INVESTMENT IN NUSTAR ENERGY Table 4 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
NuStar GP Holdings’ Equity in (Loss) Earnings of NuStar Energy
General partner interest	$ (6,338)	$ (5,356)	$ 3,703
General partner incentive distribution	43,220	41,242	36,319
General partner’s interest in earnings and incentive distributions of NuStar Energy	36,882	35,886	40,022
Limited partner interest in (loss) earnings of NuStar Energy	(40,739)	(37,580)	28,645
Amortization of step-up in basis related to NuStar Energy’s assets and liabilities	(2,884)	(2,884)	(2,884)
Equity in (loss) earnings of NuStar Energy	$ (6,741)	$ (4,578)	$ 65,783