INVESTMENT IN NUSTAR ENERGY Table 2 (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement of Income (Loss) Information:
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	$ 8,366	$ (11,698)
NuStar Energy [Member]
Statement of Income (Loss) Information:
Revenues	999,710	1,609,405
Operating income (loss)	59,462	59,019
Equity Method Investment, Summarized Financial Information, Income (Loss) from Continuing Operations before Extraordinary Items	16,038	37,952
Net income (loss)	$ 24,404	$ 26,254