Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001620459-19-000087-index-headers.html | 2019-11-07 16:19:26 | |
| 0001620459-19-000087-index.html | 2019-11-07 16:19:26 | |
| 0001620459-19-000087.txt | 2019-11-07 16:19:26 | |
 0001620459-19-000087-xbrl.zip | 357149 | 2019-11-07 16:19:26 |
| FilingSummary.xml | 39613 | 2019-11-07 16:19:26 |
| Financial_Report.xlsx | 93570 | 2019-11-07 16:19:26 |
| jrvr-20190930.xsd | 51839 | 2019-11-07 16:19:26 |
| jrvr-20190930_cal.xml | 108644 | 2019-11-07 16:19:26 |
| jrvr-20190930_def.xml | 286836 | 2019-11-07 16:19:26 |
| jrvr-20190930_lab.xml | 777350 | 2019-11-07 16:19:26 |
| jrvr-20190930_pre.xml | 479473 | 2019-11-07 16:19:26 |
| jrvr0930201910q.htm | 3134167 | 2019-11-07 16:19:26 |
| jrvr0930201910q_htm.xml | 2785557 | 2019-11-07 16:19:26 |
| jrvrex10109302019.htm | 91862 | 2019-11-07 16:19:26 |
| jrvrex10209302019.htm | 88674 | 2019-11-07 16:19:26 |
| jrvrex31109302019.htm | 13554 | 2019-11-07 16:19:26 |
| jrvrex31209302019.htm | 13583 | 2019-11-07 16:19:26 |
| jrvrex3209302019.htm | 9755 | 2019-11-07 16:19:26 |
| MetaLinks.json | 649876 | 2019-11-07 16:19:26 |
| R1.htm | 55359 | 2019-11-07 16:19:26 |
| R10.htm | 35890 | 2019-11-07 16:19:26 |
| R11.htm | 41313 | 2019-11-07 16:19:26 |
| R12.htm | 51061 | 2019-11-07 16:19:26 |
| R13.htm | 36251 | 2019-11-07 16:19:26 |
| R14.htm | 10663 | 2019-11-07 16:19:26 |
| R15.htm | 183232 | 2019-11-07 16:19:26 |
| R16.htm | 23049 | 2019-11-07 16:19:26 |
| R17.htm | 192990 | 2019-11-07 16:19:26 |
| R18.htm | 108476 | 2019-11-07 16:19:26 |
| R19.htm | 7330 | 2019-11-07 16:19:26 |
| R2.htm | 88087 | 2019-11-07 16:19:26 |
| R20.htm | 41307 | 2019-11-07 16:19:26 |
| R21.htm | 12727 | 2019-11-07 16:19:26 |
| R22.htm | 263561 | 2019-11-07 16:19:26 |
| R23.htm | 34908 | 2019-11-07 16:19:26 |
| R24.htm | 39772 | 2019-11-07 16:19:26 |
| R25.htm | 44355 | 2019-11-07 16:19:26 |
| R26.htm | 33568 | 2019-11-07 16:19:26 |
| R27.htm | 184394 | 2019-11-07 16:19:26 |
| R28.htm | 21762 | 2019-11-07 16:19:26 |
| R29.htm | 185549 | 2019-11-07 16:19:26 |
| R3.htm | 23206 | 2019-11-07 16:19:26 |
| R30.htm | 104736 | 2019-11-07 16:19:26 |
| R31.htm | 49297 | 2019-11-07 16:19:26 |
| R32.htm | 19768 | 2019-11-07 16:19:26 |
| R33.htm | 65839 | 2019-11-07 16:19:26 |
| R34.htm | 34414 | 2019-11-07 16:19:26 |
| R35.htm | 40095 | 2019-11-07 16:19:26 |
| R36.htm | 46686 | 2019-11-07 16:19:26 |
| R37.htm | 29206 | 2019-11-07 16:19:26 |
| R38.htm | 52872 | 2019-11-07 16:19:26 |
| R39.htm | 9143 | 2019-11-07 16:19:26 |
| R4.htm | 74716 | 2019-11-07 16:19:26 |
| R40.htm | 20738 | 2019-11-07 16:19:26 |
| R41.htm | 7141 | 2019-11-07 16:19:26 |
| R42.htm | 27392 | 2019-11-07 16:19:26 |
| R43.htm | 14949 | 2019-11-07 16:19:26 |
| R44.htm | 31317 | 2019-11-07 16:19:26 |
| R45.htm | 24095 | 2019-11-07 16:19:26 |
| R46.htm | 8445 | 2019-11-07 16:19:26 |
| R47.htm | 26545 | 2019-11-07 16:19:26 |
| R48.htm | 6288 | 2019-11-07 16:19:26 |
| R49.htm | 45313 | 2019-11-07 16:19:26 |
| R5.htm | 5536 | 2019-11-07 16:19:26 |
| R50.htm | 33069 | 2019-11-07 16:19:26 |
| R51.htm | 14731 | 2019-11-07 16:19:26 |
| R52.htm | 24638 | 2019-11-07 16:19:26 |
| R53.htm | 83525 | 2019-11-07 16:19:26 |
| R54.htm | 25771 | 2019-11-07 16:19:26 |
| R55.htm | 12406 | 2019-11-07 16:19:26 |
| R56.htm | 33700 | 2019-11-07 16:19:26 |
| R57.htm | 22742 | 2019-11-07 16:19:26 |
| R58.htm | 9281 | 2019-11-07 16:19:26 |
| R59.htm | 14132 | 2019-11-07 16:19:26 |
| R6.htm | 52047 | 2019-11-07 16:19:26 |
| R60.htm | 41326 | 2019-11-07 16:19:26 |
| R61.htm | 33812 | 2019-11-07 16:19:26 |
| R62.htm | 7560 | 2019-11-07 16:19:26 |
| R63.htm | 6775 | 2019-11-07 16:19:26 |
| R64.htm | 15469 | 2019-11-07 16:19:26 |
| R7.htm | 67233 | 2019-11-07 16:19:26 |
| R8.htm | 36285 | 2019-11-07 16:19:26 |
| R9.htm | 275116 | 2019-11-07 16:19:26 |
| R9999.htm | 8083 | 2019-11-07 16:19:26 |
| report.css | 2767 | 2019-11-07 16:19:26 |
| Show.js | 1085 | 2019-11-07 16:19:26 |