XML 63 R50.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note 5 - Investments Available for Sale Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged |  | $ 76,600 |
Loaned securities |  | 34,364 | $ 27,964
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 48,778
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 16,434
Available-for-sale Debt and Equity Securities, Amortized Cost |  |  | 3,617,103
Available-for-sale Debt and Equity Securities, Fair Value |  |  | 3,649,447
Fixed-maturities available for sale—at amortized cost |  | 3,838,823 | 3,426,217
Fixed-maturities available for sale—at fair value (amortized cost $3,838,823 and $3,426,217) |  | 3,763,710 | 3,458,719
US government and agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 69,667
Available for Sale Securities, Fair Value |  |  | 69,396
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 96
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 367
State and municipal obligations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 156,587
Available for Sale Securities, Fair Value |  |  | 161,722
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 5,834
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 699
Corporate bonds and notes |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 1,869,318
Available for Sale Securities, Fair Value |  |  | 1,894,886
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 33,620
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 8,052
RMBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 189,455
Available for Sale Securities, Fair Value |  |  | 187,229
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 636
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 2,862
CMBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 451,595
Available for Sale Securities, Fair Value |  |  | 453,394
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 3,409
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 1,610
Other ABS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 672,715
Available for Sale Securities, Fair Value |  |  | 674,548
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 2,655
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 822
Foreign government and agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 31,417
Available for Sale Securities, Fair Value |  |  | 32,207
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 823
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 33
Total fixed-maturities available for sale |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  |  | 3,440,754
Available for Sale Securities, Fair Value | [1] |  | 3,473,382
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  |  | 47,073
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  |  | 14,445
Fixed-maturities available for sale—at amortized cost | [2] | 3,846,057 |
Fixed-maturities available for sale—at fair value (amortized cost $3,838,823 and $3,426,217) | [2] | 3,770,742 |
Equity securities available for sale |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available-for-sale Equity Securities, Amortized Cost | [3] |  | 176,349
Available-for-sale Equity Securities, Fair Value | [1],[3] |  | 176,065
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax | [3] |  | 1,705
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax | [3] |  | 1,989
Securities Financing Transaction, Fair Value |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Loaned securities | [4] | 34,364 | 27,964
Securities Financing Transaction, Fair Value | Corporate bonds and notes |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Loaned securities | [4] | 7,427 | 13,862
Securities Financing Transaction, Fair Value | Foreign government and agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Loaned securities | [4] | 0 | 867
Securities Financing Transaction, Fair Value | Equity securities available for sale |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Loaned securities | [4] | 26,847 | 13,235
Fixed maturities | US government and agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged |  | 10,500 |
Available for Sale Securities, Amortized Cost |  | 75,369 |
Available for Sale Securities, Fair Value | [5] | 72,645 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 0 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 2,724 |
Fixed maturities | State and municipal obligations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  | 140,877 |
Available for Sale Securities, Fair Value |  | 139,986 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 1,859 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 2,750 |
Fixed maturities | Corporate bonds and notes |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  | 2,158,991 |
Available for Sale Securities, Fair Value |  | 2,108,779 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 4,262 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 54,474 |
Fixed maturities | RMBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged |  | 66,100 |
Available for Sale Securities, Amortized Cost |  | 258,152 |
Available for Sale Securities, Fair Value | [6] | 250,056 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 4 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 8,100 |
Fixed maturities | CMBS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  | 536,982 |
Available for Sale Securities, Fair Value |  | 525,858 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 363 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 11,487 |
Fixed maturities | Other ABS |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for Sale Securities, Amortized Cost |  | 675,686 |
Available for Sale Securities, Fair Value |  | 673,418 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 967 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 3,235 |
Fixed maturities | Total fixed-maturities available for sale |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax |  | 7,455 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax |  | 82,770 |
Available-for-sale Debt and Equity Securities, Amortized Cost |  | 3,846,057 |
Available-for-sale Debt and Equity Securities, Fair Value | [7] | 3,770,742 |
Fixed maturities | Securities Financing Transaction, Fair Value |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Loaned securities |  | $ 7,000 | $ 14,700
[1] | Includes $14.7 million of fixed maturity securities and $13.2 million of equity securities loaned to third-party Borrowers under securities lending agreements, classified as other assets in our condensed consolidated balance sheets, as further described below.
[2] | Includes securities loaned under securities lending agreements.
[3] | Primarily consists of investments in fixed-income and equity exchange-traded funds and publicly-traded business development company equities.
[4] | Our securities loaned under securities lending agreements are reported at fair value within other assets in our condensed consolidated balance sheets. All of our securities lending agreements are classified as overnight and revolving. None of the amounts are subject to offsetting.
[5] | Includes securities with a fair value of $10.5 million serving as collateral for FHLB advances.
[6] | Includes securities with a fair value of $66.1 million serving as collateral for FHLB advances.
[7] | Includes $7.0 million of fixed-maturity securities loaned to third-party Borrowers under securities lending agreements, classified as other assets in our condensed consolidated balance sheets, as further described below.

X
- Definition Available-for-sale Equity Securities, including Loaned Securities, Amortized Cost Basis + References No definition available. + Details
Name: | rdn_AvailableforsaleEquitySecuritiesincludingLoanedSecuritiesAmortizedCostBasis
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available-for-sale Debt Securities, including Loaned Securities + References No definition available. + Details
Name: | rdn_AvailableforsaleSecuritiesincludingLoanedSecurities
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available-for-sale Securities, including Loaned Securities, Amortized Cost Basis + References No definition available. + Details
Name: | rdn_AvailableforsaleSecuritiesincludingLoanedSecuritiesAmortizedCostBasis
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available-for-sale Securities, including Loaned Securities, Equity Securities + References No definition available. + Details
Name: | rdn_AvailableforsaleSecuritiesincludingLoanedSecuritiesEquitySecurities
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26610-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of asset associated with securities loaned to entities in exchange for collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_SecuritiesLoanedAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_DebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SecuritiesFinancingTransactionAxis=us-gaap_SecuritiesFinancingTransactionFairValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FixedMaturitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |