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CIENA CORPORATION AND SIGNIFICANT ACCOUNTING POLICIES AND ESTIMATES - Narrative (Details) | 12 Months Ended
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Oct. 28, 2023
Significant Accounting Policies [Line Items] |
Expected economic lives of finite-lived intangible assets (in years) | 7 years
Expected number of years Spares usage cost is expensed | 4 years
One-time employee termination benefits related to service period (in days) | 60 days
Minimum |
Significant Accounting Policies [Line Items] |
Payment terms and cash received | 30 days
Maximum |
Significant Accounting Policies [Line Items] |
Payment terms and cash received | 90 days
Foreign exchange contract maturities | 24 months
Equipment, furniture and fixtures | Minimum |
Significant Accounting Policies [Line Items] |
Estimated useful lives capitalized and amortized straight-line (in years) | 3 years
Equipment, furniture and fixtures | Maximum |
Significant Accounting Policies [Line Items] |
Estimated useful lives capitalized and amortized straight-line (in years) | 5 years
Software and website development | Minimum |
Significant Accounting Policies [Line Items] |
Estimated useful lives capitalized and amortized straight-line (in years) | 2 years
Software and website development | Maximum |
Significant Accounting Policies [Line Items] |
Estimated useful lives capitalized and amortized straight-line (in years) | 5 years

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