INCOME TAXES (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) state	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Class of Stock [Line Items]
Number of subsidiaries acquired | state		2
Deferred income taxes		$ (12,526)	$ 19,802	$ 0
Current income tax expense		$ 1,743	$ 3,887	$ 648
Restatement Adjustment [Member] | Prior Period Error Correction [Member] | PBF Energy Limited [Member]
Class of Stock [Line Items]
Deferred income taxes	$ 30,602
Current income tax expense	$ 121