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Financial Instruments and Fair Value Measurements - Summary of Derivative Financial Instruments (Details) £ in Millions, $ in Millions | Jun. 30, 2022 USD ($) derivative Rate | Dec. 31, 2021 USD ($) | Feb. 29, 2020 derivative | May 31, 2019 GBP (£) derivative | May 31, 2019 USD ($) derivative
--- | --- | --- | --- | --- | ---
Derivative [Line Items] |  |  |  |  |
Notional Amount | $ 1,760.7 | $ 2,731.9 |  |  |
Fair Value - asset (liability) | 105.1 | (41.1) |  |  |
Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional Amount | 927.5 | 1,092.4 |  |  |
Fair Value - asset (liability) | $ 68.2 | (26.4) |  |  |
Interest rate swap | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 1 |  |  |  |
Interest rate swap | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 1 |  |  |  |
Notional Amount | $ 250.0 | 250.0 |  |  |
Weighted Average Strike Rate | 2.88% |  |  |  |
Fair Value - asset (liability) | $ 0.4 | (11.9) |  |  |
Cross-currency swaps | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative |  |  |  | 4 | 4
Notional Amount |  |  |  | £ 130 | $ 166.0
Cross-currency swaps | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 0 |  |  |  |
Notional Amount | $ 0.0 | 166.3 |  |  |
Fair Value - asset (liability) | $ 0.0 | (13.8) |  |  |
GBP cross-currency swaps | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 4 |  |  |  |
Notional Amount | $ 166.3 |  |  |  |
Foreign currency forwards | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 36 |  |  |  |
Notional Amount | $ 177.5 | 176.1 |  |  |
Fair Value - asset (liability) | $ 20.4 | 7.6 |  |  |
Weighted average forward exchange rate | Rate | 140.00% |  |  |  |
Forward-starting swaps | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 6 |  |  |  |
Forward-starting swap, derivative | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 4 |  |  |  |
Notional Amount | $ 300.0 | 300.0 |  |  |
Weighted Average Strike Rate | 1.86% |  |  |  |
Fair Value - asset (liability) | $ 31.2 | (3.2) |  |  |
Forward-starting swaps, hybrid debt | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 2 |  |  |  |
Notional Amount | $ 200.0 | 200.0 |  |  |
Weighted Average Strike Rate | 1.93% |  |  |  |
Fair Value - asset (liability) | $ 16.2 | (5.1) |  |  |
Currency exchange swaps | Not designated as hedging instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 5 |  |  |  |
Notional Amount | $ 833.2 | 1,639.5 |  |  |
Fair Value - asset (liability) | $ 36.9 | $ (14.7) |  |  |
GBP currency exchange swap | Not designated as hedging instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 3 |  |  |  |
Notional Amount | $ 564.9 |  |  |  |
Weighted average forward exchange rate | Rate | 126.00% |  |  |  |
EUR currency exchange swap | Not designated as hedging instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative | 2 |  |  |  |
Notional Amount | $ 268.3 |  |  |  |
Weighted average forward exchange rate | Rate | 111.00% |  |  |  |
Treasury rate locks | Designated as hedging instrument | Cash flow hedge |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of Instruments | derivative |  |  | 5 |  |

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