Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046765-22-000016-index-headers.html | 2022-03-02 16:40:22 | |
| 0000046765-22-000016-index.html | 2022-03-02 16:40:22 | |
| 0000046765-22-000016.txt | 2022-03-02 16:40:22 | |
 0000046765-22-000016-xbrl.zip | 11877 | 2022-03-02 16:40:22 |
| FilingSummary.xml | 1607 | 2022-03-02 16:40:22 |
| Financial_Report.xlsx | 5680 | 2022-03-02 16:40:22 |
| hp-20220301.htm | 55804 | 2022-03-02 16:40:22 |
| hp-20220301.xsd | 1900 | 2022-03-02 16:40:22 |
| hp-20220301_htm.xml | 10567 | 2022-03-02 16:40:22 |
| hp-20220301_lab.xml | 24137 | 2022-03-02 16:40:22 |
| hp-20220301_pre.xml | 12512 | 2022-03-02 16:40:22 |
| MetaLinks.json | 16529 | 2022-03-02 16:40:22 |
| R1.htm | 38574 | 2022-03-02 16:40:22 |
| report.css | 2766 | 2022-03-02 16:40:22 |
| Show.js | 1084 | 2022-03-02 16:40:22 |