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Business Segment Information - Summary of Net Margin, Defined as Gross Profit Less Sales and Marketing Expenses from Continuing Operations by SBU Reporting Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Total net margin	$ 26,138ofix_NetMargin	$ 32,070ofix_NetMargin
General and administrative	21,164us-gaap_GeneralAndAdministrativeExpense	17,276us-gaap_GeneralAndAdministrativeExpense
Research and development	5,845us-gaap_ResearchAndDevelopmentExpense	5,933us-gaap_ResearchAndDevelopmentExpense
Amortization of intangible assets	405us-gaap_AmortizationOfIntangibleAssets	584us-gaap_AmortizationOfIntangibleAssets
Costs related to the accounting review and restatements	5,916ofix_AccountingReviewAndRestatementCosts	8,306ofix_AccountingReviewAndRestatementCosts
Operating loss	(7,192)us-gaap_OperatingIncomeLoss	(29)us-gaap_OperatingIncomeLoss
Operating Segments [Member] | BioStim [Member]
Segment Reporting Information [Line Items]
Total net margin	14,013ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_BiostimMember	15,020ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_BiostimMember
Operating Segments [Member] | Biologics [Member]
Segment Reporting Information [Line Items]
Total net margin	5,944ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_BiologicsMember	6,502ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_BiologicsMember
Operating Segments [Member] | Extremity Fixation [Member]
Segment Reporting Information [Line Items]
Total net margin	7,016ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_ExtremityFixationMember	6,933ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_ExtremityFixationMember
Operating Segments [Member] | Spine Fixation [Member]
Segment Reporting Information [Line Items]
Total net margin	(529)ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_SpineFixationMember	4,059ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = ofix_SpineFixationMember
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total net margin	(306)ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember	(444)ofix_NetMargin / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Material Reconciling Items [Member]
Segment Reporting Information [Line Items]
General and administrative	21,164us-gaap_GeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember	17,276us-gaap_GeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember
Research and development	5,845us-gaap_ResearchAndDevelopmentExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember	5,933us-gaap_ResearchAndDevelopmentExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember
Amortization of intangible assets	405us-gaap_AmortizationOfIntangibleAssets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember	584us-gaap_AmortizationOfIntangibleAssets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember
Costs related to the accounting review and restatements	$ 5,916ofix_AccountingReviewAndRestatementCosts / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember	$ 8,306ofix_AccountingReviewAndRestatementCosts / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember

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Net margin.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756



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