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Noncontrolling Interest - Holdings - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Noncontrolling Interest [Line Items]    
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax $ 0 $ 0
Deferred Tax Assets | Additional Paid-in Capital    
Noncontrolling Interest [Line Items]    
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax $ (700) $ (800)