CONSOLIDATED BALANCE SHEETS (Parenthetical)	Mar. 31, 2015	Dec. 31, 2014
CONSOLIDATED BALANCE SHEETS
Common unitholders, units issued	30,995,563	30,995,563
Common unitholders, units outstanding	30,542,344	30,604,961
General partner interest (as a percent)	0.74%	0.74%
General partner interest, equivalent units outstanding	230,303	230,303