SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		6 Months Ended
	Aug. 02, 2019	Aug. 01, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Subsequent Event [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property			$ (0.8)	$ (0.6)	$ (0.8)	$ (0.7)
Subsequent Event [Member] | PBF Energy [Member] | Class A Common Stock [Member]
Subsequent Event [Line Items]
Dividends declared per share		$ 0.3
Torrance Refinery [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	$ 36.3