Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000798949-20-000025-index-headers.html | 2020-04-29 17:10:04 | |
| 0000798949-20-000025-index.html | 2020-04-29 17:10:04 | |
| 0000798949-20-000025.txt | 2020-04-29 17:10:04 | |
 0000798949-20-000025-xbrl.zip | 115485 | 2020-04-29 17:10:04 |
| FilingSummary.xml | 1938 | 2020-04-29 17:10:04 |
| Financial_Report.xlsx | 7031 | 2020-04-29 17:10:04 |
| MetaLinks.json | 27589 | 2020-04-29 17:10:04 |
| R1.htm | 64211 | 2020-04-29 17:10:04 |
| report.css | 2767 | 2020-04-29 17:10:04 |
| Show.js | 1085 | 2020-04-29 17:10:04 |
| unt-20191231.htm | 1391672 | 2020-04-29 17:10:04 |
| unt-20191231.xsd | 2980 | 2020-04-29 17:10:04 |
| unt-20191231x10kaxexx3.htm | 4448 | 2020-04-29 17:10:04 |
| unt-20191231x10kaxexx31.htm | 4322 | 2020-04-29 17:10:04 |
| unt-20191231_cal.xml | 854 | 2020-04-29 17:10:04 |
| unt-20191231_def.xml | 1838 | 2020-04-29 17:10:04 |
 unt-20191231_g1.jpg | 13982 | 2020-04-29 17:10:04 |
| unt-20191231_htm.xml | 20287 | 2020-04-29 17:10:04 |
| unt-20191231_lab.xml | 36342 | 2020-04-29 17:10:04 |
| unt-20191231_pre.xml | 20030 | 2020-04-29 17:10:04 |