RELATED PARTY TRANSACTIONS (Details) $ in Millions								3 Months Ended			6 Months Ended
	Jan. 01, 2022 bbl	May 31, 2019 bbl / d	Apr. 24, 2019 USD ($)	Jan. 01, 2019 bbl / d	Apr. 16, 2018	Aug. 31, 2016 bbl / d	May 08, 2014 bbl / d	Jun. 30, 2019 USD ($)	Mar. 31, 2019	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Related Party Transaction [Line Items]
Number of Contract Renewals											2
Term of Renewal											5 years
PBF Logistics LP [Member] | Cost of Sales [Member]
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction | $								$ 74.7		$ 63.7	$ 146.0	$ 124.6
PBF Logistics LP [Member] | Amended and Restated Rail Agreement [Member]
Related Party Transaction [Line Items]
Term of Agreement							7 years 8 months
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity							125,000
PBF Logistics LP [Member] | Delaware City Pipeline Services Agreement [Member]
Related Party Transaction [Line Items]
Term of Agreement					2 years 5 months
PBF Logistics LP [Member] | Delaware City Terminaling Services Agreement [Member] | Scenario, Forecast [Member]
Related Party Transaction [Line Items]
Term of Agreement	4 years
Number of Contract Renewals	2
Term of Renewal	5 years
Oil And Gas Plant, Maximum Storage Capacity | bbl	95,000
PBF Logistics LP [Member] | Omnibus Agreement [Member] | General and Administrative Expense [Member]
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction | $								1.7		1.7	3.5	3.4
PBF Logistics LP [Member] | Services Agreement [Member] | General and Administrative Expense [Member]
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction | $								$ 2.2		$ 1.6	$ 4.3	$ 3.3
PBF Logistics LP [Member] | East Coast Storage Assets Terminal Storage Agreement [Member]
Related Party Transaction [Line Items]
Term of Agreement				8 years
Oil And Gas Plant, Maximum Storage Capacity				2,953,725
Torrance Valley Pipeline - South [Member] | PBF Logistics LP [Member] | Torrance Valley Pipeline Transportation Services Agreement [Member]
Related Party Transaction [Line Items]
Term of Agreement						10 years
Number of Contract Renewals						2
Term of Renewal						5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity						75,000
Torrance Valley Pipeline - South [Member] | PBF Logistics LP [Member] | Torrance Valley Pipeline Transportation Services Agreement [Member] | Amount Prior to Amendment [Member]
Related Party Transaction [Line Items]
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity		70,000
Torrance Valley Pipeline - South [Member] | PBF Logistics LP [Member] | Torrance Valley Pipeline Transportation Services Agreement [Member] | Updated Agreement Amount [Member]
Related Party Transaction [Line Items]
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity		75,000
Torrance Valley Pipeline Company LLC [Member]
Related Party Transaction [Line Items]
Business Combination, Consideration Transferred | $			$ 200.0
TVP Holding [Member] | Torrance Valley Pipeline Company LLC [Member]
Related Party Transaction [Line Items]
Wholly Owned Subsidiary, Percentage of Ownership									50.00%
PBF Logistics LP [Member] | Torrance Valley Pipeline Company LLC [Member]
Related Party Transaction [Line Items]
Wholly Owned Subsidiary, Percentage of Ownership		100.00%