EARNINGS PER UNIT (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of earnings per limited partner unit

The following table details the components of EPU.

	Year ended December 31,
	2016			2015			2014
	(In thousands, except per-unit amounts)
Numerator for basic and diluted EPU:
Allocation of net loss among limited partner interests:
Net loss attributable to common units	$	(48,179	)	$	(125,437	)	$	(16,324	)
Net loss attributable to subordinated units				(70,173		)	(10,793		)
Net loss attributable to limited partners	$	(48,179	)	$	(195,610	)	$	(27,117	)
Denominator for basic and diluted EPU:
Weighted-average common units outstanding – basic	68,264			39,217			33,311
Effect of nonvested phantom units	—			—			—
Weighted-average common units outstanding – diluted	68,264			39,217			33,311
Weighted-average subordinated units outstanding – basic and diluted				24,410			24,410
Loss per limited partner unit:
Common unit – basic	$	(0.71	)	$	(3.20	)	$	(0.49	)
Common unit – diluted	$	(0.71	)	$	(3.20	)	$	(0.49	)
Subordinated unit – basic and diluted (1)				$	(2.88	)	$	(0.44	)
Nonvested anti-dilutive phantom units excluded from the calculation of diluted EPU	125			109			232

(1) The subordination period ended on February 16, 2016 and all 24,409,850 subordinated units converted to common units on a one-for-one basis (see Note 11).