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

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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.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Share-based Compensation - Stock Option Activity Under 2023 Incentive Award Plan (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Options, Weighted Average Exercise Price
Share-based compensation expense	$ 1.7	$ 1.1	$ 3.3	$ 2.5
AEON Biopharma Inc 2023 Incentive Award Plan \| Stock options
Options, Number of Shares
Outstanding, beginning of period			331,753
Options granted			698,360
Options forfeited			(88,229)
Outstanding, end of period	941,884		941,884		331,753
Options, Weighted Average Exercise Price
Outstanding, beginning of period			$ 5.47
Options granted			13.26
Outstanding, end of period	$ 10.75		10.75		$ 5.47
Weighted average fair value of options granted per share			$ 6.89		$ 3.18
Weighted average remaining contractual life of options exercisable			9 years 6 months		9 years 7 months 6 days
Share-based compensation expense	$ 0.4		$ 0.5
Unrecognized compensation expense related to non-vested stock options	$ 5.2		$ 5.2		$ 0.9
Weighted-average remaining requisite service period for which unrecognized compensation expense			38 months		35 months