Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046619-25-000013-index-headers.html | 2025-02-26 16:51:00 | |
| 0000046619-25-000013-index.html | 2025-02-26 16:51:00 | |
| 0000046619-25-000013.txt | 2025-02-26 16:51:00 | |
 0000046619-25-000013-xbrl.zip | 25524 | 2025-02-26 16:51:00 |
| a01312025q1ex991earningsre.htm | 162555 | 2025-02-26 16:51:00 |
| FilingSummary.xml | 2343 | 2025-02-26 16:51:00 |
| Financial_Report.xlsx | 6481 | 2025-02-26 16:51:00 |
| hei-20250226.htm | 27448 | 2025-02-26 16:51:00 |
| hei-20250226.xsd | 3168 | 2025-02-26 16:51:00 |
| hei-20250226_def.xml | 19368 | 2025-02-26 16:51:00 |
| hei-20250226_htm.xml | 4040 | 2025-02-26 16:51:00 |
| hei-20250226_lab.xml | 32659 | 2025-02-26 16:51:00 |
| hei-20250226_pre.xml | 19848 | 2025-02-26 16:51:00 |
| MetaLinks.json | 26709 | 2025-02-26 16:51:00 |
| R1.htm | 14572 | 2025-02-26 16:51:00 |
| R2.htm | 30306 | 2025-02-26 16:51:00 |
| report.css | 2767 | 2025-02-26 16:51:00 |
| Show.js | 1085 | 2025-02-26 16:51:00 |