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v3.21.1

Business and Property Management Agreements with RMR LLC (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) agreement employee | Mar. 31, 2020 USD ($) | Dec. 31, 2020
Related person transactions |  |  |
Number of employees | employee | 0 |  |
Property management and construction supervision fees | $ 3,154,000 | $ 3,192,000 |
Property management and construction supervision fees paid | 3,297,000 | 3,443,000 |
RMR LLC |  |  |
Related person transactions |  |  |
Business management fees incurred | 5,317,000 | 5,769,000 |
Related party transaction business management fees related to subsidiary level management | 725,000 |  |
Related party transaction business management agreement, annual incentive fee estimate included in management fees | 0 | 0 |
Period of actual amount of incentive fees |  |  | 3 years
Property management and construction supervision fees | 2,485,000 | 2,596,000 |
Party transaction property management and construction supervision fees capitalized | $ 669,000 | $ 596,000 |
Senior Living Communities | Five Star |  |  |
Related person transactions |  |  |
Number of consecutive renewal terms of agreement | agreement | 2 |  |

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