Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Proceeds from members' capital contributions		$ 0
Cash flows from operating activities:
Net income	$ 457,200	235,886	$ 187,294
Adjustments to reconcile net income to net cash provided by operations:
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)
Deferred income taxes	(12,526)	19,802	0
Non-cash change in inventory repurchase obligations	13,779	29,453	63,389
Change in Non-cash Lower of Cost or Market Adjustment	(295,532)	(521,348)	427,226
Debt extinguishment costs	25,451	0	0
Pension and other post-retirement benefit costs	42,242	37,987	26,982
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)
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 deferred turnaround costs	(379,114)	(198,664)	(53,576)
Expenditures for other assets	(31,143)	(42,506)	(8,236)
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
Net cash used in investing activities	(641,613)	(1,473,499)	(811,211)
Cash flows from financing activities:
Contributions from PBF LLC	97,000	450,300	345,000
Distributions to members	(61,149)	(139,434)	(350,658)
Payment received for affiliate note receivable	11,600	0	0
Proceeds from affiliate notes payable	0	43,396	347,783
Repayments of affiliate notes payable	0	(53,524)	0
Proceeds from revolver borrowings	490,000	550,000	170,000
Repayments of revolver borrowings	(490,000)	(200,000)	(170,000)
Repayments of Long-term Debt	(690,209)
Repayments of Notes Payable	1,210	0	0
Proceeds from 2023 Senior Notes			500,000
Proceeds from PBF Rail Term Loan	725,000
Proceeds from catalyst lease	10,830	15,589	0
Deferred financing costs and other	(13,425)	0	(17,108)
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
Non-cash activities:
Conversion of affiliate notes payable to capital contribution	86,298	379,947	0
Conversion of Delaware Economic Development Authority loan to grant	0	4,000	4,000
Accrued and unpaid capital expenditures	25,382	34,055	7,974
Distribution of assets to PBF Energy Company LLC	25,547	172,743	19,233
Note payable issued for purchase of property, plant and equipment	6,831	0	0
Cash paid during the year for:
Interest (net of capitalized interest of $5,937, $8,333 and $3,529 in 2017, 2016 and 2015, respectively)	131,416	108,547	79,842
Income taxes	0	2,449	0
Chalmette Refinery [Member]
Cash flows from investing activities:
Payments to acquire businesses	0	(2,659)	(565,304)
Torrance Refinery [Member]
Cash flows from investing activities:
Payments to acquire businesses	0	(971,932)	0
2025 Senior Notes [Member]
Cash flows from financing activities:
Proceeds from PBF Rail Term Loan	725,000	0	0
2020 Senior Secured Notes [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	(690,209)	0	0
2023 Senior Notes [Member]
Cash flows from financing activities:
Proceeds from 2023 Senior Notes	0	0	500,000
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 Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	(6,633)	0	0
Proceeds from PBF Rail Term Loan	0	35,000	0
Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Distributions to members	$ (1,800)	$ 0	$ 0