Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001647639-22-000064-index-headers.html | 2022-11-08 18:10:59 | |
| 0001647639-22-000064-index.html | 2022-11-08 18:10:59 | |
| 0001647639-22-000064.txt | 2022-11-08 18:10:59 | |
 0001647639-22-000064-xbrl.zip | 504152 | 2022-11-08 18:10:59 |
| exhibit101-creditkarma.htm | 63198 | 2022-11-08 18:10:59 |
| exhibit102-crbno3.htm | 19093 | 2022-11-08 18:10:59 |
| exhibit103-crbno4.htm | 19318 | 2022-11-08 18:10:59 |
| exhibit104-smbprogram.htm | 22717 | 2022-11-08 18:10:59 |
| exhibit105-smbsale.htm | 17695 | 2022-11-08 18:10:59 |
| exhibit311q32022.htm | 10165 | 2022-11-08 18:10:59 |
| exhibit312q32022.htm | 10162 | 2022-11-08 18:10:59 |
| exhibit321q32022.htm | 9064 | 2022-11-08 18:10:59 |
| FilingSummary.xml | 46553 | 2022-11-08 18:10:59 |
| Financial_Report.xlsx | 138831 | 2022-11-08 18:10:59 |
 image_0.jpg | 3834 | 2022-11-08 18:10:59 |
| MetaLinks.json | 825610 | 2022-11-08 18:10:59 |
| R1.htm | 53117 | 2022-11-08 18:10:59 |
| R10.htm | 273238 | 2022-11-08 18:10:59 |
| R11.htm | 26856 | 2022-11-08 18:10:59 |
| R12.htm | 21296 | 2022-11-08 18:10:59 |
| R13.htm | 36707 | 2022-11-08 18:10:59 |
| R14.htm | 53702 | 2022-11-08 18:10:59 |
| R15.htm | 96128 | 2022-11-08 18:10:59 |
| R16.htm | 36758 | 2022-11-08 18:10:59 |
| R17.htm | 18834 | 2022-11-08 18:10:59 |
| R18.htm | 16417 | 2022-11-08 18:10:59 |
| R19.htm | 46216 | 2022-11-08 18:10:59 |
| R2.htm | 88385 | 2022-11-08 18:10:59 |
| R20.htm | 5079 | 2022-11-08 18:10:59 |
| R21.htm | 38768 | 2022-11-08 18:10:59 |
| R22.htm | 71349 | 2022-11-08 18:10:59 |
| R23.htm | 29168 | 2022-11-08 18:10:59 |
| R24.htm | 300000 | 2022-11-08 18:10:59 |
| R25.htm | 26006 | 2022-11-08 18:10:59 |
| R26.htm | 22038 | 2022-11-08 18:10:59 |
| R27.htm | 38085 | 2022-11-08 18:10:59 |
| R28.htm | 35994 | 2022-11-08 18:10:59 |
| R29.htm | 85598 | 2022-11-08 18:10:59 |
| R3.htm | 74427 | 2022-11-08 18:10:59 |
| R30.htm | 36791 | 2022-11-08 18:10:59 |
| R31.htm | 12676 | 2022-11-08 18:10:59 |
| R32.htm | 46759 | 2022-11-08 18:10:59 |
| R33.htm | 12797 | 2022-11-08 18:10:59 |
| R34.htm | 33228 | 2022-11-08 18:10:59 |
| R35.htm | 4465 | 2022-11-08 18:10:59 |
| R36.htm | 12719 | 2022-11-08 18:10:59 |
| R37.htm | 16780 | 2022-11-08 18:10:59 |
| R38.htm | 52267 | 2022-11-08 18:10:59 |
| R39.htm | 15790 | 2022-11-08 18:10:59 |
| R4.htm | 73111 | 2022-11-08 18:10:59 |
| R40.htm | 21916 | 2022-11-08 18:10:59 |
| R41.htm | 44862 | 2022-11-08 18:10:59 |
| R42.htm | 33825 | 2022-11-08 18:10:59 |
| R43.htm | 24306 | 2022-11-08 18:10:59 |
| R44.htm | 38233 | 2022-11-08 18:10:59 |
| R45.htm | 20253 | 2022-11-08 18:10:59 |
| R46.htm | 12519 | 2022-11-08 18:10:59 |
| R47.htm | 21436 | 2022-11-08 18:10:59 |
| R48.htm | 24157 | 2022-11-08 18:10:59 |
| R49.htm | 28969 | 2022-11-08 18:10:59 |
| R5.htm | 86116 | 2022-11-08 18:10:59 |
| R50.htm | 14765 | 2022-11-08 18:10:59 |
| R51.htm | 24219 | 2022-11-08 18:10:59 |
| R52.htm | 26993 | 2022-11-08 18:10:59 |
| R53.htm | 19752 | 2022-11-08 18:10:59 |
| R54.htm | 14840 | 2022-11-08 18:10:59 |
| R55.htm | 9096 | 2022-11-08 18:10:59 |
| R56.htm | 19035 | 2022-11-08 18:10:59 |
| R57.htm | 16629 | 2022-11-08 18:10:59 |
| R58.htm | 17801 | 2022-11-08 18:10:59 |
| R59.htm | 25590 | 2022-11-08 18:10:59 |
| R6.htm | 118992 | 2022-11-08 18:10:59 |
| R60.htm | 15382 | 2022-11-08 18:10:59 |
| R61.htm | 15093 | 2022-11-08 18:10:59 |
| R62.htm | 105171 | 2022-11-08 18:10:59 |
| R63.htm | 23420 | 2022-11-08 18:10:59 |
| R64.htm | 13542 | 2022-11-08 18:10:59 |
| R65.htm | 15553 | 2022-11-08 18:10:59 |
| R66.htm | 108431 | 2022-11-08 18:10:59 |
| R67.htm | 51358 | 2022-11-08 18:10:59 |
| R68.htm | 29555 | 2022-11-08 18:10:59 |
| R69.htm | 15821 | 2022-11-08 18:10:59 |
| R7.htm | 15550 | 2022-11-08 18:10:59 |
| R70.htm | 39590 | 2022-11-08 18:10:59 |
| R71.htm | 14795 | 2022-11-08 18:10:59 |
| R72.htm | 3884 | 2022-11-08 18:10:59 |
| R73.htm | 21955 | 2022-11-08 18:10:59 |
| R74.htm | 16788 | 2022-11-08 18:10:59 |
| R75.htm | 7927 | 2022-11-08 18:10:59 |
| R76.htm | 8784 | 2022-11-08 18:10:59 |
| R77.htm | 37086 | 2022-11-08 18:10:59 |
| R78.htm | 18533 | 2022-11-08 18:10:59 |
| R8.htm | 83914 | 2022-11-08 18:10:59 |
| R9.htm | 36906 | 2022-11-08 18:10:59 |
| report.css | 2767 | 2022-11-08 18:10:59 |
| Show.js | 1085 | 2022-11-08 18:10:59 |
| upst-20220930.htm | 3109977 | 2022-11-08 18:10:59 |
| upst-20220930.xsd | 70002 | 2022-11-08 18:10:59 |
| upst-20220930_cal.xml | 89542 | 2022-11-08 18:10:59 |
| upst-20220930_def.xml | 433306 | 2022-11-08 18:10:59 |
| upst-20220930_htm.xml | 2446127 | 2022-11-08 18:10:59 |
| upst-20220930_lab.xml | 856655 | 2022-11-08 18:10:59 |
| upst-20220930_pre.xml | 644601 | 2022-11-08 18:10:59 |