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Commitments and Contingencies (Details) $ in Thousands | Dec. 31, 2020 USD ($) project
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Commitments and Contingencies Disclosure [Abstract] |
Number of development projects | project | 5
Estimated construction costs | $ | $ 75,985

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- Definition Number Of Development Projects + References No definition available. + Details
Name: | lxp_NumberOfDevelopmentProjects
Namespace Prefix: | lxp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Real Estate Investment Property, Estimated Cost + References No definition available. + Details
Name: | lxp_RealEstateInvestmentPropertyEstimatedCost
Namespace Prefix: | lxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration