COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended			3 Months Ended
	Mar. 31, 2013		Dec. 31, 2012		Dec. 31, 2010 Environmental Issue [Member] ppm	Mar. 31, 2013 Environmental Issue [Member]	Dec. 31, 2012 Environmental Issue [Member]	Mar. 31, 2013 Environmental Issue [Member] Valero [Member]	Mar. 31, 2013 Environmental Issue [Member] PBF Energy and Valero [Member]
Loss Contingencies [Line Items]
Environmental liability						$ 11,369	$ 9,669
Discount rate used for environmental liability assessment						8.00%
Restricted cash for environmental liabilities	12,116		12,114			12,116	12,114
Maximum pre-disposal environmental obligations of Valero								20,000
Payments to acquire environmental insurance policies									$ 75,000
Term of insurance policies									10 years
Maximum amount of sulfur allowed in heating oil (in ppm)					15
Percent of tax benefit received from increases in tax basis paid to stockholders	85.00%
Percentage of ownership in PBF LLC	100.00%	[1]	100.00%	[1]

[1] Assumes all of the holders of PBF LLC Series A Units exchange their PBF LLC Series A Units for shares of PBF Energy’s Class A common stock on a one-for-one basis.