Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046619-24-000057-index-headers.html | 2024-08-26 16:44:57 | |
| 0000046619-24-000057-index.html | 2024-08-26 16:44:57 | |
| 0000046619-24-000057.txt | 2024-08-26 16:44:57 | |
 0000046619-24-000057-xbrl.zip | 27071 | 2024-08-26 16:44:57 |
| a07312024ex991earningsrele.htm | 199813 | 2024-08-26 16:44:57 |
| FilingSummary.xml | 2184 | 2024-08-26 16:44:57 |
| Financial_Report.xlsx | 6450 | 2024-08-26 16:44:57 |
| hei-20240826.htm | 28543 | 2024-08-26 16:44:57 |
| hei-20240826.xsd | 3135 | 2024-08-26 16:44:57 |
| hei-20240826_def.xml | 19224 | 2024-08-26 16:44:57 |
| hei-20240826_htm.xml | 4040 | 2024-08-26 16:44:57 |
| hei-20240826_lab.xml | 32659 | 2024-08-26 16:44:57 |
| hei-20240826_pre.xml | 19704 | 2024-08-26 16:44:57 |
| MetaLinks.json | 25889 | 2024-08-26 16:44:57 |
| R1.htm | 14531 | 2024-08-26 16:44:57 |
| R2.htm | 30295 | 2024-08-26 16:44:57 |
| report.css | 2767 | 2024-08-26 16:44:57 |
| Show.js | 1085 | 2024-08-26 16:44:57 |