XML 115 R100.htm IDEA: XBRL DOCUMENT
v3.22.4

Variable Interest Entity and Noncontrolling Interests - Other variable interest entity disclosures (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | $ 47,990,507 | $ 45,100,945 | $ 43,282,297
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 3,904,776 | 3,248,206 |
Variable Interest Entity, Not Primary Beneficiary |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 3,594,884 | 4,336,596 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 1,776 | (4,434) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 26,800 | 42,202 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 28,576 | 37,768 |
Remaining Coverage, Amount |  | 410,593 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2017-1 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 36,679 | 108,368 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (6) | (159) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 14 | 424 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 8 | 265 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2018-1 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 89,698 | 181,136 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (153) | (528) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 508 | 1,268 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 355 | 740 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2018-3 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 199,237 | 302,563 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (250) | (1,018) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 771 | 2,496 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 521 | 1,478 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2019-1 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 107,880 | 181,324 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (48) | (380) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 593 | 5,807 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 545 | 5,427 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2019-2 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 325,462 | 398,316 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (206) | (515) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 4,356 | 3,998 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 4,150 | 3,483 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2019-3 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 222,977 | 409,859 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (104) | (584) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 1,229 | 3,190 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 1,125 | 2,606 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2019-4 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 266,124 | 411,954 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (142) | (462) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 3,640 | 4,759 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 3,498 | 4,297 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2020-2 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 105,110 | 217,766 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | (8) | (177) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 492 | 1,984 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 484 | 1,807 |
Remaining Coverage, Amount | [1] | 0 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2020-3 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 243,891 | 348,818 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 53 | (128) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 2,872 | 5,793 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 2,925 | 5,665 |
Remaining Coverage, Amount | [1] | 7,079 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2020-4 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 97,563 | 176,826 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 32 | (50) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 642 | 1,630 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 674 | 1,580 |
Remaining Coverage, Amount | [1] | 4,165 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2021-1 Ltd Member |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 467,469 | 568,986 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 239 | (303) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 2,743 | 3,283 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 2,982 | 2,980 |
Remaining Coverage, Amount | [1] | 35,798 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2021-2 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 458,362 | 522,807 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 581 | 281 |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 2,855 | 4,124 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 3,436 | 4,405 |
Remaining Coverage, Amount | [1] | 77,099 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2021-3 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 489,927 | 507,873 |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 217 | (411) |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 2,704 | 3,446 |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 2,921 | $ 3,035 |
Remaining Coverage, Amount | [1] | 127,032 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2022-01 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 283,500 |  |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 399 |  |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 1,765 |  |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 2,164 |  |
Remaining Coverage, Amount | [1] | 33,260 |  |
Variable Interest Entity, Not Primary Beneficiary | Bellemeade 2022-2 Ltd |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Total VIE Assets |  | 201,005 |  |
Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net |  | 1,172 |  |
Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet |  | 1,616 |  |
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount |  | 2,788 |  |
Remaining Coverage, Amount | [1] | $ 126,160 |  |
[1] | Coverage from a separate panel of reinsurers remaining at December 31, 2022

X
- Definition Remaining Coverage, Amount + References No definition available. + Details
Name: | acgl_RemainingCoverageAmount
Namespace Prefix: | acgl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Variable Interest Entity, Maximum Exposure to Loss, Off Balance Sheet + References No definition available. + Details
Name: | acgl_VariableInterestEntityMaximumExposureToLossOffBalanceSheet
Namespace Prefix: | acgl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Variable Interest Entity, Maximum Exposure to Loss, On Balance Sheet, Asset (Liability) Net + References No definition available. + Details
Name: | acgl_VariableInterestEntityMaximumExposureToLossOnBalanceSheetAssetLiabilityNet
Namespace Prefix: | acgl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 6: 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(a)(12)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 13: 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(g)(1)(ii)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI https://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(18)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123419778&loc=d3e5747-111685 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI https://asc.fasb.org/extlink&oid=123419778&loc=d3e5728-111685 + Details
Name: | us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20171LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_BellemeadeRe20181LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20183Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20191LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20192LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20193LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_BellemeadeRe20194LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20202LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20203LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20204LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20211LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20212LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20213LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade202201LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=acgl_Bellemeade20222LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |