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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2013
Unit
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2009
Foreign Currency Translation [Line Items]                          
Transactional foreign currency gains and (losses), including those generated from intercompany operations                   $ (500,000)ofix_ForeignCurrencyExchangeGainLoss $ (400,000)ofix_ForeignCurrencyExchangeGainLoss $ (1,700,000)ofix_ForeignCurrencyExchangeGainLoss  
Property plant and equipment, gross 143,374,000us-gaap_PropertyPlantAndEquipmentGross       130,848,000us-gaap_PropertyPlantAndEquipmentGross       143,374,000us-gaap_PropertyPlantAndEquipmentGross 143,374,000us-gaap_PropertyPlantAndEquipmentGross 130,848,000us-gaap_PropertyPlantAndEquipmentGross    
Property plant and equipment, accumulated depreciation 35,400,000us-gaap_PropertyPlantAndEquipmentOwnedAccumulatedDepreciation               35,400,000us-gaap_PropertyPlantAndEquipmentOwnedAccumulatedDepreciation 35,400,000us-gaap_PropertyPlantAndEquipmentOwnedAccumulatedDepreciation      
Number of reporting units                   4ofix_NumberOfReportingUnits      
Impairment of goodwill                 19,193,000us-gaap_GoodwillImpairmentLoss 19,193,000us-gaap_GoodwillImpairmentLoss       
Estimated related fee                   800,000ofix_CostRelatedToSaleOfAccountsReceivable 600,000ofix_CostRelatedToSaleOfAccountsReceivable    
Advertising expense                   200,000us-gaap_AdvertisingExpense 300,000us-gaap_AdvertisingExpense 500,000us-gaap_AdvertisingExpense  
Net sales 105,886,000us-gaap_SalesRevenueNet 91,806,000us-gaap_SalesRevenueNet 97,640,000us-gaap_SalesRevenueNet 102,279,000us-gaap_SalesRevenueNet 115,607,000us-gaap_SalesRevenueNet 105,818,000us-gaap_SalesRevenueNet 111,601,000us-gaap_SalesRevenueNet 107,163,000us-gaap_SalesRevenueNet   397,611,000us-gaap_SalesRevenueNet 440,189,000us-gaap_SalesRevenueNet 435,519,000us-gaap_SalesRevenueNet  
Musculoskeletal Transplant Foundation ("MTF") [Member]                          
Foreign Currency Translation [Line Items]                          
Expenditures for other research and development                   2,500,000us-gaap_OtherResearchAndDevelopmentExpense
/ us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis
= ofix_MusculoskeletalTransplantFoundationMember
3,000,000us-gaap_OtherResearchAndDevelopmentExpense
/ us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis
= ofix_MusculoskeletalTransplantFoundationMember
0us-gaap_OtherResearchAndDevelopmentExpense
/ us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis
= ofix_MusculoskeletalTransplantFoundationMember
 
Customers and Distributors Based in Europe [Member]                          
Foreign Currency Translation [Line Items]                          
Net sales                   52,000,000us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
     
Collaborative Arrangement [Member] | Musculoskeletal Transplant Foundation ("MTF") [Member]                          
Foreign Currency Translation [Line Items]                          
Period of agreement with MTF                         10 years
Extended Period of existing agreement with MTF                   15 years      
Marketing fee                   48,100,000us-gaap_MarketingExpense
/ us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis
= ofix_MusculoskeletalTransplantFoundationMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementMember
46,500,000us-gaap_MarketingExpense
/ us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis
= ofix_MusculoskeletalTransplantFoundationMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementMember
36,800,000us-gaap_MarketingExpense
/ us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis
= ofix_MusculoskeletalTransplantFoundationMember
/ us-gaap_TypeOfArrangementAxis
= us-gaap_CollaborativeArrangementMember
 
Spine Fixation and our Extremity Fixation reportable units [Member]                          
Foreign Currency Translation [Line Items]                          
Impairment of goodwill   $ 19,200,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationAndExtremityFixationMember
              $ 19,200,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ofix_SpineFixationAndExtremityFixationMember
     
Developed Technology [Member]                          
Foreign Currency Translation [Line Items]                          
Weighted average amortization period ( in years)                   11 years