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v3.20.2

Noncontrolling interest - Holdings Share Issuances & Cancellations (Details) | 9 Months Ended
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Sep. 30, 2020 shares
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 0
Change in APAM economic ownership Interest in Artisan Partners Holdings LP (as a percent) | 2.00%
Delivery of Shares Underlying RSUs (in shares) | 24,233
Restricted share award net share settlement (in shares) | (126,971)
Common Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Forfeitures of Holdings GP Units from Employee Terminations (in shares) | 0
Artisan Partners Holdings LP |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Ending balance | 78.00%
Follow On Offering |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 0
Class A Common Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Delivery of Shares Underlying RSUs (in shares) | 24,233
Restricted share award net share settlement (in shares) | (126,971)
Ending balance (in shares) | 61,425,521
Class A Common Stock | Common Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Forfeitures of Holdings GP Units from Employee Terminations (in shares) | (2,420,124)
Class A Common Stock | Follow On Offering |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 1,802,326
Limited Partnership Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Beginning balance (in shares) | 21,372,029
Holdings common unit exchanges (in shares) | (2,420,124)
Delivery of Shares Underlying RSUs (in shares) | 0
Restricted share award net share settlement (in shares) | 0
Forfeitures of Holdings GP Units from Employee Terminations (in shares) | 0
Ending balance (in shares) | 17,149,579
Limited Partnership Units | Follow On Offering |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 1,802,326
Capital Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Beginning balance (in shares) | 77,801,854
Holdings common unit exchanges (in shares) | 0
Holdings of common unit exchanges, APAM ownership percentage | 3.00%
Change in APAM economic ownership Interest in Artisan Partners Holdings LP (as a percent) | 0.00%
Restricted share award net share settlement (in shares) | (126,971)
Forfeitures of Holdings GP Units from Employee Terminations (in shares) | (40,101)
Ending balance (in shares) | 78,575,100
Capital Units | Artisan Partners Holdings LP |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Beginning balance | 73.00%
Ending balance | 78.00%
Restricted Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 916,085
Restricted Stock | Class A Common Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 916,085
Restricted Stock | Limited Partnership Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 0
Restricted Stock | Capital Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 916,085
Change in APAM economic ownership Interest in Artisan Partners Holdings LP (as a percent) | 0.00%
Capital Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Change in APAM economic ownership Interest in Artisan Partners Holdings LP (as a percent) | 0.00%

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