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Senior Living Community Management Agreements - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 USD ($) property | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) community property | Sep. 30, 2022 USD ($) community | Dec. 31, 2021 unit community
Number of Properties | property | 376 |  | 376 |  |
Property operating expenses | $ 298,432 | $ 289,096 | $ 870,740 | $ 823,904 |
Disposal Group, Held-for-Sale, Not Discontinued Operations |  |  |  |  |
Number of Properties | property | 6 |  | 6 |  |
Five Star |  |  |  |  |
Property management agreement expense | $ 10,058 | 9,477 | $ 29,962 | 27,380 |
Related party transaction capitalized amount | 601 | 876 | 2,053 | 2,363 |
Five Star | Rehabilitation Services |  |  |  |  |
Property operating expenses | 0 | 1,590 | 1,213 | 5,242 |
Five Star | Operating Expense |  |  |  |  |
Property management agreement expense | 9,457 | 8,601 | $ 27,909 | 25,017 |
Senior Living Communities | Five Star | Disposal Group, Held-for-Sale, Not Discontinued Operations |  |  |  |  |
Number of Properties | community |  |  |  |  | 108
Senior Living Communities | Five Star | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations |  |  |  |  |
Number of properties transitioned | community |  |  |  |  | 107
Number of property units (units) | unit |  |  |  |  | 7,340
Amounts of transaction |  | 220 |  | $ 1,665 |
Senior Living Communities | Affiliated Entity | Five Star |  |  |  |  |
Number of communities managed | community |  |  | 119 | 120 |
Senior Living Communities | Affiliated Entity | Third Party Managers |  |  |  |  |
Number of communities managed | community |  |  | 111 | 107 |
Property management agreement expense | $ 5,635 | $ 5,108 | $ 16,230 | $ 15,434 |

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