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Related Party Transactions and Investments in Non-Consolidated Entities (Details) (USD $) |  |  |  | 0 Months Ended | 1 Months Ended |  |  | 0 Months Ended
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Mar. 31, 2014 entity | Dec. 31, 2013 entity | Mar. 31, 2013 entity | Sep. 30, 2013 FSP Phoenix Tower Corp Preferred shares ownership | Jan. 04, 2013 FSP Phoenix Tower Corp Preferred shares ownership | Sep. 30, 2006 FSP Phoenix Tower Corp Preferred shares ownership | Mar. 31, 2014 FSP Phoenix Tower Corp Preferred shares ownership | Dec. 20, 2012 FSP Phoenix Tower Corp Preferred shares ownership | Sep. 30, 2013 FSP Phoenix Tower Corp Common stock ownership
Related Party Transactions and Investments in Non-Consolidated Entities |  |  |  |  |  |  |  |  |
Sponsored REITs (in entities) | 14 | 14 | 15 |  |  |  |  |  |
Number of REITs in which the entity holds non-controlling preferred stock interest | 2 |  |  |  |  |  |  |  |
Sponsored REIT |  |  |  |  |  |  |  |  |
Preferred shares purchased |  |  |  |  |  | 48 |  |  |
Percentage of outstanding preferred shares purchased |  |  |  |  |  | 4.60% |  |  |
Beneficial interest |  |  |  |  |  |  | $ 14,000 | $ 4,862,000 |
Amount received |  |  |  | $ 96,000 | $ 4,752,000 |  |  |  | $ 10,000

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- Definition Represents the percentage of the equity method investee's outstanding preferred stock purchased by the entity during the reporting period. + References No definition available. + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570 + Details
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- Definition Cash dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations that are returns of capital. Excludes dividends or distributions from equity method investments classified as operating activities. + References No definition available. + Details
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