Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-293257-index-headers.html | 2020-11-13 18:01:37 | |
| 0001193125-20-293257-index.html | 2020-11-13 18:01:37 | |
| 0001193125-20-293257.txt | 2020-11-13 18:01:37 | |
 0001193125-20-293257-xbrl.zip | 24437 | 2020-11-13 18:01:37 |
| d236182d497.htm | 6168 | 2020-11-13 18:01:37 |
| FilingSummary.xml | 3359 | 2020-11-13 18:01:37 |
| Financial_Report.xlsx | 8757 | 2020-11-13 18:01:37 |
 g236182sp1.jpg | 11851 | 2020-11-13 18:01:37 |
| ist-20201030.xml | 22999 | 2020-11-13 18:01:37 |
| ist-20201030.xsd | 4952 | 2020-11-13 18:01:37 |
| ist-20201030_def.xml | 92171 | 2020-11-13 18:01:37 |
| ist-20201030_lab.xml | 135558 | 2020-11-13 18:01:37 |
| ist-20201030_pre.xml | 79826 | 2020-11-13 18:01:37 |
| R1.htm | 18244 | 2020-11-13 18:01:37 |
| R2.htm | 6574 | 2020-11-13 18:01:37 |
| R3.htm | 30432 | 2020-11-13 18:01:37 |
| R4.htm | 3936 | 2020-11-13 18:01:37 |
| report.css | 2767 | 2020-11-13 18:01:37 |
| Show.js | 1085 | 2020-11-13 18:01:37 |