XML 59 R38.htm IDEA: XBRL DOCUMENT
v3.4.0.3

ACQUISITIONS - Narrative (Details) | 3 Months Ended
--- | ---
Mar. 31, 2016
Pan Bay Center |
Business Acquisition [Line Items] |
Deferral period of gains from sale of other properties, for tax purposes | 180 days

X
- Definition Like-kind Exchange Agreements, Gains on Sale of Properties, Deferral Period for Tax Purposes, Maximum + References No definition available. + Details
Name: | ue_LikekindExchangeAgreementsGainsonSaleofPropertiesDeferralPeriodforTaxPurposesMaximum
Namespace Prefix: | ue_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ue_PanBayCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |