DISTRIBUTIONS FROM NUSTAR ENERGY Table 2 (Details) - NuStar Energy [Member] - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 27, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Distributions from NuStar Energy (dates and totals)
NuStar Energy's cash distributions per unit applicable to limited partners (distribution earned)		$ 1.095	$ 1.095	$ 1.095
NuStar Energy's total cash distributions (distribution earned)		$ 98,051	$ 98,051	$ 98,051
NuStar Energy's distribution date of record (distribution earned)		May 09, 2016	Feb. 08, 2016
NuStar Energy's distribution payment date (distribution earned)		May 13, 2016	Feb. 12, 2016
Subsequent Event [Member]
Distributions from NuStar Energy (dates and totals)
NuStar Energy's distribution announcement date (distribution earned)	Apr. 27, 2016