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Income Taxes - Textual (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Deferred tax assets, operating loss carryforwards, domestic | $ 1,700.0 |  |
Tax credit carryforward, amount | 732.5 |  |
Deferred tax assets, operating loss carryforwards, domestic, net | 361.5 |  |
Deferred tax assets, tax credit carryforwards, general business | 139.1 |  |
Deferred tax assets, operating loss carryforwards, foreign, net | 125.4 |  |
Deferred tax assets, operating loss carryforwards, state and local | 87.8 |  |
Deferred tax assets, operating loss carryforwards, foreign | 17.8 |  |
Valuation allowance | (1,420.9) | $ (1,473.5) |
Other noncurrent liabilities | 0.0 | 1.3 |
Net unrecognized tax benefits | 9.2 | 8.7 |
Unrecognized tax benefits, gross interest and penalties (reversal) |  | 0.2 | $ 0.2
Unrecognized tax benefits, accrued gross interest and penalties | $ 0.0 | 6.1 | 5.9
Book income tax, minimum percent | 15.00% |  |
Global intangible low-taxed income | $ 0.0 | $ 0.0 | $ 197.2
Decrease in Unrecognized Tax Benefits is Reasonably Possible | 0.8 |  |
Unrecognized Tax Benefits, Increase (Decrease) to Income Tax Penalties and Interest Expense | 6.2 |  |
Unrecognized Tax Benefits, Increase Resulting from Current and Prior Period Tax Positions | $ 0.5 |  |
Pillar Two effective tax rate | 15.00% |  |
U.S. — federal |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Valuation allowance | $ (1,000.0) |  |
Non-U.S. |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Valuation allowance | $ (400.0) |  |

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