Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-18-014881-index-headers.html | 2018-01-19 17:17:02 | |
| 0001193125-18-014881-index.html | 2018-01-19 17:17:02 | |
| 0001193125-18-014881.txt | 2018-01-19 17:17:02 | |
 0001193125-18-014881-xbrl.zip | 22734 | 2018-01-19 17:17:02 |
| d524396d497.htm | 1131 | 2018-01-19 17:17:02 |
| FilingSummary.xml | 3566 | 2018-01-19 17:17:02 |
| Financial_Report.xlsx | 8400 | 2018-01-19 17:17:02 |
 g524396g0119070805009.jpg | 2194 | 2018-01-19 17:17:02 |
| gst-20171218.xml | 14928 | 2018-01-19 17:17:02 |
| gst-20171218.xsd | 4232 | 2018-01-19 17:17:02 |
| gst-20171218_def.xml | 85522 | 2018-01-19 17:17:02 |
| gst-20171218_lab.xml | 121742 | 2018-01-19 17:17:02 |
| gst-20171218_pre.xml | 74375 | 2018-01-19 17:17:02 |
| R1.htm | 16187 | 2018-01-19 17:17:02 |
| R2.htm | 7625 | 2018-01-19 17:17:02 |
| R3.htm | 20440 | 2018-01-19 17:17:02 |
| R4.htm | 7480 | 2018-01-19 17:17:02 |
| report.css | 2767 | 2018-01-19 17:17:02 |
| Show.js | 1410 | 2018-01-19 17:17:02 |