COMMITMENTS AND CONTINGENCIES (Details) gallon in Millions							1 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 10, 2017 USD ($)	Feb. 14, 2017 USD ($)	Jan. 13, 2017 group	Jul. 01, 2016 USD ($)	Mar. 01, 2011	Feb. 03, 2011 USD ($)	Feb. 28, 2017 USD ($)	Nov. 30, 2016	Mar. 31, 2017	Jun. 30, 2017 USD ($) ppm	Dec. 31, 2014 location gallon shipment	Dec. 31, 2010 ppm	Dec. 31, 2016 USD ($)
Loss Contingencies [Line Items]
Percent of tax benefit received from increases in tax basis paid to stockholders										85.00%
Number Of Days Barge Shipments Made											15 days
PBF Energy [Member] | Class A Common Stock [Member]
Loss Contingencies [Line Items]
Percentage of ownership in PBF LLC										96.60%			96.50%
Environmental Issue [Member]
Loss Contingencies [Line Items]
Environmental liability										$ 11,117,000			$ 10,792,000
Discount rate used for environmental liability assessment										8.00%
Maximum amount of sulfur allowed in heating oil (in ppm) | ppm										10
Public Utilities, Description of Specific Regulatory Liabilities										80
Loss Contingency, Number Of Environmental Groups Appealing Permits | group			2
Environmental Issue [Member] | PBF Energy and Valero [Member]
Loss Contingencies [Line Items]
Term of insurance policies										10 years
Environmental Issue [Member] | Sunoco, Inc. [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual, Insurance-Related Assessment, Expiration Of Liability Period					20 years
Environmental Issue [Member] | Torrance Refinery [Member]
Loss Contingencies [Line Items]
Environmental liability										$ 139,827,000			$ 142,456,000
Term of insurance policies				10 years
Environmental Issue [Member] | New York [Member]
Loss Contingencies [Line Items]
Maximum amount of sulfur allowed in heating oil (in ppm) | ppm												15
Environmental Issue [Member] | PENNSYLVANIA
Loss Contingencies [Line Items]
Maximum amount of sulfur allowed in heating oil (in ppm) | ppm												500
Cellulosic Standard [Member]
Loss Contingencies [Line Items]
Renewable Fuels Standard Requirements Increase								135.00%
Advanced Renewable Identification Number Requirements [Member]
Loss Contingencies [Line Items]
Renewable Fuels Standard Requirements Increase								7.00%
Total Renewable Identification Number Requirements [Member]
Loss Contingencies [Line Items]
Renewable Fuels Standard Requirements Increase								3.00%
Chalmette Refinery [Member] | Environmental Issue [Member]
Loss Contingencies [Line Items]
Environmental Costs Recognized, Recovery Credited to Expense										$ 3,936,000
Term of insurance policies										10 years
Accrual For Environmental Loss Contingencies, Expected Payment Period										30 years
Environmental Insurance Policies Coverage										$ 100,000,000
Maximum [Member] | Environmental Issue [Member] | Valero [Member]
Loss Contingencies [Line Items]
Site Contingency, Loss Exposure Not Accrued, Best Estimate										20,000,000
Maximum [Member] | Environmental Issue [Member] | PBF Energy and Valero [Member]
Loss Contingencies [Line Items]
Site Contingency, Loss Exposure Not Accrued, Best Estimate										75,000,000
Maximum [Member] | Environmental Issue [Member] | Torrance Refinery [Member]
Loss Contingencies [Line Items]
Site Contingency, Loss Exposure Not Accrued, Best Estimate				$ 100,000,000
East Coast Terminals [Member] | Maximum [Member] | East Coast Terminals commercial agreements [Member]
Loss Contingencies [Line Items]
Term of Agreement									5 years
Louisiana Department of Environmental Quality [Member] | Pending Litigation [Member] | Environmental Remediation Contingency [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value							$ 700,000
DNREC [Member] | Pending Litigation [Member] | Environmental Remediation Contingency [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 0
Number Of Barge Shipments | shipment											17
Number Of Gallons Of Crude Oil | gallon											35.7
Number Of Violated Locations | location											3
Clean Air Act [Member] | Pending Litigation [Member] | Environmental Remediation Contingency [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value						$ 180,000
New Jersey Department Of Environmental Protection Vs. Paulsboro refinery [Member] | Pending Litigation [Member] | Environmental Remediation Contingency [Domain] | Paulsboro Refining Company LLC [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		$ 313,000
New Jersey Department Of Environmental Protection Vs. Paulsboro refinery [Member] | Pending Litigation [Member] | Supplemental Environmental Project [Member] | Paulsboro Refining Company LLC [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		153,000
New Jersey Department Of Environmental Protection Vs. Paulsboro refinery [Member] | Pending Litigation [Member] | Balance Payable Upon Unfavorable Regulatory Action [Member] | Paulsboro Refining Company LLC [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		$ 160,000
SCAQMD [Member] | Pending Litigation [Member] | Environmental Remediation Contingency [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value										$ 100,000