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LEASES (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2019
Lessee Disclosure [Abstract] |
Lease Term | Between 2019 and 2028

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- Definition Lease term duration. + References No definition available. + Details
Name: | itrn_LeaseTerm
Namespace Prefix: | itrn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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