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Stockholders' Equity - Distributions (Details) - Artisan Partners Holdings LP - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Distribution Made to Limited Partner [Line Items] |  |  |  |
Holdings Partnership Distributions to Limited Partners | $ 20,923 | $ 21,828 | $ 60,245 | $ 70,152
Holdings Partnership Distributions to APAM | 70,024 | 53,423 | 181,379 | 166,307
Partners' Capital Account, Distributions, Total | $ 90,947 | $ 75,251 | $ 241,624 | $ 236,459

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