Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001699136-22-000072-index.html | 2022-05-05 17:16:31 | |
| 0001699136-22-000072.txt | 2022-05-05 17:16:31 | |
 0001699136-22-000072-xbrl.zip | 164350 | 2022-05-05 17:16:31 |
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| R10.htm | 6173 | 2022-05-05 17:16:31 |
| R11.htm | 13173 | 2022-05-05 17:16:31 |
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| R36.htm | 44728 | 2022-05-05 17:16:31 |
| R4.htm | 86555 | 2022-05-05 17:16:31 |
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| R6.htm | 57573 | 2022-05-05 17:16:31 |
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| R9.htm | 9194 | 2022-05-05 17:16:31 |
| report.css | 2767 | 2022-05-05 17:16:31 |
| Show.js | 1085 | 2022-05-05 17:16:31 |
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| whd-20220331.xsd | 25438 | 2022-05-05 17:16:31 |
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| whd-20220331xex321.htm | 4759 | 2022-05-05 17:16:31 |
| whd-20220331xex322.htm | 4792 | 2022-05-05 17:16:31 |
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