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Lease Commitments - Future Minimum Sublease and Lease Rental Income (Details) $ in Thousands | Dec. 31, 2022 USD ($)
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Lessee, Operating Sublease, Description [Abstract] |
2023 | $ (4,363)
2024 | (3,504)
2025 | (2,925)
2026 | (2,166)
2027 | (1,721)
Thereafter | (4,902)
Total Lease Payments | (19,581)
Less: Interest | 22,616
Present value of lease liabilities | $ (19,581)

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + 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