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Related Party Transactions (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2014 | Dec. 31, 2015
LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party advances, net | $ 2,993 |  |  | $ 3,232
General and administrative expense | 6,905 | $ 6,633 |  |
Property operating expenses | 580 | 691 |  |
Affiliated Entity [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Contractual Obligation | 18,000 |  |  |
Maximum amount to be distributed to related party | 7 |  |  |
Lexington Realty Trust [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Notes payable, related parties |  |  | $ 8,250 |
Related party transaction, rate |  |  | 4.25% |
Related party advances, net | 2,993 |  |  | $ 3,232
Unit distributions earned | 48,032 | 42,486 |  |
Interest expense | $ 9,171 | $ 9,150 |  |
General Partner [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Issuance of units (in units) |  | 3,767,000 |  |
Issuance of units |  | $ 37,879 |  |
General Partner [Member] | Lexington Realty Trust [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Issuance of units (in units) |  | 3,767,000 |  |
Issuance of units |  | $ 37,879 |  |

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