Investments in Available for Sale Securities (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) $ / shares shares
Five Star
Unrealized gain on investments
Investment in common shares | shares	4,235,000
Amount of investment acquired	$ 14,230
Fair value of the investments in available for sale securities	9,698
Unrealized loss	$ 4,532
Weighted average costs (in dollars per share) | $ / shares	$ 2.29
The RMR Group Inc
Unrealized gain on investments
Amount of investment acquired	$ 69,826
Fair value of the investments in available for sale securities	65,962
Unrealized loss	$ 3,864
Weighted average costs (in dollars per share) | $ / shares	$ 25.01
The RMR Group Inc | Class A common shares
Unrealized gain on investments
Investment in common shares | shares	2,637,408