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Consolidated Balance Sheets Parenthetical
Mar. 31, 2012
Dec. 31, 2011
Common unitholders, units issued 31,128,124 31,003,154
Common unitholders, units outstanding 31,128,124 31,003,154
Subordinated unitholders, units issued 135,383,831 135,383,831
Subordinated unitholders, units outstanding 135,383,831 135,383,831
General Partner 2% interest 2.00% 2.00%
General Partner 2% interest, units issued 3,398,203 3,395,653
General Partner 2% interest, units outstanding 3,398,203 3,395,653