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CONTINGENT LIABILITIES (Brazilian Federal Communication Agency - Anatel) (Details) (Unfavorable Regulatory Action [Member]) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 29, 2014 USD ($) | Oct. 29, 2014 BRL | Oct. 20, 2011 USD ($) | Oct. 20, 2011 BRL | Dec. 31, 2014 USD ($) | Dec. 31, 2014 BRL
Contingent Liabilities, Liens and Guarantees [Line Items] |  |  |  |  |  |
Additional tax assessment | $ 1,000,000itrn_LossContingenciesAdditionalTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember | 2,678,226itrn_LossContingenciesAdditionalTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember |  |  |  |
Previous tax assessment |  |  | 1,900,000itrn_LossContingenciesPreviousTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember | 3,350,165itrn_LossContingenciesPreviousTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember | 1,700,000itrn_LossContingenciesPreviousTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember | 4,630,000itrn_LossContingenciesPreviousTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember
Aggregate tax assessment |  |  |  |  | $ 2,700,000itrn_LossContingenciesAggregateTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember | 7,300,000itrn_LossContingenciesAggregateTaxAssessment / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnfavorableRegulatoryActionMember

X
- Definition Represents amount of additional tax assessment. + References No definition available. + Details
Name: | itrn_LossContingenciesAdditionalTaxAssessment
Namespace Prefix: | itrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents amount of aggregate tax assessment. + References No definition available. + Details
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Namespace Prefix: | itrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents amount of previous tax assessment. + References No definition available. + Details
Name: | itrn_LossContingenciesPreviousTaxAssessment
Namespace Prefix: | itrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration