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Investments in Properties (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Investments in Properties |  |
Land | $ 1,114,015 | $ 1,108,251
Acquired ground lease | 89 | 86
Buildings and improvements | 25,940,229 | 25,567,155
Tenant improvements | 893,631 | 883,502
Total investments in operating properties | 27,947,964 | 27,558,994
Accumulated depreciation and amortization | (8,856,535) | (8,641,331)
Investments in operating properties, net | 19,091,429 | 18,917,663
Construction in progress and space held for development | 4,973,266 | 5,164,334
Land held for future development | 69,089 | 38,785
Investments in properties, net | $ 24,133,784 | $ 24,120,782

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- Definition Amount of real estate investment property, net of accumulated depreciation, which may include (1) land available-for-sale; (2) investments in building and building improvements; (3) tenant allowances; and (4) acquired ground leases. + References No definition available. + Details
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