DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)	Dec. 31, 2017
Description of Business [Line Items]
Other non-service component of net periodic benefit costs	$ 277	$ (101)	$ 555	$ (202)
Cost of products and other	6,512,153	4,662,833	$ 11,701,759	8,914,587
Number of Reportable Segments | segment			1
Less: net income attributable to noncontrolling interests	76	267	$ 8	380
Income tax (benefit) expense	(3,983)	5,898	(4,684)	6,332
Operating expenses (excluding depreciation and amortization expense as reflected below)	402,751	398,485	814,198	835,253
Depreciation and amortization expense	82,829	56,973	159,607	110,901
Cost of Revenue	6,997,733	5,118,291	12,675,564	9,860,741
General and administrative expenses (excluding depreciation and amortization expense as reflected below)	51,756	34,904	110,026	75,367
Depreciation and amortization expense	2,563	6,020	5,277	7,782
Income from equity method investee	4,363	3,820	8,385	7,419
Loss on sale of assets	594	29	673	912
Costs and Expenses	$ 7,048,283	5,155,424	$ 12,783,155	9,937,383
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%
Scenario, Previously Reported [Member]
Description of Business [Line Items]
Cost of products and other		4,662,833		8,914,587
Operating expenses (excluding depreciation and amortization expense as reflected below)		398,485		835,253
Depreciation and amortization expense		0
General and administrative expenses (excluding depreciation and amortization expense as reflected below)		34,904		75,367
Depreciation and amortization expense		62,993		118,683
Income from equity method investee		(3,820)		(7,419)
Loss on sale of assets		(29)		(912)
Costs and Expenses		5,155,424		9,937,383
Scenario, Adjustment [Member]
Description of Business [Line Items]
Cost of products and other		0
Operating expenses (excluding depreciation and amortization expense as reflected below)		0
Depreciation and amortization expense		56,973		110,901
General and administrative expenses (excluding depreciation and amortization expense as reflected below)		0
Depreciation and amortization expense		(56,973)		$ (110,901)
Income from equity method investee		0
Loss on sale of assets		$ 0