Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000890926-22-000007-index-headers.html | 2022-02-25 16:17:34 | |
| 0000890926-22-000007-index.html | 2022-02-25 16:17:34 | |
| 0000890926-22-000007.txt | 2022-02-25 16:17:34 | |
 0000890926-22-000007-xbrl.zip | 1345218 | 2022-02-25 16:17:34 |
| FilingSummary.xml | 67992 | 2022-02-25 16:17:34 |
| Financial_Report.xlsx | 221821 | 2022-02-25 16:17:34 |
 image_01a.jpg | 14710 | 2022-02-25 16:17:34 |
 image_02a.jpg | 13763 | 2022-02-25 16:17:34 |
 image_101a.jpg | 14683 | 2022-02-25 16:17:34 |
 image_103a.jpg | 60154 | 2022-02-25 16:17:34 |
 image_107a.jpg | 118589 | 2022-02-25 16:17:34 |
 image_109a.jpg | 103295 | 2022-02-25 16:17:34 |
 image_112a.jpg | 59811 | 2022-02-25 16:17:34 |
 image_113.jpg | 17397 | 2022-02-25 16:17:34 |
 image_115a.jpg | 122042 | 2022-02-25 16:17:34 |
 image_117a.jpg | 60271 | 2022-02-25 16:17:34 |
 image_12.jpg | 12165 | 2022-02-25 16:17:34 |
 image_120.jpg | 60068 | 2022-02-25 16:17:34 |
 image_1221.jpg | 119134 | 2022-02-25 16:17:34 |
 image_124a.jpg | 60373 | 2022-02-25 16:17:34 |
 image_126a.jpg | 120744 | 2022-02-25 16:17:34 |
 image_128.jpg | 232 | 2022-02-25 16:17:34 |
 image_129a.jpg | 121048 | 2022-02-25 16:17:34 |
 image_131.jpg | 137 | 2022-02-25 16:17:34 |
 image_132a.jpg | 118478 | 2022-02-25 16:17:34 |
 image_134a.jpg | 12471 | 2022-02-25 16:17:34 |
 image_136a.jpg | 16953 | 2022-02-25 16:17:34 |
 image_13a.jpg | 21133 | 2022-02-25 16:17:34 |
 image_14a.jpg | 72 | 2022-02-25 16:17:34 |
 image_16a.jpg | 15523 | 2022-02-25 16:17:34 |
 image_23.jpg | 72 | 2022-02-25 16:17:34 |
 image_25a.jpg | 18059 | 2022-02-25 16:17:34 |
 image_331a.jpg | 24095 | 2022-02-25 16:17:34 |
 image_37a.jpg | 141 | 2022-02-25 16:17:34 |
 image_38a.jpg | 137 | 2022-02-25 16:17:34 |
 image_4.jpg | 238 | 2022-02-25 16:17:34 |
 image_40a.jpg | 183 | 2022-02-25 16:17:34 |
 image_41.jpg | 13472 | 2022-02-25 16:17:34 |
 image_45a.jpg | 26433 | 2022-02-25 16:17:34 |
 image_51.jpg | 143 | 2022-02-25 16:17:34 |
 image_53a.jpg | 22203 | 2022-02-25 16:17:34 |
 image_57a.jpg | 17928 | 2022-02-25 16:17:34 |
 image_58a.jpg | 22397 | 2022-02-25 16:17:34 |
 image_63a.jpg | 26301 | 2022-02-25 16:17:34 |
 image_65.jpg | 264 | 2022-02-25 16:17:34 |
 image_67a.jpg | 29562 | 2022-02-25 16:17:34 |
 image_711.jpg | 22334 | 2022-02-25 16:17:34 |
 image_71a.jpg | 26062 | 2022-02-25 16:17:34 |
 image_75a.jpg | 139 | 2022-02-25 16:17:34 |
 image_79a.jpg | 19508 | 2022-02-25 16:17:34 |
 image_82.jpg | 146 | 2022-02-25 16:17:34 |
 image_97a.jpg | 16961 | 2022-02-25 16:17:34 |
 image_99a.jpg | 23624 | 2022-02-25 16:17:34 |
| MetaLinks.json | 1272936 | 2022-02-25 16:17:34 |
| R1.htm | 62756 | 2022-02-25 16:17:34 |
| R10.htm | 4314 | 2022-02-25 16:17:34 |
| R100.htm | 18623 | 2022-02-25 16:17:34 |
| R101.htm | 8313 | 2022-02-25 16:17:34 |
| R102.htm | 115026 | 2022-02-25 16:17:34 |
| R103.htm | 16608 | 2022-02-25 16:17:34 |
| R104.htm | 60085 | 2022-02-25 16:17:34 |
| R105.htm | 42826 | 2022-02-25 16:17:34 |
| R106.htm | 10716 | 2022-02-25 16:17:34 |
| R107.htm | 65791 | 2022-02-25 16:17:34 |
| R108.htm | 88328 | 2022-02-25 16:17:34 |
| R109.htm | 63623 | 2022-02-25 16:17:34 |
| R11.htm | 82400 | 2022-02-25 16:17:34 |
| R110.htm | 73202 | 2022-02-25 16:17:34 |
| R111.htm | 30925 | 2022-02-25 16:17:34 |
| R112.htm | 24508 | 2022-02-25 16:17:34 |
| R12.htm | 123348 | 2022-02-25 16:17:34 |
| R13.htm | 16760 | 2022-02-25 16:17:34 |
| R14.htm | 83023 | 2022-02-25 16:17:34 |
| R15.htm | 25889 | 2022-02-25 16:17:34 |
| R16.htm | 166065 | 2022-02-25 16:17:34 |
| R17.htm | 192305 | 2022-02-25 16:17:34 |
| R18.htm | 238931 | 2022-02-25 16:17:34 |
| R19.htm | 34924 | 2022-02-25 16:17:34 |
| R2.htm | 7886 | 2022-02-25 16:17:34 |
| R20.htm | 142013 | 2022-02-25 16:17:34 |
| R21.htm | 20130 | 2022-02-25 16:17:34 |
| R22.htm | 77494 | 2022-02-25 16:17:34 |
| R23.htm | 176014 | 2022-02-25 16:17:34 |
| R24.htm | 35503 | 2022-02-25 16:17:34 |
| R25.htm | 43792 | 2022-02-25 16:17:34 |
| R26.htm | 13624 | 2022-02-25 16:17:34 |
| R27.htm | 53631 | 2022-02-25 16:17:34 |
| R28.htm | 80580 | 2022-02-25 16:17:34 |
| R29.htm | 42358 | 2022-02-25 16:17:34 |
| R3.htm | 102547 | 2022-02-25 16:17:34 |
| R30.htm | 127788 | 2022-02-25 16:17:34 |
| R31.htm | 37871 | 2022-02-25 16:17:34 |
| R32.htm | 123444 | 2022-02-25 16:17:34 |
| R33.htm | 25082 | 2022-02-25 16:17:34 |
| R34.htm | 25445 | 2022-02-25 16:17:34 |
| R35.htm | 154780 | 2022-02-25 16:17:34 |
| R36.htm | 183365 | 2022-02-25 16:17:34 |
| R37.htm | 243869 | 2022-02-25 16:17:34 |
| R38.htm | 34067 | 2022-02-25 16:17:34 |
| R39.htm | 134403 | 2022-02-25 16:17:34 |
| R4.htm | 25324 | 2022-02-25 16:17:34 |
| R40.htm | 17511 | 2022-02-25 16:17:34 |
| R41.htm | 77925 | 2022-02-25 16:17:34 |
| R42.htm | 178291 | 2022-02-25 16:17:34 |
| R43.htm | 25491 | 2022-02-25 16:17:34 |
| R44.htm | 35056 | 2022-02-25 16:17:34 |
| R45.htm | 39150 | 2022-02-25 16:17:34 |
| R46.htm | 76538 | 2022-02-25 16:17:34 |
| R47.htm | 41576 | 2022-02-25 16:17:34 |
| R48.htm | 124955 | 2022-02-25 16:17:34 |
| R49.htm | 36982 | 2022-02-25 16:17:34 |
| R5.htm | 79126 | 2022-02-25 16:17:34 |
| R50.htm | 4534 | 2022-02-25 16:17:34 |
| R51.htm | 12851 | 2022-02-25 16:17:34 |
| R52.htm | 19457 | 2022-02-25 16:17:34 |
| R53.htm | 34804 | 2022-02-25 16:17:34 |
| R54.htm | 38096 | 2022-02-25 16:17:34 |
| R55.htm | 19259 | 2022-02-25 16:17:34 |
| R56.htm | 33468 | 2022-02-25 16:17:34 |
| R57.htm | 63333 | 2022-02-25 16:17:34 |
| R58.htm | 21566 | 2022-02-25 16:17:34 |
| R59.htm | 178202 | 2022-02-25 16:17:34 |
| R6.htm | 39611 | 2022-02-25 16:17:34 |
| R60.htm | 8909 | 2022-02-25 16:17:34 |
| R61.htm | 15019 | 2022-02-25 16:17:34 |
| R62.htm | 65990 | 2022-02-25 16:17:34 |
| R63.htm | 16168 | 2022-02-25 16:17:34 |
| R64.htm | 63106 | 2022-02-25 16:17:34 |
| R65.htm | 15806 | 2022-02-25 16:17:34 |
| R66.htm | 18299 | 2022-02-25 16:17:34 |
| R67.htm | 33136 | 2022-02-25 16:17:34 |
| R68.htm | 16033 | 2022-02-25 16:17:34 |
| R69.htm | 57122 | 2022-02-25 16:17:34 |
| R7.htm | 50228 | 2022-02-25 16:17:34 |
| R70.htm | 19947 | 2022-02-25 16:17:34 |
| R71.htm | 19558 | 2022-02-25 16:17:34 |
| R72.htm | 16280 | 2022-02-25 16:17:34 |
| R73.htm | 35953 | 2022-02-25 16:17:34 |
| R74.htm | 17589 | 2022-02-25 16:17:34 |
| R75.htm | 34315 | 2022-02-25 16:17:34 |
| R76.htm | 51096 | 2022-02-25 16:17:34 |
| R77.htm | 38738 | 2022-02-25 16:17:34 |
| R78.htm | 20042 | 2022-02-25 16:17:34 |
| R79.htm | 9006 | 2022-02-25 16:17:34 |
| R8.htm | 56513 | 2022-02-25 16:17:34 |
| R80.htm | 13060 | 2022-02-25 16:17:34 |
| R81.htm | 20891 | 2022-02-25 16:17:34 |
| R82.htm | 38109 | 2022-02-25 16:17:34 |
| R83.htm | 20147 | 2022-02-25 16:17:34 |
| R84.htm | 19083 | 2022-02-25 16:17:34 |
| R85.htm | 10170 | 2022-02-25 16:17:34 |
| R86.htm | 32914 | 2022-02-25 16:17:34 |
| R87.htm | 20323 | 2022-02-25 16:17:34 |
| R88.htm | 17268 | 2022-02-25 16:17:34 |
| R89.htm | 58307 | 2022-02-25 16:17:34 |
| R9.htm | 55956 | 2022-02-25 16:17:34 |
| R90.htm | 59851 | 2022-02-25 16:17:34 |
| R91.htm | 18056 | 2022-02-25 16:17:34 |
| R92.htm | 24119 | 2022-02-25 16:17:34 |
| R93.htm | 33678 | 2022-02-25 16:17:34 |
| R94.htm | 58293 | 2022-02-25 16:17:34 |
| R95.htm | 21269 | 2022-02-25 16:17:34 |
| R96.htm | 12918 | 2022-02-25 16:17:34 |
| R97.htm | 33567 | 2022-02-25 16:17:34 |
| R98.htm | 34174 | 2022-02-25 16:17:34 |
| R99.htm | 66219 | 2022-02-25 16:17:34 |
| rdn-20211231.htm | 5907531 | 2022-02-25 16:17:34 |
| rdn-20211231.xsd | 111713 | 2022-02-25 16:17:34 |
| rdn-20211231_cal.xml | 155281 | 2022-02-25 16:17:34 |
| rdn-20211231_def.xml | 763231 | 2022-02-25 16:17:34 |
 rdn-20211231_g1.jpg | 72932 | 2022-02-25 16:17:34 |
 rdn-20211231_g2.jpg | 56178 | 2022-02-25 16:17:34 |
 rdn-20211231_g3.jpg | 56643 | 2022-02-25 16:17:34 |
 rdn-20211231_g4.jpg | 42570 | 2022-02-25 16:17:34 |
| rdn-20211231_htm.xml | 5304681 | 2022-02-25 16:17:34 |
| rdn-20211231_lab.xml | 1360112 | 2022-02-25 16:17:34 |
| rdn-20211231_pre.xml | 1022339 | 2022-02-25 16:17:34 |
| rdn-ex101_20211231.htm | 1522516 | 2022-02-25 16:17:34 |
| rdn-ex102_20211231.htm | 3127188 | 2022-02-25 16:17:34 |
| rdn-ex21_20211231.htm | 16978 | 2022-02-25 16:17:34 |
| rdn-ex231_20211231.htm | 2959 | 2022-02-25 16:17:34 |
| rdn-ex31_20211231.htm | 17759 | 2022-02-25 16:17:34 |
| rdn-ex32_20211231.htm | 6201 | 2022-02-25 16:17:34 |
| report.css | 2768 | 2022-02-25 16:17:34 |
| Show.js | 1086 | 2022-02-25 16:17:34 |