Summary of Significant Accounting Policies - Other Narrative (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General partner's equity, percent	0.03%	0.03%
Term of right to receive distributions of available cash after quarter end	45 days
Minimum percentage of unitholder approval to remove general partner	66.667%
Term of right to receive information reasonably required for tax reporting purposes after close of year	90 days