Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001688476-20-000043-index-headers.html | 2020-05-05 16:42:26 | |
| 0001688476-20-000043-index.html | 2020-05-05 16:42:26 | |
| 0001688476-20-000043.txt | 2020-05-05 16:42:26 | |
 0001688476-20-000043-xbrl.zip | 44394 | 2020-05-05 16:42:26 |
| exhibit991earningsrele.htm | 594738 | 2020-05-05 16:42:26 |
| FilingSummary.xml | 1758 | 2020-05-05 16:42:26 |
| Financial_Report.xlsx | 5778 | 2020-05-05 16:42:26 |
| frac-20200331.xsd | 4432 | 2020-05-05 16:42:26 |
| frac-20200331_cal.xml | 612 | 2020-05-05 16:42:26 |
| frac-20200331_def.xml | 1462 | 2020-05-05 16:42:26 |
| frac-20200331_lab.xml | 26142 | 2020-05-05 16:42:26 |
| frac-20200331_pre.xml | 13568 | 2020-05-05 16:42:26 |
| MetaLinks.json | 18225 | 2020-05-05 16:42:26 |
 nextierlogoa06.jpg | 8695 | 2020-05-05 16:42:26 |
| q12020earningsrelease8.htm | 70598 | 2020-05-05 16:42:26 |
| q12020earningsrelease8_htm.xml | 4210 | 2020-05-05 16:42:26 |
| R1.htm | 38597 | 2020-05-05 16:42:26 |
| report.css | 2767 | 2020-05-05 16:42:26 |
| Show.js | 1084 | 2020-05-05 16:42:26 |