SEGMENT AND GEOGRAPHIC INFORMATION - Net Sales and Profit by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Net Sales
Total Revenues	$ 365,854	$ 278,834	$ 1,089,126	$ 819,634
Segment Profit
Operating income	23,677	10,642	76,890	37,586
Amortization	(5,268)	(5,456)	(15,944)	(14,976)
Codman Specialty Surgical
Segment Net Sales
Total Revenues	239,035	164,760	714,654	480,907
Orthopedics and Tissue Technologies
Segment Net Sales
Total Revenues	126,819	114,074	374,472	338,727
Operating Segments
Segment Profit
Operating income	127,386	98,700	377,574	286,742
Operating Segments | Codman Specialty Surgical
Segment Profit
Operating income	91,871	68,289	272,480	198,242
Operating Segments | Orthopedics and Tissue Technologies
Segment Profit
Operating income	35,515	30,411	105,094	88,500
Segment Reconciling Items
Segment Profit
Amortization	(5,268)	(5,456)	(15,944)	(14,976)
Corporate and other
Segment Profit
Operating income	$ (98,441)	$ (82,602)	$ (284,740)	$ (234,180)