INVENTORIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Inventory [Line Items]
Crude oil and feedstocks	$ 1,218,399		$ 1,218,399			$ 1,137,605
Refined products and blendstocks	1,335,853		1,335,853			1,098,746
Warehouse stock and other	87,846		87,846			55,257
Inventory, Gross	2,642,098		2,642,098			2,291,608
Lower of cost or market reserve	(796,503)	$ 771,257	(796,503)	$ 771,257	$ 900,493	(1,117,336)	$ 562,944	$ (690,110)
Inventories	1,845,595		1,845,595			1,174,272
Operating Income (Loss)	(101,182)	(65,073)	(280,437)	(468,736)
Titled Inventory [Member]
Inventory [Line Items]
Crude oil and feedstocks	1,218,399		1,218,399			1,137,605
Refined products and blendstocks	976,556		976,556			687,389
Warehouse stock and other	87,846		87,846			55,257
Inventory, Gross	2,282,801		2,282,801			1,880,251
Lower of cost or market reserve	(677,448)		(677,448)			(966,564)
Inventories	1,605,353		1,605,353			913,687
Inventory Supply and Offtake Arrangements [Member]
Inventory [Line Items]
Crude oil and feedstocks	0		0			0
Refined products and blendstocks	359,297		359,297			411,357
Warehouse stock and other	0		0			0
Inventory, Gross	359,297		359,297			411,357
Lower of cost or market reserve	(119,055)		(119,055)			(150,772)
Inventories	240,242		240,242			$ 260,585
Scenario, Adjustment [Member]
Inventory [Line Items]
Operating Income (Loss)	$ 103,990	$ 208,313	$ 320,833	$ 81,147