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          <link:loc xlink:type="locator" xlink:href="reg-20240630.xsd#reg_AccountingStandardsUpdate202309Member" xlink:label="reg_AccountingStandardsUpdate202309Member"/>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnconsolidatedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unconsolidated Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnconsolidatedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unconsolidated Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfProperties_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of real estate, net of tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockRemainingAvailableForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock remaining available for issuance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockRemainingAvailableForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Remaining Available for Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockRemainingAvailableForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock remaining available for issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instruments, Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other property income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncement or Change in Accounting Principle, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-sale, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Available-for-sale Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Available-for-sale debt securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BelowMarketLeaseAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Below Market Lease, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BelowMarketLeaseAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated accretion of acquired lease intangible liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionGrossPurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business acquisition gross purchase price.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionGrossPurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition Gross Purchase Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionGrossPurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business acquisition gross purchase price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRepaidPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt repaid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRepaidPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Repaid, Principal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EquityIssuancesCommonStockAuthorizedForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity issuances common stock authorized for issuance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EquityIssuancesCommonStockAuthorizedForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Issuances Common Stock Authorized for Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EquityIssuancesCommonStockAuthorizedForIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity issuances, common stock authorized for issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfPurchasePriceAndAllocation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of purchase price and allocation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfPurchasePriceAndAllocation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Purchase Price and Allocation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfPurchasePriceAndAllocation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of purchase price and allocation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Prepaid Expense and Other Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivable Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ProceedsFromIssuanceOfFixedRateUnsecuredNotesNetOfDebtDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from issuance of fixed rate unsecured notes net of debt discount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ProceedsFromIssuanceOfFixedRateUnsecuredNotesNetOfDebtDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Issuance Of Fixed Rate Unsecured Notes Net Of Debt Discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ProceedsFromIssuanceOfFixedRateUnsecuredNotesNetOfDebtDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of fixed rate unsecured notes, net of debt discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UbpAcquisitionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">UBP [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UbpAcquisitionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UBP Acquisition [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UbpAcquisitionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">UBP acquisition.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Information [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DateOfIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Date of Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DateOfIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Date Of Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DateOfIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Date of issuance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CompoAcresNorthShoppingCenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Compo Acres North Shopping Center [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CompoAcresNorthShoppingCenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Compo acres north shopping center.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AppleValleyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Apple Valley.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AppleValleyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Apple Valley [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AppleValleyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Apple Valley [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_InvestmentsInRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_InvestmentsInRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in Real Estate Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_InvestmentsInRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments in real estate partnerships.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ReallocationOfEquityUponAcquisitionOfNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reallocation of equity upon acqusition of non-controlling interest</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ReallocationOfEquityUponAcquisitionOfNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Reallocation of equity upon acquisition of non-controlling interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisition of UBP, net of cash acquired of $14,143</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments to Acquire Businesses, Net of Cash Acquired, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value of Interest Rate Derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PartnersCapitalAccountAdjustmentForNoncontrollingInterestsInOperatingPartnership_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustment for noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PartnersCapitalAccountAdjustmentForNoncontrollingInterestsInOperatingPartnership_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners Capital Account, Adjustment for Noncontrolling Interests in Operating Partnership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PartnersCapitalAccountAdjustmentForNoncontrollingInterestsInOperatingPartnership_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Partners capital account, adjustment for noncontrolling interests in operating partnership.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Business Acquisitions By Acquisition [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherAssetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other Asset [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherAssetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Asset [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherAssetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Limited partners' interests in consolidated partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Net Income (Loss) Limited Partnerships, Nonredeemable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Total Purchase Price Including Transaction Costs Capitalized and Allocated</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantAndOtherReceivablesNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tenant and other receivables, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantAndOtherReceivablesNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tenant and Other Receivables, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantAndOtherReceivablesNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tenant and Other Receivables, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BaederwoodShoppesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Baederwood Shoppes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BaederwoodShoppesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Baederwood Shoppes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BaederwoodShoppesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Baederwood Shoppes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends record date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date of Record</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SummaryOfTermsAndConditionsOfPreferredStockOutstandingTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Terms and Conditions of Preferred Stock Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SummaryOfTermsAndConditionsOfPreferredStockOutstandingTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Terms And Conditions Of Preferred Stock Outstanding [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SummaryOfTermsAndConditionsOfPreferredStockOutstandingTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of terms and conditions of preferred stock outstanding.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndNotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts and Financing Receivable, after Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndNotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts and Financing Receivable, after Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndNotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts and Notes Receivable, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Building and improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Summary of Terms and Conditions of Preferred Stock Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Stock by Class [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Stock By Class [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Net income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SixPointTwoFiveZeroPercentageSeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">6.250% Series A Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SixPointTwoFiveZeroPercentageSeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Six Point Two Five Zero Percentage Series A Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SixPointTwoFiveZeroPercentageSeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Six point two five zero percentage series A preferred stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Groups, Including Discontinued Operations [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DownreitPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">DownREIT Partnerships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DownreitPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">DownREIT Partnerships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DownreitPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">DownREIT partnerships.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesKCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series K Cumulative Redeemable Preferred Stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesKCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series K Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesKCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">5.875% Series K Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddleCommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Urstadt Biddle common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddleCommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Urstadt Biddle Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddleCommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Urstadt Biddle Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidatedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidatedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Trading, and Equity Securities, FV-NI, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Trading, and Equity Securities, FV-NI</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Securities, Trading, and Equity Securities, FV-NI</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Balance Sheet Location [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfLongLivedAssetsHeldForSaleTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure of Long-Lived Assets Held-for-Sale [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfLongLivedAssetsHeldForSaleTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Properties Held for Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_KingsParkShoppingCenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Kings Park Shopping Center</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_KingsParkShoppingCenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kings Park Shopping Center [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_KingsParkShoppingCenterMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kings Park Shopping Center [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cumulative Redeemable Preferred Stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShareRepurchasedWeightedAveragePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares repurchased weighted average price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShareRepurchasedWeightedAveragePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Repurchased Weighted Average Price per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShareRepurchasedWeightedAveragePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share repurchased weighted average price per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Properties held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Properties Held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesHeldForSale_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed properties held for sale.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued, net of issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock issued during period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAllocatedToGeneralPartners_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Allocated to General Partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAllocatedToGeneralPartners_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income attributable to common unit holders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Date of acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Effective Date of Acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Date Purchased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Comprehensive income attributable to the Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Comprehensive income attributable to the Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_Rule10B51TradingPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rule10 B51 Trading Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_Rule10B51TradingPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rule10 B51 Trading Plan Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_Rule10B51TradingPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Rule10 B51 Trading Plan Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Shares, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest rate derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Cash Flow Hedge Liability at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Cash Flow Hedge Liability at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateCashFlowHedgeLiabilityAtFairValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Interest Rate Cash Flow Hedge Liability at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Secured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfSecuredDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Scheduled principal payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Receivable, after Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, after Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tenant and other receivables, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AssetmanagementservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Asset management services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AssetmanagementservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assetmanagementservices [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AssetmanagementservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset management services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfWeightedAverageAmortizationPeriodOfIntangibleAssetsAndLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Weighted Average Amortization Period of Intangible Assets and Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfWeightedAverageAmortizationPeriodOfIntangibleAssetsAndLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Weighted Average Amortization Period of Intangible Assets and Liabilities [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfWeightedAverageAmortizationPeriodOfIntangibleAssetsAndLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of weighted average amortization period of intangible assets and liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SecuredOvernightFinancingRateSofrMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Secured overnight financing rate SOFR Member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SecuredOvernightFinancingRateSofrMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Overnight Financing Rate SOFR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SecuredOvernightFinancingRateSofrMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SOFR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preferred units, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred units of general partner units, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accumulated Other Comprehensive Income (Loss) [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">AOCI Attributable to Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Other comprehensive income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other comprehensive income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_NY_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">New York-Newark-Jersey City [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_NY_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NEW YORK</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured credit facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Unsecured Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Remainder of Fiscal Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RisksAndUncertaintiesPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Risks and uncertainties policy.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RisksAndUncertaintiesPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Risks and Uncertainties Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RisksAndUncertaintiesPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risks and Uncertainties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccountingStandardsUpdate202307Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accounting Standards Update 2023-07.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccountingStandardsUpdate202307Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2023-07 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccountingStandardsUpdate202307Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASU 2023-07 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Payable and Unsecured Credit Facilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecurityDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tenants' security, escrow deposits and prepaid rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecurityDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Security Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of revenues and other receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues And Other Receivables Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues and Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Distributions to partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends paid to common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfVariableRateMortgageLoansFixedThroughInterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of variable rate mortgage loans, fixed through interest rate swaps.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfVariableRateMortgageLoansFixedThroughInterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Variable Rate Mortgage Loans, Fixed Through Interest Rate Swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfVariableRateMortgageLoansFixedThroughInterestRateSwaps_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of variable rate mortgage loans fixed through interest rate swaps</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-in Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOperatingLeasedAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Operating Leased Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOperatingLeasedAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Operating Leased Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesBPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesBPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series B Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAcquiredFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net of cash acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAcquiredFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Acquired from Acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfShoppingCentersAcquiredOrLandAcquiredOrLeasedForDevelopmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of shopping centers acquired or land acquired or leased for development.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfShoppingCentersAcquiredOrLandAcquiredOrLeasedForDevelopmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Shopping Centers Acquired Or Land Acquired Or Leased For Development Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfShoppingCentersAcquiredOrLandAcquiredOrLeasedForDevelopmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Properties Acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average grant-date fair value (in dollars per share)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value, Amount Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Contract [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeContractTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Furniture, fixtures, and equipment, net ("FF&amp;E")</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Property, Plant and Equipment, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Property, Plant and Equipment, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property, Plant and Equipment, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Variable Interest Entities [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Variable Interest Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends declared date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Comprehensive Income [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted stock issued, net of amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle accounting standards update adopted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Adopted [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of exchangeable operating partnership units.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance Of Exchangeable Operating Partnership Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Exchangeable operating partnership units.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less: comprehensive income attributable to noncontrolling interests:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Value of common stock issued for acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred, Equity Interests Issued and Issuable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Preferred Stock, Shares Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Preferred Stock, Shares Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partners' Capital Account, Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited partner units, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInVariableInterestEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Variable Interest Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInVariableInterestEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interest in Variable Interest Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInVariableInterestEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Noncontrolling interest in variable interest entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Operating Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in assets and liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements or Change in Accounting Principle [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SharesIssuedAndOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares Issued and Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SharesIssuedAndOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued And Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SharesIssuedAndOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shares issued and outstanding.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyManagementFeeRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management, transaction, and other fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyManagementFeeRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Management, transaction, and other income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyManagementFeeRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property Management Fee Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss) before Reclassifications, Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss) before Reclassifications, Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income (loss) before reclassification</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating Lease, Lease Income, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Lease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed and in-substance fixed lease income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FixedRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FixedRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FixedRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fixed rate debt.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentRiskAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion of Stock, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of Stock, Description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity, Consolidated, Carrying Amount, Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Variable interest entity, consolidated, carrying amount, assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountContributions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions from partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountContributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital Account, Contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityDepositLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tenants' security, escrow deposits and prepaid rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityDepositLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Deposit Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right of use assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Capital Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Capital Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentContinuingOperationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Continuing Operations [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentContinuingOperationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Continuing Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccrualForEnvironmentalLossContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accrual for Environmental Loss Contingencies, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccrualForEnvironmentalLossContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Accrual for Environmental Loss Contingencies, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccrualForEnvironmentalLossContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Accrual for Environmental Loss Contingencies, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccrualForEnvironmentalLossContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrual for Environmental Loss Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccrualForEnvironmentalLossContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued liabilities for environmental remediation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investment Property, Accumulated Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less: accumulated depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: accumulated depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosure of cash flow information:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockConversionRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock conversion ratio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockConversionRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Conversion Ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockConversionRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock conversion ratio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UbSubICommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">UB Sub I common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UbSubICommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UB Sub I common stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UbSubICommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">UB Sub I common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase Price Allocation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase Price Allocation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Purchase price allocation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Compensation Arrangement with Individual, Compensation Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred compensation expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IslandVillageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Island village</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IslandVillageMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Island Village [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total Partners' Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Shareholders' Equity [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments and Hedging Activities Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AdjustmentForNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustment for noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AdjustmentForNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment for Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AdjustmentForNoncontrollingInterests_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Adjustment for noncontrolling interests.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating Lease, Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Merger Two.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Merger Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Merger Two [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues, and Tenant and Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Component</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle, accounting standards update, adoption date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Adoption Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Land [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Amortization of Debt Issuance Costs and Discounts, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Issuance Costs and Discounts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of deferred loan costs and debt premiums</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Lines of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayment of unsecured credit facilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OffMarketLeaseUnfavorableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Off-Market Lease, Unfavorable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OffMarketLeaseUnfavorableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Off Market Lease Unfavorable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OffMarketLeaseUnfavorableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Off-Market Lease, Unfavorable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net income to net cash provided by operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt discount (premium)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Instrument, Unamortized Discount (Premium), Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unamortized Discount (Premium), Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Unamortized debt premium/(discount) and issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Frequency [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Frequency</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfRealEstateProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of operating Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfRealEstateProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Number of real estate properties acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfRealEstateProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of real estate properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInOperatingPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exchangeable operating partnership units, aggregate redemption value of $68,390 and $74,199 at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInOperatingPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Operating Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToDevelopRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Develop Real Estate Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToDevelopRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Real estate development and capital improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net Income (Loss) Available to Common Stockholders, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income attributable to common shareholders - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Type of Partners' Capital Account, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Type of Partners' Capital Account, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Real Estate Assets, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromLimitedPartnership_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Limited Partnership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromLimitedPartnership_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions from limited partners in consolidated partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Significant Accounting Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property Dispositions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchase Program, Authorized Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock repurchase program, authorized amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdateExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net proceeds from common stock issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Conversion of Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued for partnership units exchanged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ExchangeableOperatingPartnershipUnitConvertedToCommonStockOfParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Exchangeable operating partnership unit converted to common stock of parent company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ExchangeableOperatingPartnershipUnitConvertedToCommonStockOfParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exchangeable Operating Partnership Unit Converted to Common Stock of Parent Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ExchangeableOperatingPartnershipUnitConvertedToCommonStockOfParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exchangeable operating partnership units converted to common stock of Parent Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BaseRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Base Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BaseRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Base Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stock repurchased and retired during period, value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock repurchased and retired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchased and Retired During Period, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Stock repurchased and retired during period, value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Common stock repurchased and retired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock $0.01 par value per share, 220,000,000 shares authorized; 181,493,494 and 184,581,070 shares issued and outstanding at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Noncontrolling Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling interests:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mortgage loan paid off</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Repayments of Long-Term Debt, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Per Diluted Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income per common share - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease intangible liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Intangible Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed intangible liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effective portion of change in fair value of derivative instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Effective portion of change in fair value of derivative instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-based Payment Arrangement, Noncash Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Noncash Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation, net of capitalization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NewRule10B51TradingPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">New Rule 10B51 Trading Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NewRule10B51TradingPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Rule 10B51 Trading Plan Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NewRule10B51TradingPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">New Rule 10B51 Trading Plan Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentOperatingActivitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Activities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentOperatingActivitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOperatingActivitiesSegmentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Activities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOperatingActivitiesSegmentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAssumed1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes payable assumed in acquisition, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAssumed1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Assumed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total purchase price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total purchase price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsLeasingAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Costs, Leasing, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsLeasingAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred costs accumulated amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesPayableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Notes payable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesPayableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares of common stock issued for merger</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Acquisitions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockAndPreferredStockAndExchangeableOperatingPartnershipDividendsDeclaredButNotPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common and Preferred stock, and exchangeable operating partnership dividends declared but not paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockAndPreferredStockAndExchangeableOperatingPartnershipDividendsDeclaredButNotPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock and Preferred Stock and Exchangeable Operating Partnership Dividends Declared but Not Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockAndPreferredStockAndExchangeableOperatingPartnershipDividendsDeclaredButNotPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock and preferred stock and exchangeable operating partnership dividends declared but not paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital Account, Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions to partners</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapitalAccountDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Partners' Capital Account, Distributions, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts reclassified from accumulated other comprehensive income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amounts reclassified from accumulated other comprehensive income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesbyMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite Lived Intangible Liabilitiesby Major Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesbyMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite Lived Intangible Liabilitiesby Major Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesbyMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Finite-Lived Intangible Liabilities by Major Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration risk percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">This element represents the amount of gain (loss) on sale of properties during the reporting period net of the applicable income taxes realized.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain Loss On Sale Of Properties Net Of Applicable Income Taxes1</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on sale of real estate, net of tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes1_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of real estate, net of tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment, Tax Withholding, Share-Based Payment Arrangement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repurchase of common shares in conjunction with equity award plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Groups, Including Discontinued Operations [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Properties Disposed of</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsRepurchasedOfCommonStockByParentNetOfIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common units repurchased of common stock by parent net of issuance.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsRepurchasedOfCommonStockByParentNetOfIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Units Repurchased Of Common Stock By Parent Net Of Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsRepurchasedOfCommonStockByParentNetOfIssuance_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired lease intangible assets, less accumulated amortization of $374,411 and $364,413 at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Finite-Lived Intangible Assets, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Finite-Lived Intangible Assets, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Finite-Lived Intangible Assets, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DateOfCallableByCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Callable By Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DateOfCallableByCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Date Of Callable By Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DateOfCallableByCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Date of callable by company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other comprehensive income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income (loss):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, issue price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ParentCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Parent Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ParentCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Parent Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_VariableRateMortgageLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate Mortgage Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_VariableRateMortgageLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Variable rate mortgage loans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_VariableRateMortgageLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate Mortgage Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Comprehensive income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Contributions from non-controlling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions from limited partners in consolidated partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating expenses:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Per common unit - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income per common share - diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WhollyOwnedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Wholly Owned Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WhollyOwnedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Wholly Owned Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Depletion and Amortization, Nonproduction, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization, Nonproduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LinesOfCreditFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured credit facilities, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LinesOfCreditFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lines of Credit, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TheShopsAtStoneBridgeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The shops at stone bridge.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TheShopsAtStoneBridgeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">The Shops at Stone Bridge [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TheShopsAtStoneBridgeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">The Shops at Stone Bridge [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccruedCommonStockRepurchaseInAccountsPayableAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued common stock repurchase in Accounts payable and other liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccruedCommonStockRepurchaseInAccountsPayableAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued common stock repurchase in Accounts payable and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccruedCommonStockRepurchaseInAccountsPayableAndOtherLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued common stock repurchase in Accounts payable and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity and Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantsSecurityEscrowDepositsAndPrepaidRentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tenants' Security, Escrow Deposits and Prepaid Rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantsSecurityEscrowDepositsAndPrepaidRentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tenants' Security, Escrow Deposits and Prepaid Rent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantsSecurityEscrowDepositsAndPrepaidRentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tenants' Security, Escrow Deposits and Prepaid Rent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for interest (net of capitalized interest of $3,176 and $2,534 in 2024 and 2023, respectively)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share Basic [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid-in-capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Additional Paid in Capital, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners' Capital Account, Units Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General partner units, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RetailSiteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail Site [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RetailSiteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredMaturitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unsecured maturities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredMaturitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Maturities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredMaturitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Maturities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit maximum amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Line of credit facility, maximum borrowing capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfLoanCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Loan Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfLoanCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Payment of loan costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Contractual Term [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease Contractual Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition Other Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business Acquisition Other Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Unrealized loss on available-for-sale debt securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Unrealized (loss) gain on available-for-sale debt securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized (loss) gain on available-for-sale debt securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ConcentrationRentPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration rent, percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ConcentrationRentPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Rent, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ConcentrationRentPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Concentration rent, percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfEquityInterestAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Equity Interest Acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfEquityInterestAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of Equity Interest Acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfEquityInterestAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of equity interest acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Effects Of Changes Net [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), before Reclassifications, Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other comprehensive income before reclassification</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income before reclassification</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchase Program Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock repurchase program expiration date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liability Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Risk Concentrations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable, accrued expenses, and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition, Pro Forma Information</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Pro Forma Information [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionNumberOfSharesOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares of common stock issued for acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionNumberOfSharesOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition Number of Shares of Common Stock Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionNumberOfSharesOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business Acquisition Number of Shares of Common Stock Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_VariableRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_VariableRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_VariableRateDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Variable rate debt.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders' equity/Partners' capital:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Real Estate Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed real estate assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationConsiderationTransferredOtherCashPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other cash payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationConsiderationTransferredOtherCashPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Consideration Transferred Other Cash Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationConsiderationTransferredOtherCashPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination consideration transferred other cash payments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNumberOfInstrumentsHeld_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative, Number of Instruments Held, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNumberOfInstrumentsHeld_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Number of Instruments Held</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNumberOfInstrumentsHeld_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Partners Interest in Real Estate Partnership, Net of Cash Acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePartnersInterestInRealEstatePartnershipNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combinations [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase in total revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NonCashOrPartNonCashAcquisitionOfRealEstatePreviouslyHeldWithinInvestmentsInRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Cash Or Part Non Cash Acquisition Of Real Estate Previously Held Within Investments In Real Estate Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NonCashOrPartNonCashAcquisitionOfRealEstatePreviouslyHeldWithinInvestmentsInRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non cash or part non cash acquisition of real estate previously held within investments in real estate partnerships.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NonCashOrPartNonCashAcquisitionOfRealEstatePreviouslyHeldWithinInvestmentsInRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of real estate previously held within investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BaybrookEast1BMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Baybrook East 1B.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BaybrookEast1BMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Baybrook East 1B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BaybrookEast1BMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Baybrook East 1B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update and Change in Accounting Principle [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of New Accounting Pronouncements and Changes in Accounting Principles</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AtTheMarketProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">At the market program.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AtTheMarketProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">At the Market Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AtTheMarketProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">At the Market ("ATM") Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Operating Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by operating activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionNameOfAcquiredEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Name of Acquired Entity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionNameOfAcquiredEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Variable Interest Entities [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Variable Interest Entities [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase Price Allocation [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Purchase price allocation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitsLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred units of general partner units, liquidation preferences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitsLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units Liquidation Preference</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitsLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred units liquidation preference.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total lease income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Notes Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Benchmark [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NetProceedsFromSaleOfRealEstateHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net proceed from the sale of real estate that is held for investment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NetProceedsFromSaleOfRealEstateHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Proceeds From Sale Of Real Estate Held For Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NetProceedsFromSaleOfRealEstateHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net proceeds from sale of real estate investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt Securities, Available-for-sale, Unrealized Gain (Loss), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value of securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Distributions to and redemptions of non-controlling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Noncontrolling Interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToMinorityShareholders_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions to limited partners in consolidated partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Derivative liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RightOfUseAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Right of Use Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RightOfUseAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right of Use Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RightOfUseAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right of Use Assets, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Hierarchy and NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NoncontrollingInterestExchangeableOperatingPartnershipUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Noncontrolling Interest Exchangeable Operating Partnerships Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NoncontrollingInterestExchangeableOperatingPartnershipUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest Exchangeable Operating Partnership Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NoncontrollingInterestExchangeableOperatingPartnershipUnitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interests Exchangeable Operating Partnership Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StoneBridgeCrossingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stone Bridge Crossing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StoneBridgeCrossingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stone Bridge Crossing [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StoneBridgeCrossingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stone Bridge Crossing [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmortizationOfAboveAndBelowMarketAndTenantLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amortization of above and below market and tenant leases.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmortizationOfAboveAndBelowMarketAndTenantLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization Of Above And Below Market And Tenant Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmortizationOfAboveAndBelowMarketAndTenantLeases_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Above/below market rent and tenant rent inducement amortization, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income before equity in income of investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Measurements, Recurring [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseVariableLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Variable Lease Income</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesACumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">6.25% Series A Cumulative Redeemable Preferred Stock [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesACumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series A Cumulative Redeemable Preferred Stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesACumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AboveMarketLeasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Above Market Leases [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AboveMarketLeasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Above Market Leases [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Maturities of Long-term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Maturities of Long-Term Debt [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAcquiredInPlaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases, Acquired-in-Place [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAcquiredInPlaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leases, Acquired-in-Place [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BelowMarketLeasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Below-Market Leases [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BelowMarketLeasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Below-Market Leases [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BelowMarketLeasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Below-market leases.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Receivable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes receivable, fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForExchangeableOperatingPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock issued for exchangeable operating partnership units.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForExchangeableOperatingPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Issued for Exchangeable Operating Partnership Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForExchangeableOperatingPartnershipUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued for exchangeable operating partnership units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Merger One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Merger Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Merger One.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Merger One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exchangeable operating partnership units issued for acquisition of real estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of exchangeable operating partnership value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Issuance of exchangeable operating partnership units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfExchangeableOperatingPartnershipValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of exchangeable operating partnership units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Common shares repurchased through share repurchase program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common units repurchased through share repurchase program</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Repurchase of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Major Class Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite-Lived Intangible Assets, Major Class Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramPeriodInForce1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchase Program, Period in Force</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramPeriodInForce1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock repurchase program period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Earnings Per Share Basic By Common Class [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeferredLeasingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Deferred Leasing Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeferredLeasingFees_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred leasing costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleStraightLineRent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of lease revenue determined to be uncollectible straight line rent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleStraightLineRent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amount Of Lease Revenue Determined To Be Uncollectible Straight Line Rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleStraightLineRent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Uncollectible straight-line rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Stock exchanged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of preferred stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Acquisitions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partners' Capital Account, Units Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited partner units, issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssued1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock exchanged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssued1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mortgages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mortgages [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredPublicAndPrivateNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unsecured public and private notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredPublicAndPrivateNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Public And Private Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredPublicAndPrivateNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured public and private notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Accounts Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NumberOfRealEstatePropertiesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of Real Estate Properties Sold During the period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NumberOfRealEstatePropertiesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Real Estate Properties Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NumberOfRealEstatePropertiesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of real estate properties sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited partners' common units, 1,099,516 and 1,107,454 units issued and outstanding at June 30, 2024 and December 31, 2023 respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partners' Capital Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Limited Partners' Capital Account, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ProceedsFromPropertyInsuranceCasualtyClaims_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from property insurance casualty claims.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ProceedsFromPropertyInsuranceCasualtyClaims_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Property Insurance Casualty Claims</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ProceedsFromPropertyInsuranceCasualtyClaims_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from property insurance casualty claims</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfAboveAndBelowMarketLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of above and below Market Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfAboveAndBelowMarketLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of above and below market lease intangibles, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfAboveAndBelowMarketLeases_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accretion of above and below market lease intangibles, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesByMajorClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite Lived Intangible Liabilities By Major Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesByMajorClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite Lived Intangible Liabilities By Major Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesByMajorClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Finite lived intangible liabilities by major class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation, State or Country Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredStockParOrStatedValuePerUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value per units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredStockParOrStatedValuePerUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredStockParOrStatedValuePerUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred stock, par or stated value per units.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddlePropertiesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">UBP Acquisition [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddlePropertiesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Urstadt Biddle Properties, Inc. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddlePropertiesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Urstadt Biddle Properties, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Businesses, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Preferred stock dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preferred unit distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock dividends</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock Dividends, Income Statement Impact</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DistributionsPayableToRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions to investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DistributionsPayableToRealEstatePartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distributions Payable to Real Estate Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Capitalized, Investing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capitalized interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other comprehensive income attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other comprehensive income (loss) attributable to noncontrolling interests</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateHeldforsale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate, Held-for-Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateHeldforsale_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Assets associated with real estate assets held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateHeldforsale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Properties held for sale, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Goodwill, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Goodwill, Ending balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Goodwill, Beginning balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockDistributedOutOfTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock distributed out of rabbi trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockDistributedOutOfTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Distributed Out Of Trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockDistributedOutOfTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution of stock held in trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfNotesPayable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayment of notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RepaymentOfFixedRateOfUnsecuredNotes_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayment of fixed rate unsecured notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RepaymentOfFixedRateOfUnsecuredNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayment of Fixed Rate of Unsecured Notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RepaymentOfFixedRateOfUnsecuredNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Repayment of fixed rate of unsecured notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduledPrincipalPaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Scheduled principal payments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduledPrincipalPaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scheduled Principal Payments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduledPrincipalPaymentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Scheduled Principal Payments [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock repurchased and retired, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock repurchased and retired during period, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchased and Retired During Period, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable price per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Redemption Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Other Comprehensive Income (Loss), Net of Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated other comprehensive income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Benchmark [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ComponentsOfTenantAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of components of tenant and other receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ComponentsOfTenantAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Components Of Tenant And Other Receivables Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ComponentsOfTenantAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Components Of Tenant And Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts and Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Tenant and other receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), Nonoperating, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNonoperatingNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest expense, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument interest rate stated percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Coupon rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AcquiredLeaseIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Acquired lease intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AcquiredLeaseIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquired Lease Intangible Assets [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AcquiredLeaseIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired Lease Intangible Assets, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentDividendsOrDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Equity Method Investment, Distribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentDividendsOrDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution of earnings from investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling interests:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred units, issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesKPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series K Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesKPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series K preferred stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesHPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series H Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Intangible Assets/Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distribution rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffMarketLeaseUnfavorable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired lease intangible liabilities, less accumulated amortization of $208,900 and $211,067 at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffMarketLeaseUnfavorable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Off-Market Lease, Unfavorable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssetsAndInvestmentsInUnconsolidatedProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real estate assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssetsAndInvestmentsInUnconsolidatedProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Real Estate Assets and Investments In Unconsolidated Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssetsAndInvestmentsInUnconsolidatedProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed real estate assets and investments in unconsolidated properties.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedRepurchasedForTaxesWithheldForStockBasedCompensationNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Issued Repurchased For Taxes Withheld For Stock Based Compensation, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedRepurchasedForTaxesWithheldForStockBasedCompensationNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common Stock issued repurchased for taxes withheld for stock based compensation, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedRepurchasedForTaxesWithheldForStockBasedCompensationNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock repurchased for taxes withheld for stock based compensation, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring and Nonrecurring [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net decrease in cash and cash equivalents and restricted cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Equity Method Investment, Distribution, Return of Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Return of capital from investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt and Equity Securities, Gain (Loss), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and Equity Securities, Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesGainLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Realized and unrealized gain on investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash Investing and Financing Items [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental disclosure of non-cash transactions:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investments, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net real estate investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BelowMarketGroundRentLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Below Market Ground Rent Lease [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BelowMarketGroundRentLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Below Market Ground Rent Lease [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BelowMarketGroundRentLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Below market ground rent lease.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">California [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CALIFORNIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred units $0.01 par value per unit, 30,000,000 units authorized; 9,000,000 units issued and outstanding, in the aggregate, in Series A and Series B at June 30, 2024 and December 31, 2023 with liquidation preference of $25 per unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Preferred Partners' Capital Accounts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsPreferredPartnersCapitalAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Preferred Units, Preferred Partners' Capital Accounts, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other Comprehensive Income Abstract.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_GlenwoodGreenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Glenwood green</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_GlenwoodGreenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Glenwood Green [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AventuraSquareGLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aventura Square GL [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AventuraSquareGLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aventura Square G L [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AventuraSquareGLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aventura Square GL.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Balance Sheet Fair Values</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, by Balance Sheet Grouping [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfLeaseIncomeAndTenantReceivablesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of lease income and tenant receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfLeaseIncomeAndTenantReceivablesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Lease Income And Tenant Receivables [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfLeaseIncomeAndTenantReceivablesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of management, transaction, and other fees [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfUnitsInOperatingPartnershipInExchangeForCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of exchangeable operating partnership, units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfUnitsInOperatingPartnershipInExchangeForCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance Of Units In Operating Partnership In Exchange For Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfUnitsInOperatingPartnershipInExchangeForCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of units in our operating partnership in exchange for common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Information [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Per common unit - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership Unit, Basic, Net of Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income per common share - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DeferredCostsNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred costs, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DeferredCostsNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Costs, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DeferredCostsNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Costs, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CorralHollowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Corral Hollow.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CorralHollowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corral Hollow [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CorralHollowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Coral Hollow [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleAndChargedToLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of lease revenue determined to be uncollectible and charged to lease income.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleAndChargedToLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amount Of Lease Revenue Determined To Be Uncollectible And Charged To Lease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleAndChargedToLeaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Uncollectible amounts billable in lease (loss) income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EquityAndCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity and capital.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EquityAndCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity And Capital [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">General and Administrative Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfLeaseIncomeAndTenantReceivablesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of lease income and tenant receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfLeaseIncomeAndTenantReceivablesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Lease Income And Tenant Receivables [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ScheduleOfLeaseIncomeAndTenantReceivablesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Lease Income And Tenant Receivables [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liquidation Preference</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Liquidation Preference</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares/units outstanding for basic EPS/EPU</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred units, authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredUnitsAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Units, Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsLeasingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred leasing costs, less accumulated amortization of $126,867 and $124,107 at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsLeasingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Costs, Leasing, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsLeasingNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Costs, Leasing, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Properties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Financing Activities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from financing activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Extinguishment of Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Early extinguishment of debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on early extinguishment of debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandAndLandImprovements_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Land and Land Improvements, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandAndLandImprovements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land and Land Improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandAndLandImprovements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Land and improvemnets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionsPaidToPreferredUnitHolders_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Preferred unit distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionsPaidToPreferredUnitHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred unit distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionsPaidToPreferredUnitHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distributions Paid To Preferred Unit Holders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DistributionsPaidToPreferredUnitHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Distributions paid to preferred unit holders.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Equity Method Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity in income of investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Equity in income of investments in real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LessorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lessor disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LessorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LessorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessor [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Costs and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred financing costs, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsIssuedOfCommonStockIssuedByParentNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common units issued as a result of common stock issued by Parent Company, net of redemptions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsIssuedOfCommonStockIssuedByParentNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Units Issued Of Common Stock Issued By Parent Net Of Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsIssuedOfCommonStockIssuedByParentNetOfIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common units issued as a result of common stock issued by Parent Company, net of issuance costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letters of Credit Outstanding, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Letters of Credit Outstanding, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfTreasuryStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Treasury Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfTreasuryStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of treasury stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForPartnershipUnitsExchanged_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued by Parent Company for partnership units exchanged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForPartnershipUnitsExchanged_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock issued for partnership units exchanged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForPartnershipUnitsExchanged_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Issued For Partnership Units Exchanged</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonStockIssuedForPartnershipUnitsExchanged_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock issued for partnership units exchanged.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesHeldInEmployeeTrustShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Held in Employee Trust, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesHeldInEmployeeTrustShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury stock, shares held at cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Dividend Reinvestment Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued under dividend reinvestment plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock issued under dividend reinvestment plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase Price Allocation [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PurchasePriceAllocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Purchase price allocation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Merger Agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MergerAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Merger Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockDeferredIntoTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vested Stock deferred into rabbi trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockDeferredIntoTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Deferred Into Trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockDeferredIntoTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contribution of stock awards into trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notes payable assumed in acquisition, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash or Part Noncash Acquisition, Debt Assumed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mortgage loans assumed by Company with the acquisition of real estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OperatingLeasesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OperatingLeasesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Leases Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OperatingLeasesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating leases disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasedAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Leased Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasedAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Leased Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesInDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Properties in development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesInDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Properties in Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesInDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed properties in development.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Operating Income (Expense), Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Schedule of Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Debt [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Debt Net of Unamortized Debt Premium (Discount) and Debt Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitDistributions_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Preferred unit distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred unit distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Unit Distributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PreferredUnitDistributions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred unit distributions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Treasury stock at cost, 468,068 and 448,140 shares held at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury stock at cost, 468,068 and 448,140 shares held at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Treasury Stock, Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Discontinued Operations and Disposal Groups [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredRevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unsecured revolving credit facility Member.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredRevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UnsecuredRevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Revolving Credit Facility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ManagementtransactionandotherfeeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Management, transaction, and other fee [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ManagementtransactionandotherfeeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Managementtransactionandotherfee [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ManagementtransactionandotherfeeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management, transaction, and other fee [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes payable, net, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentGainLossReclassifiedFromAociIntoIncomeEffectivePortionStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Net Income (Loss) Operating Partnerships, Redeemable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Exchangeable operating partnership units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (decrease) in net income attributable to common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for income taxes, net of refunds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income Taxes Paid, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Paid, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LiborMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">LIBOR.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LiborMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">LIBOR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LiborMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LIBOR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update and Change in Accounting Principle [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingCostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property operating expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingCostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating Costs and Expenses, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingCostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Costs and Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends paid to preferred shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Preferred Stock and Preference Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PartnershipInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partnership Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PartnershipInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partnership Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes payable, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Notes Payable, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableToBanksMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable to Banks [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableToBanksMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Payable to Banks [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsMinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Ordinary Dividends, Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsMinorityInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions to exchangeable operating partnership unit holders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right of use assets obtained in exchange for new operating lease liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right-of-Use Asset Obtained in Exchange for Operating Lease Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Acquiree [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition, Acquiree</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NapervillePlazaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Naperville plaza</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NapervillePlazaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Naperville Plaza [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_FL_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Florida [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_FL_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FLORIDA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Percentage of Voting Interests Acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EarningsPerShareAndUnitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Earnings Per Share and Unit [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_EarningsPerShareAndUnitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share And Unit [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PropertymanagementservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Property management services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PropertymanagementservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Propertymanagementservices [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PropertymanagementservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property management services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesTypeLeaseNetInvestmentInLeaseSale_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of leased asset in exchange for net investment in sales-type lease</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesTypeLeaseNetInvestmentInLeaseSale_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sales-type Lease, Net Investment in Lease, Sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Lines of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Lines of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from unsecured credit facilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leases [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount reclassified from accumulated other comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amount reclassified from accumulated other comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Act File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total partners' capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Partners' Capital, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Partners' Capital, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityExpirationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfUnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured public debt paid off</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfUnsecuredDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Unsecured Debt</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RegencyCentersLimitedPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Upper limit of the provided range.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RegencyCentersLimitedPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Regency Centers Limited Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RegencyCentersLimitedPartnershipMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffMarketFavorableLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Off-Market Favorable Lease [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OffMarketFavorableLeaseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Off-Market Favorable Lease [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionNumberOfPreferredSharesIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionNumberOfPreferredSharesIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition Number Of Preferred Shares Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionNumberOfPreferredSharesIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business Acquisition Number Of Preferred Shares Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DiscontinuedOperationsHeldforsaleMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Discontinued Operations, Held-for-Sale [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DiscontinuedOperationsHeldforsaleMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets Held for Sale [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LeasingservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Leasing services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LeasingservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leasingservices [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LeasingservicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leasing services [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash, cash equivalents, and restricted cash, including $6,109 and $6,383 of restricted cash at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents and restricted cash at end of the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash and cash equivalents and restricted cash at beginning of the period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ExchangeableOperatingPartnershipUnitsAggregateRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Exchangeable Operating Partnership Units Aggregate Redemption Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ExchangeableOperatingPartnershipUnitsAggregateRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exchangeable Operating Partnership Units Aggregate Redemption Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ExchangeableOperatingPartnershipUnitsAggregateRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exchangeable operating partnership units aggregate redemption value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partner [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedPartnerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partner [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesReceivableAtInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Notes receivable at interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesReceivableAtInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Receivable at Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesReceivableAtInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities assumed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Assumed, Net of Discounts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupClassificationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Classification [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateCashFlowHedgeAssetAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Cash Flow Hedge Asset at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateCashFlowHedgeAssetAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStockCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Common Stock, Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStockCash_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash dividends declared - common stock/unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_InvestmentsInSalesTypeLeaseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments in sales-type lease, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_InvestmentsInSalesTypeLeaseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments in Sales-type Lease, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_InvestmentsInSalesTypeLeaseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments in Sales-type Lease, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financing Receivable, after Allowance for Credit Loss, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, after Allowance for Credit Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StraightLineRent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Straight Line Rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StraightLineRent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Straight-line rent receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NonControllingInterestAssumedInAcquisitionFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non controlling interest assumed in acquisition fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NonControllingInterestAssumedInAcquisitionFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Controlling Interest Assumed in Acquisition Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NonControllingInterestAssumedInAcquisitionFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non controlling interest assumed in acquisition fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CedarCommonsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cedar Commons.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CedarCommonsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cedar Commons [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CedarCommonsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cedar Commons [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Debt maturing over the next twelve months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners' Capital Account, Units Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccountUnitsIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General partner units, issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock $0.01 par value per share, 30,000,000 shares authorized; 9,000,000 shares issued and outstanding, in the aggregate, in Series A and Series B at June 30, 2024 and December 31, 2023 with liquidation preference of $25 per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfPurchasePriceOfProperty_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Purchase Price of Property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfPurchasePriceOfProperty_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of Purchase Price of Property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfPurchasePriceOfProperty_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of purchase price of property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherRealEstateAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other real estate assets, net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherRealEstateAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Real Estate Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OtherRealEstateAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtWeightedAverageContractualInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt weighted average contractual interest rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtWeightedAverageContractualInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Weighted Average Contractual Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtWeightedAverageContractualInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt, Weighted Average Contractual Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partner Capital Components [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnerCapitalComponentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partner Capital Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Transaction Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per Share and Unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeniorUnsecuredDebtDueInTwoThousandThirtyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Senior unsecured debt due in two thousand thirty four.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeniorUnsecuredDebtDueInTwoThousandThirtyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Senior Unsecured Debt due in Two Thousand Thirty Four [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeniorUnsecuredDebtDueInTwoThousandThirtyFourMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Senior Unsecured Notes Due in 2034 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Benchmark [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromCollectionOfLoansReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Collection of Loans Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromCollectionOfLoansReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collection of notes receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsRepurchasedAndRetiredAsResultOfCommonStockRepurchasedAndRetiredByParentCompany_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsRepurchasedAndRetiredAsResultOfCommonStockRepurchasedAndRetiredByParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Units Repurchased And Retired As Result Of Common Stock Repurchased And Retired By Parent Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitsRepurchasedAndRetiredAsResultOfCommonStockRepurchasedAndRetiredByParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common units repurchased and retired as a result of common stock repurchased and retired by parent company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBuildingAndBuildingImprovements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Building and Building Improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentBuildingAndBuildingImprovements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Buildings and improvements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite Lived Intangible Liabilities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite Lived Intangible Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">[Domain] for Finite-Lived Intangible Liabilities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndOtherReceivablesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revenues and other receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndOtherReceivablesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues And Other Receivables Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndOtherReceivablesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues and Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncomeTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Lease Income [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncomeTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Lease, Lease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Distributions in excess of net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions in excess of net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Distributions in Excess of Net Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accumulated Distributions in Excess of Net Income, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investment Property, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real estate assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement Location [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentVariableRateAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt instrument variable rate adjustment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentVariableRateAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Variable Rate Adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentVariableRateAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable rate adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtWeightedAverageEffectiveInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt weighted average effective interest rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtWeightedAverageEffectiveInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Weighted Average Effective Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtWeightedAverageEffectiveInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt, Weighted Average Effective Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireLoansReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Loans Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireLoansReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Issuance of notes receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireLoansReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of note receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FivePointEightSevenFivePercentageSeriesBPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">5.875% Series B Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FivePointEightSevenFivePercentageSeriesBPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Five Point Eight Seven Five Percentage Series B Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FivePointEightSevenFivePercentageSeriesBPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Five point eight seven five percentage series B preferred stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesHCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series H Cumulative Redeemable Preferred Stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesHCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series H Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesHCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">6.25% Series H Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShopsAtCountyCenterCapitalOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shops at County Center Capital One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShopsAtCountyCenterCapitalOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shops at County Center Capital One.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term Debt, Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddleClassACommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Urstadt Biddle Class A common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddleClassACommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Urstadt Biddle Class A common stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_UrstadtBiddleClassACommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Urstadt Biddle Class A common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SunVetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sun vet.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SunVetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sun Vet [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SunVetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SunVet [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Inputs Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitExchangedForCommonStockOfParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common units exchanged for common stock of Parent Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitExchangedForCommonStockOfParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Unit Exchanged For Common Stock Of Parent Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_CommonUnitExchangedForCommonStockOfParentCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common unit exchanged for common stock of Parent Company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partner [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General Partner Preferred and Common Units [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Depletion and Amortization, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated amortization of acquired lease intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Distributions in Excess of Net Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distributions in Excess of Net Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership percentage of outstanding common partnership units</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AcquiredLeaseIntangibleLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquired Lease Intangible Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AcquiredLeaseIntangibleLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Acquired lease intangible liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AcquiredLeaseIntangibleLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired Lease Intangible Liabilities, Net [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Contractual Term [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseContractualTermAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease Contractual Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Interest Rate Derivatives [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Interest Rate Derivatives Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Notes Receivables [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Receivables [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NotesReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Proceeds from Sale, Real Estate, Held-for-Investment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale, Real Estate, Held-for-Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of real estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShopsAtColumbiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shops at Columbia.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShopsAtColumbiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shops at Columbia [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_ShopsAtColumbiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shops at the Columbia [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsPerShareCashPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock dividend per share paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendsPerShareCashPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Dividends, Per Share, Cash Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from investing activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketable Security, Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateSwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest Rate Swaps [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestRateSwapMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Swap [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured credit facilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term Line of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total credit facilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Line of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Payable and Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and other liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other fees [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MortgageLoanMaturitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Mortgage loan maturities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MortgageLoanMaturitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mortgage Loan Maturities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_MortgageLoanMaturitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mortgage Loan Maturities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Dividends, Per Share, Declared</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock/unit per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock dividend declared, per share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Closing stock price on August 17, 2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition, Share Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandSubjectToGroundLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Land Subject to Ground Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LandSubjectToGroundLeases_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross lease area</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, liquidation preferences</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Liquidation Preference Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivableTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivableTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Property Ownership [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstatePropertiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate Property Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net real estate investments:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investments, Net [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PaymentsForProceedsFromDividendsOnTradingSecuritiesHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payments for (proceeds from) dividends on trading securities held in trust.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PaymentsForProceedsFromDividendsOnTradingSecuritiesHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments For Proceeds From Dividends On Trading Securities Held In Trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PaymentsForProceedsFromDividendsOnTradingSecuritiesHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Dividends on investment securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockBasedCompensationCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock based compensation capitalized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockBasedCompensationCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Based Compensation Capitalized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_StockBasedCompensationCapitalized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation capitalized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Repurchase Program, Remaining Authorized Repurchase Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock repurchased remaining authorized value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Shares, Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Shares, Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Finite-Lived Intangible Liabilities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite Lived Intangible Liabilities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FiniteLivedIntangibleLiabilitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Off-Market Lease, Unfavorable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-Based Compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionLocationCityAndState_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business Acquisition Location, City and State</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionLocationCityAndState_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition Location City And State</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionLocationCityAndState_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City/State</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FixedRateMortgageLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fixed rate mortgage loans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FixedRateMortgageLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fixed Rate Mortgage Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_FixedRateMortgageLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed Rate Mortgage Loans [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_WeightedAverageAccretionPeriodOfIntangibleLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Accretion Period of Intangible Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_WeightedAverageAccretionPeriodOfIntangibleLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Accretion Period Of Intangible Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_WeightedAverageAccretionPeriodOfIntangibleLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average accretion period of intangible liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combinations Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of UBP</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInLimitedPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited partners' interests in consolidated partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestInLimitedPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest in Limited Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LineOfCreditExtendedMaturityPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit extended maturity period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LineOfCreditExtendedMaturityPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Extended Maturity Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LineOfCreditExtendedMaturityPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit extended maturity period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfLimitedPartnershipInterestSold_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of limited partnership interest sold.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfLimitedPartnershipInterestSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Limited Partnership Interest Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PercentageOfLimitedPartnershipInterestSold_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Percent interest sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement Location [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination and Asset Acquisition [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockDividend_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Stock Dividend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockDividend_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued for dividend reinvestment in trust</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherPrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Prepaid Expense, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherPrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid and other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LeaseLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Lease Liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LeaseLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of Credit [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Real Estate Investment Property, at Cost, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Investment Property, at Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateInvestmentPropertyAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real estate assets, at cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value by Liability Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Investing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfPreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred units issued as a result of preferred stock issued by Parent Company, net of issuance costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfPreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance Of Preferred Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_IssuanceOfPreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance of preferred stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupClassificationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Classification [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative, Notional Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeNotionalAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notional amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income attributable to common shareholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income attributable to common shareholders - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnsecuredDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Debt [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInvestmentsInUnconsolidatedProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments in unconsolidated real estate partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInvestmentsInUnconsolidatedProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Investments in Unconsolidated Properties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInvestmentsInUnconsolidatedProperties_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed investments in unconsolidated properties.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionDateOfAcquisitionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition, Date of Acquisition Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionDateOfAcquisitionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset acquisition agreement date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Cash Provided by (Used in) Financing Activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Assets [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccountsPayableAndOtherLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accounts payable and other liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccountsPayableAndOtherLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable And Other Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_AccountsPayableAndOtherLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts Payable and Other Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Restricted Cash and Cash Equivalents, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash and cash equivalent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Balance Sheet Location [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance Sheet Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtEffectiveFixedRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt Effective Fixed Rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtEffectiveFixedRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Effective Fixed Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtEffectiveFixedRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, effective fixed interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateTaxExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate Tax Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealEstateTaxExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real estate taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeographicConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographic Concentration Risk [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Rate [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartiallyOwnedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partially Owned Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartiallyOwnedPropertiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Partially Owned Properties [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireMarketableSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments to Acquire Marketable Securities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireMarketableSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Marketable Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireMarketableSecurities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisition of investment securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">APIC, Share-Based Payment Arrangement, Other, Increase for Cost Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred compensation plan, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndTenantAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revenues and tenant and other receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndTenantAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues and Tenant and Other Receivables [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RevenuesAndTenantAndOtherReceivablesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues and Tenant and Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reclassification adjustment of derivative instruments included in net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Reclassification adjustment of derivative instruments included in net income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other expense, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total other expense, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Expenditures Incurred but Not yet Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accrued capital expenditures</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LettersOfCreditMaximumBorrowingCapacityUnderLine_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Letters of credit maximum borrowing capacity under line.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LettersOfCreditMaximumBorrowingCapacityUnderLine_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Letters Of Credit Maximum Borrowing Capacity Under Line</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LettersOfCreditMaximumBorrowingCapacityUnderLine_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity, Consolidated, Carrying Amount, Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Variable interest entity, consolidated, carrying amount, liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RegcalLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">RegCal, Limited Liability Company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RegcalLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">RegCal, Limited Liability Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_RegcalLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RegCal, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionTotalValueOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total value of common stock issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionTotalValueOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total value of common stock issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionTotalValueOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisition Total Value of Common Stock Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_BusinessAcquisitionTotalValueOfCommonStockIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business Acquisition Total Value of Common Stock Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesBCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series B Cumulative Redeemable Preferred Stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesBCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series B Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SeriesBCumulativeRedeemablePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">5.875% Series B Cumulative Redeemable Preferred Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total shareholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders' Equity Attributable to Parent, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders' Equity Attributable to Parent, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired Finite-lived Intangible Assets, Weighted Average Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SiennaPhaseOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sienna phase one.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SiennaPhaseOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sienna Phase One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_SiennaPhaseOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sienna Phase 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SOFR [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendPayableDateToBePaidDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends payable date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendPayableDateToBePaidDayMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends Payable, Date to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Entities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income attributable to the Company/ Partnership</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tenant Receivables.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tenant Receivables [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TenantReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tenant Receivables [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other expense, net:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentSustainabilityAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt instrument sustainability sdjustment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentSustainabilityAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Sustainability Adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentSustainabilityAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument sustainability adjustment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt and Equity Securities, Unrealized Gain (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt and Equity Securities, Unrealized Gain (Loss), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading securities, change in unrealized holding gain (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentInterestRateParValuePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt Instrument interest rate par value percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentInterestRateParValuePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument Interest Rate Par Value Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_DebtInstrumentInterestRateParValuePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of debt par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TimingOfSatisfactionOfPerformanceObligationsDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Timing of satisfaction of performance obligations description.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TimingOfSatisfactionOfPerformanceObligationsDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Timing of satisfaction of performance obligations description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_TimingOfSatisfactionOfPerformanceObligationsDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Timing of satisfaction of performance obligations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash, accounts receivable and other assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average common shares/units outstanding for diluted EPS/EPU</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LongTermDebtMaturitiesRepaymentsOfPrincipalThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Long term debt maturities repayments of principal thereafter.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LongTermDebtMaturitiesRepaymentsOfPrincipalThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long Term Debt Maturities Repayments Of Principal Thereafter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_LongTermDebtMaturitiesRepaymentsOfPrincipalThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Beyond 5 Years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NoncontrollingInterestsInLimitedPartnersInterestInConsolidatedPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Noncontrolling Interests Limited Partners' Interest in Consolidated Partnership [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NoncontrollingInterestsInLimitedPartnersInterestInConsolidatedPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interests In Limited Partners Interest In Consolidated Partnerships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_NoncontrollingInterestsInLimitedPartnersInterestInConsolidatedPartnershipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit Facility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OldTownSquareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Old Town Square [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_OldTownSquareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Old Town Square [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Continuing Operations, Per Outstanding Share, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Per Basic Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income per common share - basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PaymentsForProceedsFromAcquisitionOfOperatingRealEstate_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisition of operating real estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PaymentsForProceedsFromAcquisitionOfOperatingRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payments for (Proceeds from) acquisition of operating real estate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="reg_PaymentsForProceedsFromAcquisitionOfOperatingRealEstate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments For Proceeds From Acquisition of Operating Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets acquired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerUnitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income attributable to common unit holders:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerUnitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Unit [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General partner's common units, 181,493,494 and 184,581,070 units issued and outstanding at June 30, 2024 and December 31, 2023, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General Partners' Capital Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralPartnersCapitalAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">General Partners' Capital Account, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Derivative Asset, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Derivative assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockCash_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash dividends declared - preferred stock/unit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsPreferredStockCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash dividends declared - preferred stock/unit</link:label>
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  <xsd:element id="reg_NetProceedsFromSaleOfRealEstateHeldForInvestment" name="NetProceedsFromSaleOfRealEstateHeldForInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
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  <xsd:element id="reg_ExchangeableOperatingPartnershipUnitsAggregateRedemptionValue" name="ExchangeableOperatingPartnershipUnitsAggregateRedemptionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
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  <xsd:element id="reg_InvestmentsInRealEstatePartnerships" name="InvestmentsInRealEstatePartnerships" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_AccruedCommonStockRepurchaseInAccountsPayableAndOtherLiabilities" name="AccruedCommonStockRepurchaseInAccountsPayableAndOtherLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_NumberOfRealEstatePropertiesSold" name="NumberOfRealEstatePropertiesSold" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_ScheduleOfLeaseIncomeAndTenantReceivablesTable" name="ScheduleOfLeaseIncomeAndTenantReceivablesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="reg_ScheduleOfWeightedAverageAmortizationPeriodOfIntangibleAssetsAndLiabilitiesTableTextBlock" name="ScheduleOfWeightedAverageAmortizationPeriodOfIntangibleAssetsAndLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
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  <xsd:element id="reg_MortgageLoanMaturitiesMember" name="MortgageLoanMaturitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="reg_SeriesHCumulativeRedeemablePreferredStockMember" name="SeriesHCumulativeRedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="reg_NotesReceivableAtInterestRate" name="NotesReceivableAtInterestRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
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  <xsd:element id="reg_DateOfCallableByCompany" name="DateOfCallableByCompany" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_TenantsSecurityEscrowDepositsAndPrepaidRentMember" name="TenantsSecurityEscrowDepositsAndPrepaidRentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_CommonStockRemainingAvailableForIssuance" name="CommonStockRemainingAvailableForIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
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  <xsd:element id="reg_StoneBridgeCrossingMember" name="StoneBridgeCrossingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PercentageOfVariableRateMortgageLoansFixedThroughInterestRateSwaps" name="PercentageOfVariableRateMortgageLoansFixedThroughInterestRateSwaps" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
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  <xsd:element id="reg_CommonUnitsRepurchasedAndRetiredAsResultOfCommonStockRepurchasedAndRetiredByParentCompany" name="CommonUnitsRepurchasedAndRetiredAsResultOfCommonStockRepurchasedAndRetiredByParentCompany" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
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  <xsd:element id="reg_FivePointEightSevenFivePercentageSeriesBPreferredStockMember" name="FivePointEightSevenFivePercentageSeriesBPreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="reg_RisksAndUncertaintiesPolicyPolicyTextBlock" name="RisksAndUncertaintiesPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_CommonStockIssuedForExchangeableOperatingPartnershipUnits" name="CommonStockIssuedForExchangeableOperatingPartnershipUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_ProceedsFromPropertyInsuranceCasualtyClaims" name="ProceedsFromPropertyInsuranceCasualtyClaims" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
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  <xsd:element id="reg_CashCashEquivalentsAndRestrictedCashMember" name="CashCashEquivalentsAndRestrictedCashMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInvestmentsInUnconsolidatedProperties" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInvestmentsInUnconsolidatedProperties" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssets" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedRealEstateAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_TenantAndOtherReceivablesNetMember" name="TenantAndOtherReceivablesNetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_RevenuesAndTenantAndOtherReceivablesTableTextBlock" name="RevenuesAndTenantAndOtherReceivablesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_ExchangeableOperatingPartnershipUnitConvertedToCommonStockOfParentCompany" name="ExchangeableOperatingPartnershipUnitConvertedToCommonStockOfParentCompany" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_BusinessAcquisitionGrossPurchasePrice" name="BusinessAcquisitionGrossPurchasePrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_BusinessAcquisitionTotalValueOfCommonStockIssued" name="BusinessAcquisitionTotalValueOfCommonStockIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_CorralHollowMember" name="CorralHollowMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_VariableRateDebtMember" name="VariableRateDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_OtherRealEstateAssetsNet" name="OtherRealEstateAssetsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_ReallocationOfEquityUponAcquisitionOfNonControllingInterest" name="ReallocationOfEquityUponAcquisitionOfNonControllingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_AppleValleyMember" name="AppleValleyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AtTheMarketProgramMember" name="AtTheMarketProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PreferredUnitDistributions" name="PreferredUnitDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_SharesIssuedAndOutstanding" name="SharesIssuedAndOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_RegcalLimitedLiabilityCompanyMember" name="RegcalLimitedLiabilityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_SeriesKCumulativeRedeemablePreferredStockMember" name="SeriesKCumulativeRedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PaymentsForProceedsFromAcquisitionOfOperatingRealEstate" name="PaymentsForProceedsFromAcquisitionOfOperatingRealEstate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_SecuredOvernightFinancingRateSofrMember" name="SecuredOvernightFinancingRateSofrMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_RevenuesAndOtherReceivablesTableTextBlock" name="RevenuesAndOtherReceivablesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_AventuraSquareGLMember" name="AventuraSquareGLMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_BaybrookEast1BMember" name="BaybrookEast1BMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_UbSubICommonStockMember" name="UbSubICommonStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleAndChargedToLeaseIncome" name="AmountOfLeaseRevenueDeterminedToBeUncollectibleAndChargedToLeaseIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_ShareRepurchasedWeightedAveragePricePerShare" name="ShareRepurchasedWeightedAveragePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_DateOfIssuance" name="DateOfIssuance" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_UrstadtBiddleCommonStockMember" name="UrstadtBiddleCommonStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_UnsecuredPublicAndPrivateNotes" name="UnsecuredPublicAndPrivateNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_IssuanceOfExchangeableOperatingPartnershipValue" name="IssuanceOfExchangeableOperatingPartnershipValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_SunVetMember" name="SunVetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PercentageOfEquityInterestAcquired" name="PercentageOfEquityInterestAcquired" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_BelowMarketGroundRentLeaseMember" name="BelowMarketGroundRentLeaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_CommonUnitsRepurchasedOfCommonStockByParentNetOfIssuance" name="CommonUnitsRepurchasedOfCommonStockByParentNetOfIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_DebtInstrumentInterestRateParValuePercentage" name="DebtInstrumentInterestRateParValuePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_LettersOfCreditMaximumBorrowingCapacityUnderLine" name="LettersOfCreditMaximumBorrowingCapacityUnderLine" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_NotesReceivablesMember" name="NotesReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_SeriesKPreferredStockMember" name="SeriesKPreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_CedarCommonsMember" name="CedarCommonsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_SiennaPhaseOneMember" name="SiennaPhaseOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AccountingStandardsUpdate202307Member" name="AccountingStandardsUpdate202307Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_LiborMember" name="LiborMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_ComponentsOfTenantAndOtherReceivablesTableTextBlock" name="ComponentsOfTenantAndOtherReceivablesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_KingsParkShoppingCenterMember" name="KingsParkShoppingCenterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_FiniteLivedIntangibleLiabilitiesAxis" name="FiniteLivedIntangibleLiabilitiesAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_ProceedsFromIssuanceOfFixedRateUnsecuredNotesNetOfDebtDiscount" name="ProceedsFromIssuanceOfFixedRateUnsecuredNotesNetOfDebtDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_StockBasedCompensationCapitalized" name="StockBasedCompensationCapitalized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_CommonUnitExchangedForCommonStockOfParentCompany" name="CommonUnitExchangedForCommonStockOfParentCompany" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_EquityAndCapitalAbstract" name="EquityAndCapitalAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PreferredStockParOrStatedValuePerUnits" name="PreferredStockParOrStatedValuePerUnits" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_CompoAcresNorthShoppingCenterMember" name="CompoAcresNorthShoppingCenterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_SeriesACumulativeRedeemablePreferredStockMember" name="SeriesACumulativeRedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_BusinessAcquisitionLocationCityAndState" name="BusinessAcquisitionLocationCityAndState" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_CommonStockIssuedForPartnershipUnitsExchanged" name="CommonStockIssuedForPartnershipUnitsExchanged" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_DebtWeightedAverageEffectiveInterestRate" name="DebtWeightedAverageEffectiveInterestRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_BelowMarketLeasesMember" name="BelowMarketLeasesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_Rule10B51TradingPlanMember" name="Rule10B51TradingPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_IssuanceOfUnitsInOperatingPartnershipInExchangeForCommonStock" name="IssuanceOfUnitsInOperatingPartnershipInExchangeForCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_CumulativeRedeemablePreferredStockMember" name="CumulativeRedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_TenantReceivablesMember" name="TenantReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_UnsecuredRevolvingCreditFacilityMember" name="UnsecuredRevolvingCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_DistributionsPaidToPreferredUnitHolders" name="DistributionsPaidToPreferredUnitHolders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_OffMarketLeaseUnfavorableMember" name="OffMarketLeaseUnfavorableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_DebtInstrumentVariableRateAdjustment" name="DebtInstrumentVariableRateAdjustment" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_PaymentsForProceedsFromDividendsOnTradingSecuritiesHeldInTrust" name="PaymentsForProceedsFromDividendsOnTradingSecuritiesHeldInTrust" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_OldTownSquareMember" name="OldTownSquareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_OtherComprehensiveIncomeAbstract" name="OtherComprehensiveIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_NoncontrollingInterestsInLimitedPartnersInterestInConsolidatedPartnershipsMember" name="NoncontrollingInterestsInLimitedPartnersInterestInConsolidatedPartnershipsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AdjustmentForNoncontrollingInterests" name="AdjustmentForNoncontrollingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_OtherAssetMember" name="OtherAssetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_BusinessAcquisitionNumberOfPreferredSharesIssuance" name="BusinessAcquisitionNumberOfPreferredSharesIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_CommonStockAndPreferredStockAndExchangeableOperatingPartnershipDividendsDeclaredButNotPaid" name="CommonStockAndPreferredStockAndExchangeableOperatingPartnershipDividendsDeclaredButNotPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_FixedRateDebtMember" name="FixedRateDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_MergerTwoMember" name="MergerTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PercentageOfPurchasePriceOfProperty" name="PercentageOfPurchasePriceOfProperty" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_SummaryOfTermsAndConditionsOfPreferredStockOutstandingTableTextBlock" name="SummaryOfTermsAndConditionsOfPreferredStockOutstandingTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_TrdArrExpirationDate" name="TrdArrExpirationDate" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_OtherReceivableMember" name="OtherReceivableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_ScheduleOfShoppingCentersAcquiredOrLandAcquiredOrLeasedForDevelopmentTableTextBlock" name="ScheduleOfShoppingCentersAcquiredOrLandAcquiredOrLeasedForDevelopmentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_VariableRateMortgageLoansMember" name="VariableRateMortgageLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_IssuanceOfPreferredStock" name="IssuanceOfPreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_RepaymentOfFixedRateOfUnsecuredNotes" name="RepaymentOfFixedRateOfUnsecuredNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_SixPointTwoFiveZeroPercentageSeriesAPreferredStockMember" name="SixPointTwoFiveZeroPercentageSeriesAPreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_UrstadtBiddlePropertiesIncMember" name="UrstadtBiddlePropertiesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PartnersCapitalAccountAdjustmentForNoncontrollingInterestsInOperatingPartnership" name="PartnersCapitalAccountAdjustmentForNoncontrollingInterestsInOperatingPartnership" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_BaederwoodShoppesMember" name="BaederwoodShoppesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_FiniteLivedIntangibleLiabilitiesbyMajorClassAxis" name="FiniteLivedIntangibleLiabilitiesbyMajorClassAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_FiniteLivedIntangibleLiabilitiesDomain" name="FiniteLivedIntangibleLiabilitiesDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_UbpAcquisitionMember" name="UbpAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_PropertymanagementservicesMember" name="PropertymanagementservicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AmountOfLeaseRevenueDeterminedToBeUncollectibleStraightLineRent" name="AmountOfLeaseRevenueDeterminedToBeUncollectibleStraightLineRent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_SeriesBCumulativeRedeemablePreferredStockMember" name="SeriesBCumulativeRedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_MergerAgreementMember" name="MergerAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_UrstadtBiddleClassACommonStockMember" name="UrstadtBiddleClassACommonStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AccountsPayableAndOtherLiabilitiesMember" name="AccountsPayableAndOtherLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_NewRule10B51TradingPlanMember" name="NewRule10B51TradingPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_StockConversionRatio" name="StockConversionRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_SeniorUnsecuredDebtDueInTwoThousandThirtyFourMember" name="SeniorUnsecuredDebtDueInTwoThousandThirtyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_AcquiredLeaseIntangibleLiabilitiesMember" name="AcquiredLeaseIntangibleLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_EquityIssuancesCommonStockAuthorizedForIssuance" name="EquityIssuancesCommonStockAuthorizedForIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_WeightedAverageAccretionPeriodOfIntangibleLiabilities" name="WeightedAverageAccretionPeriodOfIntangibleLiabilities" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_NotesPayableMember" name="NotesPayableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_ShopsAtColumbiaMember" name="ShopsAtColumbiaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_NoncontrollingInterestExchangeableOperatingPartnershipUnitsMember" name="NoncontrollingInterestExchangeableOperatingPartnershipUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesHeldForSale" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertiesHeldForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_IssuanceOfExchangeableOperatingPartnershipUnits" name="IssuanceOfExchangeableOperatingPartnershipUnits" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_LineOfCreditExtendedMaturityPeriod" name="LineOfCreditExtendedMaturityPeriod" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="reg_DebtWeightedAverageContractualInterestRate" name="DebtWeightedAverageContractualInterestRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_BusinessCombinationConsiderationTransferredOtherCashPayments" name="BusinessCombinationConsiderationTransferredOtherCashPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_MergerOneMember" name="MergerOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_DebtEffectiveFixedRate" name="DebtEffectiveFixedRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_PurchasePriceAllocationDomain" name="PurchasePriceAllocationDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_ScheduleOfLeaseIncomeAndTenantReceivablesLineItems" name="ScheduleOfLeaseIncomeAndTenantReceivablesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_NonCashOrPartNonCashAcquisitionOfRealEstatePreviouslyHeldWithinInvestmentsInRealEstatePartnerships" name="NonCashOrPartNonCashAcquisitionOfRealEstatePreviouslyHeldWithinInvestmentsInRealEstatePartnerships" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="reg_AssetmanagementservicesMember" name="AssetmanagementservicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="reg_GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes1" name="GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="reg_BusinessAcquisitionNumberOfSharesOfCommonStockIssued" name="BusinessAcquisitionNumberOfSharesOfCommonStockIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="reg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
</xsd:schema>
