XML 28 R18.htm IDEA: XBRL DOCUMENT
v3.22.1

INVENTORIES | 6 Months Ended
--- | ---
Apr. 30, 2022
Inventory Disclosure [Abstract] |
INVENTORIES | INVENTORIES As of the dates indicated, inventories are comprised of the following (in thousands):
| April 30, 2022 |  | October 30, 2021
Raw materials | $ | 373,517 |  |  | $ | 175,399 |
Work-in-process | 12,268 |  |  | 10,260 |
Finished goods | 157,919 |  |  | 180,800 |
Deferred cost of goods sold | 28,921 |  |  | 44,765 |
Gross inventories | 572,625 |  |  | 411,224 |
Reserve for inventory excess and obsolescence | (35,747) |  |  | (36,959) |
Inventories, net | $ | 536,878 |  |  | $ | 374,265 |
The increase in raw materials inventory is related to the steps Ciena is taking to mitigate the impact of current supply chain constraints and the global market shortage of semiconductor parts. Ciena writes down its inventory for estimated obsolescence or unmarketable inventory by an amount equal to the difference between the cost of inventory and the estimated net realizable value based on assumptions about future demand, which are affected by changes in Ciena’s strategic direction, discontinuance of a product or introduction of newer versions of products, declines in the sales of or forecasted demand for certain products, and general market conditions. During the first six months of fiscal 2022, Ciena recorded a provision for inventory excess and obsolescence of $8.5 million, primarily related to a decrease in the forecasted demand for certain Networking Platforms products. Deductions from the provision for excess and obsolete inventory relate primarily to disposal activities.

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

X
- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI https://asc.fasb.org/topic&trid=2126998 + Details
Name: | us-gaap_InventoryDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration