Stock-Based Compensation - Summarized Activity Related to Director Deferred Compensation Shares (Detail) (Directors [Member], Deferred Compensation Share Equivalent Units [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2014
Directors [Member] | Deferred Compensation Share Equivalent Units [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of Shares, Outstanding, Beginning balance	148
Number of Shares, Restricted stock units vested	13
Number of Shares, Dividend equivalents	1
Number of Shares, Distributions	(52)
Number of Shares, Outstanding, Ending balance	110
Weighted-Average Grant Date Fair Value Per Share, Beginning balance	$ 23.22
Weighted-Average Grant Date Fair Value Per Share, Restricted stock units vested	$ 57.43
Weighted-Average Grant Date Fair Value Per Share, Dividend equivalents	$ 76.49
Weighted-Average Grant Date Fair Value Per Share, Distributions	$ 19.20
Weighted-Average Grant Date Fair Value Per Share, Ending balance	$ 29.74