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Consolidated Balance Sheets (Parentheticals)
Dec. 31, 2013
Dec. 31, 2012
Consolidated Balance Sheets (Abstract)    
Limited Partners - Common Units Issued 88,440,710 69,372,077
Limited Partners - Common Units Outstanding 88,440,710 69,372,077
Limited Partners - Preferred Units Issued 18,922,221 15,555,554
Limited Partners - Preferred Units Outstanding 18,922,221 15,555,554