Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046765-20-000025-index-headers.html | 2020-09-09 16:55:23 | |
| 0000046765-20-000025-index.html | 2020-09-09 16:55:23 | |
| 0000046765-20-000025.txt | 2020-09-09 16:55:23 | |
 0000046765-20-000025-xbrl.zip | 12528 | 2020-09-09 16:55:23 |
| FilingSummary.xml | 1681 | 2020-09-09 16:55:23 |
| Financial_Report.xlsx | 5455 | 2020-09-09 16:55:23 |
| hp-20200909.xsd | 4425 | 2020-09-09 16:55:23 |
| hp-202009098xk.htm | 36128 | 2020-09-09 16:55:23 |
| hp-202009098xk_htm.xml | 4538 | 2020-09-09 16:55:23 |
| hp-20200909_cal.xml | 612 | 2020-09-09 16:55:23 |
| hp-20200909_def.xml | 1462 | 2020-09-09 16:55:23 |
| hp-20200909_lab.xml | 26142 | 2020-09-09 16:55:23 |
| hp-20200909_pre.xml | 13568 | 2020-09-09 16:55:23 |
| MetaLinks.json | 18235 | 2020-09-09 16:55:23 |
| R1.htm | 38606 | 2020-09-09 16:55:23 |
| report.css | 2767 | 2020-09-09 16:55:23 |
| Show.js | 1085 | 2020-09-09 16:55:23 |