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Investments in Non-Consolidated Entities - Schedule of Investments in and Non-consolidated Entities (Details) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2023 USD ($) | Dec. 31, 2024 USD ($) property officeAsset | Dec. 31, 2023 USD ($) ft² officeAsset | Dec. 31, 2022 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investment Balance as of December 31, |  | $ 40,018 | $ 48,495 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | (3,179) | 1,366 | $ 16,006
Aggregate gain on sale of properties |  | 39,848 | 33,010 | 59,094
Gain on change in control of a subsidiary |  | 209 | 0 | 0
Total assets |  | 3,843,312 | 4,192,775 |
Total liabilities |  | 1,722,529 | 1,927,318 |
Debt satisfaction losses, net |  | 0 | $ (132) | (119)
Lombard Street Lots, LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Gain on change in control of a subsidiary |  | 209 |  |
Total assets |  | 4,608 |  |
Total liabilities |  | $ 4 |  |
ETNA Building D | Real Estate Investment Properties Available For Lease | Columbus, OH |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Area of Real Estate Property | ft² |  |  | 250,020 |
NNN MFG Cold JV L.P. |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Percent ownership at end of period |  | 20.00% |  |
Investment Balance as of December 31, |  | $ 10,428 | $ 19,693 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | $ (3,250) | (3,300) | (2,050)
Number of properties sold | property |  | 1 |  |
Aggregate gain on sale of properties |  | $ 9 |  |
Debt satisfaction losses, net |  | $ 555 |  |
NNN Office JV L.P. |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Percent ownership at end of period |  | 20.00% |  |
Investment Balance as of December 31, |  | $ 15,189 | 16,237 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | $ 504 | $ 508 | 18,156
NNN Office JV L.P. | NNN Office Joint Venture Properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Number of properties sold | officeAsset |  | 3 | 1 |
Income (loss) from equity method investments, gain on sale of assets |  | $ 1,382 | $ 1,010 |
Etna Park 70 LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Percent ownership at end of period |  | 90.00% | 90.00% |
Investment Balance as of December 31, |  | $ 9,732 | $ 10,320 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | (264) | (258) | (137)
Estimated construction costs |  |  | 30,200 |
Construction in process purchased by subsidiary |  | $ 15,897 |  |
Etna Park 70 East LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Percent ownership at end of period |  | 90.00% |  |
Investment Balance as of December 31, |  | $ 2,360 | 2,245 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | $ (167) | (192) | (174)
BSH Lessee L.P. |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Percent ownership at end of period |  | 0.00% |  |
Investment Balance as of December 31, |  | $ 0 | 0 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | $ 0 | 4,608 | 211
BSH Lessee L.P. | BSH Lessee Joint Venture Properties |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Aggregate gain on sale of properties | $ 4,791 |  |  |
Lombard Street Lots, LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Percent ownership at end of period |  | 44.10% |  |
Investment Balance as of December 31, |  | $ 2,309 | 0 |
Equity in earnings (losses) of non-consolidated entities Years ended December 31, |  | (2) | $ 0 | $ 0
Fair value of investment |  | $ 2,311 |  |

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