Consolidated Statements of Comprehensive Income PBF LLC STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ (346,673)	$ 192,466	$ 287,687	$ 41,811	$ 260,386	$ 347,226	$ (104,151)	$ (20,030)	$ 175,291	$ 483,431	$ 225,518
Other comprehensive income:
Unrealized loss on available for sale securities									(108)	(24)	(42)
Net gain (loss) on pension and other post-retirement benefits									3,091	(950)	(2,550)
Total other comprehensive income (loss)									2,983	(974)	(2,592)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									178,274	482,457	222,926
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest									47,006	67,882	54,618
Comprehensive income attributable to PBF Energy Inc. stockholders									131,268	414,575	168,308
PBF LLC [Member]
Statement of Comprehensive Income [Abstract]
Net income	$ (502,132)	$ 244,913	$ 385,622	$ 51,743	$ 223,799	$ 553,077	$ (183,778)	$ (41,853)	180,146	551,245	320,997
Other comprehensive income:
Unrealized loss on available for sale securities									(108)	(24)	(42)
Net gain (loss) on pension and other post-retirement benefits									3,091	(950)	(2,550)
Total other comprehensive income (loss)									2,983	(974)	(2,592)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									183,129	550,271	318,405
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest										51,168	40,109
Comprehensive income attributable to PBF Energy Inc. stockholders									$ 140,821	$ 499,103	$ 278,296