Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001699136-21-000183-index-headers.html | 2021-11-03 17:09:24 | |
| 0001699136-21-000183-index.html | 2021-11-03 17:09:24 | |
| 0001699136-21-000183.txt | 2021-11-03 17:09:24 | |
 0001699136-21-000183-xbrl.zip | 27094 | 2021-11-03 17:09:24 |
| FilingSummary.xml | 1637 | 2021-11-03 17:09:24 |
| Financial_Report.xlsx | 5654 | 2021-11-03 17:09:24 |
| MetaLinks.json | 16554 | 2021-11-03 17:09:24 |
| R1.htm | 38564 | 2021-11-03 17:09:24 |
| report.css | 2767 | 2021-11-03 17:09:24 |
| Show.js | 1085 | 2021-11-03 17:09:24 |
 whd-20200429xex99d1g001.jpg | 2805 | 2021-11-03 17:09:24 |
| whd-2021093021xexhibit991.htm | 288476 | 2021-11-03 17:09:24 |
| whd-20211103.htm | 32840 | 2021-11-03 17:09:24 |
| whd-20211103.xsd | 1905 | 2021-11-03 17:09:24 |
| whd-20211103_htm.xml | 10562 | 2021-11-03 17:09:24 |
| whd-20211103_lab.xml | 24137 | 2021-11-03 17:09:24 |
| whd-20211103_pre.xml | 12511 | 2021-11-03 17:09:24 |