COMMITMENTS AND CONTINGENCIES (Details) gallon in Millions								1 Months Ended	12 Months Ended
	Mar. 05, 2018 USD ($)	Mar. 10, 2017 USD ($)	Jan. 13, 2017 group	Jul. 01, 2016 USD ($)	Nov. 01, 2015 USD ($)	Mar. 03, 2014 ppm	Mar. 01, 2011	Nov. 30, 2016	Dec. 31, 2017 USD ($) ppm	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 gallon shipment	Dec. 31, 2012 ppm	Dec. 31, 2010 ppm
Commitments and Contingencies Disclosure [Abstract]
Rent expense									$ 125,433,000	$ 129,768,000	$ 126,060,000
Lease payments to affiliates									97,771,000	46,511,000	21,352,000
Inventory purchases									64,050,000	53,364,000	$ 36,139,000
Loss Contingencies [Line Items]
Investment in equity method investee									171,903,000	179,882,000
Environmental Matters
Environmental liabilities									$ 7,968,000	$ 8,882,000
Percent of tax benefit received from increases in tax basis paid to stockholders									85.00%
Percentage of ownership in PBF LLC									100.00%
PBF Energy [Member] | Class A Common Stock [Member]
Environmental Matters
Percentage of ownership in PBF LLC									96.70%	96.50%
Environmental Issue [Member]
Environmental Matters
Environmental liabilities									$ 10,282,000	$ 10,792,000
Discount rate used for environmental liability assessment									8.00%
Undiscounted liability									$ 15,804,000
Expected future payments									$ 6,095,000
Expected payment period									5 years
Number of environmental groups appealing permits | group			2
Maximum amount of sulfur allowed in heating oil (in ppm) | ppm						10			80
Environmental Issue [Member] | Valero [Member]
Environmental Matters
Payments to acquire environmental insurance policies									$ 20,000,000
Environmental Issue [Member] | PBF Energy and Valero [Member]
Environmental Matters
Payments to acquire environmental insurance policies									$ 75,000,000
Term of insurance policies									10 years
Environmental Issue [Member] | Sunoco, Inc. [Member]
Environmental Matters
Insurance-related assessment, expiration of liability period							20 years
Environmental Issue [Member] | Torrance Refinery [Member]
Environmental Matters
Environmental liabilities									$ 136,487,000	$ 142,456,000
Expected future payments									$ 32,426,000
Term of insurance policies				10 years
Advanced Renewable Identification Number Requirements [Member]
Environmental Matters
Renewable Fuels Standard Requirements Increase								19.00%
Total Renewable Identification Number Requirements [Member]
Environmental Matters
Renewable Fuels Standard Requirements Increase								7.00%
Minimum [Member]
Loss Contingencies [Line Items]
Non-cancelable operating lease term									1 year
Maximum [Member]
Loss Contingencies [Line Items]
Non-cancelable operating lease term									20 years
Maximum [Member] | Environmental Issue [Member] | Torrance Refinery [Member]
Environmental Matters
Litigation Settlement, Amount									$ 100,000
Executive [Member] | Minimum [Member]
Employee Agreements
Potential lump sum payment as a multiple of base salary									1.5
Potential payment upon death or disability as a multiple of base salary									0.50
Executive [Member] | Maximum [Member]
Employee Agreements
Potential lump sum payment as a multiple of base salary									2.99
New York [Member] | Environmental Issue [Member]
Environmental Matters
Maximum amount of sulfur allowed in heating oil (in ppm) | ppm													15
PENNSYLVANIA | Environmental Issue [Member]
Environmental Matters
Maximum amount of sulfur allowed in heating oil (in ppm) | ppm														500
Chalmette Refinery [Member] | Environmental Issue [Member]
Environmental Matters
Expected payment period									30 years
Payments to acquire environmental insurance policies									$ 100,000,000
Term of insurance policies									10 years
Environmental costs recognized, recovery credited to expense									$ 3,936,000
Torrance Refinery [Member] | Environmental Issue [Member]
Environmental Matters
Payments to acquire environmental insurance policies				$ 100,000,000
Pending Litigation [Member] | Louisiana Department of Environmental Quality [Member] | Environmental Remediation Contingency [Domain]
Environmental Matters
Damages sought					$ 741,000
Pending Litigation [Member] | DNREC [Member] | Environmental Remediation Contingency [Domain]
Environmental Matters
Appealed fine amount		$ 150
Number of days barge shipments made												15 days
Number of barge shipments | shipment												17
Number of gallons of crude oil | gallon												35.7
Pending Litigation [Member] | DNREC [Member] | Subsequent Event [Member] | Environmental Remediation Contingency [Domain]
Environmental Matters
Damages sought	$ 100,000