Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046765-21-000046-index-headers.html | 2021-12-10 16:33:43 | |
| 0000046765-21-000046-index.html | 2021-12-10 16:33:43 | |
| 0000046765-21-000046.txt | 2021-12-10 16:33:43 | |
 0000046765-21-000046-xbrl.zip | 10063 | 2021-12-10 16:33:43 |
| FilingSummary.xml | 1593 | 2021-12-10 16:33:43 |
| Financial_Report.xlsx | 5676 | 2021-12-10 16:33:43 |
| hp-20211210.htm | 29172 | 2021-12-10 16:33:43 |
| hp-20211210.xsd | 1900 | 2021-12-10 16:33:43 |
| hp-20211210_htm.xml | 10567 | 2021-12-10 16:33:43 |
| hp-20211210_lab.xml | 24137 | 2021-12-10 16:33:43 |
| hp-20211210_pre.xml | 12512 | 2021-12-10 16:33:43 |
| MetaLinks.json | 16528 | 2021-12-10 16:33:43 |
| R1.htm | 38571 | 2021-12-10 16:33:43 |
| report.css | 2766 | 2021-12-10 16:33:43 |
| Show.js | 1084 | 2021-12-10 16:33:43 |