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DERIVATIVE INSTRUMENTS - Schedule of Net Investment Hedges Derivatives (Details) € in Thousands, SFr in Thousands | Mar. 31, 2022 USD ($) | Mar. 31, 2022 CHF (SFr) | Mar. 31, 2022 EUR (€) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2021 EUR (€) | Jun. 30, 2021 USD ($) | Dec. 21, 2020 USD ($) | Dec. 21, 2020 CHF (SFr)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Cross-currency swap |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Aggregate Notional Amount |  |  |  |  |  |  | $ 7,300,000 | $ 471,600,000 | SFr 420,100
Net Investment Hedges | Cross-currency swap |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Aggregate Notional Amount |  |  |  |  | $ 52,000,000 | € 44,900 |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross-currency swap |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fair Value Asset (Liability) | $ 3,771,000 |  |  | $ 3,858,000 |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap One |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fair Value Asset (Liability) | $ 3,035,000 |  |  | 2,503,000 |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap One | Long |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fixed Rate | 0.00% | 0.00% | 0.00% |  |  |  |  |  |
Aggregate Notional Amount | € |  |  | € 51,760 |  |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap One | Short |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fixed Rate | 2.57% | 2.57% | 2.57% |  |  |  |  |  |
Aggregate Notional Amount | $ 60,000,000 |  |  |  |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap Two |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fair Value Asset (Liability) | $ 2,452,000 |  |  | 2,147,000 |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap Two | Long |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fixed Rate | 0.00% | 0.00% | 0.00% |  |  |  |  |  |
Aggregate Notional Amount | € |  |  | € 38,820 |  |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap Two | Short |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fixed Rate | 2.19% | 2.19% | 2.19% |  |  |  |  |  |
Aggregate Notional Amount | $ 45,000,000 |  |  |  |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap Three |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fair Value Asset (Liability) | $ (1,716,000) |  |  | $ (792,000) |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap Three | Long |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fixed Rate | 0.00% | 0.00% | 0.00% |  |  |  |  |  |
Aggregate Notional Amount | SFr |  | SFr 222,300 |  |  |  |  |  |  |
Designated as Hedging Instrument | Net Investment Hedges | Cross Currency Interest Rate Swap Three | Short |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Fixed Rate | 1.10% | 1.10% | 1.10% |  |  |  |  |  |
Aggregate Notional Amount | $ 250,000,000 |  |  |  |  |  |  |  |

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