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Stockholders' Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jan. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Stock Based Compensation And Stockholders Equity [Line Items]      
Stock-based compensation expense   $ 2,738 $ 2,279
Regular dividend declared per common share   $ 0.33  
Regular cash dividends paid     $ 15,743
Scenario Forecast      
Stock Based Compensation And Stockholders Equity [Line Items]      
Regular cash dividends paid $ 17,352    
Restricted Stock Units (RSUs)      
Stock Based Compensation And Stockholders Equity [Line Items]      
Withholding taxes payable   $ 4,572