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Lease Commitments - Future Minimum Sublease and Lease Rental Income (Details) $ in Thousands | Dec. 28, 2024 USD ($)
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Subleases |
2025 | $ (5,655)
2026 | (4,630)
2027 | (3,658)
2028 | (2,392)
2029 | (1,456)
Thereafter | (2,037)
Total Lease Payments | (19,827)
Less: Interest | 29,533
Present value of lease liabilities | $ (19,827)

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- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition Future Sublease Income + References No definition available. + Details
Name: | wmk_FutureSubleaseIncome
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Due Next Twelve Months + References No definition available. + Details
Name: | wmk_SubleaseIncomeDueNextTwelveMonths
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Due Year Five + References No definition available. + Details
Name: | wmk_SubleaseIncomeDueYearFive
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Due Year Four + References No definition available. + Details
Name: | wmk_SubleaseIncomeDueYearFour
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Due Year Three + References No definition available. + Details
Name: | wmk_SubleaseIncomeDueYearThree
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Due Year Two + References No definition available. + Details
Name: | wmk_SubleaseIncomeDueYearTwo
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Net + References No definition available. + Details
Name: | wmk_SubleaseIncomeNet
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Sublease Income, Payments, Due after Year Five + References No definition available. + Details
Name: | wmk_SubleaseIncomePaymentsDueAfterYearFive
Namespace Prefix: | wmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant