SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 segment	Mar. 31, 2013
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1
Product sales by operating segment and product area
Product sales	$ 89,978	$ 87,478
Americas
Product sales by operating segment and product area
Product sales	59,279	59,113
International
Product sales by operating segment and product area
Product sales	30,699	28,365
Sports Medicine
Product sales by operating segment and product area
Product sales	63,797	59,616
Sports Medicine | Americas
Product sales by operating segment and product area
Product sales	40,179	38,862
Sports Medicine | International
Product sales by operating segment and product area
Product sales	23,618	20,754
ENT
Product sales by operating segment and product area
Product sales	24,343	25,616
ENT | Americas
Product sales by operating segment and product area
Product sales	18,785	19,748
ENT | International
Product sales by operating segment and product area
Product sales	5,558	5,868
Other Revenue
Product sales by operating segment and product area
Product sales	1,838	2,246
Other Revenue | Americas
Product sales by operating segment and product area
Product sales	315	503
Other Revenue | International
Product sales by operating segment and product area
Product sales	$ 1,523	$ 1,743