DEFERRED CHARGES AND OTHER ASSETS, NET (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred turnaround costs, net	$ 183,618	$ 204,987
Catalyst, net	71,516	77,322
Deferred financing costs, net	25,006	30,128
Linefill	10,230	10,230
Restricted cash	1,500	1,521
Intangible assets, net	231	357
Other	9,830	5,972
Deferred charges and other assets	$ 301,931	$ 330,517