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DERIVATIVE INSTRUMENTS - Narrative (Details) € in Millions, SFr in Millions |  | 3 Months Ended | 6 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2022 CHF (SFr) | Jun. 30, 2021 USD ($) | May 26, 2022 USD ($) | May 26, 2022 CHF (SFr) | Dec. 31, 2021 USD ($) | Oct. 04, 2021 USD ($) | Sep. 30, 2021 EUR (€) | Dec. 31, 2020 USD ($) | Dec. 21, 2020 USD ($) | Dec. 21, 2020 CHF (SFr) | Oct. 02, 2017 USD ($) | Oct. 02, 2017 CHF (SFr)
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) recorded in AOCL, change in fair value | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) recorded in AOCL, change in fair value |  | $ 52,068,000 | $ (25,894,000) | $ 95,367,000 |  | $ 62,391,000 |  |  |  |  |  |  |  |  |  |
Total derivatives designated as hedges — Assets |  | 57,343,000 |  | 57,343,000 |  |  |  |  | $ 16,497,000 |  |  |  |  |  |  |
Foreign Exchange Forward | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount |  | 4,200,000 |  | 4,200,000 |  |  |  |  |  |  |  | $ 4,200,000 |  |  |  |
Gain (loss) reclassified into other income |  |  |  | (100,000) |  | (300,000) |  |  |  |  |  |  |  |  |  |
Total derivatives designated as hedges — Assets |  | 100,000 |  | 100,000 |  |  |  |  | $ 200,000 |  |  |  |  |  |  |
Cross-currency swap |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount |  | 6,400,000 | 7,300,000 | 6,400,000 |  | 7,300,000 |  |  |  |  |  |  | $ 471,600,000 | SFr 420.1 |  |
Gain (loss) recorded in AOCL, change in fair value |  | 21,100,000 | (11,000,000) | 21,500,000 |  | 29,200,000 |  |  |  |  |  |  |  |  |  |
Gain (loss) reclassified into other income |  | 2,000,000 | 1,300,000 | 3,800,000 |  | 2,500,000 |  |  |  |  |  |  |  |  |  |
Gain expected to be reclassified to earnings in the next twelve months |  | 3,600,000 |  | 3,600,000 |  |  |  |  |  |  |  |  |  |  |  |
Intercompany loan quarterly payments | SFr |  |  |  |  | SFr 5.8 |  |  |  |  |  |  |  |  |  |  |
Cross-currency swap | Cash Flow Hedges | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount |  |  |  |  |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |
Gain (loss) reclassified into other income |  | 19,300,000 | (12,900,000) | 25,800,000 |  | 30,000,000 |  |  |  |  |  |  |  |  |  |
Cross-currency swap | Net Investment Hedges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount | $ 52,000,000 |  |  |  |  |  |  |  |  |  | € 44.9 |  |  |  |  |
Cross-currency swap | Net Investment Hedges | Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settled notional amount |  |  |  | 250,000,000 | SFr 222.3 |  |  |  |  |  |  |  |  |  |  |
Gain (loss) recorded in AOCL |  |  |  | 4,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount |  |  |  |  |  |  | $ 300,000,000 | SFr 288.2 |  |  |  |  |  |  |  |
Gain (loss) recorded, net investment hedge, change in fair value |  | 10,800,000 | 100,000 | 12,100,000 |  | 13,700,000 |  |  |  |  |  |  |  |  |  |
Gain (loss) reclassified into other income |  | 1,000,000 | $ 1,700,000 | 2,300,000 |  | $ 3,400,000 |  |  |  |  |  |  |  |  |  |
Gain expected to be reclassified to earnings in the next twelve months |  | $ 8,500,000 |  | 8,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Cross-currency swap | Long | Codman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount | SFr |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | SFr 291.2
Cross-currency swap | Short | Codman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |
Currency Swap |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) recorded in AOCL, change in fair value |  |  |  | $ 1,600,000 |  |  |  |  |  |  |  |  |  |  |  |

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