XML 100 R95.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 16 - Commitments and Contingencies Contingent Claims for Trade Credit and Surety Primary Insurers (Details) (Trade Credit Reinsurance and Surety Insurance [Member], Financial Guaranty Segment, USD $) In Millions, unless otherwise specified | Sep. 30, 2014 servicers
--- | ---
Loss Contingencies [Line Items] |
Number of Servicers Who Have Submitted Claims | 1
Percentage of Claims Rejected by Entity | 100.00%
Euro Member Countries, Euro |
Loss Contingencies [Line Items] |
Loss Contingency, Claims Received Through Reporting Period | $ 12.4
Loss Contingency, Range of Possible Loss, Maximum | 16.9
United States of America, Dollars |
Loss Contingencies [Line Items] |
Loss Contingency, Claims Received Through Reporting Period | 15.7
Loss Contingency, Range of Possible Loss, Maximum | $ 21.3

X
- Definition The amount of claims received by the entity through the reporting period for a loss contingency. + References No definition available. + Details
Name: | rdn_LossContingencyClaimsReceivedThroughReportingPeriod
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of servicers of ceded insurance contracts who have submitted claims to the entity. + References No definition available. + Details
Name: | rdn_NumberofServicersWhoHaveSubmittedClaims
Namespace Prefix: | rdn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition This concept represents the percentage of claims rejected by the entity as related to commitment and contingency disclosure for the reporting period. + References No definition available. + Details
Name: | rdn_PercentageofClaimsRejectedbyEntity
Namespace Prefix: | rdn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated maximum amount of possible loss from the contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossMaximum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant