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v2.4.1.9

Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 Guarantee | Mar. 31, 2014 | Dec. 31, 2014
Commitments and Contingencies [Line Items] |  |  |
Payments for capital improvements | $ 1,717 us-gaap_PaymentsForCapitalImprovements | $ 3,051 us-gaap_PaymentsForCapitalImprovements |
Number of guarantees outstanding | 2 lxp_NumberofGuaranteesOutstanding |  |
Base Building Improvements [Member] |  |  |
Commitments and Contingencies [Line Items] |  |  |
Obligation for tenant improvements | 1,384 us-gaap_OtherCommitment / lxp_CommitmentByNatureAxis = lxp_BaseBuildingImprovementsMember |  |
Payment of the Base Building Improvement, Tenant Improvement Alloance, and Lease Commissions [Member] |  |  |
Commitments and Contingencies [Line Items] |  |  |
Obligation for tenant improvements | 138 us-gaap_OtherCommitment / lxp_CommitmentByNatureAxis = lxp_PaymentoftheBaseBuildingImprovementTenantImprovementAlloanceandLeaseCommissionsMember |  |
Byhalia Mississippi [Member] |  |  |
Commitments and Contingencies [Line Items] |  |  |
Payments for capital improvements |  |  | $ 15,300 us-gaap_PaymentsForCapitalImprovements / invest_InvestmentGeographicRegionAxis = lxp_ByhaliaMississippiMember

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- Details
Name: | lxp_CommitmentsAndContingenciesLineItems
Namespace Prefix: | lxp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of Guarantees Outstanding + References No definition available. + Details
Name: | lxp_NumberofGuaranteesOutstanding
Namespace Prefix: | lxp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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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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- Definition The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsForCapitalImprovements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | invest_InvestmentGeographicRegionAxis=lxp_ByhaliaMississippiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | lxp_CommitmentByNatureAxis=lxp_BaseBuildingImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | lxp_CommitmentByNatureAxis=lxp_PaymentoftheBaseBuildingImprovementTenantImprovementAlloanceandLeaseCommissionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |