Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046619-22-000064-index-headers.html | 2022-12-19 16:42:16 | |
| 0000046619-22-000064-index.html | 2022-12-19 16:42:16 | |
| 0000046619-22-000064.txt | 2022-12-19 16:42:16 | |
 0000046619-22-000064-xbrl.zip | 28842 | 2022-12-19 16:42:16 |
| a10312022q4earningsrelease.htm | 188266 | 2022-12-19 16:42:16 |
| FilingSummary.xml | 2356 | 2022-12-19 16:42:16 |
| Financial_Report.xlsx | 6477 | 2022-12-19 16:42:16 |
| hei-20221219.htm | 40325 | 2022-12-19 16:42:16 |
| hei-20221219.xsd | 3283 | 2022-12-19 16:42:16 |
| hei-20221219_def.xml | 19530 | 2022-12-19 16:42:16 |
| hei-20221219_htm.xml | 14185 | 2022-12-19 16:42:16 |
| hei-20221219_lab.xml | 36136 | 2022-12-19 16:42:16 |
| hei-20221219_pre.xml | 19846 | 2022-12-19 16:42:16 |
| MetaLinks.json | 26792 | 2022-12-19 16:42:16 |
| R1.htm | 14572 | 2022-12-19 16:42:16 |
| R2.htm | 30305 | 2022-12-19 16:42:16 |
| report.css | 2767 | 2022-12-19 16:42:16 |
| Show.js | 1085 | 2022-12-19 16:42:16 |