XML 119 R58.htm IDEA: XBRL DOCUMENT v3.25.0.1

Noncontrolling Interest - Holdings - Result of Increased Equity Ownership Interest in Holdings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Noncontrolling Interest [Line Items]
Cumulative impact of changes in ownership	$ 0	$ 0
Stock Issued During Period, Shares, New Issues	(28,795)	(100,043)	(1,060)
Artisan Partners Holdings LP
Noncontrolling Interest [Line Items]
APAM economic interest in Artisan Partners Holdings LP (as a percent)	87.00%
Limited Partnership Units
Noncontrolling Interest [Line Items]
Capital Units, Outstanding	10,287,019	11,460,686	11,624,031	12,335,197
Shares repurchased and retired during the period (shares)	0	0	0
Stock Issued During Period, Shares, Conversion of Units	(1,173,667)	(163,345)	(711,166)
Capital Units
Noncontrolling Interest [Line Items]
Units of Partnership Interest, Amount	80,361,139	80,014,764	79,606,056	79,035,069
Shares repurchased and retired during the period (shares)	(36,022)	(19,750)	(18,671)
Stock Issued During Period, Shares, Conversion of Units	0	0	0
Noncontrolling Interest, Increase (Decrease) Ownership Interest, Exchange of Units, Percent	1.00%	0.00%	1.00%
Capital Units | Artisan Partners Holdings LP
Noncontrolling Interest [Line Items]
APAM economic interest in Artisan Partners Holdings LP (as a percent)	87.00%	86.00%	85.00%	84.00%
Class A Common Stock
Noncontrolling Interest [Line Items]
Capital Units, Outstanding	70,074,120	68,554,078	67,982,025	66,699,872
Shares repurchased and retired during the period (shares)	(36,022)	(19,750)	(18,671)
Stock Issued During Period, Shares, Conversion of Units	(1,173,667)	(163,345)	(711,166)
Shares withheld for withholding obligation	161,650	187,287	198,774
Unvested restricted share-based awards
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	(502,774)	(515,702)	(787,372)
Shares withheld for withholding obligation	149,172	187,287	198,774
Unvested restricted share-based awards | General Partnership Units
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	(353,602)	(328,415)	(588,598)
Unvested restricted share-based awards | Limited Partnership Units
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	0	0	0
Unvested restricted share-based awards | Capital Units
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	(353,602)	(328,415)	(588,598)
Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent)	0.00%	1.00%	0.00%
Unvested restricted share-based awards | Class A Common Stock
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	(502,774)	(515,702)	(787,372)
Shares withheld for withholding obligation	149,172
Restricted Stock Units (RSUs) | Limited Partnership Units
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	0	0	0
Restricted Stock Units (RSUs) | Class A Common Stock
Noncontrolling Interest [Line Items]
Stock Issued During Period, Shares, New Issues	(28,795)	(100,043)	(1,060)
Capital Units
Noncontrolling Interest [Line Items]
Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent)	0.00%	0.00%	0.00%
Capital Units | Unvested restricted share-based awards
Noncontrolling Interest [Line Items]
Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent)	0.00%	0.00%	0.00%

X

- Definition

Change in APAM Economic Ownership Interest in Artisan Partners Holdings LP (as a percent)

+ References

No definition available.

+ Details

Name:	apam_ChangeinAPAMEconomicOwnershipInterestinArtisanPartnersHoldingsLPasapercent
Namespace Prefix:	apam_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

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

Name:	apam_CumulativeImpactofChangesinOwnership
Namespace Prefix:	apam_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Noncontrolling Interest, Increase (Decrease) Ownership Interest, Exchange of Units, Percent

+ References

No definition available.

+ Details

Name:	apam_NoncontrollingInterestIncreaseDecreaseOwnershipInterestExchangeofUnitsPercent
Namespace Prefix:	apam_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of capital units or capital shares outstanding. This element is relevant to issuers of face-amount certificates and registered investment companies.

+ References

No definition available.

+ Details

Name:	us-gaap_CapitalUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- 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

No definition available.

+ Details

Name:	us-gaap_MinorityInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478448/946-505-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-09(4)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-03(i)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of shares that have been repurchased and retired during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of units or equivalent units outstanding for all classes.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

+ Details

Name:	us-gaap_UnitsOfPartnershipInterestAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	srt_OwnershipAxis=apam_ArtisanPartnersHoldingsLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=apam_LimitedPartnershipUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CapitalUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=apam_GeneralPartnershipUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	apam_EmployeePartnerTerminationsAxis=us-gaap_CapitalUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_CapitalUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: