Prepaid Expenses and Other (Details) (USD $)	9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Oct. 31, 2012
Prepaid expenses and other
Prepaid VAT and other taxes	$ 69,706,000		$ 37,806,000
Deferred deployment expense	24,035,000		19,449,000
Product demonstration equipment, net	39,722,000		33,144,000
Prepaid expenses	18,029,000		16,477,000
Restricted cash	107,000		2,030,000
Other non-trade receivables	8,764,000		8,689,000
Prepaid expenses and other	160,363,000		117,595,000
Depreciation of product demonstration equipment	$ 5,500,000	$ 6,000,000