Certain Provisions of the ENLK Partnership Agreement - Narrative and Distributions (Details) - USD ($) $ / shares in Units, $ in Millions							1 Months Ended			3 Months Ended												6 Months Ended		9 Months Ended
	Sep. 15, 2023	Sep. 08, 2023	Sep. 07, 2023	Dec. 15, 2022	May 13, 2022	Feb. 11, 2022	Feb. 28, 2023	Jan. 31, 2022	Dec. 31, 2021	Dec. 14, 2023	Sep. 30, 2023	Sep. 14, 2023	Jun. 30, 2023	Jun. 14, 2023	Mar. 31, 2023	Mar. 14, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 14, 2022	Jun. 14, 2022	Sep. 30, 2023
Redemption of Series B Preferred Units
Partnership agreement
Stock redeemed during period (in shares)								3,333,334
Total consideration paid								$ 50.5
Redemption price of preferred stock (as a percent)								101.00%
Distribution paid-in kind (in shares)											136,099							0
Cash distributions											$ 15.3							$ 17.3
Redemption of Series B Preferred Units | Limited Partner
Partnership agreement
Distribution paid-in kind (in shares)													135,759		135,421		0		0	0	0
Cash distributions													$ 15.3		$ 15.2		$ 17.3		$ 17.3	$ 17.5	$ 19.2
Redemption of Series B Preferred Units | Limited Partner | Distribution, Tranche One
Partnership agreement
Distributions preferred units						$ 17.3		$ 1.0	$ 0.9
Redemption of Series B Preferred Units | Limited Partner | Distribution, Tranche Two
Partnership agreement
Distributions preferred units					$ 17.2			$ 0.3
Redemption of Series B Preferred Units | EnLink Midstream Partners, LP
Partnership agreement
Preferred units, issued (in shares)											54,439,539													54,439,539
Preferred units, outstanding (in shares)																	54,168,359
Annual rate on issue price payable in cash		31.875%	28.125%
Price payable, overage (in dollars per unit)																								$ 6.52
Repurchase of Series C Preferred Units
Partnership agreement
Stock redeemed during period (in shares)							4,500
Total consideration paid							$ 3.9
Redemption price of preferred stock (as a percent)							87.00%
Distribution rate per unit	0.26161%			6.00%								9.618%		9.051%		8.846%						6.00%	6.00%
Cash distributions												$ 9.3		$ 8.7		$ 8.4						$ 11.4	$ 12.0
Redemption price (per unit)				$ 1,000
Variable floating rate percentage	4.11%			4.11%
Repurchase of Series C Preferred Units | Forecast
Partnership agreement
Distribution rate per unit										9.782%
Cash distributions										$ 9.3
Repurchase of Series C Preferred Units | EnLink Midstream Partners, LP
Partnership agreement
Preferred units, issued (in shares)											376,500						381,000							376,500
Preferred units, outstanding (in shares)											376,500						381,000							376,500