Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-19-171453-index-headers.html | 2019-06-12 17:57:12 | |
| 0001193125-19-171453-index.html | 2019-06-12 17:57:12 | |
| 0001193125-19-171453.txt | 2019-06-12 17:57:12 | |
 0001193125-19-171453-xbrl.zip | 39190 | 2019-06-12 17:57:12 |
| d749797d485bpos.htm | 29336 | 2019-06-12 17:57:12 |
| FilingSummary.xml | 3548 | 2019-06-12 17:57:12 |
| ist-20190529.xml | 33312 | 2019-06-12 17:57:12 |
| ist-20190529.xsd | 7841 | 2019-06-12 17:57:12 |
| ist-20190529_cal.xml | 4735 | 2019-06-12 17:57:12 |
| ist-20190529_def.xml | 217174 | 2019-06-12 17:57:12 |
| ist-20190529_lab.xml | 139110 | 2019-06-12 17:57:12 |
| ist-20190529_pre.xml | 166309 | 2019-06-12 17:57:12 |
| R1.htm | 18238 | 2019-06-12 17:57:12 |
| R2.htm | 58392 | 2019-06-12 17:57:12 |
| R5.htm | 93489 | 2019-06-12 17:57:12 |
| R6.htm | 7472 | 2019-06-12 17:57:12 |
| report.css | 2767 | 2019-06-12 17:57:12 |
| Show.js | 1085 | 2019-06-12 17:57:12 |