Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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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.

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The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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Share-based Compensation Stock Incentive Plans - Share-based Compensation Expense and Valuation Information (Details) - USD ($) $ in Millions		1 Months Ended	2 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended
	Jul. 21, 2023	Jul. 21, 2023	Sep. 30, 2023	Sep. 30, 2022	Jul. 21, 2023	Sep. 30, 2023	Sep. 30, 2022
ABP Sub Inc. 2019 Incentive Award Plan
Share-based Compensation Expense
Share-based compensation expense	$ 1.0
Assumptions
Expected volatility, minimum							47.00%
Expected volatility, maximum						57.00%	61.00%
Risk-free interest rate, minimum						4.10%	1.87%
Risk-free interest rate, maximum						4.40%	3.92%
ABP Sub Inc. 2019 Incentive Award Plan \| Minimum
Assumptions
Expected life (in years)						3 years	5 years 9 months
ABP Sub Inc. 2019 Incentive Award Plan \| Maximum
Assumptions
Expected life (in years)						6 years 3 months
Selling, general and administrative expenses
Share-based Compensation Expense
Share-based compensation expense		$ 0.6		$ 1.0	$ 2.8		$ 3.7
Selling, general and administrative expenses \| Successor period, July 22, 2023, to September 30, 2023
Share-based Compensation Expense
Share-based compensation expense			$ 1.8
Selling, general and administrative expenses \| ABP Sub Inc. 2019 Incentive Award Plan \| Successor period, July 22, 2023, to September 30, 2023
Share-based Compensation Expense
Share-based compensation expense			0.2
Research and development expenses
Share-based Compensation Expense
Share-based compensation expense		$ 0.1		$ 0.1	$ 0.4		$ 0.6
Research and development expenses \| Successor period, July 22, 2023, to September 30, 2023
Share-based Compensation Expense
Share-based compensation expense			$ 0.4