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Investment in Flowers Foods, Inc. Common Stock Fund - Schedule of Plan Held Investments in The Company (Detail) - EBP 004 [Member] - USD ($)
Dec. 31, 2024
Dec. 31, 2023
Employee Benefit Plan, Investment, Fair Value and NAV [Line Items]    
Number of common shares held 1,609,840 1,807,780
Common shares as a percentage of the Plan's total investments at fair value 3.90% 5.14%
Common shares as a percentage of Flowers Foods, Inc. 0.77% 0.86%
Short term investment fund $ 260,541 $ 391,285
Common Stock Fund [Member]    
Employee Benefit Plan, Investment, Fair Value and NAV [Line Items]    
Number of common shares held 1,621,384 1,815,507
Employee Benefit Plan, Employer, Common Stock [Member]    
Employee Benefit Plan, Investment, Fair Value and NAV [Line Items]    
Number of common shares held 1,621,384 1,815,507
Fair value of common shares held (at $20.66 and $22.51 per common share, respectively) $ 33,497,793 $ 40,867,063