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Related Person Transactions (Details) $ / shares in Units, $ in Thousands | Jul. 01, 2019 USD ($) $ / shares | Jun. 30, 2019 USD ($) agreement shares | Dec. 31, 2018 USD ($)
--- | --- | --- | ---
RMR Inc | Class A common shares |  |  |
Related person transactions |  |  |
Equity securities investment (in shares) | shares |  | 2,637,408 |
Number of management agreements | agreement |  | 2 |
Five Star |  |  |
Related person transactions |  |  |
Equity securities investment (in shares) | shares |  | 4,235,000 |
Investment owned, percentage of total shares outstanding |  | 8.30% |
AIC |  |  |
Related person transactions |  |  |
Equity method investments | $ |  | $ 9,303 | $ 8,632
RMR LLC | Five Star |  |  |
Related person transactions |  |  |
Investment owned, percentage of total shares outstanding |  | 35.40% |
Subsequent Event | RMR Inc | Class A common shares |  |  |
Related person transactions |  |  |
Sale of stock, price per share (in dollars per share) | $ / shares | $ 40.00 |  |
Proceeds from sale of investments | $ | $ 98,903 |  |

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