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Summary of Significant Accounting Policies Self-insurance (Details) $ in Thousands | Jan. 01, 2023 USD ($)
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Insurance Claims |
Loss Contingencies |
Loss Contingency, Range of Possible Loss per Occurrence, Maximum | $ 500

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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. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The estimated maximum amount of possible per occurrence loss from the contingency. + References No definition available. + Details
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Namespace Prefix: | wen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |