Equity and Distributions, Distributions (Details) - Cash Distribution [Member] - $ / shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
First Quarter 2016 Distribution [Member]
Distributions to Partners [Abstract]
Distribution Per Common Unit (in dollars per unit)		$ 0.3950
Record Date		Apr. 29, 2016
Payment Date		May 06, 2016
Second Quarter 2016 Distribution [Member]
Distributions to Partners [Abstract]
Distribution Per Common Unit (in dollars per unit)		$ 0.4000
Record Date		Jul. 29, 2016
Payment Date		Aug. 05, 2016
First Quarter 2017 Distribution [Member]
Distributions to Partners [Abstract]
Distribution Per Common Unit (in dollars per unit)	$ 0.4150
Record Date	Apr. 28, 2017
Payment Date	May 08, 2017
Second Quarter 2017 Distribution [Member]
Distributions to Partners [Abstract]
Distribution Per Common Unit (in dollars per unit)	$ 0.4200
Record Date	Jul. 31, 2017
Payment Date	Aug. 07, 2017