NET INCOME PER SHARE OF PBF ENERGY (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic										$ 1,043	$ 0	$ 0
Effective tax rate										39.60%	39.10%	39.60%
Net Income (Loss) Available to Common Stockholders, Basic										$ 414,474	$ 170,811	$ 146,401
Basic Earnings Per Share:
Numerator for basic net income per Class A common share-net income attributable to PBF Energy		$ 241,892	$ 314,365	$ (109,663)	$ (31,077)	$ 54,558	$ 42,111	$ 103,530	$ (29,388)	$ 415,517	$ 170,811	$ 146,401
Denominator for basic net income per Class A common share-weighted average shares (in shares)	[1]									109,779,407	98,334,302	88,106,999
Basic net income attributable to PBF Energy per Class A common share (in usd per share)										$ 3.78	$ 1.74	$ 1.66
Diluted Earnings Per Share:
Net income attributable to PBF Energy		$ 241,892	$ 314,365	$ (109,663)	$ (31,077)	$ 54,558	$ 42,111	$ 103,530	$ (29,388)	$ 415,517	$ 170,811	$ 146,401
Plus: Net income attributable to noncontrolling interest	[1]									16,746	14,903	14,257
Less: Income tax on net income per Class A common share	[1]									(6,633)	(5,821)	(5,646)
Numerator for diluted net income per Class A common share	[1]									$ 424,587	$ 179,893	$ 155,012
Denominator for basic net income per Class A common share-weighted average shares (in shares)	[1]									109,779,407	98,334,302	88,106,999
Effect of dilutive securities:
Conversion of PBF LLC Series A Units	[1]									3,823,783	4,865,133	5,530,568
Common stock equivalents (in shares)	[1],[2]									295,655	407,274	501,283
Denominator for diluted net income per common share-adjusted weighted average shares (in shares)										113,898,845	103,606,709	94,138,850
Diluted net income attributable to PBF Energy per Class A common share (in usd per share)		$ 2.14	$ 2.85	$ (1.01)	$ (0.29)	$ 0.54	$ 0.43	$ 1.06	$ (0.30)	$ 3.73	$ 1.74	$ 1.65
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common stock excluded from computation of dilutive earnings per share (in shares)										6,820,275	5,701,750	2,943,750

[1] The net income attributable to PBF Energy, used in the numerator of the diluted earnings per share calculation is adjusted to reflect the net income, as well as the corresponding income tax (based on a 39.6%, 39.1% and 39.6% statutory tax rate for the years ended December 31, 2017, 2016 and 2015) attributable to the converted units.

[2] . Common stock equivalents exclude the effects of options and warrants to purchase 6,820,275, 5,701,750 and 2,943,750 shares of PBF Energy Class A common stock because they are anti-dilutive for the years ended December 31, 2017, 2016 and 2015, respectively.