REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Revenues Disaggregated by Major Source (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total Revenues	$ 386,861	$ 370,232	$ 1,136,924	$ 983,221
Codman Specialty Surgical
Disaggregation of Revenue [Line Items]
Total Revenues	256,497	239,323	754,575	640,541
Codman Specialty Surgical | Neurosurgery
Disaggregation of Revenue [Line Items]
Total Revenues	199,210	189,674	591,064	516,048
Codman Specialty Surgical | Instruments
Disaggregation of Revenue [Line Items]
Total Revenues	57,287	49,649	163,511	124,493
Tissue Technologies
Disaggregation of Revenue [Line Items]
Total Revenues	130,364	130,909	382,349	342,680
Tissue Technologies | Wound Reconstruction and Care
Disaggregation of Revenue [Line Items]
Total Revenues	99,744	82,115	291,058	210,673
Tissue Technologies | Extremity Orthopedics
Disaggregation of Revenue [Line Items]
Total Revenues	0	21,922	0	54,556
Tissue Technologies | Private Label
Disaggregation of Revenue [Line Items]
Total Revenues	$ 30,620	$ 26,872	$ 91,291	$ 77,451