
Financing period of territories, years	10 years

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- Definition

Represents the term in years for distributor notes receivable

+ References

No definition available.

+ Details

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- Definition

Represents the approximate number of independent distributors for the company.

+ References

No definition available.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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