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|---|---|---|
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| 0001193125-18-266374-index.html | 2018-09-04 17:45:48 | |
| 0001193125-18-266374.txt | 2018-09-04 17:45:48 | |
 0001193125-18-266374-xbrl.zip | 39788 | 2018-09-04 17:45:48 |
 BarChart1.png | 9014 | 2018-09-04 17:45:48 |
| d611413d497.htm | 5936 | 2018-09-04 17:45:48 |
| FilingSummary.xml | 3681 | 2018-09-04 17:45:48 |
 g611413snap1.jpg | 5411 | 2018-09-04 17:45:48 |
| isust-20180820.xml | 49782 | 2018-09-04 17:45:48 |
| isust-20180820.xsd | 8419 | 2018-09-04 17:45:48 |
| isust-20180820_cal.xml | 4741 | 2018-09-04 17:45:48 |
| isust-20180820_def.xml | 188780 | 2018-09-04 17:45:48 |
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| R2.htm | 83085 | 2018-09-04 17:45:48 |
| R7.htm | 165310 | 2018-09-04 17:45:48 |
| R8.htm | 7485 | 2018-09-04 17:45:48 |
| report.css | 2767 | 2018-09-04 17:45:48 |
| Show.js | 1410 | 2018-09-04 17:45:48 |