Earnings Per Share and Dilution Computations (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Class B units	Sep. 30, 2014 Common Stock	Sep. 30, 2014 Common Stock	Sep. 30, 2014 Unvested restricted shares	Sep. 30, 2014 Unvested restricted shares	Sep. 30, 2014 Enlink midstream, LLC	Jun. 30, 2014 Enlink midstream, LLC	Mar. 31, 2014 Enlink midstream, LLC	Sep. 30, 2014 Enlink midstream, LLC Class B units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Enlink Midstream, LLC interest in net income	$ 28,800,000	$ 0	$ 64,400,000	$ 0
Net income attributable to Enlink Midstream, LLC	28,800,000		64,400,000
Distributed Earnings	37,900,000		88,900,000			37,700,000	88,300,000	200,000	600,000
Undistributed Earnings, Basic	(9,200,000)		(24,500,000)			(9,100,000)	(24,300,000)	(100,000)	(200,000)
Net income attributable to Enlink Midstream, LLC	28,800,000	30,300,000	99,900,000	92,500,000		28,600,000	64,000,000	200,000	400,000
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Declared										$ 0.23	$ 0.22	$ 0.18	$ 0.05
Distribution Made to Limited Liability Company (LLC) Member, Distribution Date					May 15, 2014					Nov. 14, 2014	Aug. 14, 2014	May 15, 2014
Basic per common unit	$ 0.18	$ 0.00	$ 0.39	$ 0.00
Diluted per common unit	$ 0.17	$ 0.00	$ 0.39	$ 0.00
Class B units conversion date			May 06, 2014