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Goodwill

12 Months Ended

Oct. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

The following table presents the goodwill allocated to Ciena’s operating segments as of October 31, 2020 and November 2, 2019, as well as the changes to goodwill during fiscal 2020 (in thousands):


	Balance at November 2, 2019		Acquisitions		Impairments		Translation		Balance at October 31, 2020
Platform Software and Services	$	156,191	$	—	$	—	$	—	$	156,191
Blue Planet Automation Software and Services	75,994		13,055		—		—		89,049
Networking Platforms	65,752		—		—		(145)		65,607
Total	$	297,937	$	13,055	$	—	$	(145)	$	310,847