Prepaid Expenses and Other (Details) (USD $)	9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Oct. 31, 2013
Prepaid expenses and other
Prepaid VAT and other taxes	$ 111,004,000		$ 101,072,000
Product demonstration equipment, net	42,754,000		33,382,000
Deferred deployment expense	27,992,000		23,190,000
Prepaid expenses	20,742,000		16,963,000
Other non-trade receivables	8,140,000		12,048,000
Prepaid expenses and other	210,632,000		186,655,000
Depreciation of product demonstration equipment	$ 6,700,000	$ 5,500,000