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Senior Living Community Management Agreements - Narrative (Details) $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 31, 2022 USD ($) | Jun. 09, 2021 | Mar. 31, 2024 community | Dec. 31, 2024 USD ($) community property unit option | Dec. 31, 2023 USD ($) community | Dec. 31, 2022 USD ($) community | Dec. 31, 2021 unit community
Concentration Risk |  |  |  |  |  |  |
Number of properties owned (property) | property |  |  |  | 367 |  |  |
Property operating expenses |  |  |  | $ 1,236,542 | $ 1,174,151 | $ 1,109,070 |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of properties owned (property) | property |  |  |  | 32 |  |  |
Affiliated Entity | Five Star Management |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Termination fees paid | $ 350 |  |  |  |  |  |
Senior Living Communities |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of units in real estate property | unit |  |  |  | 27,000 |  |  |
Five Star | Affiliated Entity |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Management fees as a percentage of gross revenues |  |  |  | 5.00% |  |  |
Percentage of annual incentive fee |  |  |  | 15.00% |  |  |
Consumer price index annual estimated increase |  |  |  | 2.00% |  |  |
Trigger basis for capital investment ratio (percent) |  |  |  | 6.00% |  |  |
Business and property management agreement, number of agreements | option |  |  |  | 2 |  |  |
Renewal term (years) |  |  |  | 5 years |  |  |
Property management agreement expense |  |  |  | $ 42,474 | 40,119 | 37,037 |
Related party transaction capitalized amount |  |  |  | 2,262 | 2,683 | 3,300 |
Five Star | Affiliated Entity | Operating Expense |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Property management agreement expense |  |  |  | 40,212 | 37,436 | 33,737 |
Five Star | Affiliated Entity | Rehabilitation Services |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Property operating expenses |  |  |  | $ 0 | $ 1,213 | $ 6,289 |
Five Star | Senior Living Communities | Affiliated Entity |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of communities managed | community |  |  |  | 118 | 119 | 119 |
Related party transactions, termination percentage |  | 10.00% |  |  |  |  |
Percentage of EBITDA threshold for contract termination |  | 80.00% |  |  |  |  |
Five Star | Senior Living Communities | Affiliated Entity | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of properties transitioned | community |  |  |  |  |  |  | 107
Number of units in real estate property | unit |  |  |  |  |  |  | 7,340
Amounts of transaction |  |  |  |  |  | $ 2,096 |
Five Star | Senior Living Communities | Affiliated Entity | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of properties owned (property) | community |  |  |  |  |  |  | 108
Third Party Managers | Senior Living Communities | Affiliated Entity |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of communities managed | community |  |  |  | 114 | 113 | 111 |
Property management agreement expense |  |  |  | $ 23,283 | $ 21,863 | $ 20,739 |
Management agreement, term |  |  |  | 5 years |  |  |
Management agreement, extension term |  |  |  | 2 years |  |  |
Termination and other fees |  |  |  | $ 2,228 |  |  |
Incentive fee |  |  |  | $ 241 |  |  |
Third Party Managers | Senior Living Communities | Affiliated Entity | Wisconsin And Illinois |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Number of communities managed | community |  |  | 13 |  |  |  |
Third Party Managers | Senior Living Communities | Affiliated Entity | Minimum |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Management fees as a percentage of gross revenues |  |  |  | 5.00% |  |  |
Percentage of annual incentive fee |  |  |  | 15.00% |  |  |
Construction supervision fee |  |  |  | 3.00% |  |  |
Property management agreement, management fees |  |  |  | 70.00% |  |  |
Third Party Managers | Senior Living Communities | Affiliated Entity | Maximum |  |  |  |  |  |  |
Concentration Risk |  |  |  |  |  |  |
Management fees as a percentage of gross revenues |  |  |  | 6.00% |  |  |
Percentage of annual incentive fee |  |  |  | 25.00% |  |  |
Construction supervision fee |  |  |  | 5.00% |  |  |
Property management agreement, management fees |  |  |  | 80.00% |  |  |

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