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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Taxes [Line Items] |  |  |
Federal statutory rate | 21.00% | 21.00% | 21.00%
Liability for Uncertain Tax Positions, Noncurrent | $ 14.8 |  |
fair value of intellectual property |  | $ 1,200.0 |
Deferred Tax Asset Intellectual property | 147.0 | 165.5 |
Deferred Tax Asset Research and Development Costs | 12.0 | $ 0.0 |
State [Member] |  |  |
Income Taxes [Line Items] |  |  |
Net operating loss carryforwards | $ 55.9 |  |
Foreign [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax credit carryforward expiration | 2028 |  |
Federal And State [Member] |  |  |
Income Taxes [Line Items] |  |  |
Operating Loss Carryforwards, Date | 2023 through 2034 |  |

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