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SEGMENT REPORTING (Narrative) (Details)	Dec. 31, 2019
Segment Reporting [Abstract]
Percentage of revenue	15.80%

X

- Definition

Percentage of total sales.

+ References

No definition available.

+ Details

Name:	itrn_PercentageOfRevenue
Namespace Prefix:	itrn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration