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v3.19.3

Nature of Business and Organization (Details) | Sep. 30, 2019
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |
APAM economic interest in Artisan Partners Holdings LP (as a percent) | 72.00%
Ownership interest | 100.00%

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- Definition Subsidiary, Ownership Percentage - Artisan Partners Limited Partnership + References No definition available. + Details
Name: | apam_SubsidiaryOwnershipPercentageArtisanPartnersLimitedPartnership
Namespace Prefix: | apam_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration