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SEGMENTS AND ENTITY-WIDE DISCLOSURES (Tables)
 9 Months Ended
Jul. 27, 2024
Segment Reporting [Abstract]  
Schedule of Reconciliation of Assets From Segment to Consolidated As of July 27, 2024, finite-lived intangible assets, goodwill, and maintenance spares are assigned to asset groups within the following segments (in thousands):
July 27, 2024
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Other intangible assets, net$166,067 — 8,907 — $174,974 
Goodwill$199,551 156,191 89,049 — $444,791 
Maintenance spares, net$— — — 68,100 $68,100 
Schedule of Segment Profit (Loss) and the Reconciliation to Consolidated Net Income (Loss)
The table below sets forth Ciena’s segment profit (loss) and the reconciliation to net income for the periods indicated (in thousands):
Quarter EndedNine Months Ended
 July 27,July 29,July 27,July 29,
 2024202320242023
Segment profit (loss):
Networking Platforms$106,870 $171,380 $387,211 $588,281 
Platform Software and Services53,131 49,691 165,171 136,028 
Blue Planet Automation Software and Services4,705 (12,072)(10,127)(30,044)
Global Services50,351 50,550 145,776 137,190 
Total segment profit215,057 259,549 688,031 831,455 
Less: Non-performance operating expenses 
  Selling and marketing121,520 118,266 373,749 367,156 
  General and administrative58,248 49,349 162,504 151,184 
  Significant asset impairments and restructuring costs1,361 4,174 21,987 16,625 
  Amortization of intangible assets7,185 9,487 22,384 26,773 
Acquisition and integration costs— 59 — 3,474 
Add: Other non-performance financial items
Interest and other income, net14,013 10,187 36,460 50,711 
Interest expense(24,401)(24,060)(72,038)(63,819)
Less: Provision for income taxes2,125 34,608 24,901 89,507 
Net income$14,230 $29,733 $46,928 $163,628 
Schedule of Ciena's Geographic Distribution of Revenue and Long-Lived Assets For the periods indicated, Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets was as follows (in thousands):
July 27,
2024		October 28,
2023
Canada$248,024 $229,707 
United States46,781 46,933 
Other International33,073 38,647 
Total$327,878 $315,287