Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046765-20-000034-index-headers.html | 2020-12-11 16:43:21 | |
| 0000046765-20-000034-index.html | 2020-12-11 16:43:21 | |
| 0000046765-20-000034.txt | 2020-12-11 16:43:21 | |
 0000046765-20-000034-xbrl.zip | 11214 | 2020-12-11 16:43:21 |
| FilingSummary.xml | 1672 | 2020-12-11 16:43:21 |
| Financial_Report.xlsx | 5457 | 2020-12-11 16:43:21 |
| hp-20201211.htm | 29124 | 2020-12-11 16:43:21 |
| hp-20201211.xsd | 2417 | 2020-12-11 16:43:21 |
| hp-20201211_cal.xml | 714 | 2020-12-11 16:43:21 |
| hp-20201211_def.xml | 1651 | 2020-12-11 16:43:21 |
| hp-20201211_htm.xml | 10533 | 2020-12-11 16:43:21 |
| hp-20201211_lab.xml | 24275 | 2020-12-11 16:43:21 |
| hp-20201211_pre.xml | 12650 | 2020-12-11 16:43:21 |
| MetaLinks.json | 17265 | 2020-12-11 16:43:21 |
| R1.htm | 38610 | 2020-12-11 16:43:21 |
| report.css | 2767 | 2020-12-11 16:43:21 |
| Show.js | 1085 | 2020-12-11 16:43:21 |