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Income Taxes - Net Operating Losses Carryforwards (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 1,533.5	$ 1,487.8
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1,221.0	1,182.7
Foreign
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 344.4	$ 106.0

X

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-3

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+ References

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