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OTHER BALANCE SHEET DETAILS (Tables) | 6 Months Ended
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Apr. 27, 2024
Balance Sheet Related Disclosures [Abstract] |
Schedule of Other Long-term Assets | As of the dates indicated, other long-term assets are comprised of the following (in thousands):
| April 27, 2024 |  | October 28, 2023
Maintenance spares inventory, net | $ | 62,331 |  |  | $ | 54,042 |
Forward starting interest rate swaps | 30,296 |  |  | 24,953 |
Equity investments(1) | 16,304 |  |  | 48 |
Deferred compensation plan assets | 14,479 |  |  | 11,456 |
Capitalized contract acquisition costs | 7,471 |  |  | 6,879 |
Cloud computing arrangements(2) | 7,265 |  |  | 8,589 |
Deferred debt issuance costs, net | 1,879 |  |  | 1,956 |
Restricted cash | 166 |  |  | 168 |
Other | 11,005 |  |  | 8,362 |
| $ | 151,196 |  |  | $ | 116,453 |
(1) Increase is due to an equity investment in a privately held technology company d uring the second quarter of fiscal 2024. (2) Amortization of cloud computing arrangements was $2.4 million and $1.2 million during the first six months of fiscal 2024 and fiscal 2023, respectively.
Schedule of Accrued Liabilities | As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands):
| April 27, 2024 |  | October 28, 2023
Compensation, payroll related tax and benefits | $ | 130,308 |  |  | $ | 159,530 |
Warranty | 49,896 |  |  | 57,089 |
Vacation | 31,687 |  |  | 29,503 |
Income taxes payable | 7,438 |  |  | 16,341 |
Foreign currency forward contracts | 6,173 |  |  | 14,509 |
Interest payable | 4,807 |  |  | 4,514 |
Finance lease liabilities | 4,234 |  |  | 3,953 |
Other | 120,715 |  |  | 145,980 |
| $ | 355,258 |  |  | $ | 431,419 |
Schedule of Accrued Warranties | The following table summarizes the activity in Ciena’s accrued warranty for the periods indicated (in thousands):
|  | Beginning Balance |  |  |  | Current Period Provisions |  | Settlements |  | Ending Balance
Six Months Ended April 29, 2023 |  | $ | 45,503 |  |  |  |  | 13,577 |  |  | (9,893) |  |  | $ | 49,187 |
Six Months Ended April 27, 2024 |  | $ | 57,089 |  |  |  |  | 8,629 |  |  | (15,822) |  |  | $ | 49,896 |
Schedule of Contract Balances | The following table provides information about receivables, contract assets and contract liabilities (deferred revenue) from contracts with customers as of the dates indicated (in thousands):
|  | Balance at April 27, 2024 |  | Balance at October 28, 2023
Accounts receivable, net |  | $ | 840,131 |  |  | $ | 1,003,876 |
Contract assets for unbilled accounts receivable, net |  | $ | 151,896 |  |  | $ | 150,312 |
Deferred revenue |  | $ | 277,354 |  |  | $ | 228,460 |
As of the dates indicated, deferred revenue is comprised of the following (in thousands):
| April 27, 2024 |  | October 28, 2023
Products | $ | 22,583 |  |  | $ | 28,353 |
Services | 254,771 |  |  | 200,107 |
Total deferred revenue | 277,354 |  |  | 228,460 |
Less current portion | (196,989) |  |  | (154,419) |
Long-term deferred revenue | $ | 80,365 |  |  | $ | 74,041 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-8 + Details
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