v3.26.1
SIGNIFICANT ASSET IMPAIRMENT AND RESTRUCTURING COSTS
 9 Months Ended
Aug. 01, 2026
Restructuring and Related Activities [Abstract]  
SIGNIFICANT ASSET IMPAIRMENT AND RESTRUCTURING COSTS SIGNIFICANT ASSET IMPAIRMENT AND RESTRUCTURING COSTS
Restructuring Costs

Ciena regularly monitors its spending to optimize operating expenses and to ensure that its strategic investments are aligned with its highest-growth demand opportunities. The following table sets forth the restructuring activity and balance of the restructuring liability accounts, which are included in accrued liabilities and other short-term obligations on the Condensed Consolidated Balance Sheets for the nine months ended August 1, 2026 (in thousands):
Workforce restructuringOther restructuring activitiesTotal
Balance at November 1, 2025$8,436 $— $8,436 
Charges1,815 

1,375 
(1)
3,190 
Cash payments(9,712)(1,375)(11,087)
Balance at August 1, 2026$539 $— $539 
Current restructuring liabilities$539 $— $539 
(1) Primarily represents costs related to restructured real estate facilities.
The following table sets forth the restructuring activity and balance of the restructuring liability accounts, which are included in accrued liabilities and other short-term obligations on the Condensed Consolidated Balance Sheets for the nine months ended August 2, 2025 (in thousands):
Workforce restructuringOther restructuring activitiesTotal
Balance at November 2, 2024$1,927 $— $1,927 
Charges1,996 3,266 
(1)
5,262 
Cash payments(3,389)(3,266)(6,655)
Balance at August 2, 2025$534 $— $534 
Current restructuring liabilities$534 $— $534 
(1) Primarily represents costs related to restructured real estate facilities.