PREPAID EXPENSES AND OTHER (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Oct. 31, 2016
Prepaid expenses and other
Prepaid VAT and other taxes	$ 92,998		$ 77,474
Product demonstration equipment, net	42,881		42,259
Deferred deployment expense	28,028		19,138
Prepaid expenses	25,229		25,659
Other non-trade receivables	6,847		4,398
Financing receivable	1,395		3,740
Derivative assets	1,811		175
Prepaid expenses and other	199,189		$ 172,843
Depreciation of product demonstration equipment	$ 7,500	$ 8,100