CONSOLIDATING FINANCIAL STATEMENTS OF PBF HOLDINGS (Statement of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	May 30, 2017	Feb. 09, 2012
Condensed Financial Statements, Captions [Line Items]
Payments of Financing Costs	$ (13,425)	$ 0	$ (17,108)
Cash flows from operating activities:
Net income	457,200	235,886	187,294
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	274,651	218,933	199,383
Stock-based compensation	21,503	18,296	9,218
Change in fair value of catalyst leases	2,247	(1,422)	(10,184)
Non-cash change in inventory repurchase obligations	13,779	29,453	63,389
Deferred income taxes	(12,526)	19,802	0
Change in Non-cash Lower of Cost or Market Adjustment	(295,532)	(521,348)	427,226
Debt extinguishment costs	25,451	0	0
Cash Dividends Paid to Parent Company	0
Pension and other post-retirement benefit costs	42,242	37,987	26,982
Gain (Loss) on Disposition of Property Plant Equipment	(1,458)	(11,374)	1,004
Equity income in investee	(14,565)	(5,679)	0
Distributions from equity method investee	20,244	0	0
Loss (gain) on sale of assets	1,458	11,374	(1,004)
Equity in earnings (loss) of subsidiaries	0	0	0
Changes in operating assets and liabilities:
Accounts receivable	(335,248)	(161,122)	97,636
Due to/from affiliates	3,233	9,721	12,104
Inventories	(54,705)	236,602	(271,892)
Prepaid and other current assets	(9,191)	(5,783)	(631)
Accounts payable	34,527	213,514	(25,015)
Accrued expenses	353,115	227,986	(37,737)
Deferred revenue	(4,845)	8,297	2,816
Other assets and liabilities	(51,974)	(20,878)	(27,182)
Net cash provided by operations	471,064	551,619	652,403
Cash flows from investing activities:
Payments to acquire businesses		(971,932)	(565,304)
Expenditures for property, plant and equipment	(232,656)	(282,430)	(352,365)
Expenditures for refinery turnarounds costs	(379,114)	(198,664)	(53,576)
Expenditures for other assets	(31,143)	(42,506)	(8,236)
Return on investment in subsidiaries		0	0
Payment Of Working Capital Settlement		(2,659)
Capital contributions to subsidiaries		0	0
Proceeds from sale of assets	0	24,692	168,270
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	1,300	0	0
Increase (Decrease) Due from Other Related Parties	0
Net cash used in investing activities	(641,613)	(1,473,499)	(811,211)
Proceeds from members' capital contributions		0
Cash flows from financing activities:
Proceeds from revolver borrowings	490,000	550,000	170,000
Repayments of affiliate notes payable	0	(53,524)	0
Contributions from PBF LLC	97,000	450,300	345,000
Parent Distribution		0	0
Distribution to members	(61,149)	(139,434)	(350,658)
Proceeds from affiliate notes payable	0	43,396	347,783
Payment received for affiliate note receivable	11,600	0	0
Proceeds from 2023 Senior Notes			500,000
Repayments of revolver borrowings	(490,000)	(200,000)	(170,000)
Proceeds from PBF Rail Term Loan	725,000
Proceeds from catalyst lease	10,830	15,589	0
Repayments of Long-term Debt	(690,209)
Repayments of Notes Payable	1,210	0	0
Due to/from affiliates	0
Net cash provided by financing activities	70,004	633,836	855,154
Net (decrease) increase in cash and cash equivalents	(100,545)	(288,044)	696,346
Cash and equivalents, beginning of period	626,705	914,749	218,403
Cash and equivalents, end of period	526,160	626,705	914,749
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Payments of Financing Costs	(13,425)		(17,108)
Cash flows from operating activities:
Net income	457,200	235,887	187,941
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	19,971	14,873	17,064
Stock-based compensation	0	0	0
Change in fair value of catalyst leases	0	0	0
Non-cash change in inventory repurchase obligations	13,779	29,453	0
Deferred income taxes	0	0
Change in Non-cash Lower of Cost or Market Adjustment	(295,532)	(521,348)	279,785
Debt extinguishment costs	25,451
Cash Dividends Paid to Parent Company	0
Pension and other post-retirement benefit costs	6,607	7,139	7,576
Gain (Loss) on Disposition of Property Plant Equipment	0	(2,392)	249
Equity income in investee	0	0
Distributions from equity method investee	0
Loss (gain) on sale of assets	0	2,392	(249)
Equity in earnings (loss) of subsidiaries	1,349,208	1,502,243	1,154,420
Changes in operating assets and liabilities:
Accounts receivable	(304,151)	(168,338)	87,689
Due to/from affiliates	(1,696,091)	(2,031,933)	(1,018,176)
Inventories	(6,725)	217,629	(108,751)
Prepaid and other current assets	6,922	(3,200)	2,721
Accounts payable	53,569	163,272	(38,609)
Accrued expenses	288,434	531,613	27,925
Deferred revenue	(4,896)	6,858	2,816
Other assets and liabilities	(11,740)	(5,833)	(423)
Net cash provided by operations	(97,994)	(19,293)	601,729
Cash flows from investing activities:
Payments to acquire businesses		(971,932)	(601,311)
Expenditures for property, plant and equipment	(1,884)	(21,563)	(193,898)
Expenditures for refinery turnarounds costs	0	0	0
Expenditures for other assets	0	0	0
Return on investment in subsidiaries		12,800	10,000
Payment Of Working Capital Settlement		0
Capital contributions to subsidiaries		(8,287)	(5,000)
Proceeds from sale of assets		4,802	60,902
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	0
Increase (Decrease) Due from Other Related Parties	(856)
Net cash used in investing activities	(2,740)	(984,180)	(729,307)
Proceeds from members' capital contributions		0
Cash flows from financing activities:
Proceeds from revolver borrowings	490,000	550,000	170,000
Repayments of affiliate notes payable	0	(53,524)
Contributions from PBF LLC	97,000	450,300	345,000
Parent Distribution		0	0
Distribution to members	(61,149)	(139,434)	(350,658)
Proceeds from affiliate notes payable		43,396	347,783
Payment received for affiliate note receivable	0
Proceeds from 2023 Senior Notes			500,000
Repayments of revolver borrowings	(490,000)	(200,000)	(170,000)
Proceeds from PBF Rail Term Loan	725,000
Proceeds from catalyst lease	0	0
Repayments of Long-term Debt	(690,209)
Repayments of Notes Payable	0
Due to/from affiliates	0
Net cash provided by financing activities	57,217	650,738	825,017
Net (decrease) increase in cash and cash equivalents	(43,517)	(352,735)	697,439
Cash and equivalents, beginning of period	530,085	882,820	185,381
Cash and equivalents, end of period	486,568	530,085	882,820
Guarantors Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Payments of Financing Costs	0		0
Cash flows from operating activities:
Net income	(1,349,208)	(1,502,244)	(1,228,630)
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	246,984	194,723	178,600
Stock-based compensation	21,503	18,296	9,218
Change in fair value of catalyst leases	2,247	(1,422)	(10,184)
Non-cash change in inventory repurchase obligations	0	0	63,389
Deferred income taxes	0	0
Change in Non-cash Lower of Cost or Market Adjustment	0	0	147,441
Debt extinguishment costs	0
Cash Dividends Paid to Parent Company	7,200
Pension and other post-retirement benefit costs	35,635	30,848	19,406
Gain (Loss) on Disposition of Property Plant Equipment	(1,458)	(150)	105
Equity income in investee	0	0
Distributions from equity method investee	0
Loss (gain) on sale of assets	1,458	150	(105)
Equity in earnings (loss) of subsidiaries	(1,273)	74,507	0
Changes in operating assets and liabilities:
Accounts receivable	394	3,058	16,124
Due to/from affiliates	1,709,868	2,046,280	1,133,364
Inventories	0	0	(116,074)
Prepaid and other current assets	(14,373)	(2,675)	(2,999)
Accounts payable	(28,168)	41,025	15,710
Accrued expenses	(38,022)	(353,591)	8,172
Deferred revenue	34	1,438	0
Other assets and liabilities	(19,098)	(16,238)	(26,769)
Net cash provided by operations	575,181	534,155	206,663
Cash flows from investing activities:
Payments to acquire businesses		0	19,042
Expenditures for property, plant and equipment	(230,261)	(255,434)	(158,361)
Expenditures for refinery turnarounds costs	(379,114)	(198,664)	(53,576)
Expenditures for other assets	(31,143)	(42,506)	(8,236)
Return on investment in subsidiaries		0	0
Payment Of Working Capital Settlement		(2,659)
Capital contributions to subsidiaries		0	0
Proceeds from sale of assets		0	0
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	0
Increase (Decrease) Due from Other Related Parties	0
Net cash used in investing activities	(640,518)	(499,263)	(201,131)
Proceeds from members' capital contributions		0
Cash flows from financing activities:
Proceeds from revolver borrowings	0	0	0
Repayments of affiliate notes payable	0	0
Contributions from PBF LLC	0	0	0
Parent Distribution		0	0
Distribution to members	0	0	0
Proceeds from affiliate notes payable		0	0
Payment received for affiliate note receivable	11,600
Proceeds from 2023 Senior Notes			0
Repayments of revolver borrowings	0	0	0
Proceeds from PBF Rail Term Loan	0
Proceeds from catalyst lease	10,830	15,589
Repayments of Long-term Debt	0
Repayments of Notes Payable	1,210
Due to/from affiliates	856
Net cash provided by financing activities	22,076	15,589	0
Net (decrease) increase in cash and cash equivalents	(43,261)	50,481	5,532
Cash and equivalents, beginning of period	56,717	6,236	704
Cash and equivalents, end of period	13,456	56,717	6,236
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Payments of Financing Costs	0		0
Cash flows from operating activities:
Net income	1,273	(74,507)	73,563
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	7,696	9,337	3,719
Stock-based compensation	0	0	0
Change in fair value of catalyst leases	0	0	0
Non-cash change in inventory repurchase obligations	0	0	0
Deferred income taxes	(12,526)	19,802
Change in Non-cash Lower of Cost or Market Adjustment	0	0
Debt extinguishment costs	0
Cash Dividends Paid to Parent Company	0
Pension and other post-retirement benefit costs	0	0	0
Gain (Loss) on Disposition of Property Plant Equipment	0	(8,832)	650
Equity income in investee	(14,565)	(5,679)
Distributions from equity method investee	20,244
Loss (gain) on sale of assets	0	8,832	(650)
Equity in earnings (loss) of subsidiaries	0	0	0
Changes in operating assets and liabilities:
Accounts receivable	(31,491)	4,158	(6,177)
Due to/from affiliates	(10,544)	(4,626)	(103,084)
Inventories	(47,980)	18,973	(47,067)
Prepaid and other current assets	(1,740)	92	(353)
Accounts payable	7,663	7,405	(857)
Accrued expenses	102,703	49,964	(73,834)
Deferred revenue	17	1	0
Other assets and liabilities	(21,136)	1,193	10
Net cash provided by operations	(386)	34,945	(154,730)
Cash flows from investing activities:
Payments to acquire businesses		0	16,965
Expenditures for property, plant and equipment	(511)	(5,433)	(106)
Expenditures for refinery turnarounds costs	0	0	0
Expenditures for other assets	0	0	0
Return on investment in subsidiaries		0	0
Payment Of Working Capital Settlement		0
Capital contributions to subsidiaries		0	0
Proceeds from sale of assets		19,890	107,368
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	1,300
Increase (Decrease) Due from Other Related Parties	0
Net cash used in investing activities	789	14,457	124,227
Proceeds from members' capital contributions		8,287
Cash flows from financing activities:
Proceeds from revolver borrowings	0	0	0
Repayments of affiliate notes payable	0	0
Contributions from PBF LLC	0	0	5,000
Parent Distribution		(12,800)	(10,000)
Distribution to members	0	0	0
Proceeds from affiliate notes payable		0	0
Payment received for affiliate note receivable	0
Proceeds from 2023 Senior Notes			0
Repayments of revolver borrowings	0	0	0
Proceeds from PBF Rail Term Loan	0
Proceeds from catalyst lease	0	0
Repayments of Long-term Debt	0
Repayments of Notes Payable	0
Due to/from affiliates	0
Net cash provided by financing activities	(15,633)	(37,004)	25,137
Net (decrease) increase in cash and cash equivalents	(15,230)	12,398	(5,366)
Cash and equivalents, beginning of period	41,366	28,968	34,334
Cash and equivalents, end of period	26,136	41,366	28,968
Combining and Consolidated Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Payments of Financing Costs	0		0
Cash flows from operating activities:
Net income	1,347,935	1,576,750	1,154,420
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	0	0	0
Stock-based compensation	0	0	0
Change in fair value of catalyst leases	0	0	0
Non-cash change in inventory repurchase obligations	0	0	0
Deferred income taxes	0	0
Change in Non-cash Lower of Cost or Market Adjustment	0	0	0
Debt extinguishment costs	0
Cash Dividends Paid to Parent Company	(7,200)
Pension and other post-retirement benefit costs	0	0	0
Gain (Loss) on Disposition of Property Plant Equipment	0	0	0
Equity income in investee	0	0
Distributions from equity method investee	0
Loss (gain) on sale of assets	0	0	0
Equity in earnings (loss) of subsidiaries	(1,347,935)	(1,576,750)	(1,154,420)
Changes in operating assets and liabilities:
Accounts receivable	0	0	0
Due to/from affiliates	0	0	0
Inventories	0	0	0
Prepaid and other current assets	0	0	0
Accounts payable	1,463	1,812	(1,259)
Accrued expenses	0	0	0
Deferred revenue	0	0	0
Other assets and liabilities	0	0	0
Net cash provided by operations	(5,737)	1,812	(1,259)
Cash flows from investing activities:
Payments to acquire businesses		0	0
Expenditures for property, plant and equipment	0	0	0
Expenditures for refinery turnarounds costs	0	0	0
Expenditures for other assets	0	0	0
Return on investment in subsidiaries		(12,800)	(10,000)
Payment Of Working Capital Settlement		0
Capital contributions to subsidiaries		8,287	5,000
Proceeds from sale of assets		0	0
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	0
Increase (Decrease) Due from Other Related Parties	856
Net cash used in investing activities	856	(4,513)	(5,000)
Proceeds from members' capital contributions		(8,287)
Cash flows from financing activities:
Proceeds from revolver borrowings	0	0	0
Repayments of affiliate notes payable	0	0
Contributions from PBF LLC	0	0	(5,000)
Parent Distribution		12,800	10,000
Distribution to members	0	0	0
Proceeds from affiliate notes payable		0	0
Payment received for affiliate note receivable	0
Proceeds from 2023 Senior Notes			0
Repayments of revolver borrowings	0	0	0
Proceeds from PBF Rail Term Loan	0
Proceeds from catalyst lease	0	0
Repayments of Long-term Debt	0
Repayments of Notes Payable	0
Due to/from affiliates	(856)
Net cash provided by financing activities	6,344	4,513	5,000
Net (decrease) increase in cash and cash equivalents	1,463	1,812	(1,259)
Cash and equivalents, beginning of period	(1,463)	(3,275)	(2,016)
Cash and equivalents, end of period	0	(1,463)	(3,275)
2025 Senior Notes [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan	$ 725,000	0	0
Debt fixed interest rate	7.25%			7.25%
Rail Facility [Member]
Cash flows from financing activities:
Proceeds from revolver borrowings	$ 0	0	102,075
Repayments of revolver borrowings	0	(67,491)	(71,938)
Rail Facility [Member] | Issuer [Member]
Cash flows from financing activities:
Proceeds from revolver borrowings			0
Repayments of revolver borrowings		0	0
Rail Facility [Member] | Guarantors Subsidiaries [Member]
Cash flows from financing activities:
Proceeds from revolver borrowings			0
Repayments of revolver borrowings		0	0
Rail Facility [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities:
Proceeds from revolver borrowings			102,075
Repayments of revolver borrowings		(67,491)	(71,938)
Rail Facility [Member] | Combining and Consolidated Adjustments [Member]
Cash flows from financing activities:
Proceeds from revolver borrowings			0
Repayments of revolver borrowings		0	0
Rail Term Loan [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan	0	35,000	0
Repayments of Long-term Debt	(6,633)	0	$ 0
Rail Term Loan [Member] | Issuer [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan		0
Repayments of Long-term Debt	0
Rail Term Loan [Member] | Guarantors Subsidiaries [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan		0
Repayments of Long-term Debt	0
Rail Term Loan [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan		35,000
Repayments of Long-term Debt	(6,633)
Rail Term Loan [Member] | Combining and Consolidated Adjustments [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan		$ 0
Repayments of Long-term Debt	0
Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distribution to members	(1,800)
Collins Pipeline Company And T&M Terminal Company [Member] | Issuer [Member]
Cash flows from financing activities:
Distribution to members	0
Collins Pipeline Company And T&M Terminal Company [Member] | Guarantors Subsidiaries [Member]
Cash flows from financing activities:
Distribution to members	0
Collins Pipeline Company And T&M Terminal Company [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from financing activities:
Distribution to members	(9,000)
Collins Pipeline Company And T&M Terminal Company [Member] | Combining and Consolidated Adjustments [Member]
Cash flows from financing activities:
Distribution to members	$ 7,200
Senior Secured Notes [Member]
Cash flows from financing activities:
Debt fixed interest rate	8.25%				8.25%