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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 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Sales Information [Line Items]        
Total net margin $ 33,558ofix_ContributionsMargin $ 31,217ofix_ContributionsMargin $ 65,628ofix_ContributionsMargin $ 61,811ofix_ContributionsMargin
General and administrative 17,553us-gaap_GeneralAndAdministrativeExpense 15,181us-gaap_GeneralAndAdministrativeExpense 34,829us-gaap_GeneralAndAdministrativeExpense 33,422us-gaap_GeneralAndAdministrativeExpense
Research and development 6,313us-gaap_ResearchAndDevelopmentExpense 8,551us-gaap_ResearchAndDevelopmentExpense 12,246us-gaap_ResearchAndDevelopmentExpense 14,292us-gaap_ResearchAndDevelopmentExpense
Amortization of intangible assets 661us-gaap_AmortizationOfIntangibleAssets 565us-gaap_AmortizationOfIntangibleAssets 1,245us-gaap_AmortizationOfIntangibleAssets 1,109us-gaap_AmortizationOfIntangibleAssets
Costs related to the accounting review and restatement 2,327ofix_AccountingReviewAndRestatementCosts   10,633ofix_AccountingReviewAndRestatementCosts  
Operating income 6,704us-gaap_OperatingIncomeLoss 6,920us-gaap_OperatingIncomeLoss 6,675us-gaap_OperatingIncomeLoss 12,988us-gaap_OperatingIncomeLoss
Operating Segments [Member] | BioStim [Member]        
Sales Information [Line Items]        
Total net margin 17,706ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember		 18,035ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember		 32,726ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember		 35,218ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember
Operating Segments [Member] | Biologics [Member]        
Sales Information [Line Items]        
Total net margin 6,496ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiologicsMember		 5,706ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiologicsMember		 12,997ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiologicsMember		 11,725ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiologicsMember
Operating Segments [Member] | Extremity Fixation [Member]        
Sales Information [Line Items]        
Total net margin 6,656ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember		 5,250ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember		 13,590ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember		 10,891ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember
Operating Segments [Member] | Spine Fixation [Member]        
Sales Information [Line Items]        
Total net margin 3,130ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember		 2,708ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember		 7,189ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember		 4,883ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember
Corporate, Non-Segment [Member]        
Sales Information [Line Items]        
Total net margin (430)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember		 (482)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember		 (874)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember		 (906)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
Material Reconciling Items [Member]        
Sales Information [Line Items]        
General and administrative 17,553us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 15,181us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 34,829us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 33,422us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Research and development 6,313us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 8,551us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 12,246us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 14,292us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Amortization of intangible assets 661us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 565us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 1,245us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 1,109us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Costs related to the accounting review and restatement 2,327ofix_AccountingReviewAndRestatementCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		   10,633ofix_AccountingReviewAndRestatementCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		  
Operating income $ 6,704us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 6,920us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 6,675us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 12,988us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember