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Noncontrolling interest - Holdings (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax | $ 0 | $ 0 | $ 0 | $ 0
Net impact to financial condition |  |  | 0 | 0
Additional paid-in capital |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax | (627) | (667) | (2,455) | (3,758)
Non-controlling interests - Artisan Partners Holdings |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax | 632 | 669 | 2,501 | 3,802
Accumulated other comprehensive income (loss) |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax | $ (5) | $ (2) | $ (46) | $ (44)
Common Stock |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Repurchased and Retired During Period, Shares |  |  | 0 |
Holdings GP Units | Common Stock |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Repurchased and Retired During Period, Shares |  |  | 1,330,432 |

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