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Loans Receivable (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 1 Months Ended
--- | --- | ---
Dec. 31, 2014 portfolio_segment type_of_financing class_of_financing | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | $ 105,635 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | [1] | $ 99,443 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | [1] |  | $ 105,635 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | [1]
Loans receivable, net | 105,635 us-gaap_NotesReceivableNet |  | 99,443 us-gaap_NotesReceivableNet |  |  | 105,635 us-gaap_NotesReceivableNet |
Number of types of financing receivable | 2 lxp_NumberOfTypesOfFinancingReceivable |  |  |  |  |  |
Number of portfolio segments | 1 lxp_NumberofPortfolioSegments |  |  |  |  |  |
Net proceeds from sale of properties | 237,866 us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment |  | 75,519 us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment |  | 155,240 us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment |  |
Number of classes of financing receivable | 1 lxp_NumberOfClassesOfFinancingReceivable |  |  |  |  |  |
Norwalk, Connecticut [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_NorwalkConnecticutMember | [1],[2] | 28,186 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_NorwalkConnecticutMember | [1],[2] |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_NorwalkConnecticutMember | [1],[2]
Interest Rate | 7.50%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_NorwalkConnecticutMember | [2] | 7.50%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_NorwalkConnecticutMember | [2] |  |  |
Homestead, Florida [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_HomesteadFloridaMember | [1],[2] | 10,239 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_HomesteadFloridaMember | [1],[2] |  | 0 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_HomesteadFloridaMember | [1],[2]
Interest Rate | 7.50%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_HomesteadFloridaMember | [2] | 7.50%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_HomesteadFloridaMember | [2] |  |  |
Westmont, Illinios [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 12,152 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember | [1],[3] | 12,610 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember | [1],[3] |  | 12,152 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember | [1],[3]
Interest Rate | 6.45%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember | [3] | 6.45%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember | [3] |  |  |
Loan losses |  |  | 13,939 us-gaap_ProvisionForLoanLossesExpensed / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |  |  |  |
Impaired interest income | 1,284 us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |  | 1,737 us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |  |  |  |
Average recorded investment | 12,812 us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |  | 25,562 us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |  |  |  |
Unpaid principal balance | 26,786 us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |  |  |  |  | 26,786 us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_WestmontIlliniosMember |
Southfield, Michigan [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 3,296 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember | [1],[4] | 6,610 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember | [1],[4] |  | 3,296 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember | [1],[4]
Interest Rate | 4.55%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember | [4] | 4.55%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember | [4] |  |  |
Loan losses | 2,500 us-gaap_ProvisionForLoanLossesExpensed / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember |  |  |  |  |  |
Impaired interest income | 468 us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember |  |  |  |  |  |
Average recorded investment | 6,001 us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember |  |  |  |  |  |
Unpaid principal balance | 5,810 us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember |  |  |  |  | 5,810 us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SouthfieldMichiganMember |
Austin, Texas [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 2,800 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_AustinTexasMember | [1] | 2,389 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_AustinTexasMember | [1] |  | 2,800 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_AustinTexasMember | [1]
Interest Rate | 16.00%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_AustinTexasMember |  | 16.00%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_AustinTexasMember |  |  |  |
Kennewick, Washington [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 85,254 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_KennewickWashingtonMember | [1] | 37,030 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_KennewickWashingtonMember | [1] |  | 85,254 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_KennewickWashingtonMember | [1]
Interest Rate | 9.00%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_KennewickWashingtonMember |  | 9.00%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_KennewickWashingtonMember |  |  |  |
Other Loan Locations [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loan carrying-value | 2,133 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_OtherLoanLocationsMember | [1] | 2,379 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_OtherLoanLocationsMember | [1] |  | 2,133 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_OtherLoanLocationsMember | [1]
Interest Rate | 8.00%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_OtherLoanLocationsMember |  | 8.00%us-gaap_MortgageLoansOnRealEstateInterestRate / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_OtherLoanLocationsMember |  |  |  |
Schaumburg, Illinios [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Unrecorded interest income related to impaired loan |  |  | 2,939 us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SchaumburgIlliniosMember |  | 2,647 us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_SchaumburgIlliniosMember |  |
Office Building [Member] | Greenville, South Carolina [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Net proceeds from sale of properties |  |  |  |  |  | $ 11,491 us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment / lxp_AccountsNotesLoansAndFinancingReceivableByLocationOfCounterpartyAxis = lxp_GreenvilleSouthCarolinaMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_OfficeBuildingMember |
[1] | Loan carrying value includes accrued interest and is net of origination costs and loan losses.
[2] | Loan satisfied during 2014.
[3] | Borrowers are in default and the Company commenced foreclosure proceedings. Tenant at office property collateral terminated its lease. The Company recognized a loan loss of $13,939 during 2013. During 2014 and 2013, the Company recognized $1,284 and $1,737, respectively, of interest income relating to the impaired loan and the loan had an average recorded investment value of $12,812 and $25,562 during 2014 and 2013, respectively. At December 31, 2014, the impaired loan receivable had a contractual unpaid balance of $26,786.
[4] | The Company recorded a $2,500 loan loss in 2014 as the Company determined it was probable that it would not collect the amount owed at maturity. During 2014, the Company recognized $468 of interest income relating to the impaired loan and the loan had an average recorded investment of $6,001 during 2014. At December 31, 2014, the impaired loan receivable had a contractual unpaid balance of $5,810.

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