Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001699136-22-000132-index-headers.html | 2022-08-04 07:00:36 | |
| 0001699136-22-000132-index.html | 2022-08-04 07:00:36 | |
| 0001699136-22-000132.txt | 2022-08-04 07:00:36 | |
 0001699136-22-000132-xbrl.zip | 27158 | 2022-08-04 07:00:36 |
| FilingSummary.xml | 1648 | 2022-08-04 07:00:36 |
| Financial_Report.xlsx | 5680 | 2022-08-04 07:00:36 |
| MetaLinks.json | 16552 | 2022-08-04 07:00:36 |
| R1.htm | 38533 | 2022-08-04 07:00:36 |
| report.css | 2767 | 2022-08-04 07:00:36 |
| Show.js | 1085 | 2022-08-04 07:00:36 |
 whd-20200429xex99d1g001.jpg | 2805 | 2022-08-04 07:00:36 |
| whd-2022063022xexhibit991.htm | 301791 | 2022-08-04 07:00:36 |
| whd-20220804.htm | 32828 | 2022-08-04 07:00:36 |
| whd-20220804.xsd | 1905 | 2022-08-04 07:00:36 |
| whd-20220804_htm.xml | 10562 | 2022-08-04 07:00:36 |
| whd-20220804_lab.xml | 24137 | 2022-08-04 07:00:36 |
| whd-20220804_pre.xml | 12511 | 2022-08-04 07:00:36 |