Earnings Per Unit - Computation of Basic and Diluted Earnings per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share Basic [Line Items]
NET INCOME (LOSS)	$ (7,286)	$ 37,535	$ (20,810)	$ 10,749	$ (49,730)	$ 53,892	$ (122,766)	$ 17,299	$ 20,188	$ (101,305)	$ 169,187
NET INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTERESTS SUBSEQUENT TO INITIAL PUBLIC OFFERING									12	1,260	0
DISTRIBUTIONS ON REDEEMABLE PREFERRED UNITS SUBSEQUENT TO INITIAL PUBLIC OFFERING									(5,763)	(7,522)	0
NET INCOME (LOSS) ATTRIBUTABLE TO THE GENERAL PARTNER AND COMMON AND SUBORDINATED UNITS SUBSEQUENT TO INITIAL PUBLIC OFFERING	(8,614)	36,219	(22,111)	8,943	(51,346)	50,916	(107,587)		14,437	(108,017)	0
Allocation of net loss subsequent to initial public offering attributable to:
General partner interest									0	0
NET INCOME (LOSS) ATTRIBUTABLE TO THE GENERAL PARTNER AND COMMON AND SUBORDINATED UNITS SUBSEQUENT TO INITIAL PUBLIC OFFERING	$ (8,614)	$ 36,219	$ (22,111)	$ 8,943	$ (51,346)	$ 50,916	$ (107,587)		14,437	(108,017)	0
Common Units
Allocation of net loss subsequent to initial public offering attributable to:
Allocation of loss									$ 24,669	$ (54,326)
Net loss attributable to common and subordinated units per unit:
Per unit (basic) (in usd per share)	$ 0.01	$ 0.24	$ (0.08)	$ 0.09	$ (0.27)	$ 0.27	$ (0.56)		$ 0.26	$ (0.56)
Weighted average units outstanding (basic)									96,073	96,182
Per unit (diluted) (in usd per share)	0.01	0.24	(0.08)	0.09	(0.27)	0.27	(0.56)		$ 0.26	$ (0.56)
Weighted average units outstanding (diluted)									96,243	96,182
Subordinated Units
Allocation of net loss subsequent to initial public offering attributable to:
Allocation of loss									$ (10,232)	$ (53,691)
Net loss attributable to common and subordinated units per unit:
Per unit (basic) (in usd per share)	(0.11)	0.14	(0.15)	0.01	(0.27)	0.27	(0.56)		$ (0.11)	$ (0.56)
Weighted average units outstanding (basic)									95,138	95,057
Per unit (diluted) (in usd per share)	$ (0.11)	$ 0.14	$ (0.15)	$ 0.01	$ (0.27)	$ 0.27	$ (0.56)		$ (0.11)	$ (0.56)
Weighted average units outstanding (diluted)									95,138	95,057
Predecessor
Earnings Per Share Basic [Line Items]
NET INCOME (LOSS)									$ 0	$ 450	$ 169,187