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Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Net sales to Glencore	$ 1,337.0	$ 1,025.5	$ 1,191.6
Glencore
Related Party Transaction [Line Items]
Net sales to Glencore	1,337.0	1,025.5	1,191.6
Related party costs	334.6	197.6	323.9
BHH
Related Party Transaction [Line Items]
Related party costs	$ 0.0	$ 0.0	$ 17.8
Percentage of voting interests sold	40.00%

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

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