INVESTMENT IN NUSTAR ENERGY Table 2 (Details) - NuStar Energy [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income Information:
Revenues	$ 405,703	$ 554,944
Operating income	94,565	99,281
Income from continuing operations	57,401	127,125
Income from discontinued operations, net of tax	0	774
Net income	$ 57,401	$ 127,899