Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046619-20-000004-index-headers.html | 2020-02-25 17:07:41 | |
| 0000046619-20-000004-index.html | 2020-02-25 17:07:41 | |
| 0000046619-20-000004.txt | 2020-02-25 17:07:41 | |
 0000046619-20-000004-xbrl.zip | 29349 | 2020-02-25 17:07:41 |
| FilingSummary.xml | 2457 | 2020-02-25 17:07:41 |
| Financial_Report.xlsx | 6500 | 2020-02-25 17:07:41 |
| hei-20200131.xsd | 5427 | 2020-02-25 17:07:41 |
| hei-20200131_cal.xml | 1034 | 2020-02-25 17:07:41 |
| hei-20200131_def.xml | 19126 | 2020-02-25 17:07:41 |
| hei-20200131_lab.xml | 39397 | 2020-02-25 17:07:41 |
| hei-20200131_pre.xml | 20849 | 2020-02-25 17:07:41 |
| MetaLinks.json | 27359 | 2020-02-25 17:07:41 |
| q1fy20earningsreleasee.htm | 223601 | 2020-02-25 17:07:41 |
| q1fy20form8k.htm | 55348 | 2020-02-25 17:07:41 |
| q1fy20form8k_htm.xml | 6775 | 2020-02-25 17:07:41 |
| R1.htm | 14772 | 2020-02-25 17:07:41 |
| R2.htm | 30695 | 2020-02-25 17:07:41 |
| report.css | 2767 | 2020-02-25 17:07:41 |
| Show.js | 1085 | 2020-02-25 17:07:41 |