REVENUES FROM CONTRACTS WITH CUSTOMERS (Schedule of Revenues Disaggregated by Major Source) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenue	$ 388,647	$ 370,232	$ 258,665	$ 354,324	$ 395,127	$ 379,095	$ 383,645	$ 359,690	$ 1,371,868	$ 1,517,557	$ 1,472,441
Codman Specialty Surgical
Disaggregation of Revenue [Line Items]
Total revenue									894,831	996,206	963,929
Codman Specialty Surgical | Neurosurgery
Disaggregation of Revenue [Line Items]
Total revenue									716,339	767,793	740,268
Codman Specialty Surgical | Instruments
Disaggregation of Revenue [Line Items]
Total revenue									178,492	228,413	223,661
Orthopedics and Tissue Technologies
Disaggregation of Revenue [Line Items]
Total revenue									477,037	521,351	508,512
Orthopedics and Tissue Technologies | Wound Reconstruction
Disaggregation of Revenue [Line Items]
Total revenue									293,038	322,739	311,565
Orthopedics and Tissue Technologies | Extremity Orthopedics
Disaggregation of Revenue [Line Items]
Total revenue									78,316	90,082	90,588
Orthopedics and Tissue Technologies | Private Label
Disaggregation of Revenue [Line Items]
Total revenue									$ 105,683	$ 108,530	$ 106,359