DERIVATIVE INSTRUMENTS - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Oct. 02, 2020 USD ($)	Dec. 31, 2019 USD ($)	Oct. 02, 2017 CHF (SFr)	Oct. 02, 2017 USD ($)
Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) recorded in AOCL, change in fair value	$ (21,497,000)	$ 13,009,000	$ (63,194,000)	$ (12,865,000)
Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	1,175,000,000		1,175,000,000			$ 1,325,000,000
Cross-currency swap | Net Investment Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Gain reclassified into other income	2,200,000	2,500,000	6,600,000	7,200,000
Gain expected to be reclassified to earnings in the next twelve months	7,700,000		7,700,000
Gain (loss) recorded, net investment hedge, change in fair value	(11,300,000)	17,100,000	5,100,000	26,600,000
Cross-currency swap | Codman | Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) recorded in other income, net	(6,900,000)	5,700,000	(12,000,000.0)	3,900,000
Gain (loss) recorded in AOCL, change in fair value	(6,300,000)	9,700,000	2,700,000	15,400,000
Gain reclassified into other income	1,500,000	$ 1,800,000	4,500,000	$ 5,500,000
Gain expected to be reclassified to earnings in the next twelve months	$ 3,000,000.0		$ 3,000,000.0
Cross-currency swap | Codman | Cash Flow Hedges | Subsequent Event | Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount					$ 33,300,000
Cross-currency swap | Short | Codman
Derivative [Line Items]
Current notional amount								$ 300,000,000.0
Cross-currency swap | Long | Codman
Derivative [Line Items]
Current notional amount | SFr							SFr 291,200,000