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v3.25.4

Restructuring, Strategic Transaction and Integration Strategic Transaction and Integration Expenses (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Restructuring and Related Activities [Abstract] |  |  |
Strategic Transaction and Integration | $ 36.5 | $ 40.2 | $ 35.6

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- Definition Strategic Transaction and Integration + References No definition available. + Details
Name: | icui_StrategicTransactionandIntegration
Namespace Prefix: | icui_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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