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v3.19.3

Noncontrolling interest - Holdings Share Issuances & Cancellations (Details) | 9 Months Ended
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Sep. 30, 2019 shares
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Restricted share award net share settlement (in shares) | (82,729)
Ending balance | 72.00%
Class A Common Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Restricted share award net share settlement (in shares) | (82,729)
Holdings GP Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Beginning balance (in shares) | 54,071,188
Ending balance (in shares) | 56,261,026
Limited Partnership Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Beginning balance (in shares) | 22,871,684
Holdings common unit exchanges (in shares) | (1,330,432)
Restricted share award net share settlement (in shares) | 0
Forfeitures of Holdings GP Units from Employee Terminations (in shares) | 0
Ending balance (in shares) | 21,541,252
Capital Units |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Beginning balance (in shares) | 76,942,872
Beginning balance | 70.00%
Holdings common unit exchanges (in shares) | 0
Holdings of common unit exchanges, APAM ownership percentage | 1.00%
Change in APAM economic ownership Interest in Artisan Partners Holdings LP (as a percent) | 0.00%
Restricted share award net share settlement (in shares) | (82,729)
Forfeitures of Holdings GP Units from Employee Terminations (in shares) | (16,865)
Ending balance | 72.00%
Ending balance (in shares) | 77,802,278
Restricted Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 959,000
Restricted Stock | Class A Common Stock |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
Shares issued (in shares) | 959,000
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) | 959,000
Change in APAM economic ownership Interest in Artisan Partners Holdings LP (as a percent) | 1.00%
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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