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Financial Instruments - Carrying Amounts and Fair Values of Financial Instruments, Other than Receivables and Accounts Payable (Detail) - USD ($)
$ in Thousands
Apr. 30, 2016
Oct. 31, 2015
Apr. 30, 2015
Oct. 31, 2014
Schedule Of Carrying Amounts And Fair Values Of Financial Instruments [Abstract]        
Cash and cash equivalents, Carrying Amount $ 47,919 $ 50,268 $ 51,454 $ 42,314
Notes payable, Carrying Amount 7,241 $ 1,108    
Long-term debt, including current maturities, Carrying Amount 1,065,774      
Foreign currency forward contracts (net), Carrying Amount (1,493)      
Cash and cash equivalents, Fair Value 47,919      
Notes payable, Fair Value 7,241      
Long-term debt, including current maturities, Fair Value 1,075,201      
Foreign currency forward contracts (net), Fair Value $ (1,493)