Stock-Based Benefit Plans (Stock Options - Net Exercise Method Table) (Details 6) - Employee Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	2,863,000	255,000	1,441,000
Net exercise method [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	15,000	5,000	30,000
Shares tendered	14,472	3,547	29,917
Shares issued	528	1,453	83
Average Fair Market Value Per Share Withheld	$ 32.98	$ 32.85	$ 32.64
Aggregate Fair Market Value of Shares Withheld	$ 477	$ 117	$ 976