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Business Combination - Summary of Purchase Consideration and the Provisional Fair Value of Goodwill, Identifiable Assets and Liabilities of BHPP Acquired (Parenthetical) (Detail) - OCI Clean Ammonia Holding BV [member] $ in Millions	Dec. 31, 2024 USD ($)
Disclosure of detailed information about business combination [line items]
Working capital adjustment	$ 20
Percentage of consideration to be paid	20.00%

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

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Percentage of balance amount to be paid.

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- Definition

Working capital adjustment.

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