Basis of Presentation and Summary of Significant Accounting Policies (Schedule of Net Income Reconciliation) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended											4 Months Ended	8 Months Ended	12 Months Ended
	Sep. 30, 2016	Aug. 31, 2016	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2016	Aug. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share Basic [Line Items]
Net loss														$ (33,314)
Net loss attributable to common limited partners and the general partner	$ (7,380)		$ (25,268)			$ (293,013)	[1]	$ (565,147)	[1]	$ (51,044)	[1]	$ 83,919	[1]	$ (32,648)
Less: General partner’s interest						(5,860)		(11,303)		(431)		3,575				$ (14,019)	$ 2,571
Net loss attributable to common limited partners						$ (287,153)		$ (553,844)		$ (50,613)		$ 80,344				(811,266)	(628,926)
Predecessor
Earnings Per Share Basic [Line Items]
Net loss															$ (177,430)	(808,816)	(607,088)
Preferred member / limited partner dividends															(4,013)	(16,469)	(19,267)
Net loss attributable to common limited partners and the general partner															(181,443)	(825,285)	(626,355)
Less: General partner’s interest		$ (973)		$ (2,838)	$ 182										(3,629)	(14,019)	2,571
Net loss attributable to common limited partners		$ (47,651)		$ (139,096)	$ 8,933										(177,814)	(811,266)	(628,926)
Net loss utilized in the calculation of net loss attributable to common limited partners per unit - Basic															(177,814)	(811,266)	(628,926)
Net loss utilized in the calculation of net loss attributable to common limited partners per unit - Diluted															$ (177,814)	$ (811,266)	$ (628,926)

[1] Includes asset impairment charges of $672.2 million and $294.4 million in the third and fourth quarters of 2015, respectively.