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Noncontrolling interest - Holdings (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Noncontrolling Interest [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP	$ 0	$ 0	$ 0	$ 0
Net impact to financial condition			0	0
Additional paid-in capital
Noncontrolling Interest [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP	(412)	(740)	(1,256)	(2,308)
Non-controlling interests - Artisan Partners Holdings
Noncontrolling Interest [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP	419	742	1,277	2,458
Non-controlling interests - Artisan Partners Holdings | Deferred Tax Assets
Noncontrolling Interest [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP			800	2,000
Accumulated other comprehensive income (loss)
Noncontrolling Interest [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP	$ (7)	$ (2)	$ (21)	$ (150)

X

- Definition

Cumulative equity impact of changes in ownership of APAM's subsidiary, Artisan Partners Holdings LP as a result of the issuance and forfeiture of equity.

+ References

No definition available.

+ Details

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- Definition

Represents a (noncash) issuance of additional equity interests to the parent by a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The additional equity interest represented by this element increases the parent's controlling interest in the subsidiary.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

The increase (decrease) during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not arise in a deconsolidation of the subsidiary from the consolidated financial statements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 55
-Paragraph 4M
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591554-111686

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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