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v3.25.2

Long-Term Obligations Principal Payment (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($)
Debt Disclosure [Abstract] |  |  |  |
Term A principal payment % First 2 Years | 0.0250 |  | 0.0250 |
Term A Principal Payment % Year 3 and 4 | 0.0500 |  | 0.0500 |
Term A Principal Payment % in Year 5 | 0.0750 |  | 0.0750 |
Term Loan B Principal Payment % | 0.0025 |  | 0.0025 |
Debt Instrument, Periodic Payment, Principal |  |  | $ 247,800,000 | $ 25,500,000
DebtInstrumentAdditionalPrepaymentPrincipal | $ 200,000,000 | $ 35,000,000 |  |

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- Definition DebtInstrumentAdditionalPrepaymentPrincipal + References No definition available. + Details
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Namespace Prefix: | icui_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Term A principal payment % First 2 Years + References No definition available. + Details
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Namespace Prefix: | icui_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition Term A Principal Payment % in Year 5 + References No definition available. + Details
Name: | icui_TermAPrincipalPaymentInYear5
Namespace Prefix: | icui_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition Term A Principal Payment % Year 3 and 4 + References No definition available. + Details
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Namespace Prefix: | icui_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition Term Loan B Principal Payment % + References No definition available. + Details
Name: | icui_TermLoanBPrincipalPayment
Namespace Prefix: | icui_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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

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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration