CASH DISTRIBUTIONS (Details) (USD $)	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2014
CASH DISTRIBUTIONS
Period after the end of each quarter within which quarterly cash distributions to partners are to be paid					45 days
Quarterly distribution (in dollars per unit)	$ 0.84	$ 0.84	$ 0.84	$ 0.81