Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001564590-18-020191-index.html | 2018-08-08 07:41:20 | |
| 0001564590-18-020191.txt | 2018-08-08 07:41:20 | |
| extr-8k_20180808.htm | 24793 | 2018-08-08 07:41:20 |
| extr-ex991_7.htm | 1136903 | 2018-08-08 07:41:20 |