INVESTMENT IN NUSTAR ENERGY Table 2 (Details) (NuStar Energy [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
NuStar Energy [Member]
Statement of Income Information:
Revenues	$ 5,955,676	$ 6,271,815	$ 4,403,061
Operating (loss) income	(30,079)	301,812	302,557
(Loss) income from continuing operations	(178,132)	211,487	238,970
(Loss) income from discontinued operations, net of tax	(49,105)	10,114	0
Net (loss) income	$ (227,237)	$ 221,601	$ 238,970