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Strategic Transaction and Integration (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Restructuring and Related Activities [Abstract] |  |
Strategic Transaction and Integration | $ 10.8 | $ 8.3

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- Definition Strategic Transaction and Integration + 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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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration