Note 9 - Financial Guaranty Insurance Contracts Premium Receivable and Unearned Premium NPV and Accretion (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended	9 Months Ended
Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Premiums Earned Accretion	Sep. 30, 2010 Premiums Earned Accretion	Sep. 30, 2011 Premiums Earned Accretion	Sep. 30, 2010 Premiums Earned Accretion
Premiums receivable	$ 35.7	$ 44.0
Unearned premiums	41.2	60.5
Accretion of Premium Receivable and Unearned Premium			$ 0.3	$ 0.4	$ 0.9	$ 1.2
Premium Receivable, Weighted Average Risk Free Discount Rate	2.60%

Amount of unearned premium revenue in the statement of financial position for financial guarantee insurance contracts where the premium is received over the contract period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 163

-Paragraph 30

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 163

-Paragraph 31

-Subparagraph a(9)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 310

-Section 50

-Paragraph 3

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6933075&loc=SL5748726-161290

Name:	us-gaap_FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodUnearnedPremiumRevenue
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant