Condensed Consolidated Balance Sheets (Unaudited), (Parenthetical)	Mar. 31, 2014	Dec. 31, 2013
EQUITY
Common units issued (units)	39,199,766	39,148,916
Subordinated units issued (units)	15,254,890	15,254,890
General partner units issued (units)	1,110,282	1,110,282
Common units outstanding (units)	39,199,766	39,148,916
Subordinated units outstanding (units)	15,254,890	15,254,890
General partner units outstanding (units)	1,110,282	1,110,282