NET INCOME PER LIMITED PARTNER UNIT (Formula for Distributing Available Cash in Partnership Agreement) (Details) - $ / shares	6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
Minimum Quarterly Distribution [Member]
Portion of Quarterly Distribution Per Unit, maximum (in dollars per share)	$ 0.5435		$ 0.295
Percentage Distributed to General Partner (in percentage)	2.00%	[1]	2.00%
Percentage Distributed to Limited partners (in percentage)	98.00%		98.00%
First Target Distribution [Member]
Portion of Quarterly Distribution Per Unit, minimum (in dollars per share)	$ 0.5435		$ 0.295
Portion of Quarterly Distribution Per Unit, maximum (in dollars per share)			$ 0.35
Percentage Distributed to General Partner (in percentage)	25.00%	[1]	15.00%
Percentage Distributed to Limited partners (in percentage)	75.00%		85.00%
Second Target Distribution [Member]
Portion of Quarterly Distribution Per Unit, minimum (in dollars per share)			$ 0.35
Portion of Quarterly Distribution Per Unit, maximum (in dollars per share)			$ 0.495
Percentage Distributed to General Partner (in percentage)			25.00%
Percentage Distributed to Limited partners (in percentage)			75.00%
Over Second Target Distribution [Member]
Portion of Quarterly Distribution Per Unit, minimum (in dollars per share)			$ 0.495
Percentage Distributed to General Partner (in percentage)			50.00%
Percentage Distributed to Limited partners (in percentage)			50.00%

[1] For distributions in excess of the Minimum Quarterly Distribution, this percentage includes both the General Partner's distributions of 2% and the distribution to the Incentive Distribution Unit holder, a wholly-owned subsidiary of our General Partner.