DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Details) $ in Thousands				12 Months Ended
	Dec. 19, 2016 USD ($) shares	Oct. 13, 2015 USD ($) shares	May 14, 2014 shares	Dec. 31, 2017 USD ($) reportable_segment shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Aug. 17, 2016	Apr. 05, 2016	May 15, 2015	Feb. 06, 2015 shares	Dec. 31, 2014 shares
Description of Business [Line Items]
Number Of Reporting Segments | reportable_segment				2
Proceeds from sale of Class A common stock, net of underwriters’ discount | $				$ 0	$ 275,300	$ 344,000
Shares outstanding	113,124,949	102,505,208		114,332,995	113,124,949	102,767,291				91,134,120	91,151,815
Ownership Percentage of Equity Held	100.00%	100.00%		100.00%	100.00%	100.00%				100.00%	100.00%
Percent of tax benefit received from increases in tax basis paid to stockholders				85.00%
Limited Partners' Capital Account, Ownership Percentage				100.00%	100.00%	100.00%	100.00%	100.00%	100.00%		100.00%
PBF Logistics LP [Member] | Common Units [Member]
Description of Business [Line Items]
Partners' Capital Account, Units, Sold in Public Offering			2,875,000
PBF LLC [Member] | Series C Units [Member]
Description of Business [Line Items]
Shares outstanding				110,586,762
PBF LLC [Member] | Series A Units [Member]
Description of Business [Line Items]
Shares outstanding	4,120,902	5,111,358		3,767,464	3,920,902	4,985,358				5,366,043	9,170,696
Ownership Percentage of Equity Held	3.60%	5.00%		3.30%	3.50%	4.90%				5.90%	10.10%
PBF Energy Inc. [Member] | Class A Common Stock [Member]
Description of Business [Line Items]
Ownership Percentage of Equity Held	96.40%			96.70%	96.50%	95.10%
PBF Energy [Member] | Class A Common Stock [Member]
Description of Business [Line Items]
Shares outstanding	109,004,047	97,393,850		110,565,531	109,204,047	97,781,933				85,768,077	81,981,119
Ownership Percentage of Equity Held		95.00%			96.50%					94.10%	89.90%
IPO [Member] | PBF Logistics LP [Member] | Common Units [Member]
Description of Business [Line Items]
Partners' Capital Account, Units, Sold in Public Offering			15,812,500
Secondary Public Offering [Member] | PBF LLC [Member] | Series C Units [Member]
Description of Business [Line Items]
Public offering (in shares)						3,804,653
Secondary Public Offering [Member] | PBF LLC [Member] | Series A Units [Member]
Description of Business [Line Items]
Public offering (in shares)						(3,804,653)
Over-Allotment Option [Member] | PBF Energy Inc. [Member] | Class A Common Stock [Member]
Description of Business [Line Items]
Public offering (in shares)		1,500,000
Public Offering [Member] | PBF LLC [Member] | Series C Units [Member]
Description of Business [Line Items]
Public offering (in shares)					10,000,000	11,500,000
Public Offering [Member] | PBF Energy Inc. [Member] | Class A Common Stock [Member]
Description of Business [Line Items]
Public offering (in shares)	10,000,000	11,500,000
Proceeds from sale of Class A common stock, net of underwriters’ discount | $	$ 274,300	$ 344,000
Limited Partner [Member] | PBF LLC [Member]
Description of Business [Line Items]
Limited Partners' Capital Account, Ownership Percentage				44.10%	44.20%	53.70%	44.60%	49.50%	53.90%		52.10%