XML 108 R3.htm IDEA: XBRL DOCUMENT v2.4.0.8
Consolidated Balance Sheets (Parentheticals)
Jun. 30, 2013
Dec. 31, 2012
Equity:    
Limited partners: Depositary units issued 111,147,379 104,850,813
Limited partners: Depositary units outstanding 111,147,379 104,850,813