Accounts and other receivables, net - Accounts and Other Receivables, Net (Detail) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (4.0)	$ (3.8)
Total	355.4	291.6
Trade receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	338.4	269.2
Recoverable VAT and other receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	19.2	24.3
Other
Accounts Notes And Loans Receivable [Line Items]
Receivables from affiliates, other	$ 0.5	$ 0.6
Other Receivable, after Allowance for Credit Loss, Current, Related Party [Extensible Enumeration]	Related Party [Member]	Related Party [Member]
Refundable income taxes
Accounts Notes And Loans Receivable [Line Items]
Refundable income taxes	$ 1.3	$ 1.3

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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