COMMITMENTS AND CONTINGENCIES (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($) ppm	Dec. 31, 2010 ppm	Dec. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Percent of tax benefit received from increases in tax basis paid to stockholders	85.00%
PBF Energy [Member] | Class A Common Stock [Member]
Loss Contingencies [Line Items]
Percentage of ownership in PBF LLC	94.30%		89.90%
Environmental Issue [Member]
Loss Contingencies [Line Items]
Environmental liability	$ 11,132,000		$ 10,476,000
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
Environmental Issue [Member] | Valero [Member]
Loss Contingencies [Line Items]
Maximum pre-disposal environmental obligations of Valero	$ 20,000,000
Environmental Issue [Member] | PBF Energy and Valero [Member]
Loss Contingencies [Line Items]
Maximum pre-disposal environmental obligations of Valero	$ 75,000,000
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