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Mexican IVA taxes receivable (Details)
$ in Millions, $ in Millions
12 Months Ended
Oct. 31, 2021
USD ($)
Oct. 31, 2021
MXN ($)
Oct. 31, 2020
USD ($)
Oct. 31, 2020
MXN ($)
IVA receivables        
IVA receivables balance $ 37.5 $ 762.1 $ 30.2 $ 640.7
Minimum        
IVA receivables        
Estimated term for resolution of law suits 2 years      
Maximum        
IVA receivables        
Estimated term for resolution of law suits 3 years