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

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

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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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Fair value amount of debt instrument that was repurchased.

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Face (par) amount of the original debt instrument that was repurchased.

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

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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The carrying value as of the balance sheet date of the current portion 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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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Long-Term Debt Other Long-term Debt Disclosure (Details) $ in Thousands, $ in Thousands		3 Months Ended			12 Months Ended
	Mar. 31, 2020 CAD ($)	Jul. 04, 2021 USD ($)	Apr. 04, 2021 CAD ($)	Jan. 03, 2021 CAD ($)	Dec. 31, 2023 USD ($)	Jan. 01, 2023 USD ($)	Jan. 02, 2022 USD ($)	Dec. 31, 2023 CAD ($)	Jul. 03, 2022 USD ($)	Dec. 29, 2019 USD ($)
Debt Instrument
Gain (loss) on early extinguishment of debt, net					$ 2,283	$ 0	$ (17,917)
Letters of Credit Outstanding, Amount					28,847
Restricted cash					35,848	35,203	27,535
Interest Expense					124,061	$ 122,319	109,185
Series 2022-1 Class A-2-I Notes
Debt Instrument
Debt Instrument, Face Amount					$ 100,000
Debt Instrument, Interest Rate, Effective Percentage					4.70%			4.70%
Debt Instrument, Interest Rate, Stated Percentage					4.236%	4.236%		4.236%
Series 2022-1 Class A-2-II Notes
Debt Instrument
Debt Instrument, Face Amount					$ 400,000
Debt Instrument, Interest Rate, Effective Percentage					4.70%			4.70%
Debt Instrument, Interest Rate, Stated Percentage					4.535%	4.535%		4.535%
Series 2021-1 Class A-2-I Notes
Debt Instrument
Debt Instrument, Face Amount					$ 450,000
Debt Instrument, Interest Rate, Effective Percentage					2.50%			2.50%
Debt Instrument, Interest Rate, Stated Percentage					2.37%	2.37%		2.37%
Series 2021-1 Class A-2-II Notes
Debt Instrument
Debt Instrument, Face Amount					$ 650,000
Debt Instrument, Interest Rate, Effective Percentage					2.90%			2.90%
Debt Instrument, Interest Rate, Stated Percentage					2.775%	2.775%		2.775%
Series 2019-1 Class A-2-I Notes
Debt Instrument
Debt Instrument, Face Amount					$ 400,000
Debt Instrument, Interest Rate, Effective Percentage					4.00%			4.00%
Debt Instrument, Interest Rate, Stated Percentage					3.783%	3.783%		3.783%
Series 2019-1 Class A-2-II Notes
Debt Instrument
Debt Instrument, Face Amount					$ 450,000
Debt Instrument, Interest Rate, Effective Percentage					4.20%			4.20%
Debt Instrument, Interest Rate, Stated Percentage					4.08%	4.08%		4.08%
Series 2018-1 Class A-2-II Notes
Debt Instrument
Debt Instrument, Face Amount					$ 475,000
Debt Instrument, Interest Rate, Effective Percentage					4.00%			4.00%
Debt Instrument, Interest Rate, Stated Percentage					3.884%	3.884%		3.884%
Series 2021-1 Class A-1 Notes \| Line of Credit
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity					$ 300,000
Line of Credit, Outstanding, Amount					$ 0
Series 2021-1 Class A-1 Notes \| Line of Credit \| Minimum
Debt Instrument
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage					0.40%
Series 2021-1 Class A-1 Notes \| Line of Credit \| Maximum
Debt Instrument
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage					0.75%
Series 2021-1 Class A-1 Notes \| Letter of Credit
Debt Instrument
Letters of Credit Outstanding, Amount					$ 28,627
Series 2019-1 Class A-1 Notes \| Line of Credit
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity							150,000
Series 2020-1 Class A-1 Notes \| Line of Credit
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity							100,000
Series 2021-1 Senior Notes
Debt Instrument
Gain (loss) on early extinguishment of debt, net		$ (17,917)
Specified make-whole payment		9,632
Write off of Deferred Debt Issuance Cost		$ 8,285
Debt Issuance Costs, Gross							20,873
Series 2022-1 Senior Notes
Debt Instrument
Debt Instrument, Face Amount									$ 500,000
Debt Issuance Costs, Gross						$ 10,232
Class A-2 Senior Secured Notes
Debt Instrument
Debt Instrument, Repurchased Face Amount					29,171
Debt Instrument, Repurchase Amount					24,935
Gain (loss) on early extinguishment of debt, net					3,914
7% debentures
Debt Instrument
Debt Instrument, Face Amount					100,000
Debt Instrument, Repurchased Face Amount					40,430					$ 10,000
Debt Instrument, Repurchase Amount					40,517					10,550
Gain (loss) on early extinguishment of debt, net					$ (1,631)
Debt Instrument, Interest Rate, Effective Percentage					8.60%			8.60%
Debt Instrument, Interest Rate, Stated Percentage					7.00%	7.00%		7.00%
7% debentures \| Premium
Debt Instrument
Debt Instrument, Repurchase Amount										500
7% debentures \| Transaction Fees
Debt Instrument
Debt Instrument, Repurchase Amount										$ 50
Restricted Cash Held for Principal Interest and Fees
Debt Instrument
Restricted cash					$ 35,483	$ 34,850
Canadian Subsidiary \| Line of Credit
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity								$ 6,000
Line of Credit, Outstanding, Amount								$ 0
Proceeds from Lines of Credit	$ 5,500
Repayments of Lines of Credit			$ 2,500	$ 3,000
Wendy's U.S. Advertising Fund \| Line of Credit
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity					15,000
Line of Credit, Outstanding, Amount					$ 0
Debt Instrument, Basis Spread on Variable Rate					2.25%
Corporate Debt Securities
Debt Instrument
Interest Expense					$ 112,659	$ 110,751	$ 98,356