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Sale of Breg and Disposition of Sports Medicine GBU - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
May 24, 2012
Mar. 31, 2013
Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Indemnification Expense   $ 4,000,000  
Breg Orthofix Holdings, Inc [Member]
     
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Obligations under guarantee     2,000,000
Orthofix Inc [Member] | Breg Orthofix Holdings, Inc [Member]
     
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of outstanding shares of Breg 157,500,000    
Prepayment of outstanding company indebtedness 145,000,000    
Fair value of liability 2,000,000    
Period of indemnification (in years)   3 years  
Obligations under guarantee   $ 1,400,000 $ 1,600,000