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Selected Statements of Operations Data (Narrative) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Quarterly Financial Data [Abstract] |  |
Liabilities related to restructuring plan | $ 0 | $ 80

X
- Definition The amount of liabilities of restructuring plan. + References No definition available. + Details
Name: | crnt_LiabilitiesOfRestructuringPlan
Namespace Prefix: | crnt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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