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SHORT-TERM AND LONG-TERM DEBT (Tables)
3 Months Ended
Jan. 29, 2022
Debt Disclosure [Abstract]  
Schedule of Carrying Values and Estimated Fair Values of Convertible Notes
The net carrying value of Ciena’s 2025 Term Loan was comprised of the following for the periods indicated (in thousands):
January 29, 2022October 30, 2021
Principal BalanceUnamortized DiscountDeferred Debt Issuance CostsNet Carrying ValueNet Carrying Value
2025 Term Loan$680,873 $(1,170)$(2,188)$677,515 $677,285 
Schedule of Long-term Debt Instruments The net carrying value of the 2030 Notes was comprised of the following for the periods indicated (in thousands):
January 29, 2022
Principal BalanceDeferred Debt Issuance CostsNet Carrying Value
2030 Senior Notes 4.00% fixed-rate
$400,000 $(5,322)$394,678