Fair Value Measurements - Convertible Notes at Fair Value (Details) $ in Millions	1 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended
Jul. 21, 2023 USD ($)	Sep. 30, 2024 USD ($)	Jul. 21, 2023 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023
Fair Value Measurements
Increase decrease in fair value of convertible notes	$ 13.2	$ 1.9	$ 19.4	$ 0.2
Principal amount outstanding under the convertible notes		15.0		15.0	$ 0.0
Estimated fair value of convertible notes		$ 15.2		$ 15.2	$ 0.0
Convertible notes, measurement input, extensible enumeration	Discount rate	Discount rate	Discount rate	Discount rate		Discount rate
Minimum \| Discount rate
Fair Value Measurements
Convertible notes, measurement input	15	15	15	15		15
Maximum \| Discount rate
Fair Value Measurements
Convertible notes, measurement input	60	60	60	60		60

The amount of changes in fair value of convertible notes.

No definition available.

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- Definition

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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-Topic 210
-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
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- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

No definition available.

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- Definition

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- Definition

Indicates measurement input for debt instrument, including, but not limited to, convertible and non-convertible debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147482907/825-10-50-31

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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