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Label	Element	Value
Noncontrolling Interest [Member]
AMPS Impact on Stockholders Equity	ambc_AMPSImpactonStockholdersEquity	$ 2,764,000

X

- Definition

AMPS Impact on Stockholders Equity

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: