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Summary of Intangible Asset Account Activity (Details) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022
Total Intangible Assets [Abstract] |  |
Intangible assets, gross beginning balance | $ 905,134 | $ 928,422
Effect of change in exchange rates | (2,231) | (47,113)
Intangible assets, gross ending balance | 902,903 | 881,309
Intangible liabilities, gross beginning balance | 23,900 | 23,900
Effect of change in exchange rates | 0 | 0
Intangible liabilities, gross ending balance | $ 23,900 | $ 23,900

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- Definition Finite-Lived Intangible Liabilities, Foreign Currency Translation Gain Loss + References No definition available. + Details
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- Definition Finite-lived intangible liabilities, Gross + References No definition available. + Details
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Namespace Prefix: | itri_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Total Intangible Assets [Abstract] + References No definition available. + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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