Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-19-229280-index-headers.html | 2019-08-26 16:06:09 | |
| 0001193125-19-229280-index.html | 2019-08-26 16:06:09 | |
| 0001193125-19-229280.txt | 2019-08-26 16:06:09 | |
 0001193125-19-229280-xbrl.zip | 8572 | 2019-08-26 16:06:09 |
| d789720d8k.htm | 26502 | 2019-08-26 16:06:09 |
| d789720d8k_htm.xml | 3277 | 2019-08-26 16:06:09 |
| extr-20190822.xsd | 3090 | 2019-08-26 16:06:09 |
| extr-20190822_lab.xml | 17373 | 2019-08-26 16:06:09 |
| extr-20190822_pre.xml | 10966 | 2019-08-26 16:06:09 |
| FilingSummary.xml | 1699 | 2019-08-26 16:06:09 |
| Financial_Report.xlsx | 5790 | 2019-08-26 16:06:09 |
| MetaLinks.json | 18412 | 2019-08-26 16:06:09 |
| R1.htm | 38615 | 2019-08-26 16:06:09 |
| report.css | 2766 | 2019-08-26 16:06:09 |
| Show.js | 1084 | 2019-08-26 16:06:09 |