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Noncontrolling Interest - Holdings - Result of Increased Equity Ownership Interest in Holdings (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership | $ 0 | $ 0 |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 82,729 | 77,442 | 48,646 |
Artisan Partners Holdings LP |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
APAM economic interest in Artisan Partners Holdings LP (as a percent) | 73.00% |  |  |
General Partnership Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Capital Units, Outstanding | 56,429,825 | 54,071,188 | 50,463,126 | 42,149,436
Shares repurchased and retired during the period (shares) | (17,289) | (67,255) | (3,628) |
Stock Issued During Period, Shares, Conversion of Units | (1,499,655) | (1,590,611) | (1,472,197) |
Limited Partnership Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Capital Units, Outstanding | 21,372,029 | 22,871,684 | 25,106,719 | 32,205,433
Shares repurchased and retired during the period (shares) | 0 | 0 | 0 |
Stock Issued During Period, Shares, Conversion of Units | (1,499,655) | (1,590,611) | (1,472,197) |
Capital Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Units of Partnership Interest, Amount | 77,801,854 | 76,942,872 | 75,569,845 | 74,354,869
Shares repurchased and retired during the period (shares) | (17,289) | (67,255) | (3,628) |
Stock Issued During Period, Shares, Conversion of Units | 0 | 0 | 0 |
Noncontrolling Interest, Increase (Decrease) Ownership Interest, Exchange of Units, Percent | 3.00% | 2.00% | 2.00% |
Capital Units | Artisan Partners Holdings LP |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
APAM economic interest in Artisan Partners Holdings LP (as a percent) | 73.00% | 70.00% | 67.00% | 57.00%
Unvested restricted share-based awards |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | (959,000) | (1,517,724) | (1,267,250) |
Unvested restricted share-based awards | General Partnership Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | (876,271) | (1,440,282) | (1,218,604) |
Unvested restricted share-based awards | Limited Partnership Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | 0 | 0 | 0 |
Unvested restricted share-based awards | Capital Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues | (876,271) | (1,440,282) | (1,218,604) |
Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent) | 0.00% | 0.00% | 1.00% |
Capital Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent) | 0.00% | 0.00% | 0.00% |
Follow On Offering | General Partnership Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues |  | (644,424) | (5,626,517) |
Follow On Offering | Limited Partnership Units |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Shares repurchased and retired during the period (shares) |  | (644,424) | (5,626,517) |
Capital Units | Follow On Offering |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues |  | 0 | 0 |
Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent) |  | 1.00% | 7.00% |

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