Other Income (Expense) - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Other Income and Expenses [Abstract]
Foreign currency transaction gains (losses)	$ 662	$ (605)
Foreign currency exchange derivative gains (losses)	(708)	721
Interest income	20	79
Other	(65)	22
Other income (expense)	$ (91)	$ 217