Acquisitions - Narrative (Details) - USD ($) $ in Millions								1 Months Ended		2 Months Ended	3 Months Ended		10 Months Ended	11 Months Ended	12 Months Ended
	Jan. 07, 2016	Nov. 16, 2015	Oct. 01, 2015	Apr. 01, 2015	Mar. 16, 2015	Jan. 31, 2015	Mar. 07, 2014	Jan. 31, 2018	Jan. 31, 2017	Dec. 31, 2015	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Consideration	$ 1,400.0
First installment	$ 1,020.0
Acquisition of business															$ 0.0		$ 791.5	$ 524.2
LPC | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Acquired voting interest						100.00%
Consideration						$ 108.1
Direct transaction costs										$ 0.3	$ 0.3		$ 0.3	$ 0.3				0.3
Recognized revenue														1,100.0
Net gain (loss) related to assets acquired														0.9
Intangible asset, useful life						10 years
Coronado | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Acquired voting interest					100.00%
Consideration					$ 600.3
Direct transaction costs										3.1	3.1		3.1	3.1				3.1
Recognized revenue													182.0
Net gain (loss) related to assets acquired													(14.2)
Cash					$ 240.3
Matador | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Acquired voting interest			100.00%
Consideration			$ 141.3
Direct transaction costs										0.1	0.1		0.1	0.1				0.1
Recognized revenue											5.6
Net gain (loss) related to assets acquired											(0.7)
Intangible asset, useful life			15 years
Deadwood Acquisition | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Acquired voting interest		50.00%
Consideration		$ 40.1
Recognized revenue																$ 3.5
Net gain (loss) related to assets acquired										1.3
VEX Pipeline | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Acquired voting interest				100.00%
Cash				$ 166.7
Value of equity interests issues and issuable				9.0
Consideration transferred, liabilities incurred				40.0
Historical cost of entity under common control				131.0
Distribution to parent for asset drop				$ 35.7
Contributions from devon												$ 25.6
EnLink Oklahoma T.O.
Business Acquisition [Line Items]
Acquired voting interest	16.10%														16.10%
Consideration	$ 1,441.6
Direct transaction costs										$ 0.4	$ 0.4		$ 0.4	$ 0.4		4.4	4.4	$ 0.4
Recognized revenue																246.1
Net gain (loss) related to assets acquired																$ (34.1)
Cash	$ 805.8
Intangible asset, useful life	15 years
Value of equity interests issues and issuable	$ 214.9
Consideration transferred, liabilities incurred	420.9
First installment	1,020.0
Second installment									$ 250.0
Acquisition of business	$ 22.2
EnLink Oklahoma T.O. | Subsequent Event
Business Acquisition [Line Items]
Final installment payable								$ 250.0
EnLink Oklahoma T.O. | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Acquired voting interest	83.90%
Cash	$ 783.6
Consideration transferred, liabilities incurred															$ 0.0		$ 420.9
Common Unit
Business Acquisition [Line Items]
Equity interest issued or issuable, number of shares (in shares)							115,495,669
Common Unit | Coronado | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Equity interest issued or issuable, number of shares (in shares)					6,704,285
Common Unit | VEX Pipeline | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Equity interest issued or issuable, number of shares (in shares)				338,159
Common Unit | EnLink Oklahoma T.O.
Business Acquisition [Line Items]
Equity interest issued or issuable, number of shares (in shares)	15,564,009
Class C Common Unit | Coronado | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Equity interest issued or issuable, number of shares (in shares)					6,704,285
Minimum
Business Acquisition [Line Items]
Intangible asset, useful life															10 years
Minimum | Coronado | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Intangible asset, useful life					10 years
Maximum
Business Acquisition [Line Items]
Intangible asset, useful life															20 years
Maximum | Coronado | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Intangible asset, useful life					20 years
Maximum | Deadwood Acquisition | EnLink Midstream Partners, LP
Business Acquisition [Line Items]
Direct transaction costs		$ 0.1