Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000046619-24-000109-index.html | 2024-12-17 16:58:17 | |
| 0000046619-24-000109.txt | 2024-12-17 16:58:17 | |
 0000046619-24-000109-xbrl.zip | 27860 | 2024-12-17 16:58:17 |
| a10312024ex991earningsrele.htm | 198435 | 2024-12-17 16:58:17 |
| FilingSummary.xml | 2181 | 2024-12-17 16:58:17 |
| Financial_Report.xlsx | 6448 | 2024-12-17 16:58:17 |
| hei-20241217.htm | 29172 | 2024-12-17 16:58:17 |
| hei-20241217.xsd | 3016 | 2024-12-17 16:58:17 |
| hei-20241217_def.xml | 19224 | 2024-12-17 16:58:17 |
| hei-20241217_htm.xml | 4040 | 2024-12-17 16:58:17 |
| hei-20241217_lab.xml | 32659 | 2024-12-17 16:58:17 |
| hei-20241217_pre.xml | 19704 | 2024-12-17 16:58:17 |
| MetaLinks.json | 25889 | 2024-12-17 16:58:17 |
| R1.htm | 14527 | 2024-12-17 16:58:17 |
| R2.htm | 30291 | 2024-12-17 16:58:17 |
| report.css | 2767 | 2024-12-17 16:58:17 |
| Show.js | 1085 | 2024-12-17 16:58:17 |