Cash Distributions and Earnings per Unit (Tables)

12 Months Ended

Dec. 31, 2015

CASH DISTRIBUTIONS AND EARNINGS PER UNIT [Abstract]

Schedule of incentive distributions made to General Partners or Unitholders by distribution

		Marginal Percentage Interest in Distributions
	Total Quarterly Distribution Target Amount	Common Unitholders			General Partner
Minimum Quarterly Distribution	up to $0.35		98	%		2	%
First Target Distribution	up to $0.4025		98	%		2	%
Second Target Distribution	above $0.4025 up to $0.4375		85	%		15	%
Third Target Distribution	above $0.4375 up to $0.525		75	%		25	%
Thereafter	above $0.525		50	%		50	%

Schedule of earnings per unit, basic and diluted

	Year Ended  December 31,  2015			Year Ended  December 31,  2014			Year Ended  December 31,  2013
Net income	$	41,805		$	74,853		$	59,006
Earnings attributable to:
Common unit holders		39,825			71,225			55,949
Weighted average units outstanding (basic and diluted)
Common unit holders		82,437,128			76,587,656			66,317,588
Earnings per unit (basic and diluted):
Common unit holders	$	0.48		$	0.93		$	0.84
Earnings per unit — distributed (basic and diluted):
Common unit holders	$	1.11		$	1.79		$	1.82
Loss per unit — undistributed (basic and diluted):
Common unit holders	$	(0.63	)	$	(0.86	)	$	(0.98	)