XML 123 R107.htm IDEA: XBRL DOCUMENT
v3.23.1

Related Party Transactions - Narrative (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Related Party Transaction [Line Items] |  |  |  |
Plus component of annual investment management fee |  | 0.25 |  |
Annual fee cap |  | 0.15 |  |
Privately-held Investments | [1] | $ 533.0 | $ 307.1 |
Other investments, at fair value (2) | [2] | 221.3 | 151.3 |
Asset Management Arrangement |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party fees |  |  | 5.8 | $ 5.3
Asset Management Arrangement | Investment Income |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party fees |  | 4.9 |  |
Management Consulting Agreement |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party fees |  |  | 5.0 | $ 5.0
Management Consulting Agreement | General, administrative and corporate expenses |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party fees |  | 5.0 |  |
Apollo originating partnership | Gain (Loss) on Investments |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party fees |  | 1.5 |  |
Beneficial owner |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Intercompany balance payable |  | 2.0 | 0.6 |
Apollo real estate fund | Fair Value, Recurring [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other investments, at fair value (2) |  | 25.3 |  |
Apollo originating partnership | Fair Value, Recurring [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Privately-held Investments |  | 44.8 |  |
Other investments, at fair value (2) |  | 12.7 |  |
Apollo originating partnership, class A notes | Privately-held investments |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Privately-held investment, losses incurred |  | (0.2) |  |
Apollo originating partnership, class A notes | Fair Value, Recurring [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Privately-held Investments |  | 30.0 |  |
Apollo originating partnership, class B notes | Privately-held investments |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Privately-held investment, losses incurred |  | (0.2) |  |
Apollo originating partnership, class B notes | Fair Value, Recurring [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Privately-held Investments |  | $ 14.8 |  |
Apollo, Class A & B Notes | Privately-held investments |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Privately-held investment, losses incurred |  |  | $ 0.0 |
Maximum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Percentage of consolidated group's net income due to Apollo Management |  | 1.00% |  |
Fees due to Apollo Management |  | $ 5.0 |  |
[1] | Privately-held investments includes related party investments totaling $44.8 million.
[2] | Other investments includes related party investments of $25.3 million in Apollo Real Estate Fund and $12.7 million in Apollo Origination Partnership. (3) Cash and cash equivalents includes restricted cash of $232.1 million (2021 — $364.9 million) which are held in trusts.

X
- Definition Privately-held investment, losses incurred + References No definition available. + Details
Name: | ahl_PrivatelyHeldInvestmentLossesIncurred
Namespace Prefix: | ahl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Privately-held Investments + References No definition available. + Details
Name: | ahl_PrivatelyheldInvestments
Namespace Prefix: | ahl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Related Party Transaction, Maximum Rate Increase + References No definition available. + Details
Name: | ahl_RelatedPartyTransactionMaximumRateIncrease
Namespace Prefix: | ahl_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Related Party Transaction, Rate of Interest + References No definition available. + Details
Name: | ahl_RelatedPartyTransactionRateofInterest
Namespace Prefix: | ahl_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + 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 210.5-02.19(a)) -URI https://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 850 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(k)(1)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_AccountsPayableRelatedPartiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amounts due from owners or owners with a beneficial interest of more than 10 percent of the voting interests or officers of the company, which are usually due within 1 year (or 1 business cycle). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_DueFromOfficersOrStockholdersCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(k)(1)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 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(19)(a)(5)) -URI https://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 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(12)(b)(3)) -URI https://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996 + Details
Name: | us-gaap_DueToAffiliateCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investments classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(12)) -URI https://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 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f,g)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
Name: | us-gaap_OtherInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=us-gaap_AssetManagementArrangementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_InvestmentIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=ahl_ManagementConsultingAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=ahl_ApolloOriginatingPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GainLossOnInvestmentsMember1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BeneficialOwnerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ahl_ApolloRealEstateFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ahl_ApolloOriginatingPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ahl_ApolloClassANotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ahl_ApolloClassBNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ahl_ClassABNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |