SUMMARY OF SIGNIFICANT ACCOUNT POLICIES (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Goodwill And Other Intangible Assets [Line Items]
Goodwill, gross		$ 292,980
Goodwill, December 31, 2011	292,980
Foreign currency translation	1,246
Goodwill, December 31, 2012	294,067
SeaSpine Inc. Acquisition
Goodwill And Other Intangible Assets [Line Items]
Goodwill acquired during the period	289
Ascension Orthopedics, Inc. Acquisition
Goodwill And Other Intangible Assets [Line Items]
Goodwill acquired during the period	(448)
U.S. Neurosurgery
Goodwill And Other Intangible Assets [Line Items]
Goodwill, gross		93,913
Goodwill, December 31, 2011	93,913
Foreign currency translation	399
Goodwill, December 31, 2012	94,312
U.S. Instruments
Goodwill And Other Intangible Assets [Line Items]
Goodwill, gross		57,270
Goodwill, December 31, 2011	57,270
Foreign currency translation	244
Goodwill, December 31, 2012	57,514
U.S. Extremities
Goodwill And Other Intangible Assets [Line Items]
Goodwill, gross		60,544
Goodwill, December 31, 2011	60,544
Foreign currency translation	257
Goodwill, December 31, 2012	60,353
U.S. Extremities | Ascension Orthopedics, Inc. Acquisition
Goodwill And Other Intangible Assets [Line Items]
Goodwill acquired during the period	(448)
U.S. Spine and Other
Goodwill And Other Intangible Assets [Line Items]
Goodwill, gross		55,693
Goodwill, December 31, 2011	55,693
Foreign currency translation	237
Goodwill, December 31, 2012	56,219
U.S. Spine and Other | SeaSpine Inc. Acquisition
Goodwill And Other Intangible Assets [Line Items]
Goodwill acquired during the period	289
International
Goodwill And Other Intangible Assets [Line Items]
Goodwill, gross		25,560
Goodwill, December 31, 2011	25,560
Foreign currency translation	109
Goodwill, December 31, 2012	$ 25,669