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| 0001193125-15-403929-index.html | 2015-12-15 19:57:49 | |
| 0001193125-15-403929.txt | 2015-12-15 19:57:49 | |
 0001193125-15-403929-xbrl.zip | 88715 | 2015-12-15 19:57:49 |
 BarChart1.png | 6357 | 2015-12-15 19:57:49 |
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| isust-20151123_cal.xml | 4785 | 2015-12-15 19:57:49 |
| isust-20151123_def.xml | 885355 | 2015-12-15 19:57:49 |
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| R10.htm | 65531 | 2015-12-15 19:57:49 |
| R15.htm | 142716 | 2015-12-15 19:57:49 |
| R16.htm | 66685 | 2015-12-15 19:57:49 |
| R2.htm | 52790 | 2015-12-15 19:57:49 |
| R21.htm | 150358 | 2015-12-15 19:57:49 |
| R22.htm | 7487 | 2015-12-15 19:57:49 |
| R5.htm | 88844 | 2015-12-15 19:57:49 |
| R6.htm | 53415 | 2015-12-15 19:57:49 |
| R9.htm | 89468 | 2015-12-15 19:57:49 |
| report.css | 2767 | 2015-12-15 19:57:49 |
| Show.js | 1410 | 2015-12-15 19:57:49 |