Fair value of the assets less the liabilities of a derivative or group of derivatives.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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Fixed interest rate related to the interest rate derivative.

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Nominal or face amount used to calculate payment on derivative.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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DERIVATIVE INSTRUMENTS - Schedule of Cross Currency Swap Derivatives (Details)	Mar. 31, 2020 CHF (SFr)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 CHF (SFr)	Dec. 31, 2019 USD ($)	Oct. 02, 2017 CHF (SFr)	Oct. 02, 2017 USD ($)
Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Aggregate Notional Amount \| SFr					SFr 291,200,000
Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Aggregate Notional Amount						$ 300,000,000.0
Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		$ 1,325,000,000		$ 1,325,000,000
Fair Value Asset (Liability)		(95,752,000)		(45,145,000)
Cash Flow Hedges \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		3,874,000		(509,000)
Cash Flow Hedges \| Swap One \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		$ (74,000)		$ (101,000)
Cash Flow Hedges \| Swap One \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Fixed Rate	1.75%	1.75%	1.75%	1.75%
Aggregate Notional Amount \| SFr	SFr 32,355,000		SFr 32,355,000
Cash Flow Hedges \| Swap One \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Fixed Rate	4.38%	4.38%	4.38%	4.38%
Aggregate Notional Amount		$ 33,333,000		$ 33,333,000
Cash Flow Hedges \| Swap Two \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		$ 531,000		$ (119,000)
Cash Flow Hedges \| Swap Two \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Fixed Rate	1.85%	1.85%	1.85%	1.85%
Aggregate Notional Amount \| SFr	SFr 48,533,000		SFr 48,533,000
Cash Flow Hedges \| Swap Two \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Fixed Rate	4.46%	4.46%	4.46%	4.46%
Aggregate Notional Amount		$ 50,000,000		$ 50,000,000
Cash Flow Hedges \| Swap Three \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		$ 3,416,000		$ (289,000)
Cash Flow Hedges \| Swap Three \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Fixed Rate	1.95%	1.95%	1.95%	1.95%
Aggregate Notional Amount \| SFr	SFr 145,597,000		SFr 145,598,000
Cash Flow Hedges \| Swap Three \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Fixed Rate	4.52%	4.52%	4.52%	4.52%
Aggregate Notional Amount		$ 150,000,000		$ 150,000,000