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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 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]                        
Total net margin                   $ 136,818ofix_ContributionsMargin $ 115,231ofix_ContributionsMargin $ 160,692ofix_ContributionsMargin
General & administrative                   76,790us-gaap_GeneralAndAdministrativeExpense 64,830us-gaap_GeneralAndAdministrativeExpense 53,650us-gaap_GeneralAndAdministrativeExpense
Research and development                   24,994us-gaap_ResearchAndDevelopmentExpense 26,768us-gaap_ResearchAndDevelopmentExpense 28,577us-gaap_ResearchAndDevelopmentExpense
Amortization of intangible assets                   2,284us-gaap_AmortizationOfIntangibleAssets 2,687us-gaap_AmortizationOfIntangibleAssets 2,298us-gaap_AmortizationOfIntangibleAssets
Costs related to the accounting review and restatement                   15,614ofix_AccountingReviewAndRestatementCosts 12,945ofix_AccountingReviewAndRestatementCosts  
Impairment of goodwill                 19,193us-gaap_GoodwillImpairmentLoss   19,193us-gaap_GoodwillImpairmentLoss  
Charges related to U.S. Government resolutions                       (1,295)us-gaap_GainLossRelatedToLitigationSettlement
Operating income (loss) 3,953us-gaap_OperatingIncomeLoss 6,508us-gaap_OperatingIncomeLoss 6,704us-gaap_OperatingIncomeLoss (29)us-gaap_OperatingIncomeLoss (10,079)us-gaap_OperatingIncomeLoss (14,101)us-gaap_OperatingIncomeLoss 6,920us-gaap_OperatingIncomeLoss 6,068us-gaap_OperatingIncomeLoss   17,136us-gaap_OperatingIncomeLoss (11,192)us-gaap_OperatingIncomeLoss 74,872us-gaap_OperatingIncomeLoss
Extremity Fixation [Member]                        
Segment Reporting Information [Line Items]                        
Impairment of goodwill                 9,825us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember		      
Spine Fixation [Member]                        
Segment Reporting Information [Line Items]                        
Impairment of goodwill                 9,368us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember		      
Operating Segments [Member] | BioStim [Member]                        
Segment Reporting Information [Line Items]                        
Total net margin                   66,096ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember		 63,847ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember		 88,788ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiostimMember
Operating Segments [Member] | Biologics [Member]                        
Segment Reporting Information [Line Items]                        
Total net margin                   26,629ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiologicsMember		 24,794ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_BiologicsMember		 23,589ofix_ContributionsMargin
/ 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                   31,586ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember		 23,704ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_ExtremityFixationMember		 34,554ofix_ContributionsMargin
/ 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                   14,243ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember		 4,329ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember		 15,256ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationMember
Corporate, Non-Segment [Member]                        
Segment Reporting Information [Line Items]                        
Total net margin                   (1,736)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember		 (1,443)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember		 (1,495)ofix_ContributionsMargin
/ us-gaap_ConsolidationItemsAxis
= us-gaap_CorporateNonSegmentMember
Material Reconciling Items [Member]                        
Segment Reporting Information [Line Items]                        
General & administrative                   76,790us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 64,830us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 53,650us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Research and development                   24,994us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 26,768us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 28,577us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Amortization of intangible assets                   2,284us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 2,687us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 2,298us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Costs related to the accounting review and restatement                   15,614ofix_AccountingReviewAndRestatementCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 12,945ofix_AccountingReviewAndRestatementCosts
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		  
Impairment of goodwill                     19,193us-gaap_GoodwillImpairmentLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		  
Charges related to U.S. Government resolutions                       1,295us-gaap_GainLossRelatedToLitigationSettlement
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember
Operating income (loss)                   $ 17,136us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ (11,192)us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 74,872us-gaap_OperatingIncomeLoss
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember