DISTRIBUTIONS FROM NUSTAR ENERGY Table 1 (Details) (NuStar Energy [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
NuStar Energy [Member]
The allocation of NuStar Energy’s cash distributions earned for the periods indicated among its general and limited partners
General partner interest	$ 1,961		$ 1,961
General partner incentive distribution	10,805		10,805
Total general partner distribution	12,766		12,766
Limited partner distribution	11,316		11,211
Total distributions to NuStar GP Holdings	24,082		23,977
Public unitholders’ distributions	73,969		74,074
Total cash distributions	$ 98,051	$ 98,051	$ 98,051
Cash distributions per unit applicable to limited partners	$ 1.095	$ 1.095	$ 1.095