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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Taxes [Line Items] |  |  |
Federal statutory rate | 21.00% | 21.00% | 21.00%
fair value of intellectual property |  | $ 1,800.0 |
Liability for Uncertain Tax Positions, Noncurrent | $ 4.3 |  |
Deferred Tax Asset, Valuation Allowance, Change in Tax Systems |  | 64.7 |
Deferred tax asset related to Non-US intellectual property | 0.0 | $ 118.0 | $ 0.0
State [Member] |  |  |
Income Taxes [Line Items] |  |  |
Net operating loss carryforwards | $ 32.9 |  |
Foreign [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforward expiration | 2028 and 2034 |  |
Federal And State [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating Loss Carryforwards, Date | 2025 through 2034 |  |

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