Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-19-081846-index-headers.html | 2019-03-21 12:11:42 | |
| 0001193125-19-081846-index.html | 2019-03-21 12:11:42 | |
| 0001193125-19-081846.txt | 2019-03-21 12:11:42 | |
 0001193125-19-081846-xbrl.zip | 23771 | 2019-03-21 12:11:42 |
| d712483d497.htm | 1137 | 2019-03-21 12:11:42 |
| FilingSummary.xml | 3564 | 2019-03-21 12:11:42 |
| Financial_Report.xlsx | 7731 | 2019-03-21 12:11:42 |
 g712483g0321054426376.jpg | 2194 | 2019-03-21 12:11:42 |
| gst-20190228.xml | 9815 | 2019-03-21 12:11:42 |
| gst-20190228.xsd | 4036 | 2019-03-21 12:11:42 |
| gst-20190228_def.xml | 92065 | 2019-03-21 12:11:42 |
| gst-20190228_lab.xml | 128002 | 2019-03-21 12:11:42 |
| gst-20190228_pre.xml | 78973 | 2019-03-21 12:11:42 |
| R1.htm | 18244 | 2019-03-21 12:11:42 |
| R2.htm | 5690 | 2019-03-21 12:11:42 |
| R3.htm | 16364 | 2019-03-21 12:11:42 |
| R4.htm | 7480 | 2019-03-21 12:11:42 |
| report.css | 2767 | 2019-03-21 12:11:42 |
| Show.js | 1085 | 2019-03-21 12:11:42 |