Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-042061-index-headers.html | 2021-02-12 19:09:08 | |
| 0001193125-21-042061-index.html | 2021-02-12 19:09:08 | |
| 0001193125-21-042061.txt | 2021-02-12 19:09:08 | |
 0001193125-21-042061-xbrl.zip | 44700 | 2021-02-12 19:09:08 |
 BarChart1.png | 7247 | 2021-02-12 19:09:08 |
| d114210d497.htm | 5229 | 2021-02-12 19:09:08 |
| FilingSummary.xml | 3680 | 2021-02-12 19:09:08 |
 g114210g49l08.jpg | 10817 | 2021-02-12 19:09:08 |
| isust-20210201.xml | 57807 | 2021-02-12 19:09:08 |
| isust-20210201.xsd | 8421 | 2021-02-12 19:09:08 |
| isust-20210201_cal.xml | 4752 | 2021-02-12 19:09:08 |
| isust-20210201_def.xml | 220456 | 2021-02-12 19:09:08 |
| isust-20210201_lab.xml | 145706 | 2021-02-12 19:09:08 |
| isust-20210201_pre.xml | 170021 | 2021-02-12 19:09:08 |
| R1.htm | 18255 | 2021-02-12 19:09:08 |
| R2.htm | 95264 | 2021-02-12 19:09:08 |
| R7.htm | 176876 | 2021-02-12 19:09:08 |
| R8.htm | 3936 | 2021-02-12 19:09:08 |
| report.css | 2767 | 2021-02-12 19:09:08 |
| Show.js | 1085 | 2021-02-12 19:09:08 |