Accrued debt issuance costs, current.

No definition available.

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Namespace Prefix:	flo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Additional financing costs incurred.

+ References

No definition available.

+ Details

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Namespace Prefix:	flo_
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Balance Type:	debit
Period Type:	duration

- Definition

Covenant maximum leverage ratio.

+ References

No definition available.

+ Details

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Namespace Prefix:	flo_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument Change Of Control Triggering Event Redemption Price Percentage Of Principal Amount Redeemed.

+ References

No definition available.

+ Details

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Namespace Prefix:	flo_
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Balance Type:	na
Period Type:	duration

- Definition

Accordion feature amount for the credit facility

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Minimum leverage ratio on covenant holiday.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
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- Definition

Redemption price for senior notes.

+ References

No definition available.

+ Details

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Namespace Prefix:	flo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

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Balance Type:	debit
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

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Balance Type:	na
Period Type:	duration

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Period Type:	duration

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash outflow for loan and debt issuance costs.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Balance Type:
Period Type:

Debt and Other Obligations - Additional Information (Detail) - USD ($)						3 Months Ended	4 Months Ended
	Feb. 14, 2025	Feb. 05, 2025	Apr. 12, 2023	Mar. 09, 2021	Sep. 28, 2016	Dec. 28, 2024	Apr. 19, 2025	Apr. 20, 2024	Apr. 14, 2025	Jan. 07, 2025	Apr. 14, 2023
Debt Instrument [Line Items]
Debt instrument face amount						$ 900,000,000	$ 1,700,000,000
Payments of financing costs							10,056,000	$ 150,000
Additional financing costs incurred							1,500,000
Acquisition related costs						2,000,000	13,764,000	$ 0
Minimum
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							0
Maximum
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							2,200,000
2035 notes
Debt Instrument [Line Items]
Debt instrument face amount	$ 500,000,000						$ 500,000,000
Notes due year							Mar. 15, 2035
Debt instrument interest rate	5.75%
Price to redeem notes as a percentage of principal	100.00%
Change of control triggering event price to redeem notes as a percentage of principal							101.00%
Debt discount	$ 900,000
Accrued issuance costs	4,800,000
2055 notes
Debt Instrument [Line Items]
Debt instrument face amount	$ 300,000,000						$ 300,000,000
Notes due year							Mar. 15, 2055
Debt instrument interest rate	6.20%
Price to redeem notes as a percentage of principal	100.00%
Change of control triggering event price to redeem notes as a percentage of principal							101.00%
Debt discount	$ 2,000,000
Accrued issuance costs	$ 3,600,000
2031 Notes
Debt Instrument [Line Items]
Debt instrument face amount				$ 500,000,000.0		500,000,000	$ 500,000,000
Notes due year							Mar. 15, 2031
Debt instrument interest rate				2.40%
Price to redeem notes as a percentage of principal				100.00%
Variable interest rate				0.20%
Change of control triggering event price to redeem notes as a percentage of principal							101.00%
Debt discount				$ 2,400,000
Accrued issuance costs				$ 4,800,000
2026 Notes
Debt Instrument [Line Items]
Debt instrument face amount					$ 400,000,000.0	400,000,000	$ 400,000,000
Notes due year							Oct. 01, 2026
Debt instrument interest rate					3.50%
Price to redeem notes as a percentage of principal					100.00%
Variable interest rate					0.30%
Change of control triggering event price to redeem notes as a percentage of principal							101.00%
Debt discount					$ 2,100,000
Payments of financing costs					$ 3,600,000
Standby Letters Of Credit
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period						8,400,000	$ 8,400,000
Accounts Receivable Securitization Facility
Debt Instrument [Line Items]
Payments for debt issuance costs							200,000
Accounts Receivable Repurchase Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity							200,000,000		$ 250,000,000		$ 200,000,000
Balance of unamortized financing costs						300,000	300,000
Line of credit facility, additional borrowing capacity									$ 50,000,000
Accounts Receivable Repurchase Facility \| Minimum
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							105,000,000
Accounts Receivable Repurchase Facility \| Maximum
Debt Instrument [Line Items]
Line of credit facility outstanding daily balance during period							155,000,000
Unsecured Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity							500,000,000
Balance of unamortized financing costs						$ 500,000	1,900,000
Unsecured Credit Facility \| Federal Funds Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.06%
Unsecured Credit Facility \| Federal Funds Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		0.225%
Previous Credit Facility
Debt Instrument [Line Items]
Line of credit facility, expiration date			Jul. 30, 2026
Covenant, maximum leverage ratio			4.00
Minimum leverage ratio on covenant holiday			3.75
Line of credit facility, expiration period			5 years
Line of credit facility, amount available			$ 500,000,000
Line of credit facility, additional borrowing capacity			200,000,000
Previous Credit Facility \| Unsecured Credit Facility Total Potential Commitment
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 700,000,000
Previous Credit Facility \| Base Rate Loans \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.00%
Previous Credit Facility \| Base Rate Loans \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			0.525%
Previous Credit Facility \| Federal Funds Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.06%
Previous Credit Facility \| Federal Funds Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			0.225%
Previous Credit Facility \| SOFR
Debt Instrument [Line Items]
Basis spread on variable rate			0.10%
Previous Credit Facility \| SOFR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.815%
Previous Credit Facility \| SOFR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			1.525%
Previous Credit Facility \| Floor
Debt Instrument [Line Items]
Basis spread on variable rate			0.00%
New Credit Facility
Debt Instrument [Line Items]
Line of credit facility, expiration date		Feb. 05, 2030
Covenant, maximum leverage ratio		4
Minimum leverage ratio on covenant holiday		3.75
Line of credit facility, expiration period		5 years
Line of credit facility, amount available		$ 500,000,000
Line of credit facility, additional borrowing capacity		200,000,000.0
New Credit Facility \| Unsecured Credit Facility Total Potential Commitment
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 700,000,000.0
New Credit Facility \| Base Rate Loans \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.00%
New Credit Facility \| Base Rate Loans \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		0.525%
New Credit Facility \| SOFR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.815%
New Credit Facility \| SOFR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		1.525%
Term Loan Facility
Debt Instrument [Line Items]
Acquisition related costs							$ 3,600,000
Term Loan Facility \| Simple Mills
Debt Instrument [Line Items]
Debt financing for acquisition										$ 795,000,000