Investment in Unconsolidated Affiliates (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity method investments
Distributions	$ 3.9	$ 2.1	$ 20.2
Equity in income (loss)	(11.5)	0.6	(16.8)
Tangible asset impairment charges			7.9
EnLink Midstream Partners, LP
Equity method investments
Total investment in unconsolidated affiliates	26.2	41.6
Cedar Cove JV
Equity method investments
Tangible asset impairment charges	$ 31.4		31.4
Gulf Coast Fractionators
Equity method investments
Ownership interest	38.75%
Distributions	$ 3.5	1.6	19.2
Equity in income (loss)	(9.1)	3.0	16.5
Gulf Coast Fractionators \| EnLink Midstream Partners, LP
Equity method investments
Total investment in unconsolidated affiliates	$ 28.0	40.6
Cedar Cove JV
Equity method investments
Ownership interest	30.00%
Distributions	$ 0.4	0.5	1.0
Equity in income (loss)	(2.4)	(2.4)	$ (33.3)
Cedar Cove JV \| EnLink Midstream Partners, LP
Equity method investments
Total investment in unconsolidated affiliates	$ (1.8)	$ 1.0

This element represents disclosure of the aggregate cash dividends paid to the entity by unconsolidated subsidiaries.

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