Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-202148-index-headers.html | 2021-06-28 17:02:20 | |
| 0001193125-21-202148-index.html | 2021-06-28 17:02:20 | |
| 0001193125-21-202148.txt | 2021-06-28 17:02:20 | |
 0001193125-21-202148-xbrl.zip | 32655 | 2021-06-28 17:02:20 |
| d166269d497.htm | 61054 | 2021-06-28 17:02:20 |
| d166269d497_htm.xml | 26469 | 2021-06-28 17:02:20 |
| FilingSummary.xml | 2490 | 2021-06-28 17:02:20 |
| Financial_Report.xlsx | 10025 | 2021-06-28 17:02:20 |
| isust-20210628.xsd | 3650 | 2021-06-28 17:02:20 |
| isust-20210628_def.xml | 89476 | 2021-06-28 17:02:20 |
| isust-20210628_lab.xml | 132874 | 2021-06-28 17:02:20 |
| isust-20210628_pre.xml | 77043 | 2021-06-28 17:02:20 |
| MetaLinks.json | 235131 | 2021-06-28 17:02:20 |
| R1.htm | 18262 | 2021-06-28 17:02:20 |
| R2.htm | 29404 | 2021-06-28 17:02:20 |
| report.css | 2767 | 2021-06-28 17:02:20 |
| Show.js | 1085 | 2021-06-28 17:02:20 |