Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-18-028629-index-headers.html | 2018-11-08 17:01:52 | |
| 0001564590-18-028629-index.html | 2018-11-08 17:01:52 | |
| 0001564590-18-028629.txt | 2018-11-08 17:01:52 | |
 0001564590-18-028629-xbrl.zip | 142892 | 2018-11-08 17:01:52 |
| FilingSummary.xml | 40796 | 2018-11-08 17:01:52 |
| Financial_Report.xlsx | 73158 | 2018-11-08 17:01:52 |
| R1.htm | 27423 | 2018-11-08 17:01:52 |
| R10.htm | 30006 | 2018-11-08 17:01:52 |
| R11.htm | 46075 | 2018-11-08 17:01:52 |
| R12.htm | 45487 | 2018-11-08 17:01:52 |
| R13.htm | 23413 | 2018-11-08 17:01:52 |
| R14.htm | 29867 | 2018-11-08 17:01:52 |
| R15.htm | 113120 | 2018-11-08 17:01:52 |
| R16.htm | 85842 | 2018-11-08 17:01:52 |
| R17.htm | 119517 | 2018-11-08 17:01:52 |
| R18.htm | 6494 | 2018-11-08 17:01:52 |
| R19.htm | 80635 | 2018-11-08 17:01:52 |
| R2.htm | 65940 | 2018-11-08 17:01:52 |
| R20.htm | 45748 | 2018-11-08 17:01:52 |
| R21.htm | 62536 | 2018-11-08 17:01:52 |
| R22.htm | 146188 | 2018-11-08 17:01:52 |
| R23.htm | 22728 | 2018-11-08 17:01:52 |
| R24.htm | 43883 | 2018-11-08 17:01:52 |
| R25.htm | 46857 | 2018-11-08 17:01:52 |
| R26.htm | 19692 | 2018-11-08 17:01:52 |
| R27.htm | 33984 | 2018-11-08 17:01:52 |
| R28.htm | 113184 | 2018-11-08 17:01:52 |
| R29.htm | 88466 | 2018-11-08 17:01:52 |
| R3.htm | 28288 | 2018-11-08 17:01:52 |
| R30.htm | 119473 | 2018-11-08 17:01:52 |
| R31.htm | 75634 | 2018-11-08 17:01:52 |
| R32.htm | 4155 | 2018-11-08 17:01:52 |
| R33.htm | 27870 | 2018-11-08 17:01:52 |
| R34.htm | 9847 | 2018-11-08 17:01:52 |
| R35.htm | 7635 | 2018-11-08 17:01:52 |
| R36.htm | 18967 | 2018-11-08 17:01:52 |
| R37.htm | 20536 | 2018-11-08 17:01:52 |
| R38.htm | 18995 | 2018-11-08 17:01:52 |
| R39.htm | 13232 | 2018-11-08 17:01:52 |
| R4.htm | 48294 | 2018-11-08 17:01:52 |
| R40.htm | 14941 | 2018-11-08 17:01:52 |
| R41.htm | 57009 | 2018-11-08 17:01:52 |
| R42.htm | 19674 | 2018-11-08 17:01:52 |
| R43.htm | 22423 | 2018-11-08 17:01:52 |
| R44.htm | 35430 | 2018-11-08 17:01:52 |
| R45.htm | 53862 | 2018-11-08 17:01:52 |
| R46.htm | 32258 | 2018-11-08 17:01:52 |
| R47.htm | 38458 | 2018-11-08 17:01:52 |
| R48.htm | 15405 | 2018-11-08 17:01:52 |
| R49.htm | 6316 | 2018-11-08 17:01:52 |
| R5.htm | 84341 | 2018-11-08 17:01:52 |
| R50.htm | 15385 | 2018-11-08 17:01:52 |
| R51.htm | 37514 | 2018-11-08 17:01:52 |
| R52.htm | 27208 | 2018-11-08 17:01:52 |
| R53.htm | 15730 | 2018-11-08 17:01:52 |
| R54.htm | 17383 | 2018-11-08 17:01:52 |
| R55.htm | 15570 | 2018-11-08 17:01:52 |
| R56.htm | 20229 | 2018-11-08 17:01:52 |
| R57.htm | 10434 | 2018-11-08 17:01:52 |
| R58.htm | 22949 | 2018-11-08 17:01:52 |
| R59.htm | 8439 | 2018-11-08 17:01:52 |
| R6.htm | 6614 | 2018-11-08 17:01:52 |
| R60.htm | 57198 | 2018-11-08 17:01:52 |
| R61.htm | 45170 | 2018-11-08 17:01:52 |
| R7.htm | 31421 | 2018-11-08 17:01:52 |
| R8.htm | 69767 | 2018-11-08 17:01:52 |
| R9.htm | 142764 | 2018-11-08 17:01:52 |
| report.css | 2767 | 2018-11-08 17:01:52 |
| Show.js | 1085 | 2018-11-08 17:01:52 |
| upwk-10q_20180930.htm | 2552761 | 2018-11-08 17:01:52 |
| upwk-20180930.xml | 1888773 | 2018-11-08 17:01:52 |
| upwk-20180930.xsd | 57391 | 2018-11-08 17:01:52 |
| upwk-20180930_cal.xml | 50180 | 2018-11-08 17:01:52 |
| upwk-20180930_def.xml | 192594 | 2018-11-08 17:01:52 |
| upwk-20180930_lab.xml | 406930 | 2018-11-08 17:01:52 |
| upwk-20180930_pre.xml | 349035 | 2018-11-08 17:01:52 |
| upwk-ex311_9.htm | 17926 | 2018-11-08 17:01:52 |
| upwk-ex312_8.htm | 18071 | 2018-11-08 17:01:52 |
| upwk-ex31_91.htm | 44769 | 2018-11-08 17:01:52 |
| upwk-ex321_6.htm | 9611 | 2018-11-08 17:01:52 |
| upwk-ex322_7.htm | 9749 | 2018-11-08 17:01:52 |
| upwk-ex32_90.htm | 349722 | 2018-11-08 17:01:52 |