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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation for Continuing Operations (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Disclosure [Abstract]        
Statutory U.S. federal income tax rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate  
State taxes, net (19.20%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 3.70%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes (132.70%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes  
Foreign rate differential 4.80%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential (4.20%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential (113.60%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential  
Valuation allowance-foreign losses (36.90%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 9.00%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 361.30%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance  
Italian subsidiary intangible 21.60%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization (3.20%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization 177.60%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization  
Goodwill impairment (60.90%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses      
Domestic manufacturing deduction 2.20%us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities (2.30%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities 125.00%us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities  
Withholding taxes (15.80%)ofix_EffectiveIncomeTaxRateReconciliationWithholdingTaxes 2.40%ofix_EffectiveIncomeTaxRateReconciliationWithholdingTaxes (123.00%)ofix_EffectiveIncomeTaxRateReconciliationWithholdingTaxes  
Settlement of U.S. Government resolutions   (1.80%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic (698.50%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic  
Other items, net (2.50%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments (3.90%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments 31.90%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments  
Income tax expense/effective rate (71.70%)us-gaap_EffectiveIncomeTaxRateContinuingOperations 34.70%us-gaap_EffectiveIncomeTaxRateContinuingOperations (1059.60%)us-gaap_EffectiveIncomeTaxRateContinuingOperations  
Statutory U.S. federal income tax rate $ (3,711)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ 24,179us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ (477)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate  
State taxes, net 2,039us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 2,536us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 1,809us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes  
Foreign rate differential (510)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (2,894)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential 1,549us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential  
Valuation allowance-foreign losses 3,913us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 6,189us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 4,924us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance  
Italian subsidiary intangible (2,288)us-gaap_IncomeTaxReconciliationNondeductibleExpenseAmortization (2,214)us-gaap_IncomeTaxReconciliationNondeductibleExpenseAmortization (2,421)us-gaap_IncomeTaxReconciliationNondeductibleExpenseAmortization  
Goodwill impairment 6,452us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses      
Domestic manufacturing deduction (233)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities (1,567)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities (1,703)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities  
Withholding taxes 1,676ofix_IncomeTaxReconciliationWithholdingTaxes 1,679ofix_IncomeTaxReconciliationWithholdingTaxes 1,676ofix_IncomeTaxReconciliationWithholdingTaxes  
Settlement of U.S. Government resolutions   (1,260)us-gaap_IncomeTaxReconciliationTaxSettlementsDomestic 9,520us-gaap_IncomeTaxReconciliationTaxSettlementsDomestic  
Other items, net 264us-gaap_IncomeTaxReconciliationOtherAdjustments (2,704)us-gaap_IncomeTaxReconciliationOtherAdjustments (434)us-gaap_IncomeTaxReconciliationOtherAdjustments  
Income tax expense/effective rate $ 7,602us-gaap_IncomeTaxExpenseBenefit $ 23,944us-gaap_IncomeTaxExpenseBenefit $ 14,443us-gaap_IncomeTaxExpenseBenefit $ (6,028)us-gaap_IncomeTaxExpenseBenefit