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v2.4.0.8

Bank note payable (Tables) | 6 Months Ended
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Jun. 30, 2013
Bank note payable |
Schedule of actual amount of applicable facility fee, LIBOR rate or base rate determined based on total leverage ratio |
Leverage Ratio |  | Facility Fee |  | LIBOR Margin |  | Base Rate Margin |
< 25% |  | 20.0 bps |  | 135.0 bps |  | 35.0 bps |
> 25% and < 35% |  | 25.0 bps |  | 140.0 bps |  | 40.0 bps |
> 35% and < 45% |  | 30.0 bps |  | 145.0 bps |  | 45.0 bps |
> 45% and < 55% |  | 35.0 bps |  | 165.0 bps |  | 65.0 bps |
> 55% |  | 40.0 bps |  | 190.0 bps |  | 90.0 bps |

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- Definition Tabular disclosure of fees charged and the interest rate margins applicable to the LIBOR rate or base rate, which is determined based on the total leverage ratio. + References No definition available. + Details
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Namespace Prefix: | fsp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration