SEGMENTS AND ENTITY WIDE DISCLOSURES (Details Textual) - USD ($) $ in Thousands		Jul. 31, 2017	Oct. 31, 2016
Segment Reporting Information [Line Items]
Equipment, building, furniture and fixtures, net		$ 314,850	$ 288,406
Other intangible assets, net	[1]	106,319
Maintenance spares, net		46,576	$ 49,535
Networking Platforms
Segment Reporting Information [Line Items]
Other intangible assets, net		40,400
Software and Software-Related Services
Segment Reporting Information [Line Items]
Other intangible assets, net		$ 66,600

[1] Does not include amortization of in-process research and development, as estimation of the timing of future amortization expense would be impractical.