SEGMENTS AND ENTITY WIDE DISCLOSURES (Details Textual) - USD ($) $ in Thousands		Apr. 30, 2017	Oct. 31, 2016
Segment Reporting Information [Line Items]
Equipment, building, furniture and fixtures, net		$ 299,792	$ 288,406
Other intangible assets, net	[1]	109,045
Maintenance spares, net		48,447	$ 49,535
Networking Platforms
Segment Reporting Information [Line Items]
Other intangible assets, net		43,100
Software and Software-Related Services
Segment Reporting Information [Line Items]
Other intangible assets, net		$ 70,100

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