CONSOLIDATING FINANCIAL STATEMENTS OF PBF HOLDINGS (Statement of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 388,200	$ 103,000	$ 457,200
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	404,400	346,700	274,700
Stock-based compensation	30,500	20,200	21,500
Change in fair value of catalyst obligations	9,700	(5,600)	2,200
Deferred income taxes	(8,800)	7,200	(12,500)
Non-cash change in inventory repurchase obligations	25,400	(31,800)	13,800
Non-cash lower of cost or market inventory adjustment	(250,200)	351,300	(295,500)
Pension and other post-retirement benefit costs	44,800	47,400	42,200
Equity income in investee	(7,900)	(17,800)	(14,600)
Distributions from equity method investee	7,900	17,800	20,200
(Gain) loss on sale of assets	(29,900)	(43,100)	1,500
Equity in earnings (loss) of subsidiaries	0	0	0
Debt extinguishment costs	0	0	25,500
Distribution received from subsidiaries			0
Changes in operating assets and liabilities:
Accounts receivable	(115,900)	240,400	(335,200)
Due to/from affiliates	12,600	(3,500)	3,200
Inventories	(8,000)	(1,500)	(54,700)
Prepaid and other current assets	4,400	(2,900)	(9,200)
Accounts payable	132,000	(110,700)	34,500
Accrued expenses	209,500	(233,000)	353,100
Deferred revenue	(200)	9,600	(4,800)
Other assets and liabilities	(58,900)	1,300	(52,000)
Net cash provided by operations	789,600	695,000	471,100
Cash flows from investing activities:
Expenditures for property, plant and equipment	(373,100)	(277,300)	(232,600)
Expenditures for deferred turnaround costs	(299,300)	(266,000)	(379,100)
Expenditures for other assets	(44,700)	(17,000)	(31,200)
Proceeds from sale of assets	36,300	48,300	0
Equity method investment - return of capital	600	2,400	1,300
Return on investment in subsidiaries	0	2,400	1,300
Increase (Decrease) Due from Other Related Parties	0
Net cash used in investing activities	(680,200)	(509,600)	(641,600)
Cash flows from financing activities:
Contributions from PBF LLC	228,500	287,000	97,000
Parent Distribution	0
Distribution to members	(121,600)	(52,600)	(61,200)
Payment received for affiliate note receivable	0	0	11,600
Proceeds from 2025 Senior Notes	0	0	725,000
Proceeds from revolver borrowings	(1,350,000)	0	(490,000)
Repayments of revolver borrowings	(1,350,000)	(350,000)	(490,000)
Proceeds from affiliate notes payable			(690,200)
Repayments of note payable	0	(5,600)	(1,200)
Settlements of catalyst obligations	(6,500)	(9,100)	10,800
Repayments of Related Party Debt			490,000
Due to/from affiliates	0		0
Payments of Financing Costs	(1,400)	(12,800)	(13,400)
Net cash provided by (used in) financing activities	92,000	(149,900)	70,000
Net increase (decrease) in cash and cash equivalents	201,400	35,500	(100,500)
Cash and equivalents, beginning of period	561,700	526,200	626,700
Cash and equivalents, end of period	763,100	561,700	526,200
Rail Facility [Member]
Cash flows from financing activities:
Repayments of revolver borrowings			(1,200)
Rail Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	(7,000)	(6,800)	(6,600)
Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distribution to members	0	0	(1,800)
Combining and Consolidated Adjustments [Member]
Cash flows from operating activities:
Net income	1,473,400	1,274,200	1,347,900
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 obligations	0	0	0
Deferred income taxes	0	0	0
Non-cash change in inventory repurchase obligations	0	0	0
Non-cash lower of cost or market inventory adjustment	0	0	0
Pension and other post-retirement benefit costs	0	0	0
Equity income in investee	0	0	0
Distributions from equity method investee	0	0	0
(Gain) loss on sale of assets	0	0	0
Equity in earnings (loss) of subsidiaries	(1,473,400)	(1,274,200)	(1,347,900)
Debt extinguishment costs			0
Distribution received from subsidiaries			(7,200)
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	0	0	1,500
Accrued expenses	0	0	0
Deferred revenue	0	0	0
Other assets and liabilities	0	0	0
Net cash provided by operations	0	0	(5,700)
Cash flows from investing activities:
Expenditures for property, plant and equipment	0	0	0
Expenditures for deferred turnaround costs	0	0	0
Expenditures for other assets	0	0	0
Proceeds from sale of assets	0	0	900
Equity method investment - return of capital	0
Return on investment in subsidiaries	(5,600)	0	0
Increase (Decrease) Due from Other Related Parties	5,700
Net cash used in investing activities	100	0	900
Cash flows from financing activities:
Contributions from PBF LLC	0	0	0
Parent Distribution	(5,600)
Distribution to members	0	0	0
Payment received for affiliate note receivable			0
Proceeds from 2025 Senior Notes			0
Proceeds from revolver borrowings	0		0
Repayments of revolver borrowings	0	0
Proceeds from affiliate notes payable			0
Repayments of note payable		0
Settlements of catalyst obligations	0	0	0
Repayments of Related Party Debt			0
Due to/from affiliates	(5,700)		(900)
Payments of Financing Costs	0	0	0
Net cash provided by (used in) financing activities	(100)	0	6,300
Net increase (decrease) in cash and cash equivalents	0	0	1,500
Cash and equivalents, beginning of period	0	0	(1,500)
Cash and equivalents, end of period	0	0	0
Combining and Consolidated Adjustments [Member] | Rail Facility [Member]
Cash flows from financing activities:
Repayments of revolver borrowings			0
Combining and Consolidated Adjustments [Member] | Rail Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	0	0	0
Combining and Consolidated Adjustments [Member] | Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distribution to members			7,200
Issuer [Member]
Cash flows from operating activities:
Net income	388,200	103,000	457,200
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	17,000	16,900	20,000
Stock-based compensation	1,200	200	0
Change in fair value of catalyst obligations	0	0	0
Deferred income taxes	0	0	0
Non-cash change in inventory repurchase obligations	25,400	(31,800)	13,800
Non-cash lower of cost or market inventory adjustment	(250,200)	351,300	(295,500)
Pension and other post-retirement benefit costs	9,200	7,800	6,600
Equity income in investee	0	0	0
Distributions from equity method investee	0	0	0
(Gain) loss on sale of assets	0	0	0
Equity in earnings (loss) of subsidiaries	1,456,600	1,302,900	1,349,200
Debt extinguishment costs			25,500
Distribution received from subsidiaries			0
Changes in operating assets and liabilities:
Accounts receivable	(98,000)	213,100	(304,100)
Due to/from affiliates	(1,661,700)	(1,608,500)	(1,696,100)
Inventories	22,200	(54,200)	(6,700)
Prepaid and other current assets	2,000	(100)	6,900
Accounts payable	160,500	(135,600)	53,500
Accrued expenses	45,900	(43,200)	288,400
Deferred revenue	(300)	9,500	(4,800)
Other assets and liabilities	(13,300)	32,600	(11,800)
Net cash provided by operations	104,700	163,900	(97,900)
Cash flows from investing activities:
Expenditures for property, plant and equipment	(8,300)	(6,200)	(1,900)
Expenditures for deferred turnaround costs	0	0	0
Expenditures for other assets	0	0	0
Proceeds from sale of assets	0	0	(900)
Equity method investment - return of capital	0
Return on investment in subsidiaries	5,600	0	0
Increase (Decrease) Due from Other Related Parties	(5,700)
Net cash used in investing activities	(8,400)	(6,200)	(2,800)
Cash flows from financing activities:
Contributions from PBF LLC	228,500	287,000	97,000
Parent Distribution	0
Distribution to members	(116,300)	(42,500)	(61,200)
Payment received for affiliate note receivable			0
Proceeds from 2025 Senior Notes			725,000
Proceeds from revolver borrowings	(1,350,000)		490,000
Repayments of revolver borrowings	(1,350,000)	(350,000)
Proceeds from affiliate notes payable			690,200
Repayments of note payable		0
Settlements of catalyst obligations	0	0	0
Repayments of Related Party Debt			(490,000)
Due to/from affiliates	0		0
Payments of Financing Costs	(500)	(12,800)	(13,400)
Net cash provided by (used in) financing activities	111,700	(118,300)	57,200
Net increase (decrease) in cash and cash equivalents	208,000	39,400	(43,500)
Cash and equivalents, beginning of period	526,000	486,600	530,100
Cash and equivalents, end of period	734,000	526,000	486,600
Issuer [Member] | Rail Facility [Member]
Cash flows from financing activities:
Repayments of revolver borrowings			0
Issuer [Member] | Rail Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	0	0	0
Issuer [Member] | Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distribution to members			0
Guarantors Subsidiaries [Member]
Cash flows from operating activities:
Net income	(1,456,600)	(1,302,900)	(1,349,200)
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	379,500	322,000	247,000
Stock-based compensation	29,300	20,000	21,500
Change in fair value of catalyst obligations	9,700	(5,600)	2,200
Deferred income taxes	0	0	0
Non-cash change in inventory repurchase obligations	0	0	0
Non-cash lower of cost or market inventory adjustment	0	0	0
Pension and other post-retirement benefit costs	35,600	39,600	35,600
Equity income in investee	0	0	0
Distributions from equity method investee	0	0	0
(Gain) loss on sale of assets	(29,900)	(43,100)	1,500
Equity in earnings (loss) of subsidiaries	16,800	(28,700)	(1,300)
Debt extinguishment costs			0
Distribution received from subsidiaries			7,200
Changes in operating assets and liabilities:
Accounts receivable	600	400	400
Due to/from affiliates	1,735,400	1,483,800	1,709,800
Inventories	0	0	0
Prepaid and other current assets	2,600	(2,900)	(14,400)
Accounts payable	(31,100)	31,000	(28,100)
Accrued expenses	7,400	20,600	(38,000)
Deferred revenue	100	100	0
Other assets and liabilities	(36,000)	(10,200)	(19,100)
Net cash provided by operations	663,400	524,100	575,100
Cash flows from investing activities:
Expenditures for property, plant and equipment	(351,800)	(268,900)	(230,200)
Expenditures for deferred turnaround costs	(299,300)	(266,000)	(379,100)
Expenditures for other assets	(44,700)	(17,000)	(31,200)
Proceeds from sale of assets	36,300	48,300	0
Equity method investment - return of capital	0
Return on investment in subsidiaries	0	0	0
Increase (Decrease) Due from Other Related Parties	0
Net cash used in investing activities	(659,500)	(503,600)	(640,500)
Cash flows from financing activities:
Contributions from PBF LLC	0	0	0
Parent Distribution	0
Distribution to members	(5,300)	(10,100)	0
Payment received for affiliate note receivable			11,600
Proceeds from 2025 Senior Notes			0
Proceeds from revolver borrowings	0		0
Repayments of revolver borrowings	0	0
Proceeds from affiliate notes payable			0
Repayments of note payable		(5,600)
Settlements of catalyst obligations	(6,500)	(9,100)	10,800
Repayments of Related Party Debt			0
Due to/from affiliates	5,700		900
Payments of Financing Costs	(900)	0	0
Net cash provided by (used in) financing activities	(7,000)	(24,800)	22,100
Net increase (decrease) in cash and cash equivalents	(3,100)	(4,300)	(43,300)
Cash and equivalents, beginning of period	9,100	13,400	56,700
Cash and equivalents, end of period	6,000	9,100	13,400
Guarantors Subsidiaries [Member] | Rail Facility [Member]
Cash flows from financing activities:
Repayments of revolver borrowings			(1,200)
Guarantors Subsidiaries [Member] | Rail Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	0	0	0
Guarantors Subsidiaries [Member] | Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distribution to members			0
Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities:
Net income	(16,800)	28,700	1,300
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	7,900	7,800	7,700
Stock-based compensation	0	0	0
Change in fair value of catalyst obligations	0	0	0
Deferred income taxes	(8,800)	7,200	(12,500)
Non-cash change in inventory repurchase obligations	0	0	0
Non-cash lower of cost or market inventory adjustment	0	0	0
Pension and other post-retirement benefit costs	0	0	0
Equity income in investee	(7,900)	(17,800)	(14,600)
Distributions from equity method investee	7,900	17,800	20,200
(Gain) loss on sale of assets	0	0	0
Equity in earnings (loss) of subsidiaries	0	0	0
Debt extinguishment costs			0
Distribution received from subsidiaries			0
Changes in operating assets and liabilities:
Accounts receivable	(18,500)	26,900	(31,500)
Due to/from affiliates	(61,100)	121,200	(10,500)
Inventories	(30,200)	52,700	(48,000)
Prepaid and other current assets	(200)	100	(1,700)
Accounts payable	2,600	(6,100)	7,600
Accrued expenses	156,200	(210,400)	102,700
Deferred revenue	0	0	0
Other assets and liabilities	(9,600)	(21,100)	(21,100)
Net cash provided by operations	21,500	7,000	(400)
Cash flows from investing activities:
Expenditures for property, plant and equipment	(13,000)	(2,200)	(500)
Expenditures for deferred turnaround costs	0	0	0
Expenditures for other assets	0	0	0
Proceeds from sale of assets	0	0	0
Equity method investment - return of capital	600
Return on investment in subsidiaries	0	2,400	1,300
Increase (Decrease) Due from Other Related Parties	0
Net cash used in investing activities	(12,400)	200	800
Cash flows from financing activities:
Contributions from PBF LLC	0	0	0
Parent Distribution	5,600
Distribution to members	0	0	0
Payment received for affiliate note receivable			0
Proceeds from 2025 Senior Notes			0
Proceeds from revolver borrowings	0		0
Repayments of revolver borrowings	0	0
Proceeds from affiliate notes payable			0
Repayments of note payable		0
Settlements of catalyst obligations	0	0	0
Repayments of Related Party Debt			0
Due to/from affiliates	0		0
Payments of Financing Costs	0	0	0
Net cash provided by (used in) financing activities	(12,600)	(6,800)	(15,600)
Net increase (decrease) in cash and cash equivalents	(3,500)	400	(15,200)
Cash and equivalents, beginning of period	26,600	26,200	41,400
Cash and equivalents, end of period	23,100	26,600	26,200
Non-Guarantor Subsidiaries [Member] | Rail Facility [Member]
Cash flows from financing activities:
Repayments of revolver borrowings			0
Non-Guarantor Subsidiaries [Member] | Rail Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	$ (7,000)	$ (6,800)	(6,600)
Non-Guarantor Subsidiaries [Member] | Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distribution to members			$ (9,000)