Related Party Transactions (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended				3 Months Ended				12 Months Ended	3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Mar. 31, 2014 Allocated General And Andminstative Expense From QRM [Member]	Mar. 31, 2013 Allocated General And Andminstative Expense From QRM [Member]	Mar. 31, 2014 Fund [Member] QRE GP [Member]	Mar. 31, 2014 Restricted Units [Member]	Dec. 31, 2013 Restricted Units [Member]	Mar. 31, 2014 General Partner [Member] QRE GP [Member]	Mar. 31, 2014 Limited Partner [Member] Fund [Member]	Mar. 31, 2014 Limited Partner [Member] QRE GP [Member]	Mar. 31, 2014 Limited Partners-Affiliated - Common [Member]	Mar. 31, 2013 Class B Units [Member]
Related Party Transaction [Line Items]
Ownership percentage							100.00%			0.10%	29.30%	7.50%
Limited partners unitholders, outstanding (in units)													7,145,866
Class B convertible unitholders, outstanding (in units)	6,133,558			6,133,558
General and administrative expense allocated from the Fund					$ 7.6	$ 8.4
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
Management incentive fee recognized	$ 1.4	$ 0	$ 0.7
Restricted unit awards granted								999,117	1,022,311