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GOODWILL (Tables)
12 Months Ended
Nov. 01, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill Allocated by Reportable Segments
The following table presents the goodwill allocated to Ciena’s operating segments as of November 1, 2025 and November 2, 2024, as well as the changes to goodwill during fiscal 2025 (in thousands):
Balance at November 2, 2024AcquisitionsTranslationBalance at November 1, 2025
Platform Software and Services$156,191 $— $— $156,191 
Blue Planet Automation Software and Services89,049 — — 89,049 
Networking Platforms199,467 76,539 (42)275,964 
Total$444,707 $76,539 $(42)$521,204