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OTHER BALANCE SHEET DETAILS (Tables) | 12 Months Ended
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Oct. 30, 2021
Balance Sheet Related Disclosures [Abstract] |
Other long-term assets | As of the dates indicated, other long-term assets are comprised of the following (in thousands):
| October 30, 2021 |  | October 31, 2020
Maintenance spares inventory, net | $ | 55,696 |  |  | $ | 62,077 |
Deferred compensation plan assets | 12,968 |  |  | 8,213 |
Cost method equity investments | 8,578 |  |  | 13,408 |
Capitalized contract acquisition costs | 5,803 |  |  | 4,001 |
Deferred debt issuance costs, net(1) | 1,188 |  |  | 1,596 |
Restricted cash | 58 |  |  | 84 |
Other | 15,600 |  |  | 13,451 |
| $ | 99,891 |  |  | $ | 102,830 |
(1) Deferred debt issuance costs relate to Ciena’s senior secured asset-based revolving credit facility (the “ABL Credit Facility”) entered into during fiscal 2019 and its predecessor credit facility (described in Note 20 below). The amortization of deferred debt issuance costs for the ABL Credit Facility and its predecessor is included in interest expense, and was $0.4 million for fiscal 2021 and fiscal 2020, and $0.3 million for fiscal 2019.
Accrued liabilities | As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands):
| October 30, 2021 |  | October 31, 2020
Compensation, payroll related tax and benefits | $ | 201,119 |  |  | $ | 135,462 |
Warranty | 48,019 |  |  | 49,868 |
Vacation | 31,200 |  |  | 26,945 |
Income taxes payable | 13,577 |  |  | 6,348 |
Finance lease liabilities | 3,620 |  |  | 2,836 |
Interest payable | 598 |  |  | 672 |
Other | 111,152 |  |  | 112,001 |
| $ | 409,285 |  |  | $ | 334,132 |
Accrued warranty | The following table summarizes the activity in Ciena’s accrued warranty for the fiscal years indicated (in thousands):
Year Ended |  | Beginning Balance |  |  |  | Current Year Provisions |  |  |  | Settlements |  | Ending Balance
November 2, 2019 |  | $ | 44,740 |  |  |  |  | $ | 23,105 |  |  |  |  | $ | 19,347 |  |  | $ | 48,498 |
October 31, 2020 |  | $ | 48,498 |  |  |  |  | $ | 22,417 |  |  |  |  | $ | 21,047 |  |  | $ | 49,868 |
October 30, 2021 |  | $ | 49,868 |  |  |  |  | $ | 17,093 |  |  |  |  | $ | 18,942 |  |  | $ | 48,019 |
Deferred revenue | The following table provides information about receivables, contract assets and contract liabilities (deferred revenue) from contracts with customers (in thousands):
|  | Balance at October 30, 2021 |  | Balance at October 31, 2020
Accounts receivable, net |  | $ | 884,958 |  |  | $ | 719,405 |
Contract assets for unbilled accounts receivable, net |  | $ | 101,355 |  |  | $ | 85,843 |
Deferred revenue |  | $ | 175,464 |  |  | $ | 158,363 |
As of the dates indicated, deferred revenue is comprised of the following (in thousands):
| October 30, 2021 |  | October 31, 2020
Products | $ | 12,859 |  |  | $ | 17,534 |
Services | 162,605 |  |  | 140,829 |
| 175,464 |  |  | 158,363 |
Less current portion | (118,007) |  |  | (108,700) |
Long-term deferred revenue | $ | 57,457 |  |  | $ | 49,663 |
Other liabilities | As of the dates indicated, other long-term obligations are comprised of the following (in thousands):
| October 30, 2021 |  | October 31, 2020
Finance lease liabilities | $ | 62,583 |  |  | $ | 61,565 |
Interest rate swap liability | 15,928 |  |  | 28,513 |
Income tax liability | 63,412 |  |  | 16,386 |
Deferred compensation plan liability | 12,877 |  |  | 8,172 |
Other | 12,003 |  |  | 8,549 |
| $ | 166,803 |  |  | $ | 123,185 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details
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