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RELATED PARTY TRANSACTIONS (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Lead Trustee [Member]
     
Related Party Transaction [Line Items]      
Related party transaction expense $ 0.1 $ 0.1 $ 0.1
Core Portfolio [Member] | Brandywine Portfolio [Member]
     
Related Party Transaction [Line Items]      
Related party revenue $ 0.1 $ 0.8 $ 1.0