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v3.20.2

Subsequent Events Additional Information (Details) $ in Thousands | 1 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 07, 2020 USD ($) property shares | Jun. 30, 2020 USD ($) shares | Jun. 30, 2019 shares
At-The-Market Program |  |  |
Subsequent Event [Line Items] |  |  |
Number of shares sold | shares |  | 5,321,588 | 0
Proceeds from sale of stock |  | $ 54,000 |
Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Number of properties disposed | property | 3 |  |
Proceeds from sale of assets | $ 67,000 |  |
Subsequent Event | At-The-Market Program |  |  |
Subsequent Event [Line Items] |  |  |
Number of shares sold | shares | 471,576 |  |
Proceeds from sale of stock | $ 4,928 |  |

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- Definition Number Of Properties Disposed + References No definition available. + Details
Name: | lxp_NumberOfPropertiesDisposed
Namespace Prefix: | lxp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfProductiveAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=lxp_AtMarketMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |