Stock Plans (Schedule of Stock Option Plans) (Details) (Stock Options [Member], USD $)	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Number of Shares:
Outstanding at October 31, 2012	2,293,708
Granted	224,288
Exercised	808,167
Forfeited or expired	1,153
Outstanding at October 31, 2013	1,708,676
Vested and exercisable at October 31, 2013	1,108,100
Weighted-Average Exercise Price Per Share:
Outstanding at October 31, 2012	$ 45.26
Granted	$ 96.24
Exercised	$ 39.68
Forfeited or expired	$ 43.99
Outstanding at October 31, 2013	$ 54.58
Vested and exercisable at October 31, 2013	$ 49.10
Outstanding at October 31, 2013, Weighted Average Remaining Contractual Term (in years)	5 years 4 months 6 days
Vested and exercisable at October 31, 2013, Weighted Average Remaining Contractual Term (in years)	4 years 1 month 6 days
Vested and exercisable at October 31, 2013, Aggregate Intrinsic Value	$ 88,818,089
2007 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of options granted	$ 31.51	$ 25.40
2007 LTIP [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years 6 months
2007 LTIP [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
2006 Directors Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of options granted	$ 32.20	$ 25.24
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year