Related Party Transactions (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended			12 Months Ended	9 Months Ended				3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Allocated General And Andminstative Expense From QRM [Member]	Sep. 30, 2012 Allocated General And Andminstative Expense From QRM [Member]	Sep. 30, 2013 Allocated General And Andminstative Expense From QRM [Member]	Sep. 30, 2012 Allocated General And Andminstative Expense From QRM [Member]	Sep. 30, 2013 Quarterly Administrative Fee Included In Allocated Adminstative Expense [Member]	Sep. 30, 2013 Quarterly Administrative Fee Included In Allocated Adminstative Expense [Member]	Sep. 30, 2013 QRE GP [Member]	Sep. 30, 2013 Restricted Units [Member]	Dec. 31, 2012 Restricted Units [Member]	Sep. 30, 2013 General Partner [Member] QRE GP [Member]	Sep. 30, 2013 Limited Partner [Member] QRE GP [Member]	Sep. 30, 2013 Limited Partner [Member] Fund [Member]	Sep. 30, 2013 Limited Partners-Affiliated - Common [Member]	Mar. 31, 2013 Class B Units [Member]	Dec. 31, 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%	29.20%
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				$ 26,785,000		$ 9,000,000	$ 8,800,000	$ 25,100,000	$ 26,800,000	$ 1,800,000	$ 5,400,000
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													1,086,958	668,323
Management incentive fee recognized	$ 1,300,000	$ 700,000	$ 2,000,000																	$ 1,400,000
Management fee conversion term, gross management incentive fee base			115.00%