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Income Taxes (Narrative) (Details) € in Millions, RM in Millions, R$ in Millions, $ in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 29, 2024 USD ($) | Feb. 29, 2024 MYR (RM) | Jul. 31, 2023 USD ($) | Jul. 31, 2023 BRL (R$) | Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2025 AUD ($) | Dec. 31, 2024 USD ($) | Jun. 30, 2024 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2019 AUD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2019 AUD ($) | Dec. 31, 2024 AUD ($) | Feb. 29, 2024 EUR (€)
Effective Income Tax Rate Reconciliation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Tax Expense (Benefit) Excluding Discrete Items |  |  |  |  |  |  |  |  | $ 33.9 |  |  |  | $ 53.4 |  |  |
Income tax benefit |  |  |  |  | $ 31.5 |  |  |  | (30.0) |  |  | $ 225.0 | (17.1) |  |  |
Amount agreed with Australia tax authorities for tax assessment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.0 |
Deferred Foreign Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  |  |  | $ 168.8 |  |  |  |
Loss Contingency, Damages Sought, Value |  |  | $ 110.0 | R$ 601.0 |  |  |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate, Continuing Operations, Excluding Discrete Items |  |  |  |  | 15.20% |  |  |  |  |  |  | 15.20% |  |  |  |
Income Tax Expense (Benefit), Discrete Item |  |  |  |  |  |  |  |  | 63.9 |  |  |  | $ 70.5 |  |  |
Amount agreed with Australia tax authorities for tax assessment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.0 |
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities |  |  |  |  |  |  |  | $ 18.0 |  |  |  |  |  |  |  |
MALAYSIA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value | $ 28.0 | RM 117.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Australian Taxation Office |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for Other Taxes |  |  |  |  |  |  |  |  |  | $ 29.0 | $ 42.0 |  |  |  |  |
Amount agreed with Australia tax authorities for tax assessment |  |  |  |  |  |  |  | 2.0 |  |  |  |  |  |  |  |
Proceeds from Income Tax Refund, Foreign |  |  |  |  |  | $ 26.0 | $ 42.0 |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 101.0 |  |
Payments for Other Taxes |  |  |  |  |  |  |  |  |  | $ 29.0 | $ 42.0 |  |  |  |  |
Amount agreed with Australia tax authorities for tax assessment |  |  |  |  |  |  |  | $ 2.0 |  |  |  |  |  |  |  |
Proceeds from Income Tax Refund, Foreign |  |  |  |  |  | $ 26.0 | $ 42.0 |  |  |  |  |  |  |  |  |
Luxembourg subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for Uncertainty in Income Taxes, Noncurrent | $ 65.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 60.0
Income tax benefit |  |  |  |  |  |  |  |  | $ (65.0) |  |  |  |  |  |  |

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