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Stockholders' Equity - Distributions (Details) - Artisan Partners Holdings LP - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Distribution Made to Limited Partner [Line Items] |  |
Holdings Partnership Distributions to Limited Partners | $ 11,873 | $ 17,076
Holdings Partnership Distributions to APAM | 48,546 | 45,104
Partners' Capital Account, Distributions, Total | $ 60,419 | $ 62,180

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