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Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 09, 2022
Vlissingen facility agreement | Affiliated Entity | Vlissingen
Related Party Transaction [Line Items]
Credit facility maximum amount					$ 90.0
Stated interest rate, percentage					8.75%
Supply Commitment | Glencore
Related Party Transaction [Line Items]
Net sales to Glencore	$ 65.8	$ 13.9	$ 86.8	$ 13.9
Consolidated sales | Customer concentration risk | Glencore
Related Party Transaction [Line Items]
Major customer, percentage of revenue, net (percent)	74.00%	57.00%
Glencore
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners	42.90%		42.90%
Economic ownership percentage by related party	46.10%		46.10%

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