GOODWILL (Tables)

3 Months Ended

Jan. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The following table presents the goodwill allocated to Ciena's reportable segments as of the dates indicated (in thousands):

	Balance at October 31, 2015		Acquisitions		Impairments		Balance at January 31, 2016
Software and Software-Related Services	$	201,428	$	—	$	—	$	201,428
Networking Platforms	55,006		—		—		55,006
Total	$	256,434	$	—	$	—	$	256,434