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Financial Guarantee Insurance Contracts - Additional Information (Detail) € in Millions, £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 GBP (£)	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 GBP (£)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)
Insurance [Line Items]
Ceded Loss And Loss Expenses Paid Not Yet Recovered		$ 0	$ 0
Estimated Future Premium Payments Weighted Average Discounted Rate	3.20%	3.00%		3.20%	3.20%	3.00%	3.00%
Amount Of Insured Par Outstanding Ceded To Reinsurer	$ 2,766
Ceded Principal Outstanding Major Reinsurer Percentage	10.60%
Reinsurance Payable	$ 90	$ 39
Weighted average period of future premiums	7 years 8 months 12 days	8 years
Uncollectable premium receivables	$ 4	$ 5
Accelerated premium revenue for retired obligations	0	8	1
Reinsurance recoveries of losses included in losses and loss expenses	(110)	(41)	5
Losses and loss expense reserves ceded to reinsurers		33
Subrogation recoveries, net of reinsurance	0	(140)
Amortization of intangible assets	29	47	55
Intangible assets, less accumulated amortization	307	326
Financial Guarantee Outstanding Principal Ceded To Third Parties	6,464
Premiums Receivable, Gross	290	269	323							$ 370
Allowance for Doubtful Accounts, Premiums and Other Receivables	4	5	9							$ 17
Premium Receivable, Credit Loss Expense (Reversal)	(1)	(4)	(6)
Premium Receivable, Allowance for Credit Loss, Writeoff	0	0	(2)
Reinsurance Recoverable, Allowance for Credit Loss	0	0
Net Incurred RMBS Subrogation Recoveries	0	(123)	20
Reinsurance Recoverables, Gross	195
Net unsecured reinsurance recoverable	128
Reinsurance Recoverable, Gross, All Other	50
Unsecured Reinsurance Recoverable, All Other	21
Uncollateralized Credit Exposure Supoorted by Unlimited Uncapped Indemnity	44	45
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years	(194)	(1,867)	59
Settled Litigation
Insurance [Line Items]
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years		1,687
Financial Guarantee
Insurance [Line Items]
Ceded Loss And Loss Expenses Paid Not Yet Recovered	8
Losses and loss expense reserves ceded to reinsurers	30
Financial Guarantee | Assured Guaranty Re Ltd [Member]
Insurance [Line Items]
Reinsurance Recoverables, Gross	25
Net unsecured reinsurance recoverable	0
Property and Casualty, Commercial Insurance | QBE Insurance Corporation
Insurance [Line Items]
Reinsurance Recoverables, Gross	38
Net unsecured reinsurance recoverable	38
Property and Casualty, Commercial Insurance | General Reinsurance Company
Insurance [Line Items]
Reinsurance Recoverables, Gross	81
Net unsecured reinsurance recoverable	69
Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	210	217
IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	16	10
II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	5	5
III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	7	16
IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	$ 11	$ 11
Maximum [Member] | Furniture and Fixtures [Member]
Insurance [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years			5 years	5 years
Loss Reserves [Member]
Insurance [Line Items]
Weighted average risk-free rate used to discount loss reserves	3.90%	3.90%
United Kingdom, Pounds
Insurance [Line Items]
Financial Guarantee Insurance Contracts, Premium Receivable	$ 72	$ 71	108	£ 57		£ 59		£ 80
Euro Member Countries, Euro
Insurance [Line Items]
Financial Guarantee Insurance Contracts, Premium Receivable	13	14	$ 16		€ 12		€ 13		€ 14
Public Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	140	150
Public Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	133	142
Public Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	3	3
Public Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	5	5
Public Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Public Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Structured Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	22	24
Structured Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	4	5
Structured Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	1
Structured Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Structured Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	7	7
Structured Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	11	11
International Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	85	85
International Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	72	70
International Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	13	7
International Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
International Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	9
International Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Housing Revenue [Member] | Public Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	139	148
Housing Revenue [Member] | Public Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	131	140
Housing Revenue [Member] | Public Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	3	3
Housing Revenue [Member] | Public Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	5	5
Housing Revenue [Member] | Public Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Housing Revenue [Member] | Public Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Public Finance Sectors [Member] | Public Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	1	2
Other Public Finance Sectors [Member] | Public Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	1	2
Other Public Finance Sectors [Member] | Public Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Public Finance Sectors [Member] | Public Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Public Finance Sectors [Member] | Public Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Public Finance Sectors [Member] | Public Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Student Loan [Member] | Structured Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	7	8
Student Loan [Member] | Structured Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	1
Student Loan [Member] | Structured Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	1
Student Loan [Member] | Structured Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Student Loan [Member] | Structured Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	7	7
Student Loan [Member] | Structured Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Structured Finance [Member] | Structured Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	4	4
Other Structured Finance [Member] | Structured Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	4	4
Other Structured Finance [Member] | Structured Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Structured Finance [Member] | Structured Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Structured Finance [Member] | Structured Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other Structured Finance [Member] | Structured Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Sovereign/Sub-sovereign [Member] | International Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	64	64
Sovereign/Sub-sovereign [Member] | International Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	51	49
Sovereign/Sub-sovereign [Member] | International Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	13	7
Sovereign/Sub-sovereign [Member] | International Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Sovereign/Sub-sovereign [Member] | International Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	9
Sovereign/Sub-sovereign [Member] | International Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Investor-owned and Public Utilities [Member] | International Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	18	18
Investor-owned and Public Utilities [Member] | International Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	18	18
Investor-owned and Public Utilities [Member] | International Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Investor-owned and Public Utilities [Member] | International Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Investor-owned and Public Utilities [Member] | International Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Investor-owned and Public Utilities [Member] | International Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other International [Member] | International Finance [Member]
Insurance [Line Items]
Premiums Receivable, Gross	3	2
Other International [Member] | International Finance [Member] | Surveillance Category One [Member]
Insurance [Line Items]
Premiums Receivable, Gross	3	2
Other International [Member] | International Finance [Member] | IA [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other International [Member] | International Finance [Member] | II [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other International [Member] | International Finance [Member] | III [Member]
Insurance [Line Items]
Premiums Receivable, Gross	0	0
Other International [Member] | International Finance [Member] | IV [Member]
Insurance [Line Items]
Premiums Receivable, Gross	$ 0	$ 0

X

- Definition

Amount of insured par outstanding ceded to reinsurer.

+ References

No definition available.

+ Details

Name:	ambc_AmountOfInsuredParOutstandingCededToReinsurer
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

This element represents the reduction to gross claim liability for subrogation on insured RMBS financial obligations with credit deterioration, net of reinsurance.

+ References

No definition available.

+ Details

Name:	ambc_BalanceOfRmbsSubrogationRecoveriesNetOfReinsurance
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Ceded Loss And Loss Expenses Paid Not Yet Recovered

+ References

No definition available.

+ Details

Name:	ambc_CededLossAndLossExpensesPaidNotYetRecovered
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Ceded Principal Outstanding Major Reinsurer Percentage.

+ References

No definition available.

+ Details

Name:	ambc_CededPrincipalOutstandingMajorReinsurerPercentage
Namespace Prefix:	ambc_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average discounted rate of estimated future premium payments to be paid by the VIEs.

+ References

No definition available.

+ Details

Name:	ambc_EstimatedFuturePremiumPaymentsWeightedAverageDiscountedRate
Namespace Prefix:	ambc_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Financial Guarantee Outstanding Principal Ceded to third parties.

+ References

No definition available.

+ Details

Name:	ambc_FinancialGuaranteeOutstandingPrincipalCededToThirdParties
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Insurance [Line Items]

+ References

No definition available.

+ Details

Name:	ambc_InsuranceLineItems
Namespace Prefix:	ambc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The known and estimated amount recoverable as of the balance sheet date from reinsurers for claims expected to be paid or incurred by the ceding insurer.

+ References

No definition available.

+ Details

Name:	ambc_LossReservesCededToReinsurers
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Net Incurred RMBS Subrogation Recoveries

+ References

No definition available.

+ Details

Name:	ambc_NetIncurredRMBSSubrogationRecoveries
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Reinsurance Recoverable, Gross, All Other

+ References

No definition available.

+ Details

Name:	ambc_ReinsuranceRecoverableGrossAllOther
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Uncollateralized Credit Exposure Supoorted by Unlimited Uncapped Indemnity

+ References

No definition available.

+ Details

Name:	ambc_UncollateralizedCreditExposureSupoortedByUnlimitedUncappedIndemnity
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Unsecured Reinsurance Recoverable, All Other

+ References

No definition available.

+ Details

Name:	ambc_UnsecuredReinsuranceRecoverableAllOther
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents reinsurance recoverables on paid and unpaid losses and deferred ceded premiums, net of ceded premiums payables due to reinsurers, letters of credit, and collateral posted for the benefit of the cedant.

+ References

No definition available.

+ Details

Name:	ambc_UnsecuredReinsuranceRecoverables
Namespace Prefix:	ambc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482686/350-30-45-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482665/350-30-50-2

+ Details

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

This element represents the amount of premium revenue on financial guarantee insurance contracts recognized during the period that was accelerated for revenue recognition purposes.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479655/944-605-50-4

+ Details

Name:	us-gaap_FinancialGuaranteeInsuranceContractsAcceleratedPremiumRevenueAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents the weighted average risk free rate used to discount the claim liability related to financial guarantee insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 9
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480081/944-40-50-9

+ Details

Name:	us-gaap_FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of the premium receivable for financial guarantee insurance contracts reported in the statement of financial position. This element primarily would consist of those financial guarantee insurance contracts which premiums are to be collected over the contract period, but may, on occasion, include premiums which are to be collected in full at inception, but which straddle a financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479584/944-310-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)(5)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479584/944-310-50-3

+ Details

Name:	us-gaap_FinancialGuaranteeInsuranceContractsPremiumReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Weighted average period over which premium receivable for financial guarantee insurance contracts is collected where premium is received over the contract period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(5)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479584/944-310-50-3

+ Details

Name:	us-gaap_FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482665/350-30-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482686/350-30-45-1

+ Details

Name:	us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount, after effects of reinsurance, of payments to settle claims incurred in prior periods and related claims settlement costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-SubTopic 40
-Topic 944
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480081/944-40-50-3

+ Details

Name:	us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of expense (reversal of expense) for expected credit loss on premium receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

+ Details

Name:	us-gaap_PremiumReceivableCreditLossExpenseReversal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The carrying value as of the balance sheet date of the estimated valuation allowance to reduce gross premiums receivable to net realizable value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(5))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 11B
-Subparagraph (b)
-SubTopic 10
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

+ Details

Name:	us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of writeoff of premium receivable, charged against allowance for credit loss.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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