Property, Plant and Equipment - Schedule of Asset Retirement Obligations (Parenthetical) (Details) $ in Millions	3 Months Ended
Mar. 31, 2020 USD ($)
ILX and Castex
Property, Plant and Equipment [Line Items]
Fair value of asset retirement obligations assumed	$ 44.5

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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