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Organization and Significant Accounting Policies - Components of Revenue Streams, Timing of Satisfying Performance Obligations, and Amounts (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Schedule of management, transaction, and other fees [Line Items] |  |  |  |
Management, transaction, and other fees | $ 7,106 | $ 6,499 | $ 13,144 | $ 13,183
Property management services [Member] |  |  |  |
Schedule of management, transaction, and other fees [Line Items] |  |  |  |
Management, transaction, and other fees | 3,487 | 3,310 | $ 6,945 | 6,928
Timing of satisfaction of performance obligations |  |  | Over time |
Asset management services [Member] |  |  |  |
Schedule of management, transaction, and other fees [Line Items] |  |  |  |
Management, transaction, and other fees | 1,648 | 1,669 | $ 3,277 | 3,425
Timing of satisfaction of performance obligations |  |  | Over time |
Leasing services [Member] |  |  |  |
Schedule of management, transaction, and other fees [Line Items] |  |  |  |
Management, transaction, and other fees | 1,096 | 1,171 | $ 1,814 | 2,167
Timing of satisfaction of performance obligations |  |  | Point in time |
Other transaction fees [Member] |  |  |  |
Schedule of management, transaction, and other fees [Line Items] |  |  |  |
Management, transaction, and other fees | $ 875 | $ 349 | $ 1,108 | $ 663
Timing of satisfaction of performance obligations |  |  | Point in time |

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