Partners' Capital (Schedule Of Partners' Unit Activity) (Details)	9 Months Ended
	Sep. 30, 2014
Partners' Unit Capital Activity [Line Items]
Unit offerings	0
Class C Convertible Preferred Unitholders [Member]
Partners' Unit Capital Activity [Line Items]
Beginning balance	16,666,667
Buyout of general partner
Vested units awarded under our Long Term Incentive Performance Plan
Reduction in units to cover individuals' tax withholdings
Ending balance	16,666,667
General Partner [Member]
Partners' Unit Capital Activity [Line Items]
Beginning balance	51,036
Buyout of general partner	(51,036)
Vested units awarded under our Long Term Incentive Performance Plan
Reduction in units to cover individuals' tax withholdings
Class B Units [Member]
Partners' Unit Capital Activity [Line Items]
Beginning balance	6,133,558
Buyout of general partner
Vested units awarded under our Long Term Incentive Performance Plan
Reduction in units to cover individuals' tax withholdings
Ending balance	6,133,558
Limited Partners-Public Common [Member]
Partners' Unit Capital Activity [Line Items]
Beginning balance	51,483,263
Buyout of general partner
Vested units awarded under our Long Term Incentive Performance Plan	267,359
Reduction in units to cover individuals' tax withholdings	(55,787)
Ending balance	51,694,835
Limited Partners-Affiliated - Common [Member]
Partners' Unit Capital Activity [Line Items]
Beginning balance	7,145,866
Buyout of general partner
Vested units awarded under our Long Term Incentive Performance Plan
Reduction in units to cover individuals' tax withholdings
Ending balance	7,145,866