XML 84 R66.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Income Taxes and Related Payments - Components of deferred tax assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Amortizable basis | $ 459,893 | $ 446,954 | $ 408,140
Follow-On Offering | 44,209 | 64,087 | 30,967
Deferred Tax Assets, Exchanges | 36,069 | 48,474 |
Amortization | (39,483) | (34,686) |
Other Tax Expense (Benefit) | (9) | 3,602 |
Amounts payable under tax receivable agreements | 425,427 | 412,468 | 375,324
Establishment of Amounts Payable Under Tax Receivable Agreements | 30,659 | 41,203 |
Tax Receivable Agreement Payments | 31,250 | 26,943 | 24,998
Net (Gain) Loss On The Tax Receivable Agreements Other | (358) | 4,673 |
Interest Paid, Including Capitalized Interest, Operating and Investing Activities | 42 | 60 |
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability |  | 3,700 |
Deferred tax assets: |  |  |
Amortizable basis | 459,893 | 446,954 | $ 408,140
Other | 38,009 | 35,107 |
Total deferred tax assets | 497,902 | 482,061 |
Less: valuation allowance | 0 | 0 |
Net deferred tax assets | 497,902 | 482,061 |
Follow On Offering |  |  |
Follow-On Offering | 16,362 | 21,424 |
Establishment of Amounts Payable Under Tax Receivable Agreements | $ 13,908 | $ 18,211 |

X
- Definition Amortization of deferred tax asset related to tax receivable agreements. + References No definition available. + Details
Name: | apam_AmortizationofTRADTA
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amounts payable under tax receivable agreement. + References No definition available. + Details
Name: | apam_AmountsPayableUnderTaxReceivableAgreement
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Tax Assets, Exchanges + References No definition available. + Details
Name: | apam_DeferredTaxAssetsExchanges
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deferred tax assets recorded as a result of the step-up of tax basis from the H&F Corp Merger and the purchase of Class A common units by APAM. + References No definition available. + Details
Name: | apam_DeferredTaxAssetsStepUpOfTaxBasis
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net (Gain) Loss On The Tax Receivable Agreements Other + References No definition available. + Details
Name: | apam_NetGainLossOnTheTaxReceivableAgreementsOther
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Initial establishment of the estimated liability associated with the tax benefits expected to be realized as a result of the tax receivable agreements. + References No definition available. + Details
Name: | apam_NonCashTransactionInitialEstablishmentOfAmountsPayableUnderTaxReceivableAgreements
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Non cash Transaction Initial Establishment of Amounts Payable Under Tax Receivable Agreements, Excluding Impact of Change in Ownership + References No definition available. + Details
Name: | apam_NoncashTransactionInitialEstablishmentofAmountsPayableUnderTaxReceivableAgreementsExcludingImpactofChangeinOwnership
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Tax Receivable Agreement Payments + References No definition available. + Details
Name: | apam_TaxReceivableAgreementPayments
Namespace Prefix: | apam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319 + Details
Name: | us-gaap_DeferredTaxAssetsOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
Name: | us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4297-108586 + Details
Name: | us-gaap_InterestPaid
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of other income tax expense (benefit). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319 + Details
Name: | us-gaap_OtherTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=apam_FollowOnOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |