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Business segment information - Operating Income (Loss) by GBU (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2013 | Mar. 31, 2012
Product Type Reporting Information [Line Items] |  |
Operating Income (Loss) by GBU | $ 8,087 | $ 17,920
Spine [Member] |  |
Product Type Reporting Information [Line Items] |  |
Operating Income (Loss) by GBU | 14,680 | 22,019
Orthopedics [Member] |  |
Product Type Reporting Information [Line Items] |  |
Operating Income (Loss) by GBU | 2,041 | 71
Corporate [Member] |  |
Product Type Reporting Information [Line Items] |  |
Operating Income (Loss) by GBU | $ (8,634) | $ (4,170)

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- Details
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Namespace Prefix: | ofix_
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Period Type: | duration

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration