DISTRIBUTIONS FROM NUSTAR ENERGY Table 2 (Details) - NuStar Energy [Member] - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 24, 2017	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
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)		$ 117,168	$ 98,971	$ 98,051
NuStar Energy's distribution date of record (distribution earned)		May 08, 2017	Feb. 08, 2017
NuStar Energy's distribution payment date (distribution earned)		May 12, 2017	Feb. 13, 2017
Subsequent Event [Member]
Distributions from NuStar Energy (dates and totals)
NuStar Energy's distribution announcement date (distribution earned)	Apr. 24, 2017