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SHORT-TERM AND LONG-TERM DEBT (Tables) | 9 Months Ended
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Aug. 02, 2025
Debt Disclosure [Abstract] |
Schedule of Carrying Values and Estimated Fair Values of Convertible Notes | The net carrying value of the Ciena’s term loans were comprised of the following as of the date indicated (in thousands):
|  | August 2, 2025 |  | November 2, 2024
|  | Principal Balance |  | Unamortized Discount |  | Deferred Debt Issuance Costs |  | Net Carrying Value |  | Net Carrying Value
Refinanced 2030 Term Loan |  | $ | 1,149,615 |  |  | $ | (3,738) |  |  | $ | (4,776) |  |  | $ | 1,141,101 |  |  | $ | — |
2030 Term Loan |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,148,347 |
The net carrying value of the 2030 Notes was comprised of the following as of the dates indicated (in thousands):
|  | August 2, 2025 |  | November 2, 2024 |  |
|  | Principal Balance |  | Deferred Debt Issuance Costs |  | Net Carrying Value |  | Net Carrying Value |  |
2030 Notes |  | $ | 400,000 |  |  | $ | (3,054) |  |  | $ | 396,946 |  |  | $ | 396,427 |  |  |

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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