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Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 09, 2022
Related Party Transaction [Line Items]
Net sales to Glencore	$ 412.2	$ 433.1
Vlissingen facility agreement | Affiliated Entity | Vlissingen
Related Party Transaction [Line Items]
Credit facility face amount			$ 90.0
Stated interest rate, percentage			8.75%
Glencore | Supply Commitment
Related Party Transaction [Line Items]
Net sales to Glencore	$ 21.0	$ 0.0
Consolidated sales | Customer concentration risk | Glencore
Related Party Transaction [Line Items]
Major customer, percentage of revenue, net (percent)	75.00%	57.00%
Glencore
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners	42.90%
Economic ownership percentage by related party	46.10%

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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