Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-18-194712-index-headers.html | 2018-06-15 18:06:11 | |
| 0001193125-18-194712-index.html | 2018-06-15 18:06:11 | |
| 0001193125-18-194712.txt | 2018-06-15 18:06:11 | |
 0001193125-18-194712-xbrl.zip | 23103 | 2018-06-15 18:06:11 |
| d583162d497.htm | 4215 | 2018-06-15 18:06:11 |
| FilingSummary.xml | 3600 | 2018-06-15 18:06:11 |
| Financial_Report.xlsx | 8429 | 2018-06-15 18:06:11 |
 g583162g0614090007648.jpg | 4085 | 2018-06-15 18:06:11 |
| isust-20180601.xml | 18186 | 2018-06-15 18:06:11 |
| isust-20180601.xsd | 4244 | 2018-06-15 18:06:11 |
| isust-20180601_def.xml | 85612 | 2018-06-15 18:06:11 |
| isust-20180601_lab.xml | 121036 | 2018-06-15 18:06:11 |
| isust-20180601_pre.xml | 74395 | 2018-06-15 18:06:11 |
| R1.htm | 16193 | 2018-06-15 18:06:11 |
| R2.htm | 9019 | 2018-06-15 18:06:11 |
| R3.htm | 23247 | 2018-06-15 18:06:11 |
| R4.htm | 7485 | 2018-06-15 18:06:11 |
| report.css | 2767 | 2018-06-15 18:06:11 |
| Show.js | 1410 | 2018-06-15 18:06:11 |