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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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