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Statutory Capital and Surplus (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Statutory Accounting Practices [Line Items] |  |  |  |  |
Assets held-in-trust |  | $ 856,900,000 |  | $ 856,900,000 |
HG Global/BAM | HG Global |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Statutory capital and surplus | $ 784,200,000 |  | $ 784,200,000 |  |
Minimum regulatory capital requirement | 1 |  | 1 |  |
Cash and investments outside of collateral trusts | 3,000,000 |  | 3,000,000 |  |
Accrued interest held in supplemental trust | 105,800,000 |  | 105,800,000 |  |
HG Global/BAM | BAM |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Statutory capital and surplus | 269,300,000 |  | 269,300,000 |  |
Minimum regulatory capital requirement | 66,000,000 |  | 66,000,000 |  |
Statutory net loss |  |  | (51,100,000) | $ (55,000,000) | $ (49,300,000)
Ark/WM Outrigger | WM Outrigger Re |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Statutory capital and surplus | 273,000,000 |  | 273,000,000 |  |
Minimum regulatory capital requirement | $ 1 |  | $ 1 |  |
Ark/WM Outrigger | Ark |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Percent of statutory capital balance | 15.00% |  | 15.00% |  |
Percent of statutory capital and surplus balance | 25.00% |  | 25.00% |  |
Percent of statutory capital balance | $ 271,900,000 |  | $ 271,900,000 |  |
Statutory surplus balance | 1,087,500,000 |  | 1,087,500,000 |  |
Payment of dividend to immediate parent |  |  | 15,000,000 |  |
Ark |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Statutory capital and surplus | 1,087,500,000 |  | 1,087,500,000 |  |
Minimum regulatory capital requirement | 508,400,000 |  | 508,400,000 |  |
Funds provided | 345,200,000 |  | 345,200,000 |  |
HG Re |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Assets held-in-trust | 948,500,000 |  | $ 948,500,000 |  |
Surplus Notes | BAM Surplus Notes |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |
Cash repayments on notes | 27,400,000 | 36,000,000 |  |  |
Repayment of principal | 17,800,000 | 24,600,000 |  |  |
Accrued interest payment held in trust | 2,000,000 | 1,000,000 |  |  |
Accrued interest payment held outside of trust | $ 7,600,000 | $ 10,400,000 |  |  |

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- Definition The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479989/944-505-50-1 + Details
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