Earnings Per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net loss	$ (4,759,811)	$ (451,809)	$ (691,337)
Allocated to participating securities	(3,039)	(7,117)	(5,935)
Net loss attributable to common unitholders	$ (4,762,850)	$ (458,926)	$ (697,272)
Earnings per share reconciliation
Basic net loss per unit	$ (13.87)	$ (1.40)	$ (2.94)
Diluted net loss per unit	$ (13.87)	$ (1.40)	$ (2.94)
Weighted average units outstanding
Basic weighted average units outstanding	343,323	328,918	237,544
Dilutive effect of unit equivalents	0	0	0
Diluted weighted average units outstanding	343,323	328,918	237,544
Unit options and warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average anti-dilutive unit equivalents excluded from computation of earnings per unit (in units)	4,000	6,000	4,000