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Financial Guarantee Insurance Contracts - Additional Information (Detail) $ in Thousands, £ in Millions | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2021 GBP (£) | Dec. 31, 2020 GBP (£) | Dec. 31, 2019 GBP (£) | Dec. 31, 2018 USD ($)
Insurance [Line Items] |  |  |  |  |  |  |
Ceded Loss And Loss Expenses Paid Not Yet Recovered |  | $ 1,000 | $ 0 |  |  |  |
Net par amount of financial guarantees | $ 28,020,000 | 33,888,000 |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 1,098,000 | $ 1,140,000 | 1,536,000 |  |  |  | $ 1,633,000
Stockholders Equity After Possible Increase in Domestic Public Finance Loss Reserves | 743,000 |  |  |  |  |  |
Possible Increase in Domestic Public Finance Loss Reserves | $ 355,000 |  |  |  |  |  |
Estimated Future Premium Payments Weighted Average Discounted Rate | 2.20% | 2.20% |  | 2.20% | 2.20% |  |
Financial Guarantee Insurance Contracts, Premium Receivable | $ 320,000 | $ 370,000 | 416,000 |  |  |  | $ 495,000
Amount Of Insured Par Outstanding Ceded To Reinsurer | $ 2,695,000 |  |  |  |  |  |
Ceded Principal Outstanding Major Reinsurer Percentage | 7.90% |  |  |  |  |  |
Deferred Ceded Premiums And Reinsurance Recoverables | $ 145,000 |  |  |  |  |  |
Reinsurance Payable | $ 33,000 | $ 27,000 |  |  |  |  |
Weighted average period of future premiums | 8 years | 8 years 3 months 18 days |  |  |  |  |
Uncollectable premium receivables | $ 9,000 | $ 17,000 |  |  |  |  |
Accelerated premium revenue for retired obligations | 1,000 | 12,000 | 10,000 |  |  |  |
Reinsurance recoveries of losses included in losses and loss expenses | 5,000 | (11,000) | (7,000) |  |  |  |
Losses and loss expense reserves ceded to reinsurers |  | 33,000 |  |  |  |  |
Subrogation recoveries, net of reinsurance | (1,704,000) | (1,725,000) |  |  |  |  |
Amortization of intangible assets | 55,000 | 57,000 | 295,000 |  |  |  |
Intangible assets | 362,000 | 409,000 |  |  |  |  |
Letters of Credit Outstanding, Amount | 111,000 |  |  |  |  |  |
Financial Guarantee Outstanding Principal Ceded To Third Parties | 6,102,000 |  |  |  |  |  |
Public Finance Puerto Rico Net Par Outstanding | 1,054,000 |  |  |  |  |  |
Premiums Receivable, Gross | 329,000 | 387,000 |  |  |  |  |
Allowance for Doubtful Accounts, Premiums and Other Receivables | 9,000 | 17,000 | 9,000 |  |  |  |
Premium Receivable, Credit Loss Expense (Reversal) | (6,000) | 9,000 |  |  |  |  |
Premium Receivable, Allowance for Credit Loss, Writeoff | (2,000) | (2,000) |  |  |  |  |
Reinsurance Recoverable, Allowance for Credit Loss | 0 | 0 |  |  |  |  |
Net Incurred RMBS Subrogation Recoveries | 20,000 | (23,000) | 42,000 |  |  |  |
Eighth Amended POA Proposed Debt Restructure Amount | 33,000,000 |  |  |  |  |  |
Eighth Amended POA Proposed Pension Obligation Restructure Amount | $ 50,000,000 |  |  |  |  |  |
PHIFA Trust funded Share of Clawback CVI | 27.00% |  |  | 27.00% |  |  |
PRHTA Share of Contingent Value Instrument | 69.00% |  |  | 69.00% |  |  |
CCDA Share of Contingent Value Instrument | 4.00% |  |  | 4.00% |  |  |
Nominal Cap of Allowed PRIGA and CCDA Under Eighth Amended POA | 75.00% |  |  | 75.00% |  |  |
Stockholderes Equity After Possible Increase in Domestic Public Finance Loss Reserves | $ (607,000) |  |  |  |  |  |
Financial Guarantee |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Ceded Loss And Loss Expenses Paid Not Yet Recovered | 0 |  |  |  |  |  |
Losses and loss expense reserves ceded to reinsurers | 24,000 |  |  |  |  |  |
Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 277,000 | 302,000 |  |  |  |  |
IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 12,000 | 40,000 |  |  |  |  |
II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 6,000 | 3,000 |  |  |  |  |
III [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 22,000 | 27,000 |  |  |  |  |
IV [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | $ 12,000 | $ 15,000 |  |  |  |  |
Maximum [Member] | Furniture and Fixtures [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 5 years |  |  |  |  |  |
Loss Reserves [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Weighted average risk-free rate used to discount loss reserves | 1.20% | 1.10% |  |  |  |  |
United Kingdom, Pounds |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Financial Guarantee Insurance Contracts, Premium Receivable | $ 108,000 | $ 117,000 | $ 129,000 | £ 80 | £ 86 | £ 97 |
Public Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Net par amount of financial guarantees | 12,360,000 | 15,497,000 |  |  |  |  |
Premiums Receivable, Gross | 159,000 | 185,000 |  |  |  |  |
Public Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 151,000 | 157,000 |  |  |  |  |
Public Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 3,000 | 27,000 |  |  |  |  |
Public Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 5,000 | 0 |  |  |  |  |
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] |  |  |  |  |  |  |
Net par amount of financial guarantees | 4,904,000 | 6,337,000 |  |  |  |  |
Premiums Receivable, Gross | 45,000 | 59,000 |  |  |  |  |
Structured Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 19,000 | 27,000 |  |  |  |  |
Structured Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 1,000 | 0 |  |  |  |  |
Structured Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 1,000 | 3,000 |  |  |  |  |
Structured Finance [Member] | III [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 12,000 | 14,000 |  |  |  |  |
Structured Finance [Member] | IV [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 12,000 | 15,000 |  |  |  |  |
International Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Net par amount of financial guarantees | 10,756,000 | 12,054,000 |  |  |  |  |
Premiums Receivable, Gross | 125,000 | 144,000 |  |  |  |  |
International Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 107,000 | 118,000 |  |  |  |  |
International Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 8,000 | 13,000 |  |  |  |  |
International Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
International Finance [Member] | III [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 11,000 | 13,000 |  |  |  |  |
International Finance [Member] | IV [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
Housing Revenue [Member] | Public Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Net par amount of financial guarantees | 5,610,000 | 5,855,000 |  |  |  |  |
Premiums Receivable, Gross | 157,000 | 168,000 |  |  |  |  |
Housing Revenue [Member] | Public Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 149,000 | 155,000 |  |  |  |  |
Housing Revenue [Member] | Public Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 3,000 | 13,000 |  |  |  |  |
Housing Revenue [Member] | Public Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 5,000 | 0 |  |  |  |  |
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 |  |  |  |  |
Housing Revenue [Member] | Military Housing [Member] | Public Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Net par amount of financial guarantees | 5,490,000 | 5,575,000 |  |  |  |  |
Other Public Finance Sectors [Member] | Public Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 2,000 | 17,000 |  |  |  |  |
Other Public Finance Sectors [Member] | Public Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 2,000 | 2,000 |  |  |  |  |
Other Public Finance Sectors [Member] | Public Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 15,000 |  |  |  |  |
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 |  |  |  |  |
Mortgage-backed and Home Equity [Member] | Structured Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Net par amount of financial guarantees | 2,724,000 | 3,635,000 |  |  |  |  |
Premiums Receivable, Gross | 16,000 | 22,000 |  |  |  |  |
Mortgage-backed and Home Equity [Member] | Structured Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 1,000 | 3,000 |  |  |  |  |
Mortgage-backed and Home Equity [Member] | Structured Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
Mortgage-backed and Home Equity [Member] | Structured Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 1,000 | 1,000 |  |  |  |  |
Mortgage-backed and Home Equity [Member] | Structured Finance [Member] | III [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 2,000 | 3,000 |  |  |  |  |
Mortgage-backed and Home Equity [Member] | Structured Finance [Member] | IV [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 12,000 | 15,000 |  |  |  |  |
Structured Insurance [Member] | Structured Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 10,000 | 14,000 |  |  |  |  |
Structured Insurance [Member] | Structured Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 10,000 | 14,000 |  |  |  |  |
Structured Insurance [Member] | Structured Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
Structured Insurance [Member] | Structured Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
Structured Insurance [Member] | Structured Finance [Member] | III [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
Structured Insurance [Member] | Structured Finance [Member] | IV [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 0 |  |  |  |  |
Student Loan [Member] | Structured Finance [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 12,000 | 16,000 |  |  |  |  |
Student Loan [Member] | Structured Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 1,000 | 3,000 |  |  |  |  |
Student Loan [Member] | Structured Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 1,000 | 0 |  |  |  |  |
Student Loan [Member] | Structured Finance [Member] | II [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 0 | 2,000 |  |  |  |  |
Student Loan [Member] | Structured Finance [Member] | III [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 9,000 | 11,000 |  |  |  |  |
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] |  |  |  |  |  |  |
Net par amount of financial guarantees | 624,000 | 1,085,000 |  |  |  |  |
Premiums Receivable, Gross | 7,000 | 7,000 |  |  |  |  |
Other Structured Finance [Member] | Structured Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 7,000 | 7,000 |  |  |  |  |
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] |  |  |  |  |  |  |
Net par amount of financial guarantees | 5,141,000 | 5,270,000 |  |  |  |  |
Premiums Receivable, Gross | 93,000 | 108,000 |  |  |  |  |
Sovereign/Sub-sovereign [Member] | International Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 74,000 | 82,000 |  |  |  |  |
Sovereign/Sub-sovereign [Member] | International Finance [Member] | IA [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 8,000 | 13,000 |  |  |  |  |
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 | 11,000 | 13,000 |  |  |  |  |
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] |  |  |  |  |  |  |
Net par amount of financial guarantees | 3,283,000 | 3,899,000 |  |  |  |  |
Premiums Receivable, Gross | 28,000 | 31,000 |  |  |  |  |
Investor-owned and Public Utilities [Member] | International Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 28,000 | 31,000 |  |  |  |  |
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 | 5,000 | 5,000 |  |  |  |  |
Other International [Member] | International Finance [Member] | Surveillance Category One [Member] |  |  |  |  |  |  |
Insurance [Line Items] |  |  |  |  |  |  |
Premiums Receivable, Gross | 5,000 | 5,000 |  |  |  |  |
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 CCDA Share of Contingent Value Instrument + References No definition available. + Details
Name: | ambc_CCDAShareOfContingentValueInstrument
Namespace Prefix: | ambc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
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- Definition Ceded Principal Outstanding Major Reinsurer Percentage. + References No definition available. + Details
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- Definition Includes the unexpired portion of financial guarantee premiums ceded on policies as of the balance sheet date and reinsurance recoverables on claims or claim adjustment expense paid by the ceding insurer. + References No definition available. + Details
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- Definition Eighth Amended POA Proposed Debt Restructure Amount + References No definition available. + Details
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- Definition Weighted average discounted rate of estimated future premium payments to be paid by the VIEs. + References No definition available. + Details
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- Definition Financial Guarantee Outstanding Principal Ceded to third parties. + References No definition available. + Details
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- 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
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- Definition Possible Increase in Domestic Public Finance Loss Reserves + References No definition available. + Details
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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524 + Details
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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6933581&loc=SL5749298-161291 + Details
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- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 9 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=99382878&loc=SL5749324-161292 + Details
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- Definition Amount of participating insurance in force. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 50 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6483535&loc=d3e16392-158451 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on premium receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Gross amount, as of the balance sheet date, due the entity from (a) agents and insureds, (b) uncollected premiums and (c) others, before deducting the allowance for doubtful accounts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.5) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Amount of reduction of provision for policy benefits and costs incurred for policies ceded. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=99397103&loc=d3e6811-158387 + Details
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