Income (Loss) Per Limited Partner Unit (Schedule of Antidilutive Securities Excluded from Computations of Earnings Per Share) (Details)	4 Months Ended					3 Months Ended		4 Months Ended	9 Months Ended	3 Months Ended				4 Months Ended		9 Months Ended		3 Months Ended		4 Months Ended	9 Months Ended	4 Months Ended	9 Months Ended
	May 25, 2010 Predecessor [Member] Common Unit Options [Member]	May 25, 2010 Predecessor [Member] Phantom Units [Member]		May 25, 2010 Predecessor [Member] Series A Preferred Units [Member]	May 25, 2010 Predecessor [Member] Restricted Non-Vested Common Units [Member]	Sep. 30, 2011 Successor [Member] Common Unit Options [Member]	Sep. 30, 2010 Successor [Member] Common Unit Options [Member]	Sep. 30, 2010 Successor [Member] Common Unit Options [Member]	Sep. 30, 2011 Successor [Member] Common Unit Options [Member]	Sep. 30, 2011 Successor [Member] Phantom Units [Member]		Sep. 30, 2010 Successor [Member] Phantom Units [Member]		Sep. 30, 2010 Successor [Member] Phantom Units [Member]		Sep. 30, 2011 Successor [Member] Phantom Units [Member]		Sep. 30, 2011 Successor [Member] Series A Preferred Units [Member]	Sep. 30, 2010 Successor [Member] Series A Preferred Units [Member]	Sep. 30, 2010 Successor [Member] Series A Preferred Units [Member]	Sep. 30, 2011 Successor [Member] Series A Preferred Units [Member]	Sep. 30, 2010 Successor [Member] Restricted Non-Vested Common Units [Member]	Sep. 30, 2011 Successor [Member] Restricted Non-Vested Common Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	298,400	369,346	[1]	4,584,192	396,918	0	0	288,500	0	0	[1]	0	[1]	322,602	[1]	0	[1]	0	4,584,192	4,584,192	0	0	0

[1] Amount assumes maximum conversion rate for market condition awards.