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Summary of Significant Accounting Policies Other Information (Details)	Sep. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Variable Interest Entity Consolidation Threshold	10.00%
Artisan Global Funds
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of Consolidated Variable Interest Entities	3
Artisan Private Funds
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of Consolidated Variable Interest Entities	1

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