Debt Instrument, Covenant, Effective Fixed Charge Coverage Ratio During Period

No definition available.

Name:	pbf_DebtInstrumentCovenantEffectiveFixedChargeCoverageRatioDuringPeriod
Namespace Prefix:	pbf_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant, Limited Excess Availability

+ References

No definition available.

+ Details

Name:	pbf_DebtInstrumentCovenantLimitedExcessAvailability
Namespace Prefix:	pbf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt Instrument, Covenant, Limited Excess Availability, As A Percentage

+ References

No definition available.

+ Details

Name:	pbf_DebtInstrumentCovenantLimitedExcessAvailabilityAsAPercentage
Namespace Prefix:	pbf_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Periodic Payment Terms, Monthly Payments to be Paid

+ References

No definition available.

+ Details

Name:	pbf_DebtInstrumentPeriodicPaymentTermsMonthlyPaymentstobePaid
Namespace Prefix:	pbf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Available Increase in Borrowing Capacity

+ References

No definition available.

+ Details

Name:	pbf_LineofCreditFacilityAvailableIncreaseinBorrowingCapacity
Namespace Prefix:	pbf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

+ References

+ Details

Name:	us-gaap_NotesPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromDebtNetOfIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=pbf_A2020SeniorSecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pbf_A2023SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pbf_A2025SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=pbf_CompanyCreditRatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=pbf_PBFRailLogisticsCompanyLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

CREDIT FACILITY AND LONG-TERM DEBT (Details)							1 Months Ended	12 Months Ended
CREDIT FACILITY AND LONG-TERM DEBT (Details)	May 02, 2018 USD ($)	May 31, 2017 USD ($)	Dec. 22, 2016 USD ($)	Nov. 24, 2015 USD ($)	Aug. 15, 2014 USD ($)	Feb. 09, 2012 USD ($)	Oct. 31, 2012 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 28, 2017 USD ($)	May 30, 2017 USD ($)
Debt Instrument [Line Items]
Debt fixed interest rate								2.15%
Note payable								$ 0		$ 5,621,000	$ 6,831,000
2020 Senior Secured Notes [Member]
Debt Instrument [Line Items]
Long-term Debt						$ 675,500,000
Debt fixed interest rate						8.25%
2023 Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 500,000,000
Proceeds form Debt, Net of Issuance Costs				$ 490,000,000
Debt fixed interest rate				7.00%
2025 Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt												$ 725,000,000
Proceeds form Debt, Net of Issuance Costs		$ 711,576,000
Debt fixed interest rate												7.25%
Redemption price as a percentage								100.00%
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment Terms, Monthly Payments to be Paid									$ 403,000
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid									$ 3,200,000
Revolving Loan [Member]
Debt Instrument [Line Items]
Long-term Line of Credit										350,000,000
Senior Secured Notes [Member]
Debt Instrument [Line Items]
Redemption price as a percentage						100.00%
Line of Credit [Member] \| Revolving Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 3,400,000,000				$ 2,635,000,000
Line of Credit Facility, Available Increase in Borrowing Capacity	$ 3,500,000,000				$ 2,750,000,000
Line of Credit Facility, Commitment Fee Percentage					0.25%
Maximum borrowing capacity, as a percentage of aggregate borrowing capacity							10.00%
Alternative maximum borrowing capacity							$ 100,000,000
Effective consolidated fixed charge coverage ratio during period							1.0
Long-term Line of Credit								$ 0		350,000,000
Line of Credit [Member] \| Revolving Loan [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.25%
Line of Credit [Member] \| Revolving Loan [Member] \| Company Credit Rating [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%				1.25%
Line of Credit [Member] \| Revolving Loan [Member] \| Company Credit Rating [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%				2.00%
Line of Credit [Member] \| Revolving Loan [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					0.50%		0.25%
Line of Credit [Member] \| Revolving Loan [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					1.25%		1.00%
Line of Credit [Member] \| Revolving Loan [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%				1.50%
Line of Credit [Member] \| Revolving Loan [Member] \| LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%				2.25%
Line of Credit [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 1,500,000,000
Line of Credit [Member] \| Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Long-term Line of Credit								400,695,000		586,274,000
PBF Rail Logistics Company LLC [Member] \| Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 35,000,000					$ 21,554,000		$ 28,366,000
Debt instrument term			5 years