Prepaid Expenses and Other (Details) (USD $)	6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Oct. 31, 2012
Prepaid expenses and other
Prepaid VAT and other taxes	$ 57,445,000		$ 37,806,000
Deferred deployment expense	21,978,000		19,449,000
Product demonstration equipment, net	36,262,000		33,144,000
Prepaid expenses	16,689,000		16,477,000
Restricted cash	333,000		2,030,000
Other non-trade receivables	5,870,000		8,689,000
Prepaid expenses and other	138,577,000		117,595,000
Depreciation of product demonstration equipment	$ 3,500,000	$ 4,200,000