XML 71 R61.htm IDEA: XBRL DOCUMENT v3.23.1
Earnings Per Share - Computation of basic and diluted net income per share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Earnings Per Share [Abstract]    
Net income attributable to APAM $ 50,753 $ 65,433
Less: Allocation to participating securities 4,952 9,431
Net income available to common stockholders $ 45,801 $ 56,002
Basic weighted average shares outstanding (in shares) 63,231,797 62,039,038
Dilutive effect of nonparticipating share-based awards (in shares) 15,366 31,322
Diluted weighted average shares outstanding (in shares) 63,247,163 62,070,360
Earnings per share - Basic (in dollars per share) $ 0.72 $ 0.90
Earnings per share - Diluted (in dollars per share) $ 0.72 $ 0.90