Business segment information - Additional Information (Detail) (Segment [Member])	12 Months Ended
Dec. 31, 2012 BS
Segment [Member]
Product Type Reporting Information [Line Items]
Number of GBUs	2

The number of Global Business Units of the entity.

No definition available.

Name:	ofix_NumberOfGlobalBusinessUnits
Namespace Prefix:	ofix_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration