Related Party Transactions (Narrative) (Details) (USD $)	1 Months Ended	12 Months Ended				1 Months Ended	12 Months Ended		12 Months Ended			1 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended						1 Months Ended	3 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended
	Feb. 28, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Omnibus Agreement [Member]	Dec. 31, 2012 Fund [Member] QRE GP [Member]	Dec. 31, 2013 Fund [Member] QRE GP [Member]	Dec. 31, 2013 QRE GP [Member]	Dec. 31, 2013 Restricted Units [Member]	Dec. 31, 2012 Restricted Units [Member]	Dec. 31, 2011 Restricted Units [Member]	Dec. 31, 2012 General Partner [Member] QRE GP [Member]	Dec. 31, 2012 General Partner [Member] QRE GP [Member]	Dec. 31, 2013 General Partner [Member] QRE GP [Member]	Dec. 31, 2012 Limited Partner [Member] Fund [Member]	Dec. 31, 2013 Limited Partner [Member] Fund [Member]	Dec. 31, 2013 Limited Partner [Member] Fund [Member] QRE GP [Member]	Dec. 31, 2013 Limited Partner [Member] QRE GP [Member]	Dec. 31, 2013 Limited Partner [Member] QRE GP [Member]	Dec. 31, 2013 Limited Partners-Affiliated - Common [Member]	Dec. 31, 2012 Limited Partners-Affiliated - Common [Member]	Mar. 31, 2013 Class B Units [Member]	Mar. 31, 2013 Class B Units [Member]	Dec. 31, 2013 Class B Units [Member]	Mar. 04, 2013 Class B Units [Member]	Dec. 28, 2012 December 2012 Transferred Properties [Member]	Dec. 31, 2013 December 2012 Transferred Properties [Member]	Oct. 03, 2011 October 2011 Purchase Agreement [Member]	Dec. 31, 2013 October 2011 Purchase Agreement [Member]
Related Party Transaction [Line Items]
General partner, outstanding (in units)		51,036	51,036					51,036
Ownership percentage						100.00%	100.00%					0.10%	0.10%	0.10%	31.70%	29.20%	29.20%	7.50%	7.50%
Limited partners unitholders, outstanding (in units)																				7,145,866	7,145,866				6,133,558
Class B convertible unitholders, outstanding (in units)		6,133,558	0																					6,133,558	6,133,558
Quarterly administration fee equal to percentage of adjusted EBITDA due to QRM		3.50%	3.50%
Quarterly administration fee for QRM		$ 33,000,000	$ 7,300,000	$ 2,500,000
General and administrative expense allocated from the Fund			38,076,000	34,721,000
Percentage of management fee converted to Class B units	80.00%	80.00%																					80.00%
Issue of units in lieu of management fee																						6,133,558
Percentage of distribution equal or exceed minimum quarterly distributions		115.00%
Target distribution per unit		0.4744
Percentage of quarterly management fee incentive base		0.25%
Management incentive fee recognized		3,400,000	6,100,000	1,600,000
Management fee paid		700,000
Management fee conversion term, gross management incentive fee base		115.00%
Percentage of first option properties that need to be proved developed reserves					70.00%
Equity capital of Fund					113,200,000
Possible participation in each acquisition opportunity					25.00%
Indemnification threshold per claim					75,000
Total indemnification amount					4,000,000
Date of acquisition																											Dec. 28, 2012		Oct. 03, 2011
Aggregate purchase price																										143,600,000		578,800,000
Effective date of acquisition																													Oct. 01, 2011
Assumed long-term debt																										115,000,000		227,000,000
Cash paid for acquisition																										28,600,000
Number of shares issued for acquisition of oil and gas properties																												16,666,667
Restricted unit awards granted									1,022,311	668,323	271,364
Restricted unit awards fair value									$ 11,900,000	$ 9,000,000	$ 4,800,000