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	9 Months Ended
	Jul. 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	6
Number of Shares, Dividend equivalents	1
Number of Shares, Distributions	(43)
Number of Shares, Outstanding, Ending balance	112
Weighted-Average Grant Date Fair Value Per Share, Beginning balance	$ 23.22
Weighted-Average Grant Date Fair Value Per Share, Restricted stock units vested	$ 43.73
Weighted-Average Grant Date Fair Value Per Share, Dividend equivalents	$ 75.23
Weighted-Average Grant Date Fair Value Per Share, Distributions	$ 18.81
Weighted-Average Grant Date Fair Value Per Share, Ending balance	$ 26.60