Stock-Based Benefit Plans (Details 5) - Employee Stock Option [Member] - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	$ 2,337	$ 12,923	$ 18,361
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Total Fair Value	$ 9,690	$ 9,183	$ 8,447