Accounts and other receivables, net - Accounts and Other Receivables, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (4.1)	$ (3.5)
Total	295.2	252.4
Trade receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	273.6	220.3
Recoverable VAT and other receivables
Accounts Notes And Loans Receivable [Line Items]
Accounts and other receivables	23.8	28.5
Refundable income taxes
Accounts Notes And Loans Receivable [Line Items]
Refundable income taxes	$ 1.9	$ 7.1