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The number of shares received by an entity as part of the consideration in terminating a capped call transaction.

No definition available.

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Total amount of consideration received by an entity for the termination of a capped call transaction related to convertible debt.

No definition available.

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This concept represents the percent of stock with ordinary voting rights that the company must retain in order to make any capital stock transactions under debt covenant agreement.

No definition available.

Name:	rdn_PercentofStockWithOrdinaryVotingRightsThatCompanyMustRetainInOrderToMakeAnyCapitalStockTransactionsUnderDebtCovenantAgreement
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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

No definition available.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
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Period Type:	duration

Face (par) amount of the original debt instrument that was repurchased.

No definition available.

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Balance Type:	debit
Period Type:	instant

Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase.

No definition available.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Consideration given by issuer of convertible debt to provide an incentive for debt holders to convert the debt to equity securities. The expense is equal to the fair value of all securities and other consideration transferred in the transaction in excess of the fair value of securities issuable pursuant to the original conversion terms.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Name:	us-gaap_LongTermDebt
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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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