GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) reporting_unit	Sep. 30, 2017 USD ($)
Goodwill [Line Items]
Number of reporting units | reporting_unit			3
Reporting unit, discount rate percentage	9.00%		9.00%
Goodwill, impairment	$ 0
Intangible assets, indefinite life, discount rate percentage	13.00%		13.00%
Impairment charge			$ 4,941,000	$ 3,290,000
Expected annual amortization expense, 2018	$ 71,600,000		71,600,000
Expected annual amortization expense, 2019	66,400,000		66,400,000
Expected annual amortization expense, 2020	66,200,000		66,200,000
Expected annual amortization expense, 2021	65,200,000		65,200,000
Expected annual amortization expense, 2022	61,700,000		61,700,000
Expected annual amortization expense, 2023	60,800,000		60,800,000
Expected annual amortization expense, thereafter	599,300,000		599,300,000
Metasurg | Orthopedics and Tissue Technologies
Goodwill [Line Items]
Impairment charge	4,900,000		4,900,000
Impairment charge, out of period adjustment included in original impairment	2,500,000		2,500,000
Metasurg | Orthopedics and Tissue Technologies | Completed technology
Goodwill [Line Items]
Remaining net book value	$ 2,300,000		$ 2,300,000
Tarsus | Orthopedics and Tissue Technologies
Goodwill [Line Items]
Impairment charge		$ 3,300,000