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Mexican IVA taxes receivable (Details) - USD ($)
$ in Thousands
Jul. 31, 2016
Oct. 31, 2015
Value Added Tax Receivable [Abstract]    
IVA receivables balance $ 14,500 $ 11,600
Mexican IVA (i.e. value-added) tax receivable recorded in prepaids & other current assets 7,400 5,700
Mexican IVA (i.e. value-added) tax receivable recorded in other assets $ 7,061 $ 5,853