DEFERRED CHARGES AND OTHER ASSETS, NET (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred turnaround costs, net	$ 138,212	$ 119,383
Catalyst	91,557	88,964
Deferred financing costs, net	25,267	26,541
Restricted cash	13,617	12,117
Linefill	9,667	9,636
Intangible assets, net	492	653
Other	5,331	5,185
Deferred charges and other assets	$ 284,143	$ 262,479