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v3.19.1

Commitments and Contingencies (Details) - Officer [Member] $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) retirement_agreement
Loss Contingencies [Line Items] |
Number of retirement agreements | retirement_agreement | 2
Maximum retirement agreement amount | $ 795
Retirement obligation earned | $ 89

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- Definition Number of Retirement Agreements + References No definition available. + Details
Name: | lxp_NumberofRetirementAgreements
Namespace Prefix: | lxp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Other Commitments, Maximum Retirement Agreement Amount + References No definition available. + Details
Name: | lxp_OtherCommitmentsMaximumRetirementAgreementAmount
Namespace Prefix: | lxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_TitleOfIndividualAxis=us-gaap_OfficerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |