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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Computation of basic and diluted net income (loss) per share

The computation of basic and diluted earnings per share for the years ended December 31, 2022, 2021 and 2020 were as follows:

			For the Years Ended December 31,
Basic and Diluted Earnings Per Share			2022						2021						2020
Numerator:
Net income attributable to APAM			$	206,755					$	336,516					$	212,617
Less: Allocation to participating securities			22,801						31,430						23,268
Net income available to common stockholders			$	183,954					$	305,086					$	189,349
Denominator:
Basic weighted average shares outstanding			62,475,960						59,866,790						55,633,529
Dilutive effect of nonparticipating equity awards			22,549						14,249						4,393
Diluted weighted average shares outstanding			62,498,509						59,881,039						55,637,922
Earnings per share - Basic			$	2.94					$	5.10					$	3.40
Earnings per share - Diluted			$	2.94					$	5.09					$	3.40

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table summarizes the weighted-average shares outstanding that are excluded from the calculation of diluted earnings per share because their effect would have been anti-dilutive:

			For the Years Ended December 31,
Anti-Dilutive Weighted Average Shares Outstanding			2022						2021						2020
Holdings limited partnership units			12,022,633						14,167,538						17,885,335
Unvested restricted share-based awards			5,601,756						5,410,221						5,313,466
Total			17,624,389						19,577,759						23,198,801

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

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Tabular disclosure of the effect of income (loss) on basic earnings per share.

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