Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-293333-index-headers.html | 2020-11-13 18:10:05 | |
| 0001193125-20-293333-index.html | 2020-11-13 18:10:05 | |
| 0001193125-20-293333.txt | 2020-11-13 18:10:05 | |
 0001193125-20-293333-xbrl.zip | 24008 | 2020-11-13 18:10:05 |
| d28059d497.htm | 6338 | 2020-11-13 18:10:05 |
| FilingSummary.xml | 3368 | 2020-11-13 18:10:05 |
| Financial_Report.xlsx | 8305 | 2020-11-13 18:10:05 |
 g28059snap0001.jpg | 4801 | 2020-11-13 18:10:05 |
| ist1-20201030.xml | 18509 | 2020-11-13 18:10:05 |
| ist1-20201030.xsd | 5336 | 2020-11-13 18:10:05 |
| ist1-20201030_def.xml | 92832 | 2020-11-13 18:10:05 |
| ist1-20201030_lab.xml | 138212 | 2020-11-13 18:10:05 |
| ist1-20201030_pre.xml | 80553 | 2020-11-13 18:10:05 |
| R1.htm | 18244 | 2020-11-13 18:10:05 |
| R2.htm | 4717 | 2020-11-13 18:10:05 |
| R3.htm | 27378 | 2020-11-13 18:10:05 |
| R4.htm | 3936 | 2020-11-13 18:10:05 |
| report.css | 2767 | 2020-11-13 18:10:05 |
| Show.js | 1085 | 2020-11-13 18:10:05 |