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Investments in Real Estate - Schedule of Land Held for Development (Details) $ in Thousands | 9 Months Ended |
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Sep. 30, 2024 USD ($) a | Dec. 31, 2023 USD ($)
Real Estate [Line Items] |  |
Approx. Developable Acres | a | 445 |
GAAP Investment Balance as of period end | $ 82,759 | $ 80,743
LXP Amount Funded as of period end | $ 80,213 |
Reems & Olive | Phoenix, AZ |  |
Real Estate [Line Items] |  |
Project (% owned) | 95.50% |
Approx. Developable Acres | a | 315 |
GAAP Investment Balance as of period end | $ 75,278 |
LXP Amount Funded as of period end | $ 74,149 |
Mt. Comfort Phase II | Indianapolis, IN |  |
Real Estate [Line Items] |  |
Project (% owned) | 80.00% |
Approx. Developable Acres | a | 116 |
GAAP Investment Balance as of period end | $ 5,749 |
LXP Amount Funded as of period end | $ 4,307 |
ATL Fairburn JV | Atlanta, GA |  |
Real Estate [Line Items] |  |
Project (% owned) | 100.00% |
Approx. Developable Acres | a | 14 |
GAAP Investment Balance as of period end | $ 1,732 |
LXP Amount Funded as of period end | $ 1,757 |

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- Definition Carrying amount net of impairment reserves as of the balance sheet date primarily consisting of deposits for land purchases (including option payments), related acquisition costs, and land which is not expected to be developed in the next two years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 976 -SubTopic 310 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477332/976-310-50-1 + Details
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