Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046619-25-000058-index-headers.html | 2025-08-08 15:36:04 | |
| 0000046619-25-000058-index.html | 2025-08-08 15:36:04 | |
| 0000046619-25-000058.txt | 2025-08-08 15:36:04 | |
 0000046619-25-000058-xbrl.zip | 13748 | 2025-08-08 15:36:04 |
| FilingSummary.xml | 2341 | 2025-08-08 15:36:04 |
| hei-20250805.htm | 25753 | 2025-08-08 15:36:04 |
| hei-20250805.xsd | 3168 | 2025-08-08 15:36:04 |
| hei-20250805_def.xml | 19368 | 2025-08-08 15:36:04 |
| hei-20250805_htm.xml | 4040 | 2025-08-08 15:36:04 |
| hei-20250805_lab.xml | 32659 | 2025-08-08 15:36:04 |
| hei-20250805_pre.xml | 19848 | 2025-08-08 15:36:04 |
| MetaLinks.json | 26709 | 2025-08-08 15:36:04 |
| R1.htm | 14557 | 2025-08-08 15:36:04 |
| R2.htm | 30290 | 2025-08-08 15:36:04 |
| report.css | 2767 | 2025-08-08 15:36:04 |
| Show.js | 1084 | 2025-08-08 15:36:04 |