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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $) In Thousands, except Share data, unless otherwise specified | Total | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in-Capital [Member] | Accumulated Distributions in Excess of Net Income [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Non-controlling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2011 | $ 1,170,203 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | $ 311,673 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | $ 15 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 2,010,850 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (1,212,630)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember | $ 1,938 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ 58,357 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Beginning balance (in shares) at Dec. 31, 2011 |  | 10,911,074 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | 154,938,351 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Contributions from noncontrolling interests | 1,262 us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance |  |  |  |  |  | 1,262 us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Redemption of noncontrolling OP units for common shares |  |  |  | 1,343 lxp_CashandStockIssuedDuringPeriodValueConversionofUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (1,343)lxp_CashandStockIssuedDuringPeriodValueConversionofUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Redemption of noncontrolling OP units for common shares (in shares) |  |  | 257,427 us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Repurchase of preferred shares | (70,000)lxp_RepurchaseOfPreferredShares | (67,883)lxp_RepurchaseOfPreferredShares / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |  |  | (2,117)lxp_RepurchaseOfPreferredShares / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  |
Repurchase of preferred shares (in shares) |  | (2,775,674)lxp_RepurchaseOfPreferredSharesShares / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |  |  |  |  |
Issuance of common shares upon conversion of Convertible Notes | 33,770 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments |  | 1 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 33,769 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of common shares upon conversion of convertible notes (in shares) | 4,487,060 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities |  | 4,487,060 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of employee common share options, net | (534)us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |  |  | (534)us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Exercise of employee common share options, net (in shares) |  |  | 110,944 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common shares and deferred compensation amortization, net | 167,523 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization |  | 2 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 167,521 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of common shares and deferred compensation amortization, net (in shares) |  |  | 18,822,882 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortizationShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Deconsolidation of consolidated joint venture | (782)us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation |  |  |  |  |  | (782)us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Dividends/distributions | (144,753)lxp_StockholdersEquityDividendsandDistributions |  |  |  | (109,372)lxp_StockholdersEquityDividendsandDistributions / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | (35,381)lxp_StockholdersEquityDividendsandDistributions / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Net income | 184,638 us-gaap_ProfitLoss |  |  |  | 180,316 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | 4,322 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss) | (8,162)us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  |  | (8,162)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Ending balance at Dec. 31, 2012 | 1,333,165 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 243,790 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | 18 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 2,212,949 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (1,143,803)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember | (6,224)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 26,435 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Ending balance (in shares) at Dec. 31, 2012 |  | 8,135,400 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | 178,616,664 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Redemption of noncontrolling OP units for common shares |  |  |  | 1,053 lxp_CashandStockIssuedDuringPeriodValueConversionofUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (1,053)lxp_CashandStockIssuedDuringPeriodValueConversionofUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Redemption of noncontrolling OP units for common shares (in shares) |  |  | 202,241 us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Repurchase of preferred shares | (155,004)lxp_RepurchaseOfPreferredShares | (149,774)lxp_RepurchaseOfPreferredShares / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |  |  | (5,230)lxp_RepurchaseOfPreferredShares / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  |
Repurchase of preferred shares (in shares) |  | (6,200,000)lxp_RepurchaseOfPreferredSharesShares / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |  |  |  |  |
Issuance of common shares upon conversion of Convertible Notes | 60,686 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments |  | 1 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 60,685 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of common shares upon conversion of convertible notes (in shares) | 7,944,673 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities |  | 7,944,673 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Acquisition of consolidated joint venture partner's equity interest | (8,918)lxp_AcquisitionofConsolidatedJointVenturePartnersEquityInterest |  |  |  | (8,918)lxp_AcquisitionofConsolidatedJointVenturePartnersEquityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  |
Exercise of employee common share options, net | 2,289 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |  |  | 2,289 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Exercise of employee common share options, net (in shares) |  |  | 955,478 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Forfeiture of employee common shares | (20)lxp_ForfeitureOfEmployeeCommonShares |  |  | (20)lxp_ForfeitureOfEmployeeCommonShares / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Forfeiture of employee common shares (in shares) |  |  | (3,571)lxp_ForfeitureOfEmployeeCommonSharesShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common shares and deferred compensation amortization, net | 440,835 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization |  | 4 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 440,831 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of common shares and deferred compensation amortization, net (in shares) |  |  | 40,947,537 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortizationShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Dividends/distributions | (148,076)lxp_StockholdersEquityDividendsandDistributions |  |  |  | (144,206)lxp_StockholdersEquityDividendsandDistributions / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | (3,870)lxp_StockholdersEquityDividendsandDistributions / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Net income | 3,863 us-gaap_ProfitLoss |  |  |  | 1,630 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | 2,233 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss) | 10,663 us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  |  | 10,663 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Ending balance at Dec. 31, 2013 | 1,539,483 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 94,016 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | 23 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 2,717,787 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (1,300,527)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember | 4,439 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 23,745 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Ending balance (in shares) at Dec. 31, 2013 |  | 1,935,400 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | 228,663,022 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Redemption of noncontrolling OP units for common shares | (1,962)lxp_CashandStockIssuedDuringPeriodValueConversionofUnits |  |  | (858)lxp_CashandStockIssuedDuringPeriodValueConversionofUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (1,104)lxp_CashandStockIssuedDuringPeriodValueConversionofUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Redemption of noncontrolling OP units for common shares (in shares) |  |  | 29,086 us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common shares upon conversion of Convertible Notes | 14,347 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments |  |  | 14,347 us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of common shares upon conversion of convertible notes (in shares) | 1,904,542 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities |  | 1,904,542 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Acquisition of consolidated joint venture partner's equity interest | (2,100)lxp_AcquisitionofConsolidatedJointVenturePartnersEquityInterest |  |  |  | (2,262)lxp_AcquisitionofConsolidatedJointVenturePartnersEquityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | 162 lxp_AcquisitionofConsolidatedJointVenturePartnersEquityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Exercise of employee common share options, net | 597 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |  |  | 597 us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Exercise of employee common share options, net (in shares) |  |  | 303,852 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Forfeiture of employee common shares | (57)lxp_ForfeitureOfEmployeeCommonShares |  |  | (57)lxp_ForfeitureOfEmployeeCommonShares / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Forfeiture of employee common shares (in shares) |  |  | (13,658)lxp_ForfeitureOfEmployeeCommonSharesShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Issuance of common shares and deferred compensation amortization, net | 31,558 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization |  |  | 31,558 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortization / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Issuance of common shares and deferred compensation amortization, net (in shares) |  |  | 2,391,193 lxp_CommonSharesIssuanceAndDeferredCompensationCostsAmortizationShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Dividends/distributions | (166,374)lxp_StockholdersEquityDividendsandDistributions |  |  |  | (162,366)lxp_StockholdersEquityDividendsandDistributions / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | (4,008)lxp_StockholdersEquityDividendsandDistributions / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Net income | 97,463 us-gaap_ProfitLoss |  |  |  | 93,104 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember |  | 4,359 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Other comprehensive income (loss) | (4,035)us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  |  | (4,035)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Ending balance at Dec. 31, 2014 | $ 1,508,920 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | $ 94,016 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | $ 23 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 2,763,374 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (1,372,051)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDistributionsInExcessOfNetIncomeMember | $ 404 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ 23,154 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
Ending balance (in shares) at Dec. 31, 2014 |  | 1,935,400 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember | 233,278,037 us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |

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