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Mexican IVA taxes receivable (Details)
$ in Millions, $ in Millions
1 Months Ended
Apr. 30, 2022
USD ($)
Oct. 31, 2022
USD ($)
Oct. 31, 2022
MXN ($)
Apr. 30, 2022
MXN ($)
Oct. 31, 2021
USD ($)
Oct. 31, 2021
MXN ($)
IVA receivables            
IVA receivables balance   $ 43.6 $ 865.4   $ 37.5 $ 762.1
Unrecoverable value added tax $ 0.3     $ 6.9    
Minimum            
IVA receivables            
Estimated term for resolution of law suits 2 years          
Maximum            
IVA receivables            
Estimated term for resolution of law suits 3 years