v3.26.1
Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2026
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method
The computation of basic and diluted earnings per share for the three and six months ended June 30, 2026 and 2025 were as follows:
For the Three Months Ended June 30,
For the Six Months Ended June 30,
Basic and Diluted Earnings Per Share2026202520262025
Numerator:
Net income attributable to APAM$80,828 $67,555 $138,869 $128,694 
Less: Allocation to participating securities6,953 5,974 13,051 11,886 
Net income available to common stockholders$73,875 $61,581 $125,818 $116,808 
Denominator:
Basic weighted average shares outstanding66,355,850 65,645,108 66,241,557 65,509,947 
Dilutive effect of nonparticipating share-based awards— — — — 
Diluted weighted average shares outstanding66,355,850 65,645,108 66,241,557 65,509,947 
Earnings per share - Basic $1.11 $0.94 $1.90 $1.78 
Earnings per share - Diluted$1.11 $0.94 $1.90 $1.78 
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 Three Months Ended June 30,
For the Six Months Ended June 30,
Anti-Dilutive Weighted Average Shares Outstanding2026202520262025
Holdings limited partnership units10,064,323 10,235,519 10,098,500 10,254,947 
Unvested restricted share-based awards5,212,541 5,366,155 5,150,928 5,379,080 
Total15,276,864 15,601,674 15,249,428 15,634,027