Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-21-037701-index-headers.html | 2021-07-23 11:54:21 | |
| 0001564590-21-037701-index.html | 2021-07-23 11:54:21 | |
| 0001564590-21-037701.txt | 2021-07-23 11:54:21 | |
 0001564590-21-037701-xbrl.zip | 238043 | 2021-07-23 11:54:21 |
| FilingSummary.xml | 37771 | 2021-07-23 11:54:21 |
| Financial_Report.xlsx | 96881 | 2021-07-23 11:54:21 |
| MetaLinks.json | 729390 | 2021-07-23 11:54:21 |
| R1.htm | 52214 | 2021-07-23 11:54:21 |
| R10.htm | 98929 | 2021-07-23 11:54:21 |
| R11.htm | 172390 | 2021-07-23 11:54:21 |
| R12.htm | 143302 | 2021-07-23 11:54:21 |
| R13.htm | 331255 | 2021-07-23 11:54:21 |
| R14.htm | 147139 | 2021-07-23 11:54:21 |
| R15.htm | 422109 | 2021-07-23 11:54:21 |
| R16.htm | 385259 | 2021-07-23 11:54:21 |
| R17.htm | 980752 | 2021-07-23 11:54:21 |
| R18.htm | 95475 | 2021-07-23 11:54:21 |
| R19.htm | 168774 | 2021-07-23 11:54:21 |
| R2.htm | 75923 | 2021-07-23 11:54:21 |
| R20.htm | 139904 | 2021-07-23 11:54:21 |
| R21.htm | 329825 | 2021-07-23 11:54:21 |
| R22.htm | 147149 | 2021-07-23 11:54:21 |
| R23.htm | 17854 | 2021-07-23 11:54:21 |
| R24.htm | 17707 | 2021-07-23 11:54:21 |
| R25.htm | 4563 | 2021-07-23 11:54:21 |
| R26.htm | 9966 | 2021-07-23 11:54:21 |
| R27.htm | 44927 | 2021-07-23 11:54:21 |
| R28.htm | 15471 | 2021-07-23 11:54:21 |
| R29.htm | 42359 | 2021-07-23 11:54:21 |
| R3.htm | 90383 | 2021-07-23 11:54:21 |
| R30.htm | 30539 | 2021-07-23 11:54:21 |
| R31.htm | 22908 | 2021-07-23 11:54:21 |
| R32.htm | 47585 | 2021-07-23 11:54:21 |
| R33.htm | 22373 | 2021-07-23 11:54:21 |
| R34.htm | 30696 | 2021-07-23 11:54:21 |
| R35.htm | 35668 | 2021-07-23 11:54:21 |
| R36.htm | 46275 | 2021-07-23 11:54:21 |
| R37.htm | 16038 | 2021-07-23 11:54:21 |
| R38.htm | 62023 | 2021-07-23 11:54:21 |
| R39.htm | 48658 | 2021-07-23 11:54:21 |
| R4.htm | 27148 | 2021-07-23 11:54:21 |
| R40.htm | 6300 | 2021-07-23 11:54:21 |
| R41.htm | 30050 | 2021-07-23 11:54:21 |
| R42.htm | 33439 | 2021-07-23 11:54:21 |
| R43.htm | 12225 | 2021-07-23 11:54:21 |
| R44.htm | 7156 | 2021-07-23 11:54:21 |
| R45.htm | 51760 | 2021-07-23 11:54:21 |
| R46.htm | 35965 | 2021-07-23 11:54:21 |
| R47.htm | 41093 | 2021-07-23 11:54:21 |
| R48.htm | 14382 | 2021-07-23 11:54:21 |
| R49.htm | 14353 | 2021-07-23 11:54:21 |
| R5.htm | 77959 | 2021-07-23 11:54:21 |
| R50.htm | 27783 | 2021-07-23 11:54:21 |
| R51.htm | 56966 | 2021-07-23 11:54:21 |
| R52.htm | 44337 | 2021-07-23 11:54:21 |
| R53.htm | 35619 | 2021-07-23 11:54:21 |
| R54.htm | 23199 | 2021-07-23 11:54:21 |
| R6.htm | 4751 | 2021-07-23 11:54:21 |
| R7.htm | 42920 | 2021-07-23 11:54:21 |
| R8.htm | 405356 | 2021-07-23 11:54:21 |
| R9.htm | 987824 | 2021-07-23 11:54:21 |
| report.css | 2767 | 2021-07-23 11:54:21 |
| rli-10q_20210630.htm | 4820758 | 2021-07-23 11:54:21 |
| rli-10q_20210630_htm.xml | 5647216 | 2021-07-23 11:54:21 |
| rli-20210630.xsd | 58883 | 2021-07-23 11:54:21 |
| rli-20210630_cal.xml | 90551 | 2021-07-23 11:54:21 |
| rli-20210630_def.xml | 209366 | 2021-07-23 11:54:21 |
| rli-20210630_lab.xml | 535304 | 2021-07-23 11:54:21 |
| rli-20210630_pre.xml | 423414 | 2021-07-23 11:54:21 |
| rli-ex311_8.htm | 10513 | 2021-07-23 11:54:21 |
| rli-ex312_9.htm | 10511 | 2021-07-23 11:54:21 |
| rli-ex321_7.htm | 6261 | 2021-07-23 11:54:21 |
| rli-ex322_6.htm | 6262 | 2021-07-23 11:54:21 |
| Show.js | 1085 | 2021-07-23 11:54:21 |