Related Party Transactions (Narrative) (Details) (USD $)	3 Months Ended	6 Months Ended		12 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended			12 Months Ended	6 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended
	Mar. 31, 2013	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Jun. 30, 2013 Allocated General And Andminstative Expense From QRM [Member]	Jun. 30, 2012 Allocated General And Andminstative Expense From QRM [Member]	Jun. 30, 2013 Allocated General And Andminstative Expense From QRM [Member]	Jun. 30, 2012 Allocated General And Andminstative Expense From QRM [Member]	Jun. 30, 2013 Quarterly Administrative Fee Included In Allocated Adminstative Expense [Member]	Jun. 30, 2013 Quarterly Administrative Fee Included In Allocated Adminstative Expense [Member]	Jun. 30, 2013 QRE GP [Member]	Jun. 30, 2013 Restricted Units [Member]	Dec. 31, 2012 Restricted Units [Member]	Jun. 30, 2013 General Partner [Member] QRE GP [Member]	Jun. 30, 2013 Limited Partner [Member] QRE GP [Member]	Jun. 30, 2013 Limited Partner [Member] Fund [Member]	Jun. 30, 2013 Limited Partners-Affiliated - Common [Member]	Mar. 31, 2013 Class B Units [Member]	Jun. 30, 2013 Class B Units [Member] QRE GP [Member]	Sep. 30, 2013 Subsequent Event [Member]
Related Party Transaction [Line Items]
General partner, outstanding (in units)		51,036		51,036							51,036
Predecessor's affiliate ownership of the GP											100.00%
Ownership percentage														0.10%	7.50%	29.30%			7.50%
Limited partners unitholders, outstanding (in units)																	7,145,866
Class B convertible unitholders, outstanding (in units)		6,133,558		0
Quarterly administration fee equal to percentage of adjusted EBITDA due to QRM				3.50%
General and administrative expense allocated from the Fund			$ 18,019,000		$ 7,700,000	$ 11,300,000	$ 16,100,000	$ 21,600,000	$ 1,900,000	$ 3,600,000
Percentage of management fee converted to Class B units																		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%
Restricted unit awards granted												1,220,842	668,323
Management incentive fee incurred	$ 700,000	$ 700,000																		$ 1,300,000