Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-18-069085-index-headers.html | 2018-03-02 17:57:40 | |
| 0001193125-18-069085-index.html | 2018-03-02 17:57:40 | |
| 0001193125-18-069085.txt | 2018-03-02 17:57:40 | |
 0001193125-18-069085-xbrl.zip | 24986 | 2018-03-02 17:57:40 |
| d510807d497.htm | 4728 | 2018-03-02 17:57:40 |
| FilingSummary.xml | 3418 | 2018-03-02 17:57:40 |
| Financial_Report.xlsx | 10204 | 2018-03-02 17:57:40 |
 g510807g24f08.jpg | 15059 | 2018-03-02 17:57:40 |
| ist-20180216.xml | 29099 | 2018-03-02 17:57:40 |
| ist-20180216.xsd | 4076 | 2018-03-02 17:57:40 |
| ist-20180216_def.xml | 84630 | 2018-03-02 17:57:40 |
| ist-20180216_lab.xml | 121716 | 2018-03-02 17:57:40 |
| ist-20180216_pre.xml | 74171 | 2018-03-02 17:57:40 |
| R1.htm | 16182 | 2018-03-02 17:57:40 |
| R2.htm | 14289 | 2018-03-02 17:57:40 |
| R3.htm | 33741 | 2018-03-02 17:57:40 |
| R4.htm | 7475 | 2018-03-02 17:57:40 |
| report.css | 2767 | 2018-03-02 17:57:40 |
| Show.js | 1410 | 2018-03-02 17:57:40 |