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GOODWILL (Narrative) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Goodwill [Line Items] |  |  |  |  |
Goodwill impairment loss | $ 879,000us-gaap_GoodwillImpairmentLoss | [1] | $ 3,093,000us-gaap_GoodwillImpairmentLoss | [1] | $ 672,000us-gaap_GoodwillImpairmentLoss
Accumulated impairment loss | 6,424,000us-gaap_GoodwillImpairedAccumulatedImpairmentLoss |  | 5,545,000us-gaap_GoodwillImpairedAccumulatedImpairmentLoss |  | 2,452,000us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Certain Reporting Units [Member] |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill impairment loss | 900,000us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitsMember |  | 3,100,000us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitsMember |  |
Term used for projected net cash flows | 3 years |  |  |  |
Discount rate | 16.90%us-gaap_FairValueInputsDiscountRate / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitsMember |  |  |  |
Growth rate | 0.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitsMember |  |  |  |
Certain Reporting Unit One [Member] |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill impairment loss |  |  | $ 3,100,000us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitMember |  |
Term used for projected net cash flows |  |  | 3 years |  |
Discount rate |  |  | 17.50%us-gaap_FairValueInputsDiscountRate / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitMember |  |
Growth rate |  |  | 0.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate / us-gaap_StatementBusinessSegmentsAxis = itrn_CertainReportingUnitMember |  |
[1] | During 2014, 2013 and 2012, the Company recorded an amount of US$ 879,000 US$ 3,093,000 and US$ 672,000, respectively, as impairment with respect to goodwill.

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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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