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SEGMENTS AND ENTITY-WIDE DISCLOSURES
 6 Months Ended
Apr. 29, 2023
Segment Reporting [Abstract]  
SEGMENTS AND ENTITY-WIDE DISCLOSURES SEGMENTS AND ENTITY-WIDE DISCLOSURES
Segment Reporting
Ciena has the following operating segments for reporting purposes: (i) Networking Platforms; (ii) Platform Software and Services; (iii) Blue Planet Automation Software and Services; and (iv) Global Services.
Ciena's long-lived assets, including equipment, building, furniture and fixtures, right-of-use (“ROU”) assets, finite-lived intangible assets, and maintenance spares, are not reviewed by Ciena's chief operating decision maker for purposes of evaluating performance and allocating resources. As of April 29, 2023, equipment, building, furniture and fixtures, net, totaled $278.3 million, and operating ROU assets totaled $41.1 million both of which support asset groups within Ciena’s four operating segments and unallocated selling and general and administrative activities. As of April 29, 2023, finite-lived intangible assets, goodwill, and maintenance spares are assigned to asset groups within the following segments (in thousands):
April 29, 2023
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Other intangible assets, net$207,709 — 23,605 — $231,314 
Goodwill$201,124 156,191 89,049 — $446,364 
Maintenance spares, net$— — — 45,920 $45,920 

Segment Profit (Loss)
Segment profit (loss) is determined based on internal performance measures used by Ciena’s chief executive officer to assess the performance of each operating segment in a given period. In connection with that assessment, the chief executive officer excludes the following items: selling and marketing costs; general and administrative costs; significant asset impairments and restructuring costs; amortization of intangible assets; acquisition and integration costs; interest and other income, net; interest expense; and provision for income taxes.
The table below sets forth Ciena’s segment profit (loss) and the reconciliation to net income for the periods indicated (in thousands):
Quarter EndedSix Months Ended
 April 29,April 30,April 29,April 30,
 2023202220232022
Segment profit (loss):
Networking Platforms$214,754 $152,769 $416,901 $286,894 
Platform Software and Services40,687 43,556 86,337 93,052 
Blue Planet Automation Software and Services(6,912)(6,520)(17,971)(7,554)
Global Services49,161 52,652 86,639 105,843 
Total segment profit297,690 242,457 571,906 478,235 
Less: Non-performance operating expenses 
  Selling and marketing125,083 119,939 248,890 238,820 
  General and administrative50,939 45,572 101,835 90,070 
  Significant asset impairments and restructuring costs8,153 9,102 12,451 12,511 
  Amortization of intangible assets9,845 8,920 17,286 17,838 
Acquisition and integration costs857 495 3,415 563 
Add: Other non-performance financial items
Interest and other income, net8,551 808 40,524 4,494 
Interest expense(23,889)(11,985)(39,759)(20,633)
Less: Provision for income taxes29,821 8,330 54,899 17,549 
Net income $57,654 $38,922 $133,895 $84,745 

Entity-Wide Reporting
The following table reflects Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets, with any country accounting for at least 10% of total equipment, building, furniture and fixtures, net, and operating ROU assets specifically identified. Equipment, building, furniture and fixtures, net, and operating ROU assets attributable to geographic regions outside of the United States and Canada are reflected as “Other International.” For the periods below, Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets was as follows (in thousands):
April 29,
2023		October 29,
2022
Canada$235,929 $226,451 
United States43,847 47,515 
Other International39,687 38,921 
Total$319,463 $312,887