XML 19 R19.htm IDEA: XBRL DOCUMENT
v3.20.1

Prepaid Expenses and Other | 3 Months Ended
--- | ---
Jan. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
PREPAID EXPENSES AND OTHER | PREPAID EXPENSES AND OTHER As of the dates indicated, prepaid expenses and other are comprised of the following (in thousands):
| January 31, 2020 |  | October 31, 2019
Prepaid VAT and other taxes | $ | 87,706 |  |  | $ | 84,706 |
Contract assets for unbilled accounts receivable | 83,717 |  |  | 84,046 |
Prepaid expenses | 65,806 |  |  | 48,680 |
Product demonstration equipment, net | 37,866 |  |  | 38,900 |
Other non-trade receivables | 36,236 |  |  | 28,136 |
Capitalized contract acquisition costs | 9,391 |  |  | 11,677 |
Deferred deployment expense | 318 |  |  | 125 |
Derivative assets | 273 |  |  | 1,570 |
Restricted cash | — |  |  | 74 |
| $ | 321,313 |  |  | $ | 297,914 |
Depreciation of product demonstration equipment was $2.2 million during the first three months of each of fiscal 2020 and 2019. For further discussion on contract assets and capitalized contract acquisition costs, see Note 3 above.

X
- Definition Prepaid Expenses and Other [Text Block] + References No definition available. + Details
Name: | cien_PrepaidExpensesAndOtherTextBlock
Namespace Prefix: | cien_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration