This concept represents the maximum amount of risk per loan allowed by certain state regulators.

No definition available.

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- Definition

Amount of earned premiums assumed from other entities.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 235

-Section S99

-Paragraph 2

-Subparagraph (SX 210.12-17)

-URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.1)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 605

-Section 50

-Paragraph 1

-Subparagraph (b),(c)(2)

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 1

-Article 7

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Amount of written premiums assumed from other entities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 605

-Section 50

-Paragraph 1

-Subparagraph (b)(2),(c)(2)

-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of earned premiums ceded to other entities.

+ References

+ Details

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

- Definition

Amount of written premiums ceded to other entities.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

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-Publisher SEC

-Name Regulation S-X (SX)

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 605

-Section 50

-Paragraph 1

-Subparagraph (b),(c)(1)

-URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums written.

+ References

+ Details

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- Definition

Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

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-Publisher SEC

-Name Regulation S-X (SX)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

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-Name Accounting Standards Codification

-Topic 942

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-Paragraph 1

-Subparagraph (SX 210.9-04.13(c))

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- Definition

Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written.

+ References

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- Details

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- Definition

The unexpired portion of premiums ceded on policies in force as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Prepaid Reinsurance Premiums

-URI http://asc.fasb.org/extlink&oid=6521719

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-SubTopic 340

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-Paragraph 1

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- Details

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Note 8 - Reinsurance Reinsurance Premiums (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Prepaid Reinsurance Premiums	$ 57,291us-gaap_PrepaidReinsurancePremiums				$ 60,512us-gaap_PrepaidReinsurancePremiums				$ 57,291us-gaap_PrepaidReinsurancePremiums	$ 60,512us-gaap_PrepaidReinsurancePremiums
Premiums Written, Net [Abstract]
Direct Premiums Written									982,976us-gaap_DirectPremiumsWritten	1,033,323us-gaap_DirectPremiumsWritten	892,650us-gaap_DirectPremiumsWritten
Assumed Premiums Written									(882)us-gaap_AssumedPremiumsWritten	(904)us-gaap_AssumedPremiumsWritten	(903)us-gaap_AssumedPremiumsWritten
Ceded Premiums Written									(56,913)us-gaap_CededPremiumsWritten	(81,421)us-gaap_CededPremiumsWritten	(85,442)us-gaap_CededPremiumsWritten
Net premiums written—insurance									925,181us-gaap_PremiumsWrittenNet	950,998us-gaap_PremiumsWrittenNet	806,305us-gaap_PremiumsWrittenNet
Premiums Earned, Net [Abstract]
Direct Premiums Earned									905,502us-gaap_DirectPremiumsEarned	848,655us-gaap_DirectPremiumsEarned	743,736us-gaap_DirectPremiumsEarned
Assumed Premiums Earned									43us-gaap_AssumedPremiumsEarned	56us-gaap_AssumedPremiumsEarned	(953)us-gaap_AssumedPremiumsEarned
Ceded Premiums Earned									(61,017)us-gaap_CededPremiumsEarned	(67,291)us-gaap_CededPremiumsEarned	(40,398)us-gaap_CededPremiumsEarned
Net premiums earned—insurance	224,293us-gaap_PremiumsEarnedNet	217,827us-gaap_PremiumsEarnedNet	203,646us-gaap_PremiumsEarnedNet	198,762us-gaap_PremiumsEarnedNet	200,356us-gaap_PremiumsEarnedNet	200,120us-gaap_PremiumsEarnedNet	197,952us-gaap_PremiumsEarnedNet	182,992us-gaap_PremiumsEarnedNet	844,528us-gaap_PremiumsEarnedNet	781,420us-gaap_PremiumsEarnedNet	702,385us-gaap_PremiumsEarnedNet
Mortgage Insurance and Financial Guarantee Contracts [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Prepaid Reinsurance Premiums	57,300				60,500				57,300	60,500
Radian Guaranty [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Risk To Capital Ratio, Regulatory Maximum	25.00%								25.00%
Mortgage Insurance Segment
Premiums Written, Net [Abstract]
Direct Premiums Written									982,976	1,033,323	892,650
Assumed Premiums Written									(882)	(904)	(903)
Ceded Premiums Written									(56,913)	(81,421)	(85,442)
Net premiums written—insurance									925,181	950,998	806,305
Premiums Earned, Net [Abstract]
Direct Premiums Earned									905,502	848,655	743,736
Assumed Premiums Earned									43	56	(953)
Ceded Premiums Earned									(61,017)	(67,291)	(40,398)
Net premiums earned—insurance									$ 844,528	$ 781,420	$ 702,385