Adjustments To Additional Paid In Capital, Fair Value Adjustment, Redeemable Noncontrolling Interest

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Redeemable Noncontrolling Interest, Equity, Excess Over Carrying Amount

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Stockholders' Equity, Conversion, Threshold Volume Weighted Average Price Period

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Stockholders Equity, Number Of Days After The Redemption Notice Date For Redemption To Be Settled

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Stockholders' Equity, Redemption Ratio

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Number of warrants or rights outstanding.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of common units of ownership outstanding of a limited liability company (LLC).

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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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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Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Redeemable Noncontrolling Interest - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2023	Sep. 20, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Noncontrolling Interest [Line Items]
Redemption ratio				1
Number of days after redemption notice date that redemption must be settled				10 years
Redemption value of noncontrolling interest				$ 87,700
Excess redeemable noncontrolling interest over carrying amount				79,400
Fair value adjustment to redeemable noncontrolling interest		$ (160,733)		44,599
Additional Paid in Capital
Noncontrolling Interest [Line Items]
Fair value adjustment to redeemable noncontrolling interest		(17,601)		(19,015)
Retained Earnings (Deficit)
Noncontrolling Interest [Line Items]
Fair value adjustment to redeemable noncontrolling interest		$ (143,132)		$ 63,614
Class A Common Stock
Noncontrolling Interest [Line Items]
Common stock, shares outstanding (in shares)		9,517,816		30,192,847	9,517,816
Stockholders' equity, conversion, threshold volume weighted average price period				5 days
Legacy AON Stockholders \| AON LLC
Noncontrolling Interest [Line Items]
Common unit, units outstanding (in units)				17,868,095
Allocation of income to controlling and noncontrolling interests (in percent)	80.80%		100.00%	39.50%	100.00%	100.00%	100.00%
Common stock, shares outstanding (in shares)				14,867,850
Class of warrant outstanding (in warrants)				3,000,245