Prepaid Expenses and Other (Details) (USD $)	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Prepaid expenses and other
Prepaid VAT and other taxes	$ 86,464,000	$ 101,072,000
Deferred deployment expense	27,991,000	23,190,000
Product demonstration equipment, net	42,385,000	33,382,000
Prepaid expenses	23,539,000	16,963,000
Other non-trade receivables	10,683,000	12,048,000
Derivative assets	1,562,000	0
Prepaid expenses and other	192,624,000	186,655,000
Depreciation of product demonstration equipment	$ 9,000,000	$ 7,400,000	$ 7,800,000