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v2.4.1.9

Supplemental Disclosure of Statement of Cash Flow Information (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Other Significant Noncash Transactions [Line Items] |  |  |
Interest paid | $ 100,080,000 us-gaap_InterestPaid | $ 92,788,000 us-gaap_InterestPaid | $ 101,262,000 us-gaap_InterestPaid
Income taxes paid | 859,000 us-gaap_IncomeTaxesPaid | 4,666,000 us-gaap_IncomeTaxesPaid | 1,018,000 us-gaap_IncomeTaxesPaid
Interests Sold [Member] |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |
Real estate number of properties sold (in # of properties) |  | 2 lxp_RealEstateNumberOfPropertiesSold / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_InterestsSoldMember |
Real estate non-recourse mortgage debt assumed | 30,140,000 lxp_RealEstateNonRecourseMortgageDebtAssumedByBuyer / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_InterestsSoldMember | 40,356,000 lxp_RealEstateNonRecourseMortgageDebtAssumedByBuyer / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_InterestsSoldMember | 8,921,000 lxp_RealEstateNonRecourseMortgageDebtAssumedByBuyer / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_InterestsSoldMember
Conveyed Interest [Member] |  |  |
Other Significant Noncash Transactions [Line Items] |  |  |
Properties with conveyed interest | 1 lxp_PropertiesWithConveyedInterest / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_ConveyedInterestMember | 4 lxp_PropertiesWithConveyedInterest / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_ConveyedInterestMember | 2 lxp_PropertiesWithConveyedInterest / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_ConveyedInterestMember
Seller financing | 9,900,000 lxp_FinancingProvidedToBuyerBySeller / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_ConveyedInterestMember |  |
Original debt conversion amount |  | $ 49,510,000 us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_ConveyedInterestMember | $ 12,409,000 us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = lxp_ConveyedInterestMember

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- Definition Financing Provided To Buyer By Seller + References No definition available. + Details
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Namespace Prefix: | lxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Properties with Conveyed Interest + References No definition available. + Details
Name: | lxp_PropertiesWithConveyedInterest
Namespace Prefix: | lxp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Real Estate Non Recourse Mortgage Debt Assumed By Buyer + References No definition available. + Details
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Namespace Prefix: | lxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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Balance Type: | credit
Period Type: | duration

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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Balance Type: | credit
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- Definition The amount of cash paid for interest during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |