Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2020		Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 29.8		$ 9.1	$ (230.6)	$ (125.7)
Gain (loss) on designated cash flow hedge	[1]	1.5		(9.9)	(11.6)	(9.9)
Comprehensive income (loss)		31.3		(0.8)	(242.2)	(135.6)
Comprehensive income attributable to non-controlling interest		25.7		25.2	52.1	66.7
Comprehensive income (loss) attributable to ENLC		5.6		(26.0)	(294.3)	(202.3)
Income tax (benefit)		$ 0.5	[1]	$ (3.6)	$ (3.5)	$ (3.6)

[1] Includes a tax expense of $0.5 million and a tax benefit of $3.5 million for the three and six months ended June 30, 2020, respectively, and a tax benefit of $3.6 million for the three and six months ended June 30, 2019, respectively.