XML 56 R45.htm IDEA: XBRL DOCUMENT
v3.20.2

Noncontrolling interest - Holdings (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax |  | $ 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, net of tax | $ (2,089) | (1,737) | (1,568) | (1,828)
Non-controlling interests - Artisan Partners Holdings |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax | 2,118 | 1,753 | 1,717 | 1,869
Non-controlling interests - Artisan Partners Holdings | Deferred Tax Assets [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Net impact to financial condition |  |  | (2,000) | (600)
Accumulated other comprehensive income (loss) |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax | $ (29) | $ (16) | $ (149) | $ (41)
Common Stock |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Stock Repurchased and Retired During Period, Shares |  |  | 0 |

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 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) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesAdditionalInterestIssuedToParent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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 Number of shares that have been repurchased and retired during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=apam_DeferredTaxAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | apam_HoldingsCommonUnitExchangesAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |