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Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) vote $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 shares
Class of Stock [Line Items]
Outstanding	78,572,110	77,801,854	76,942,872	75,569,845
Common Class A, dividends paid (in dollars per share) | $ / shares	$ 3.39	$ 3.39	$ 3.19
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	304,570	297,891	246,581
Artisan Partners Holdings LP
Class of Stock [Line Items]
Holdings Partnership Distributions to Limited Partners | $	$ 85,805	$ 94,842	$ 103,434
General Partners' Capital Account, Period Distribution Amount | $	270,044	226,245	217,396
Total Holdings Partnership Distributions | $	$ 355,849	$ 321,087	$ 320,830
Quarterly cash dividend
Class of Stock [Line Items]
Common Class A, dividends paid (in dollars per share) | $ / shares	$ 2.79	$ 2.36	$ 2.40
Special annual dividend
Class of Stock [Line Items]
Common Class A, dividends paid (in dollars per share) | $ / shares	$ 0.60	$ 1.03	$ 0.79
Class A Common Stock
Class of Stock [Line Items]
Authorized	500,000,000
Outstanding	63,131,007	56,429,825	54,071,188	50,463,126
Common stock votes per share | vote	1
Class B Common Stock
Class of Stock [Line Items]
Authorized	200,000,000
Outstanding	4,457,958	7,803,364	8,645,249	11,922,192
Common stock votes per share | vote	1
Class C Common Stock
Class of Stock [Line Items]
Authorized	400,000,000
Outstanding	10,983,145	13,568,665	14,226,435	13,184,527
Common stock votes per share | vote	1

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