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DERIVATIVE INSTRUMENTS - Narrative (Details)	3 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2021 CHF (SFr)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 21, 2020 USD ($)	Dec. 21, 2020 CHF (SFr)	Oct. 02, 2017 USD ($)	Oct. 02, 2017 CHF (SFr)
Designated as Hedging Instrument
Derivative [Line Items]
Total derivatives designated as hedges — Assets	$ 41,433,000			$ 12,920,000
Gain (loss) recorded in AOCL, change in fair value	88,285,000		$ (26,847,000)
Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount				1,875,000,000
Foreign Exchange Forward | Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount				$ 9,700,000
Loss on foreign currency derivatives	200,000
Total derivatives designated as hedges — Assets	200,000
Cross-currency swap
Derivative [Line Items]
Current notional amount					$ 471,600,000	SFr 420,100,000
Intercompany loan quarterly payments | SFr		SFr 5,800,000
Cross-currency swap | Net Investment Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) reclassified into other income	1,700,000		2,200,000
Gain expected to be reclassified to earnings in the next twelve months	5,200,000
Gain (loss) recorded, net investment hedge, change in fair value	11,900,000		16,700,000
Cross-currency swap | Codman | Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) reclassified into other income	1,300,000		1,500,000
Gain (loss) recorded in other income, net	42,900,000		(1,700,000)
Gain (loss) recorded in AOCL, change in fair value	40,200,000		$ 5,900,000
Gain expected to be reclassified to earnings in the next twelve months	$ 9,100,000
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

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Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated as hedging instruments.

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