DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) segment	Sep. 30, 2017 USD ($)	Dec. 31, 2017
Description of Business [Line Items]
Number of reportable segments | segment			1
Other non-service component of net periodic benefit costs	$ 278	$ (103)	$ 833	$ (305)
Cost of products and other	6,876,698	4,411,809	18,578,457	13,326,396
Less: net income (loss) attributable to noncontrolling interests	35	(6)	43	374
Income tax (benefit) expense	(719)	(4,292)	(5,403)	2,040
Operating expenses (excluding depreciation and amortization expense as reflected below)	409,600	389,504	1,223,798	1,224,757
Depreciation and amortization expense	83,353	70,338	242,960	181,238
Cost of Revenue	7,369,651	4,871,651	20,045,215	14,732,391
General and administrative expenses (excluding depreciation and amortization expense as reflected below)	64,869	54,677	174,895	130,044
Depreciation and amortization expense	2,594	2,572	7,871	10,355
Income from equity method investee	4,725	3,799	13,110	11,218
(Gain) loss on sale of assets	(43,745)	28	(43,072)	940
Costs and Expenses	$ 7,388,644	$ 4,925,129	$ 20,171,799	$ 14,862,512
PBF Energy [Member] | Class A Common Stock [Member]
Description of Business [Line Items]
Percentage of ownership in PBF LLC	99.00%		99.00%		96.70%
Torrance Valley Pipeline Company [Member]
Description of Business [Line Items]
Ownership percentage	50.00%		50.00%
Torrance Valley [Member]
Description of Business [Line Items]
(Gain) loss on sale of assets	$ 43,761