STOCK-BASED COMPENSATION (Additional Information) (Details) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
PBF LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 12,016,000	$ 10,577,000
Total intrinsic value of stock options exercised during period	2,301,000	461,000	$ 3,452,000
Unrecognized compensation expense	$ 0	$ 0
PBF LLC [Member] \| Series A Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage	25.00%
Exercise price per unit		$ 10.00
Warrants exercised in period	0	0
Non-compensatory warrants outstanding	32,719	32,719
PBF LLC [Member] \| Series B Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage	25.00%
Vesting period	3 years
PBF LLC [Member] \| Warrant [Member] \| Series A Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Expiration period	10 years
PBF LLC [Member] \| Employee Stock Option [Member] \| Series A Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights percentage	33.30%
Expiration period	10 years
PBF Energy Inc. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Granted in period	1,638,075	1,792,000	1,899,500
Expiration period	10 years
PBF Energy Inc. [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total estimated fair value, granted in period	$ 10,913,000	$ 11,346,000
Weighted average fair value per unit	$ 6.66	$ 6.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 56,656,000	$ 11,676,000
Total intrinsic value of stock options exercisable	23,665,000	3,914,000
Total intrinsic value of stock options exercised during period	2,365,000	$ 5,000
Unrecognized compensation expense	$ 21,809,000
PBF Energy Inc. [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted in period	762,425	360,820	247,720

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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