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Capital Stock - Share-based and Other Compensation Programs (Details) | 6 Months Ended
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Jun. 30, 2025 $ / shares shares
Performance Based RSUs Equity Settled |  |
Number of Shares |  |
Outstanding, Beginning Balance (in shares) | shares | 2,639,190 | [1]
Granted (in shares) | shares | 492,170 | [2]
Performance adjustment (in shares) | shares | 549,540 | [3]
Vested (in shares) | shares | (1,158,485) | [4]
Forfeited (in shares) | shares | (11,216) |
Outstanding, Ending Balance (in shares) | shares | 2,511,199 | [1]
Weighted Average Grant Date Fair Value |  |
Outstanding, Beginning Balance (in usd per share) | $ / shares | $ 22.57 | [1]
Granted (in usd per share) | $ / shares | 30.96 | [2]
Performance adjustment (in usd per share) | $ / shares | 0 | [3]
Vested (in usd per share) | $ / shares | 20.19 | [4]
Forfeited (in usd per share) | $ / shares | 29.34 |
Outstanding, Ending Balance (in usd per share) | $ / shares | $ 24.61 | [1]
Timed-Vested RSUs Equity Settled |  |
Number of Shares |  |
Outstanding, Beginning Balance (in shares) | shares | 1,589,396 | [1]
Granted (in shares) | shares | 387,072 | [2]
Performance adjustment (in shares) | shares | 0 | [3]
Vested (in shares) | shares | (604,393) | [4]
Forfeited (in shares) | shares | (7,747) |
Outstanding, Ending Balance (in shares) | shares | 1,364,328 | [1]
Weighted Average Grant Date Fair Value |  |
Outstanding, Beginning Balance (in usd per share) | $ / shares | $ 20.75 | [1]
Granted (in usd per share) | $ / shares | 33.17 | [2]
Performance adjustment (in usd per share) | $ / shares | 0 | [3]
Vested (in usd per share) | $ / shares | 21.95 | [4]
Forfeited (in usd per share) | $ / shares | 26.88 |
Outstanding, Ending Balance (in usd per share) | $ / shares | $ 23.71 | [1]
[1] | Outstanding RSUs represent shares that have not yet been issued because not all conditions necessary to earn the right to benefit from the instruments have been satisfied. For performance-based awards, the final number of RSUs distributed depends on: (i) the cumulative growth in Radian’s book value per share adjusted for certain defined items over the respective three-year performance period and, for the performance-based RSUs granted starting in 2023, a modifier based on a comparison of our total shareholder return to the total shareholder return of certain of our peers and (ii) with the exception of certain retirement-eligible employees, continued service through the vesting date, which could result in changes to the number of vested RSUs.
[2] | For performance-based RSUs, amount represents the number of target shares at grant date.
[3] | For performance-based RSUs, amount represents the difference between the number of shares vested at settlement, which can range from 0 to 200% of target depending on results over the applicable performance periods, and the number of target shares at the grant date.
[4] | For both performance-based and time-based RSUs, amount represents the number of shares vested during the period, including the impact of performance adjustments for performance-based awards.

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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