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Fair Value of Stock Consideration (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Jan. 03, 2015
Fair Value Measurements [Line Items] |
Value of Flowers shares issued | $ 50,000 flo_BusinessAcquisitionEquityInterestsIssuedOrIssuableBasisForDeterminingValue
Implied fair value of restricted shares | 45,887 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
Fiscal Years 2012 |
Fair Value Measurements [Line Items] |
Value of Flowers shares issued | 25,000 flo_BusinessAcquisitionEquityInterestsIssuedOrIssuableBasisForDeterminingValue / flo_DivisionOfStockIssuedAxis = flo_FiscalYearsTwentyTwelveMember
Implied fair value of restricted shares | 23,626 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / flo_DivisionOfStockIssuedAxis = flo_FiscalYearsTwentyTwelveMember
Exercise price (per share) | $ 13.65 us-gaap_FairValueAssumptionsExercisePrice / flo_DivisionOfStockIssuedAxis = flo_FiscalYearsTwentyTwelveMember
Expected term (yrs) | 4 months 13 days
Volatility | 25.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearsTwentyTwelveMember
Risk-free rate | 0.10%us-gaap_FairValueAssumptionsRiskFreeInterestRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearsTwentyTwelveMember
Dividend yield | 3.00%us-gaap_FairValueAssumptionsExpectedDividendRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearsTwentyTwelveMember
Fiscal Year 2013 |
Fair Value Measurements [Line Items] |
Value of Flowers shares issued | 10,000 flo_BusinessAcquisitionEquityInterestsIssuedOrIssuableBasisForDeterminingValue / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyThirteenMember
Implied fair value of restricted shares | 9,154 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyThirteenMember
Exercise price (per share) | $ 13.65 us-gaap_FairValueAssumptionsExercisePrice / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyThirteenMember
Expected term (yrs) | 1 year
Volatility | 25.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyThirteenMember
Risk-free rate | 0.20%us-gaap_FairValueAssumptionsRiskFreeInterestRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyThirteenMember
Dividend yield | 3.00%us-gaap_FairValueAssumptionsExpectedDividendRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyThirteenMember
Fiscal Year 2014 |
Fair Value Measurements [Line Items] |
Value of Flowers shares issued | 5,000 flo_BusinessAcquisitionEquityInterestsIssuedOrIssuableBasisForDeterminingValue / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFourteenMember
Implied fair value of restricted shares | 4,447 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFourteenMember
Exercise price (per share) | $ 13.65 us-gaap_FairValueAssumptionsExercisePrice / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFourteenMember
Expected term (yrs) | 2 years
Volatility | 25.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFourteenMember
Risk-free rate | 0.20%us-gaap_FairValueAssumptionsRiskFreeInterestRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFourteenMember
Dividend yield | 3.00%us-gaap_FairValueAssumptionsExpectedDividendRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFourteenMember
Fiscal Year 2015 |
Fair Value Measurements [Line Items] |
Value of Flowers shares issued | 5,000 flo_BusinessAcquisitionEquityInterestsIssuedOrIssuableBasisForDeterminingValue / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFifteenMember
Implied fair value of restricted shares | 4,363 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFifteenMember
Exercise price (per share) | $ 13.65 us-gaap_FairValueAssumptionsExercisePrice / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFifteenMember
Expected term (yrs) | 3 years
Volatility | 25.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFifteenMember
Risk-free rate | 0.30%us-gaap_FairValueAssumptionsRiskFreeInterestRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFifteenMember
Dividend yield | 3.00%us-gaap_FairValueAssumptionsExpectedDividendRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentyFifteenMember
Fiscal Year 2016 |
Fair Value Measurements [Line Items] |
Value of Flowers shares issued | 5,000 flo_BusinessAcquisitionEquityInterestsIssuedOrIssuableBasisForDeterminingValue / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentySixteenMember
Implied fair value of restricted shares | $ 4,297 us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentySixteenMember
Exercise price (per share) | $ 13.65 us-gaap_FairValueAssumptionsExercisePrice / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentySixteenMember
Expected term (yrs) | 4 years
Volatility | 25.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentySixteenMember
Risk-free rate | 0.40%us-gaap_FairValueAssumptionsRiskFreeInterestRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentySixteenMember
Dividend yield | 3.00%us-gaap_FairValueAssumptionsExpectedDividendRate / flo_DivisionOfStockIssuedAxis = flo_FiscalYearTwentySixteenMember

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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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