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Unrealized Gain / Loss on Investments (Details) (USD $) | 6 Months Ended
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Jun. 30, 2012
CommonWealth REIT (CWH) |
Unrealized gain on investments |
Investment in common shares | 250,000
Quoted market prices (in dollars per share) | $ 19.12
Weighted average costs (in dollars per share) | $ 26.00
Five Star |
Unrealized gain on investments |
Investment in common shares | 4,235,000
Quoted market prices (in dollars per share) | $ 3.07
Weighted average costs (in dollars per share) | $ 3.36

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