Stock-Based Benefit Plans (Details 6) - Employee Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	255,000	1,441,000	1,313,000
Net exercise method [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	5,000	30,000	96,162
Shares tendered	3,547	29,917	58,819
Shares issued	1,453	83	37,343
Average Fair Market Value Per Share Withheld	$ 32.85	$ 32.64	$ 33.78
Aggregate Fair Market Value of Shares Withheld	$ 117	$ 976	$ 1,987