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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

X

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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- Definition

Amount recognized for uncertainty in income taxes classified as noncurrent.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Income Taxes [Line Items]

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