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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Section 50
-Paragraph 2
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-Publisher FASB
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Share-based Compensation - Restricted Stock Units Activity Under 2019 Incentive Award Plan (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	2 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended	12 Months Ended
	Jul. 21, 2023	Jul. 21, 2023	Sep. 30, 2023	Sep. 30, 2024	Jul. 21, 2023	Sep. 30, 2024	Dec. 31, 2023
Other than options, Weighted Average Exercise Price
Share-based compensation expense		$ 0.7	$ 2.2	$ 1.6	$ 3.2	$ 4.9
ABP Sub Inc. 2019 Incentive Award Plan
Other than options, Weighted Average Exercise Price
Share-based compensation expense	$ 1.0
Weighted-average remaining requisite service period for which unrecognized compensation expense						5 months	10 months
RSU \| ABP Sub Inc. 2019 Incentive Award Plan
Other than options, Number of Shares
Outstanding, beginning of period						1,012,994
Vested						(160,063)
Forfeited						(32,679)
Outstanding, ending of period				820,252		820,252	1,012,994
Other than options, Weighted Average Exercise Price
Outstanding, beginning of period						$ 10.84
Vested						10.84
Forfeited						10.84
Outstanding, ending of period				$ 10.84		$ 10.84	$ 10.84
Share-based compensation expense		$ 0.1	$ 0.4	$ 0.5	$ 0.5	$ 1.6
Unrecognized compensation expense related to other than options				7.4		$ 7.4
Weighted-average remaining requisite service period for which unrecognized compensation expense						24 months
RSU \| ABP Sub Inc. 2019 Incentive Award Plan \| Earnout Vesting
Other than options, Weighted Average Exercise Price
Unrecognized compensation expense related to other than options				4.1		$ 4.1
RSU \| ABP Sub Inc. 2019 Incentive Award Plan \| Non Earnout Vesting
Other than options, Weighted Average Exercise Price
Unrecognized compensation expense related to other than options				$ 3.3		$ 3.3