CONSOLIDATED BALANCE SHEETS (Parenthetical)	Jun. 30, 2011	Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS
Common unitholders, units issued	21,580,563	13,293,139
Common unitholders, units outstanding	21,575,823	13,232,629
Subordinated unitholders, units issued	0	5,642,424
Subordinated unitholders, units outstanding	0	5,642,424
General partner interest (as a percent)	1.06%	1.20%
General partner interest, equivalent units outstanding	230,303	230,303