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Noncontrolling Interest - Holdings - Impact of the Reallocation of Equity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax	$ 0	$ 0	$ 0
Cumulative impact of changes in ownership	0	0
Additional paid-in capital
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax	(2,544)	(3,533)	(4,878)
Noncontrolling interests - Artisan Partners Holdings
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax	2,733	3,584	4,923
Accumulated other comprehensive income (loss)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax	$ (189)	$ (51)	$ (45)

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.

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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
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4M
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591554-111686

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- Definition

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.

+ References

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