Stock Repurchase Activities (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Stock Repurchase Program
Shares repurchased		1,850
Average purchase price per share		$ 28.83
Aggregate purchase price		$ 53,335	[1]
Reissuance of treasury stock	1,071	2,485

[1] Includes $33.3 million from the settlement of the Company's September 2011 ASR equity forward contract but excludes $20.0 million from the January 2012 ASR referenced above that was settled in the second quarter of fiscal 2012.