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Real Estate Assets (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 USD ($) ft² a numberOfBuildings | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2024 USD ($) ft² a numberOfBuildings | Dec. 31, 2023 USD ($) numberOfBuildings | Dec. 31, 2022 USD ($) ft² numberOfBuildings
Acquisitions [Abstract] |  |  |  |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 27,800,000 |  |  | 27,800,000 |  |
Dispositions [Abstract] |  |  |  |  |  |
Gains on disposition of property |  |  |  | $ 46,817 | $ 47,773 | $ 63,546
Impairments [Abstract] |  |  |  |  |  |
Impairments of real estate assets |  |  |  | 24,600 | 0 | 36,515
Atlanta GA Ground Lease Acquisition [Member] |  |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |  |
Purchase price of acquisition |  |  |  | $ 50,800 |  |
Number of buildings | numberOfBuildings | 12 |  |  | 12 |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 1,700,000 |  |  | 1,700,000 |  |
Undeveloped land suitable for future development (in acres) | a | 13 |  |  | 13 |  |
Raleigh NC Land Acquisition |  |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |  |
Purchase price of acquisition |  |  |  |  | $ 2,700 |
SIX50 at Legacy Union [Member] |  |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |  |
Purchase price of acquisition |  |  |  |  |  | $ 198,000
Rentable square feet of commercial real estate (in square feet) | ft² |  |  |  |  |  | 367,000
Charlotte NC Land Acquisition [Member] |  |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |  |
Purchase price of acquisition |  |  |  |  |  | $ 27,000
2024 Dispositions |  |  |  |  |  |
Dispositions [Abstract] |  |  |  |  |  |
Number of buildings sold | numberOfBuildings | 10 |  |  | 10 |  |
Sales price of disposition |  |  |  | $ 105,300 |  |
Gains on disposition of property |  |  |  | $ 46,800 |  |
2023 Dispostions |  |  |  |  |  |
Dispositions [Abstract] |  |  |  |  |  |
Number of buildings sold | numberOfBuildings |  |  |  |  | 4 |
Sales price of disposition |  |  |  |  | $ 103,800 |
Gains on disposition of property |  |  |  |  | 47,800 |
2022 Dispositions [Member] |  |  |  |  |  |
Dispositions [Abstract] |  |  |  |  |  |
Number of buildings sold | numberOfBuildings |  |  |  |  |  | 5
Sales price of disposition |  |  |  |  |  | $ 133,500
Closing credits excluded for unfunded building and/or tenant improvements |  |  |  |  |  | 1,100
Gains on disposition of property |  |  |  |  |  | $ 63,500
Seller Financed Transaction [Member] |  |  |  |  |  |
Dispositions [Abstract] |  |  |  |  |  |
Sales price of disposition |  |  |  |  | 21,000 |
Seller Financing [Abstract] |  |  |  |  |  |
Proceeds from sale of real estate |  |  |  |  | 2,000 |
Non-recourse seller financing |  |  |  |  | $ 19,000 |
Term of debt instrument |  |  |  |  | 2 years |
Interest rate basis |  |  |  |  | SOFR |
Interest rate, basis spread (in hundredths) |  |  |  |  | 1.00% |
2024 Impairments [Member] |  |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 616,000 |  |  | 616,000 |  |
Impairments [Abstract] |  |  |  |  |  |
Impairments of real estate assets | $ 24,600 |  |  |  |  |
2022 Impairments [Member] |  |  |  |  |  |
Impairments [Abstract] |  |  |  |  |  |
Impairments of real estate assets |  | $ 1,500 | $ 35,000 |  |  |

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