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Intangible Assets - Summary of Carrying Amount and Accumulated Amortization of Identifiable Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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| Indefinite Lived And Finite Lived Intangible Assets [Line Items] | ||
| Total nonamortizable and amortizable intangible assets, Gross Assets | $ 42,012us-gaap_IntangibleAssetsGrossExcludingGoodwill | $ 38,620us-gaap_IntangibleAssetsGrossExcludingGoodwill |
| Total nonamortizable and amortizable intangible assets, Accumulated Amortization | 16,940infu_IntangibleAssetsAccumulatedAmortization | 14,438infu_IntangibleAssetsAccumulatedAmortization |
| Total nonamortizable and amortizable intangible assets, Net | 25,073us-gaap_IntangibleAssetsNetExcludingGoodwill | 24,182us-gaap_IntangibleAssetsNetExcludingGoodwill |
| Physician and Customer Relationships [Member] | ||
| Indefinite Lived And Finite Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, Gross Assets |
32,865us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = infu_PhysicianAndCustomerRelationshipsMember |
32,865us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = infu_PhysicianAndCustomerRelationshipsMember |
| Amortizable intangible assets, Accumulated Amortization |
14,755us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = infu_PhysicianAndCustomerRelationshipsMember |
12,564us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = infu_PhysicianAndCustomerRelationshipsMember |
| Amortizable intangible assets, Net |
18,111us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = infu_PhysicianAndCustomerRelationshipsMember |
20,301us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = infu_PhysicianAndCustomerRelationshipsMember |
| Non-Compete Agreements [Member] | ||
| Indefinite Lived And Finite Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, Gross Assets |
848us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |
848us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |
| Amortizable intangible assets, Accumulated Amortization |
778us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |
621us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |
| Amortizable intangible assets, Net |
70us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |
227us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_NoncompeteAgreementsMember |
| Software [Member] | ||
| Indefinite Lived And Finite Lived Intangible Assets [Line Items] | ||
| Amortizable intangible assets, Gross Assets |
6,299us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |
2,907us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |
| Amortizable intangible assets, Accumulated Amortization |
1,407us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |
1,253us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |
| Amortizable intangible assets, Net |
4,892us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |
1,654us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |
| Trade Names [Member] | ||
| Indefinite Lived And Finite Lived Intangible Assets [Line Items] | ||
| Nonamortizable intangible assets |
$ 2,000us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
$ 2,000us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
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Intangible assets accumulated amortization. No definition available.
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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount before accumulated amortization of intangible assets, excluding goodwill. No definition available.
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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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