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    <Log type="Warning">[ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 68 fact(s) appearing in ix:hidden were eligible for transformation: dei:CurrentFiscalYearEndDate, dei:DocumentPeriodEndDate, dei:DocumentTransitionReport, dei:EntityCommonStockSharesOutstanding, dei:EntityEmergingGrowthCompany, dei:EntityFilerCategory, dei:EntityPublicFloat, dei:EntityShellCompany, dei:EntitySmallBusiness, us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment, us-gaap:CommonStockParOrStatedValuePerShare, us-gaap:CommonStockSharesAuthorized, us-gaap:CommonStockSharesIssued, us-gaap:CommonStockSharesOutstanding, us-gaap:DividendsPayableAmountPerShare, us-gaap:EarningsPerShareBasic, us-gaap:EarningsPerShareDiluted, us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest, us-gaap:NetIncomeLoss, us-gaap:QuarterlyFinancialInformationTextBlock, us-gaap:Revenues, us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock, us-gaap:TreasuryStockShares, whg:AccumulatedOtherComprehensiveIncomeLossTax, whg:NumberOfMajorCustomers, whg:ShareBasedCompensationArrangementWithIndividualRequisiteServicePeriod -  whg-20221231.htm 4</Log>
    <Log type="Warning">[ix-0514-Hidden-Fact-Not-Referenced] WARN: 3 fact(s) appearing in ix:hidden were not referenced by any -sec-ix-hidden style property: us-gaap:CommonStockSharesIssued, us-gaap:CommonStockSharesOutstanding, us-gaap:TreasuryStockShares -  whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0001-Axis-With-Inappropriate-Members] Member defined for the axis us-gaap:FairValueByFairValueHierarchyLevelAxis was not reported with any fact: us-gaap:ContingentConsiderationTypeDomain. Id: 51. whg-20221231.htm </Log>
    <Log type="Warning">[dqc-0001-Axis-With-Inappropriate-Members] Member defined for the axis us-gaap:StatementEquityComponentsAxis was not reported with any fact: us-gaap:AccountingStandardsUpdate201609Member. Id: 75. whg-20221231.htm </Log>
    <Log type="Warning">[dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:PaymentsToAcquireBusinessesGross with a value of 33953000 is dimensionally qualified with the us-gaap:BusinessAcquisitionAxis and the unallowable member us-gaap:CashAndCashEquivalentsMember. Base taxonomy member is not allowed by rule.  The properties of this us-gaap:PaymentsToAcquireBusinessesGross fact are Context: ic84e42e400874095bd82031e4c0187d0_D20220101-20221231, Unit: usd, Rule Element Id: 9366. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0001-Axis-With-Inappropriate-Members] The fact us-gaap:AssetAcquisitionConsiderationTransferredContingentConsideration with a value of 12901000 is dimensionally qualified with the us-gaap:BusinessAcquisitionAxis and the unallowable member us-gaap:ContingentConsiderationTypeDomain. Base taxonomy member is not allowed by rule.  The properties of this us-gaap:AssetAcquisitionConsiderationTransferredContingentConsideration fact are Context: i2a6e11f3de0a47a7b288c5bf6defd380_D20220101-20221231, Unit: usd, Rule Element Id: 9366. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0005-Context-Dates-After-Period-End-Date] The date of 2019-02-15 used for EntityCommonStockSharesOutstanding with a value of 9245779.000000 is earlier than the reporting period end date 2022-12-31.  The properties of this EntityCommonStockSharesOutstanding fact are Context: i6d2be7a60853497297f48eb41d107691_I20190215, Unit: shares, Rule Element Id: 17. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0005-Context-Dates-After-Period-End-Date] The date of 2019-02-15 used for EntityCommonStockSharesOutstanding with a value of 9245779.000000 is earlier than the reporting period end date 2022-12-31.  The properties of this EntityCommonStockSharesOutstanding fact are Context: i6d2be7a60853497297f48eb41d107691_I20190215, Unit: shares, Rule Element Id: 17. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0005-Context-Dates-After-Period-End-Date] The date of 2020-02-20 used for StockIssuedDuringPeriodSharesRestrictedStockAwardGross with a value of 468000.000000 and the SubsequentEventTypeAxis is earlier than or the same as the reporting period end date 2022-12-31.  The properties of this StockIssuedDuringPeriodSharesRestrictedStockAwardGross fact are Context: i3ccbf3d07b5e4c0f9f4c113db80b47e6_D20200220-20200220, Unit: shares, Rule Element Id: 48. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0005-Context-Dates-After-Period-End-Date] The date of 2020-02-20 used for StockIssuedDuringPeriodValueRestrictedStockAwardGross with a value of 5700000.000000 and the SubsequentEventTypeAxis is earlier than or the same as the reporting period end date 2022-12-31.  The properties of this StockIssuedDuringPeriodValueRestrictedStockAwardGross fact are Context: i3ccbf3d07b5e4c0f9f4c113db80b47e6_D20200220-20200220, Unit: usd, Rule Element Id: 48. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:DistributedEarnings has a value of -20823000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:DistributedEarnings fact are: Context: ic322f558bde64ffa8106c7c7814e5f45_D20210101-20211231, Unit: usd, Rule Element Id: 877. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:DistributedEarnings has a value of -1166000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:DistributedEarnings fact are: Context: iabe0547bc252433ba54f85131cee6bdf_D20220101-20221231, Unit: usd, Rule Element Id: 877. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:PaymentsToAcquireInvestments has a value of -178000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:PaymentsToAcquireInvestments fact are: Context: ic322f558bde64ffa8106c7c7814e5f45_D20210101-20211231, Unit: usd, Rule Element Id: 2826. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:PaymentsToAcquireInvestments has a value of -93000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:PaymentsToAcquireInvestments fact are: Context: ia02e27b9c6dc49e6b799d6ce9d119388_D20200101-20201231, Unit: usd, Rule Element Id: 2826. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:CashAcquiredInExcessOfPaymentsToAcquireBusiness has a value of -534000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:CashAcquiredInExcessOfPaymentsToAcquireBusiness fact are: Context: iabe0547bc252433ba54f85131cee6bdf_D20220101-20221231, Unit: usd, Rule Element Id: 476. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:UnrealizedLossOnSecurities has a value of -683000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:UnrealizedLossOnSecurities fact are: Context: i9e7c3891ce9747d3ac1103556cf85997_D20220101-20221231, Unit: usd, Rule Element Id: 3117. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:UnrealizedLossOnSecurities has a value of -1635000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:UnrealizedLossOnSecurities fact are: Context: iabe0547bc252433ba54f85131cee6bdf_D20220101-20221231, Unit: usd, Rule Element Id: 3117. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:UnrealizedLossOnSecurities has a value of -121000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:UnrealizedLossOnSecurities fact are: Context: i537dd0a9a41c49c69629dcc27043321b_D20210101-20211231, Unit: usd, Rule Element Id: 3117. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:UnrealizedLossOnSecurities has a value of -619000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:UnrealizedLossOnSecurities fact are: Context: ic322f558bde64ffa8106c7c7814e5f45_D20210101-20211231, Unit: usd, Rule Element Id: 3117. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:RestrictedStockAwardForfeitures has a value of -1300000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:RestrictedStockAwardForfeitures fact are: Context: iabe0547bc252433ba54f85131cee6bdf_D20220101-20221231, Unit: usd, Rule Element Id: 3524. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:DeferredTaxLiabilitiesLeasingArrangements has a value of -1214000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:DeferredTaxLiabilitiesLeasingArrangements fact are: Context: i1d237df6af3d40f9adfc9e95d8a9aa07_I20221231, Unit: usd, Rule Element Id: 3287. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:DeferredTaxLiabilitiesLeasingArrangements has a value of -1232000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:DeferredTaxLiabilitiesLeasingArrangements fact are: Context: ia5a41b87a5af4765b42f16eb5324515b_I20211231, Unit: usd, Rule Element Id: 3287. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit has a value of -19331000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit fact are: Context: iabe0547bc252433ba54f85131cee6bdf_D20220101-20221231, Unit: usd, Rule Element Id: 7232. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0015-Negative-Values] Fact us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount has a value of -1105000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount fact are: Context: i1d237df6af3d40f9adfc9e95d8a9aa07_I20221231, Unit: usd, Rule Element Id: 6984. whg-20221231.htm 4</Log>
    <Log type="Warning">[dqc-0048-Required-Calculation-Parent-Element-In-The-Cash-Flow-Statement] The filing should include in the cash flow statement calculation linkbase(s) http://westwoodgroup.com/role/BusinessCombinationsandAssetAcquisitionsDetails - 0000097 - Disclosure - Business Combinations and Asset Acquisitions (Details) one of the following elements as the root(first element) of the calculation tree to represent the aggregate change in cash for the period: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect, CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect, NetCashProvidedByUsedInContinuingOperations (As long as the element NetCashProvidedByUsedInDiscontinuedOperations is also included the reconciliation between opening and closing cash). The calculation linkbase in the filing has the following root elements defined: CashAndCashEquivalentsPeriodIncreaseDecrease. Rule Element Id: 7482. whg-20221231.htm </Log>
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    <File>exhibit311ceocertification.htm</File>
    <File>exhibit312cfocertification.htm</File>
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  <BaseTaxonomies>
    <BaseTaxonomy items="1360">http://fasb.org/us-gaap/2021-01-31</BaseTaxonomy>
    <BaseTaxonomy items="38">http://xbrl.sec.gov/dei/2021q4</BaseTaxonomy>
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  <HasPresentationLinkbase>true</HasPresentationLinkbase>
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