Net Income/(Loss) Per Limited Partner Unit (Calculation Of Net Loss Per Limited Partner Unit) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Schedule Of Earnings Per Partner Unit [Line Items]
Net income	$ 61,628		$ 79,751		$ 88,295
Less: Net income (loss) attributable to noncontrolling interest	(663)
Net income (loss) attributable to QR Energy, LP	60,965		79,751		88,295
Net income (loss) attributable to predecessor operations			(37,350)		(76,249)
Distributions to unitholders	(152,227)		(79,427)		(66,571)
Amortization of preferred unit discount	(15,553)		(14,930)		(3,638)
Net income (loss) available to other unitholders	18,574		13,471		4,984
General partner's interest in net income (loss)	3,391		6,149		1,575
Limited partners' interest in net income (loss)	15,183		7,322		3,409
Common unitholders' interest in net income (loss)	15,183		6,570		2,730
Subordinated unitholders' interest in net income (loss)			752		679
Weighted average preferred units outstanding	16,666,667		16,666,667		4,109,589
Weighted average Class B Units outstanding	5,088,831		0		0
Limited Partners - Public And Affiliated Common Units [Member]
Schedule Of Earnings Per Partner Unit [Line Items]
Common unitholders' (basic) (in dollars per unit)	$ 0.26		$ 0.19		$ 0.10
Common unitholders' (diluted) (in dollars per unit)	$ 0.26		$ 0.19		$ 0.10
Common units (basic) (in units)	58,524,000		35,132,000		28,728,000
Common units (diluted) (in units)	58,524,000	[1],[2]	35,282,000	[1],[2]	28,728,000	[1],[2]
Limited Partners-Affiliated - Subordinated [Member]
Schedule Of Earnings Per Partner Unit [Line Items]
Net income			2,369		682
Distributions to unitholders			(10,362)		(12,557)
Subordinated units (basic and diluted) (in dollars per unit)			$ 0.11		$ 0.10
Subordinated units (basic and diluted) (in units)			6,970,000		7,146,000
Class B Units [Member]
Schedule Of Earnings Per Partner Unit [Line Items]
Distributions to unitholders	(12,838)
Class B Convertible Unitholder [Member]
Schedule Of Earnings Per Partner Unit [Line Items]
Net income	12,839
Distributions to unitholders	(12,839)
Weighted average Class B Units outstanding			150,896
Class C Convertible Preferred [Member]
Schedule Of Earnings Per Partner Unit [Line Items]
Distributions to unitholders	$ (14,000)		$ (14,000)		$ (3,424)

[1] For the years ended December 31, 2013, 2012 and 2011, we had weighted average preferred units outstanding of 16,666,667, 16,666,667, and 4,109,589, respectively. For the years ended December 31, 2013, 2012 and 2011, we had 5,088,831, zero, and zero, respectively, of weighted average Class B units outstanding. The preferred and Class B units are contingently convertible into common units and could potentially dilute earnings per unit in the future. The preferred and Class B units have been excluded in the diluted earnings per unit calculation for the years ended December 31, 2013, 2012 and 2011 as they were antidilutive for the period.

[2] In connection with the expiration of the subordination period on December 22, 2012, the general partner had the right to convert all or a portion of the fourth quarter management incentive fee into Class B common units. In 2012, we had weighted average Class B units of 150,896 which were contingently convertible. The Class B units were included in the 2012 diluted earnings per unit calculation as they were dilutive to the period.