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Related Party Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017 | Jan. 31, 2018
LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
General and administrative expense | $ 1,744 | $ 1,418 |  |
Property operating expenses | 156 | 170 |  |
Lexington Realty Trust [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Maximum amount to be distributed from (to) related party | (2,476) |  | $ (2,422) |
Unit distributions earned | 14,340 | 16,287 |  |
Interest expense | 2,369 | $ 1,811 |  |
Affiliated Entity [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Notes payable, related party |  |  | 8,000 | $ 500
Notes payable, related party, potential maximum amount |  |  | 12,000 |
Affiliated Entity [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Notes payable, related party | $ 500 |  | 8,000 |
Notes payable, related party, potential maximum amount |  |  | 12,000 |
Expense Reimbursement [Member] | Affiliated Entity [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Property operating expenses |  |  | 105 |
Expense Reimbursement [Member] | Affiliated Entity [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Property operating expenses |  |  | 105 |
Structuring Fee [Member] | Affiliated Entity [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Property operating expenses |  |  | 128 |
Structuring Fee [Member] | Affiliated Entity [Member] | LCIF [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Property operating expenses |  |  | $ 128 |

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