OTHER BALANCE SHEET DETAILS (Tables)
 6 Months Ended
Apr. 29, 2023
Balance Sheet Related Disclosures [Abstract]  
Schedule of Accrued Liabilities As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands):
April 29,
2023		October 29,
2022
Compensation, payroll related tax and benefits$130,526 $126,338 
Warranty49,187 45,503 
Income taxes payable41,025 11,472 
Vacation29,740 26,396 
Foreign currency forward contracts10,364 15,604 
Interest payable5,692 4,793 
Finance lease liabilities3,904 3,758 
Other110,531 126,918 
 $380,969 $360,782 
Schedule of Accrued Warranties
The following table summarizes the activity in Ciena’s accrued warranty for the periods indicated (in thousands):
Beginning BalanceCurrent Period ProvisionsSettlementsEnding Balance
Six Months Ended April 30, 2022
$48,019 7,228 (9,563)$45,684 
Six Months Ended April 29, 2023
$45,503 13,577 (9,893)$49,187 
Schedule of Contract Balances The following table provides information about receivables, contract assets and contract liabilities (deferred revenue) from contracts with customers (in thousands):
Balance at April 29, 2023Balance at October 29, 2022
Accounts receivable, net$1,036,688 $920,772 
Contract assets for unbilled accounts receivable, net$180,020 $156,039 
Deferred revenue$270,625 $200,235 
As of the dates indicated, deferred revenue is comprised of the following (in thousands):
April 29,
2023		October 29,
2022
Products$33,914 $19,814 
Services236,711 180,421 
 Total deferred revenue270,625 200,235 
Less current portion(202,818)(137,899)
Long-term deferred revenue$67,807 $62,336