Summary of Significant Accounting Policies Income Tax (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 867.4	$ 714.7
Foreign Tax Authority [Member]
Valuation Allowance [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 359.2

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant