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Real Estate Investments (Tables) | 6 Months Ended
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Jun. 30, 2021
Real Estate [Abstract] |
Gross Carrying Value of Operating Properties | As of June 30, 2021 and December 31, 2020, the gross carrying value of the operating properties was as follows (in thousands):
| June 30, 2021 |  | December 31, 2020
Land | $ | 391,302 |  |  | $ | 407,514 |
Building and improvements | 2,596,282 |  |  | 2,665,232 |
Tenant improvements | 405,150 |  |  | 401,363 |
Total | $ | 3,392,734 |  |  | $ | 3,474,109 |

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- Definition Tabular disclosure of real estate properties and units in those properties that are included in the discussion of the nature of an entity's operations. + References No definition available. + Details
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