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Stock-Based Benefit Plans (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 31, 2019
Jul. 31, 2018
Jul. 31, 2019
Jul. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation expense recognized $ 5,435 $ 6,532 $ 19,351 $ 21,879
Income tax benefit recognized $ 1,395 $ 1,877 $ 5,047 $ 6,236