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Unrealized Gain / Loss on Investments (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
May. 31, 2015 | Sep. 30, 2015 | Apr. 30, 2015
CommonWealth REIT (EQC) |  |  |
Unrealized gain on investments |  |  |
Investment in common shares |  |  | 250,000
Proceeds from equity shares sold | $ 6,571 |  |
Realized gain on available for sale equity securities | $ 71 |  |
Five Star |  |  |
Unrealized gain on investments |  |  |
Investment in common shares |  | 4,235,000 |
Quoted market prices (in dollars per share) |  | $ 3.09 |
Weighted average costs (in dollars per share) |  | $ 3.36 |

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- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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- Definition The cash inflow associated with the sale of equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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