Stock-based Compensation - Summarized Information on Currently Outstanding Options (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2013
Price Range 14 to 20 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	452
Weighted-average remaining contractual life, in years	3 years 9 months 18 days
Weighted-average exercise price	$ 16.15
Number exercisable	401
Weighted-average exercise price	$ 16.37
Price Range 21 to 31 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	500
Weighted-average remaining contractual life, in years	5 years
Weighted-average exercise price	$ 27.15
Number exercisable	391
Weighted-average exercise price	$ 26.96
Price Range 32 to 63 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding	797
Weighted-average remaining contractual life, in years	8 years 1 month 6 days
Weighted-average exercise price	$ 49.82
Number exercisable	150
Weighted-average exercise price	$ 43.47