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BALANCE SHEET DETAILS- Schedule of Other Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
PCBAs | $ 37,980 | $ 18,599
Cloud computing arrangements | 5,223 | 2,523
Strategic investment | 3,000 | 0
Other | 845 | 1,130
Total | $ 47,048 | $ 22,252

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- Definition Cloud Computing Arrangements + References No definition available. + Details
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Namespace Prefix: | irtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Printed Circuit Board Assemblies + References No definition available. + Details
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Namespace Prefix: | irtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Strategic investment + References No definition available. + Details
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Namespace Prefix: | irtc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
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- Definition Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Amount of noncurrent assets classified as other. + 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(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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