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Units represent shares of ownership of the general, limited, and preferred partners.","units":{"shares":[{"start":"2013-01-01","end":"2013-09-30","val":3373.705,"accn":"0001193125-14-410865","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13"},{"start":"2014-01-01","end":"2014-03-31","val":862.466,"accn":"0001193125-14-199202","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1308.69,"accn":"0001193125-14-308460","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-13"},{"start":"2014-01-01","end":"2014-09-30","val":2102.939,"accn":"0001193125-14-410865","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13"}]}},"PartnersCapitalAccountUnitsRedeemed":{"label":"Partners' Capital Account, Units, Redeemed","description":"The number of units redeemed during the year of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.","units":{"shares":[{"start":"2012-01-01","end":"2012-12-31","val":4568.748,"accn":"0001193125-15-111358","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-30","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":5014.044,"accn":"0001193125-14-410865","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13"},{"start":"2013-01-01","end":"2013-12-31","val":7400.191,"accn":"0001193125-15-111358","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-30","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":4374.73,"accn":"0001193125-15-185924","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":6450.635,"accn":"0001193125-15-288030","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-09-30","val":7476.804,"accn":"0001193125-14-410865","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-13"},{"start":"2014-01-01","end":"2014-12-31","val":8530.061,"accn":"0001193125-15-111358","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-30","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":729.435,"accn":"0001193125-15-185924","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1440.369,"accn":"0001193125-15-288030","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"}]}},"PartnersCapitalAccountUnitsSaleOfUnits":{"label":"Partners' Capital Account, Units, Sale of Units","description":"Total units issued during the year due to the sale of units. 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