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Receivables and allowance for expected credit losses (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Credit Loss [Abstract]      
Accounts Receivable, Noncurrent, 90 Days or More Past Due, Still Accruing $ 53.5 $ 45.6 $ 50.7