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Legal settlements (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($)
Legal Settlements [Abstract] |
Legal settlement charge | $ 6.5
LegalSettlementChargeForLegalFees | 0.7
Payments for Legal Settlements | 7.5
Gross legal settlement award | 8.8
Legal settlements | $ 5.3

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- Definition Gross legal settlement award, before legal fees + References No definition available. + Details
Name: | icui_Grosslegalsettlementaward
Namespace Prefix: | icui_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Reimbursement of legal fees and expenses associated wtih an arbitration ruling. + References No definition available. + Details
Name: | icui_LegalSettlementChargeForLegalFees
Namespace Prefix: | icui_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Legal Settlements [Abstract] + References No definition available. + Details
Name: | icui_LegalSettlementsAbstract
Namespace Prefix: | icui_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Legal settlement charge + References No definition available. + Details
Name: | icui_Legalsettlementcharge
Namespace Prefix: | icui_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net legal settlement + References No definition available. + Details
Name: | icui_Netlegalsettlement
Namespace Prefix: | icui_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForLegalSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration