Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-15-292023-index-headers.html | 2015-08-14 17:54:44 | |
| 0001193125-15-292023-index.html | 2015-08-14 17:54:44 | |
| 0001193125-15-292023.txt | 2015-08-14 17:54:44 | |
 0001193125-15-292023-xbrl.zip | 57247 | 2015-08-14 17:54:44 |
 BarChart1.png | 7076 | 2015-08-14 17:54:44 |
 BarChart2.png | 6317 | 2015-08-14 17:54:44 |
| d74256d497.htm | 3346 | 2015-08-14 17:54:44 |
| FilingSummary.xml | 4437 | 2015-08-14 17:54:44 |
| isust-20150731.xml | 76743 | 2015-08-14 17:54:44 |
| isust-20150731.xsd | 13661 | 2015-08-14 17:54:44 |
| isust-20150731_cal.xml | 4823 | 2015-08-14 17:54:44 |
| isust-20150731_def.xml | 450453 | 2015-08-14 17:54:44 |
| isust-20150731_lab.xml | 140299 | 2015-08-14 17:54:44 |
| isust-20150731_pre.xml | 309951 | 2015-08-14 17:54:44 |
| R1.htm | 16442 | 2015-08-14 17:54:44 |
| R13.htm | 147727 | 2015-08-14 17:54:44 |
| R14.htm | 7661 | 2015-08-14 17:54:44 |
| R2.htm | 73602 | 2015-08-14 17:54:44 |
| R7.htm | 150816 | 2015-08-14 17:54:44 |
| R8.htm | 72940 | 2015-08-14 17:54:44 |
| report.css | 2766 | 2015-08-14 17:54:44 |
| Show.js | 1410 | 2015-08-14 17:54:44 |