REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Revenues Disaggregated by Major Source (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Total Revenues	$ 365,854	$ 278,834	$ 1,089,126	$ 819,634
Codman Specialty Surgical
Disaggregation of Revenue [Line Items]
Total Revenues	239,035	164,760	714,654	480,907
Codman Specialty Surgical | Neurosurgery
Disaggregation of Revenue [Line Items]
Total Revenues	171,680	95,887	509,166	276,574
Codman Specialty Surgical | Precision Tools and Instruments
Disaggregation of Revenue [Line Items]
Total Revenues	67,355	68,873	205,488	204,333
Orthopedics and Tissue Technologies
Disaggregation of Revenue [Line Items]
Total Revenues	126,819	114,074	374,472	338,727
Orthopedics and Tissue Technologies | Wound Reconstruction and Care
Disaggregation of Revenue [Line Items]
Total Revenues	78,290	69,667	225,003	194,177
Orthopedics and Tissue Technologies | Extremity Orthopedics
Disaggregation of Revenue [Line Items]
Total Revenues	22,706	22,912	71,244	71,193
Orthopedics and Tissue Technologies | Private Label
Disaggregation of Revenue [Line Items]
Total Revenues	$ 25,823	$ 21,495	$ 78,225	$ 73,357