Area of a real estate property.

No definition available.

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ue_WalnutCreekMt.DiabloCAMember
Namespace Prefix:
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- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ue_SunriseMallMassapequaNYMember
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Data Type:	na
Balance Type:
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- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ue_SunriseMallMassapequaNYMember
Namespace Prefix:
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- Details

Name:	us-gaap_RealEstatePropertiesAxis=us-gaap_WhollyOwnedPropertiesMember
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Data Type:	na
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- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ue_RetailSiteShoppingCenterMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ue_RetailSiteOutletCentersMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ue_RetailSiteMallMember
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- Details

Name:	srt_ConsolidatedEntitiesAxis=us-gaap_ParentMember
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- Details

Name:	dei_LegalEntityAxis=ue_VornadoRealtyL.P.Member
Namespace Prefix:
Data Type:	na
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- Details

Name:	srt_OwnershipAxis=ue_OperatingPartnershipMember
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ORGANIZATION - Narrative (Details) ft² in Millions	12 Months Ended
ORGANIZATION - Narrative (Details) ft² in Millions	Dec. 31, 2025 ft² center property	Dec. 31, 2024
Real Estate Properties [Line Items]
Square Feet \| ft²	17.2
Walnut Creek (Mt. Diablo), CA
Real Estate Properties [Line Items]
Ownership percentage	95.00%
Massapequa (portion leased through 2069), NY \| Massapequa (portion leased through 2069), NY
Real Estate Properties [Line Items]
Ownership percentage		82.50%
Wholly owned properties \| Shopping Center
Real Estate Properties [Line Items]
Number of real estate properties	69
Wholly owned properties \| Outlet centers
Real Estate Properties [Line Items]
Number of real estate properties \| center	2
Wholly owned properties \| Mall
Real Estate Properties [Line Items]
Number of real estate properties	2
Parent \| Vornado Realty L.P. \| Operating Partnership
Real Estate Properties [Line Items]
Noncontrolling interest percentage	94.90%