Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Trade receivables due from King George Slag \| Related Party
Related Party Transaction [Line Items]
Technical management fees	$ 651	$ 563

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.

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+ Details