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Organization, Properties, Basis of Presentation, Financial Instruments and Recent Accounting Standards (Details) | Sep. 30, 2013 property entity note
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Organization |
Number of promissory notes secured by mortgages on real estate owned by Sponsored REITs | 7
Number of corporations organized to operate as real estate investment trusts (REITs) | 15
Number of REITs in which the entity holds non-controlling preferred stock interest | 2
Number of properties held for sale | 1
Mortgage loan |
Organization |
Number of promissory notes secured by mortgages on real estate owned by Sponsored REITs | 1
Secured construction loan |
Organization |
Number of promissory notes secured by mortgages on real estate owned by Sponsored REITs | 1
Revolving lines of credit |
Organization |
Number of promissory notes secured by mortgages on real estate owned by Sponsored REITs | 5
FSP Investments LLC |
Organization |
Ownership interest (as a percent) | 100.00%
FSP Property Management LLC |
Organization |
Ownership interest (as a percent) | 100.00%
FSP Holdings LLC |
Organization |
Ownership interest (as a percent) | 100.00%
FSP Protective TRS Corp. |
Organization |
Ownership interest (as a percent) | 100.00%

X
- Definition Represents the number of promissory notes secured by mortgages on real estate owned by Sponsored REITs. + References No definition available. + Details
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X
- Definition Represents the number of real estate properties held for sale as of the balance sheet date. + References No definition available. + Details
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X
- Definition Represents the number of entities in which the reporting entity has a non-controlling common stock interest. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
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- Definition Represents the number of entities in which the reporting entity has a non-controlling preferred stock interest. + References No definition available. + Details
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- Details
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- Definition Represents the ownership interest percentage of the parent in consolidated entities. + References No definition available. + Details
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