CONDENSED CONSOLIDATING FINANCIAL STATEMENTS OF PBF HOLDINGS (Statement of Cash Flows) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 135,256,000	$ 232,750,000
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	48,282,000	34,848,000
Stock-based compensation	2,025,000	1,420,000
Change in fair value of catalyst lease obligations	(2,039,000)	2,001,000
Non-cash change in inventory repurchase obligations	66,509,000	(17,463,000)
Non-cash lower of cost or market inventory adjustment	(21,208,000)
Gain on sale of assets	(359,000)	(186,000)
Pension and other post retirement benefit costs	6,448,000	4,805,000
Equity in earnings of subsidiaries	0	0
Changes in current assets and current liabilities:
Accounts receivable	110,084,000	67,006,000
Inventories	(1,007,000)	(99,974,000)
Prepaid assets and other current assets	(6,085,000)	15,718,000
Accounts payable	(22,194,000)	(155,474,000)
Accrued expenses	(197,427,000)	179,981,000
Deferred revenue	4,859,000	(1,393,000)
Amounts due to/from related parties	2,621,000	0
Other assets and liabilities	(2,279,000)	(3,667,000)
Net cash provided by operations	123,486,000	260,372,000
Cash flows from investing activities:
Expenditures for property, plant and equipment	(100,747,000)	(60,127,000)
Expenditures for deferred turnaround costs	(18,376,000)	(23,128,000)
Expenditures for other assets	(4,958,000)	(7,157,000)
Investment in subsidiary	0
Proceeds from sale of assets	77,618,000	37,759,000
Net cash used in investing activities	(46,463,000)	(52,653,000)
Proceeds from revolver borrowings	0	265,000,000
Proceeds from members' capital contributions	0
Cash flows from financing activities:
Distribution to members	0	(29,661,000)
Repayments of revolver borrowings	0	(280,000,000)
Deferred financing costs and other	759,000	(2,893,000)
Net cash provided by (used in) financing activities	31,410,000	(47,554,000)
Repayments of Debt	(22,774,000)
Proceeds from intercompany notes payable	30,000,000	0
Proceeds from Rail Facility revolver borrowings	23,425,000	0
Net increase in cash and cash equivalents	108,433,000	160,165,000
Cash and equivalents, beginning of period	218,403,000	76,970,000
Cash and equivalents, end of period	326,836,000	237,135,000
Payment of contingent consideration related to acquisition of Toledo refinery	22,774,000	0
Issuer [Member]
Cash flows from operating activities:
Net income	135,256,000	232,750,000
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	4,823,000	5,115,000
Stock-based compensation	0	0
Change in fair value of catalyst lease obligations	0	0
Non-cash change in inventory repurchase obligations	0	0
Non-cash lower of cost or market inventory adjustment	(99,732,000)
Gain on sale of assets	(182,000)	(186,000)
Pension and other post retirement benefit costs	2,079,000	1,291,000
Equity in earnings of subsidiaries	318,138,000	304,829,000
Changes in current assets and current liabilities:
Accounts receivable	103,083,000	67,045,000
Inventories	87,991,000	(135,330,000)
Prepaid assets and other current assets	(7,284,000)	14,137,000
Accounts payable	3,449,000	(134,695,000)
Accrued expenses	(179,401,000)	174,049,000
Deferred revenue	4,859,000	(1,393,000)
Amounts due to/from related parties	(273,044,000)	(355,645,000)
Other assets and liabilities	320,000	(982,000)
Net cash provided by operations	100,355,000	170,985,000
Cash flows from investing activities:
Expenditures for property, plant and equipment	(67,355,000)	(4,595,000)
Expenditures for deferred turnaround costs	0	0
Expenditures for other assets	0	0
Investment in subsidiary	10,000,000
Proceeds from sale of assets	41,597,000	37,759,000
Net cash used in investing activities	(15,758,000)	33,164,000
Proceeds from revolver borrowings		265,000,000
Proceeds from members' capital contributions	0
Cash flows from financing activities:
Distribution to members	0	(29,661,000)
Repayments of revolver borrowings	0	(280,000,000)
Deferred financing costs and other	759,000	179,000
Net cash provided by (used in) financing activities	30,759,000	(44,482,000)
Repayments of Debt	0
Proceeds from intercompany notes payable	30,000,000
Proceeds from Rail Facility revolver borrowings	0
Net increase in cash and cash equivalents	115,356,000	159,667,000
Cash and equivalents, beginning of period	185,381,000	76,179,000
Cash and equivalents, end of period	300,737,000	235,846,000
Guarantors Subsidiaries [Member]
Cash flows from operating activities:
Net income	(358,666,000)	(304,829,000)
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	42,789,000	29,733,000
Stock-based compensation	2,025,000	1,420,000
Change in fair value of catalyst lease obligations	(2,039,000)	2,001,000
Non-cash change in inventory repurchase obligations	66,509,000	(17,463,000)
Non-cash lower of cost or market inventory adjustment	78,524,000
Gain on sale of assets	0	0
Pension and other post retirement benefit costs	4,369,000	3,514,000
Equity in earnings of subsidiaries	0	0
Changes in current assets and current liabilities:
Accounts receivable	14,653,000	(39,000)
Inventories	(59,790,000)	35,356,000
Prepaid assets and other current assets	1,199,000	1,581,000
Accounts payable	(21,672,000)	(20,779,000)
Accrued expenses	19,491,000	5,932,000
Deferred revenue	0	0
Amounts due to/from related parties	271,231,000	355,645,000
Other assets and liabilities	(2,601,000)	(2,685,000)
Net cash provided by operations	56,022,000	89,387,000
Cash flows from investing activities:
Expenditures for property, plant and equipment	(33,392,000)	(55,532,000)
Expenditures for deferred turnaround costs	(18,376,000)	(23,128,000)
Expenditures for other assets	(4,958,000)	(7,157,000)
Investment in subsidiary	0
Proceeds from sale of assets	0	0
Net cash used in investing activities	(56,726,000)	(85,817,000)
Proceeds from revolver borrowings		0
Proceeds from members' capital contributions	0
Cash flows from financing activities:
Distribution to members	0	0
Repayments of revolver borrowings	0	0
Deferred financing costs and other	0	(3,072,000)
Net cash provided by (used in) financing activities	0	(3,072,000)
Repayments of Debt	0
Proceeds from intercompany notes payable	0
Proceeds from Rail Facility revolver borrowings	0
Net increase in cash and cash equivalents	(704,000)	498,000
Cash and equivalents, beginning of period	704,000	791,000
Cash and equivalents, end of period	0	1,289,000
Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities:
Net income	40,528,000	0
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	670,000	0
Stock-based compensation	0	0
Change in fair value of catalyst lease obligations	0	0
Non-cash change in inventory repurchase obligations	0	0
Non-cash lower of cost or market inventory adjustment	0
Gain on sale of assets	(177,000)	0
Pension and other post retirement benefit costs	0	0
Equity in earnings of subsidiaries	0	0
Changes in current assets and current liabilities:
Accounts receivable	(7,652,000)	0
Inventories	(29,208,000)	0
Prepaid assets and other current assets	0	0
Accounts payable	(4,834,000)	0
Accrued expenses	(37,517,000)	0
Deferred revenue	0	0
Amounts due to/from related parties	4,434,000	0
Other assets and liabilities	2,000	0
Net cash provided by operations	(33,754,000)	0
Cash flows from investing activities:
Expenditures for property, plant and equipment	0	0
Expenditures for deferred turnaround costs	0	0
Expenditures for other assets	0	0
Investment in subsidiary	0
Proceeds from sale of assets	36,021,000	0
Net cash used in investing activities	36,021,000	0
Proceeds from revolver borrowings		0
Proceeds from members' capital contributions	(10,000,000)
Cash flows from financing activities:
Distribution to members	0	0
Repayments of revolver borrowings	0	0
Deferred financing costs and other	0	0
Net cash provided by (used in) financing activities	(9,349,000)	0
Repayments of Debt	(22,774,000)
Proceeds from intercompany notes payable	0
Proceeds from Rail Facility revolver borrowings	23,425,000
Net increase in cash and cash equivalents	(7,082,000)	0
Cash and equivalents, beginning of period	34,334,000	0
Cash and equivalents, end of period	27,252,000	0
Combining and Consolidated Adjustments [Member]
Cash flows from operating activities:
Net income	318,138,000	304,829,000
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	0	0
Stock-based compensation	0	0
Change in fair value of catalyst lease obligations	0	0
Non-cash change in inventory repurchase obligations	0	0
Non-cash lower of cost or market inventory adjustment	0
Gain on sale of assets	0	0
Pension and other post retirement benefit costs	0	0
Equity in earnings of subsidiaries	(318,138,000)	(304,829,000)
Changes in current assets and current liabilities:
Accounts receivable	0	0
Inventories	0	0
Prepaid assets and other current assets	0	0
Accounts payable	863,000	0
Accrued expenses	0	0
Deferred revenue	0	0
Amounts due to/from related parties	0	0
Other assets and liabilities	0	0
Net cash provided by operations	863,000	0
Cash flows from investing activities:
Expenditures for property, plant and equipment	0	0
Expenditures for deferred turnaround costs	0	0
Expenditures for other assets	0	0
Investment in subsidiary	(10,000,000)
Proceeds from sale of assets	0	0
Net cash used in investing activities	(10,000,000)	0
Proceeds from revolver borrowings		0
Proceeds from members' capital contributions	10,000,000
Cash flows from financing activities:
Distribution to members	0	0
Repayments of revolver borrowings	0	0
Deferred financing costs and other	0	0
Net cash provided by (used in) financing activities	10,000,000	0
Repayments of Debt	0
Proceeds from intercompany notes payable	0
Proceeds from Rail Facility revolver borrowings	0
Net increase in cash and cash equivalents	863,000	0
Cash and equivalents, beginning of period	(2,016,000)	0
Cash and equivalents, end of period	$ (1,153,000)	$ 0