Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-262362-index-headers.html | 2021-08-31 19:24:57 | |
| 0001193125-21-262362-index.html | 2021-08-31 19:24:57 | |
| 0001193125-21-262362.txt | 2021-08-31 19:24:57 | |
 0001193125-21-262362-xbrl.zip | 29707 | 2021-08-31 19:24:57 |
| d180659d497.htm | 304871 | 2021-08-31 19:24:57 |
| d180659d497_htm.xml | 218513 | 2021-08-31 19:24:57 |
| FilingSummary.xml | 3381 | 2021-08-31 19:24:57 |
| Financial_Report.xlsx | 11993 | 2021-08-31 19:24:57 |
| ist-20210901.xsd | 5518 | 2021-08-31 19:24:57 |
| ist-20210901_cal.xml | 1374 | 2021-08-31 19:24:57 |
| ist-20210901_def.xml | 32727 | 2021-08-31 19:24:57 |
| ist-20210901_lab.xml | 23191 | 2021-08-31 19:24:57 |
| ist-20210901_pre.xml | 31051 | 2021-08-31 19:24:57 |
| MetaLinks.json | 44335 | 2021-08-31 19:24:57 |
| R1.htm | 18253 | 2021-08-31 19:24:57 |
| R2.htm | 96934 | 2021-08-31 19:24:57 |
| R3.htm | 211130 | 2021-08-31 19:24:57 |
| R4.htm | 7480 | 2021-08-31 19:24:57 |
| report.css | 2767 | 2021-08-31 19:24:57 |
| Show.js | 1085 | 2021-08-31 19:24:57 |