Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046619-23-000123-index-headers.html | 2023-08-28 17:05:11 | |
| 0000046619-23-000123-index.html | 2023-08-28 17:05:11 | |
| 0000046619-23-000123.txt | 2023-08-28 17:05:11 | |
 0000046619-23-000123-xbrl.zip | 28025 | 2023-08-28 17:05:11 |
| a07312023ex991earningsrele.htm | 199708 | 2023-08-28 17:05:11 |
| FilingSummary.xml | 2196 | 2023-08-28 17:05:11 |
| Financial_Report.xlsx | 6450 | 2023-08-28 17:05:11 |
| hei-20230828.htm | 29886 | 2023-08-28 17:05:11 |
| hei-20230828.xsd | 3135 | 2023-08-28 17:05:11 |
| hei-20230828_def.xml | 19224 | 2023-08-28 17:05:11 |
| hei-20230828_htm.xml | 4040 | 2023-08-28 17:05:11 |
| hei-20230828_lab.xml | 36138 | 2023-08-28 17:05:11 |
| hei-20230828_pre.xml | 19704 | 2023-08-28 17:05:11 |
| MetaLinks.json | 25836 | 2023-08-28 17:05:11 |
| R1.htm | 14529 | 2023-08-28 17:05:11 |
| R2.htm | 30292 | 2023-08-28 17:05:11 |
| report.css | 2767 | 2023-08-28 17:05:11 |
| Show.js | 1085 | 2023-08-28 17:05:11 |