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Business and Property Management Agreements with RMR LLC (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) employee | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) property employee management_agreement | Sep. 30, 2016 USD ($)
Related person transactions |  |  |  |
Number of employees | employee | 0 |  | 0 |
Property management and construction supervision fees | $ 2,736 | $ 2,961 | $ 8,034 | $ 8,193
Property management and construction supervision fees paid | 2,353 | 2,482 | 7,116 | 6,781
Professional fees | 72 | 34 | 206 | 168
RMR LLC |  |  |  |
Related person transactions |  |  |  |
Business management fees incurred | 17,744 | $ 9,609 | 50,956 | $ 27,199
Related party transaction business management fees related to subsidiary level management | 725 |  | 1,512 |
Related party transaction business management agreement, annual incentive fee estimate included in management fees | $ 8,022 |  | $ 22,048 |
Related party transaction, incentive fee payable assessment period |  |  | 3 years |
Senior Living Communities | RMR Inc |  |  |  |
Related person transactions |  |  |  |
Number of consecutive renewal terms of agreement | management_agreement |  |  | 2 |
Number of communities managed by related party | property |  |  | 1 |

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