SEGMENT AND GEOGRAPHIC INFORMATION - Net Sales and Profit by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Net Sales
Total Revenues	$ 357,082	$ 258,636
Segment Profit
Operating income	25,579	9,959
Amortization	(5,390)	(4,101)
Codman Specialty Surgical
Segment Net Sales
Total Revenues	236,115	156,290
Orthopedics and Tissue Technologies
Segment Net Sales
Total Revenues	120,967	102,346
Operating Segments
Segment Profit
Operating income	121,929	89,782
Operating Segments | Codman Specialty Surgical
Segment Profit
Operating income	89,491	62,703
Operating Segments | Orthopedics and Tissue Technologies
Segment Profit
Operating income	32,438	27,079
Segment Reconciling Items
Segment Profit
Amortization	(5,390)	(4,101)
Corporate and other
Segment Profit
Operating income	$ (90,960)	$ (75,722)