Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-26-000023-index-headers.html | 2026-04-21 17:49:43 | |
| 0000799233-26-000023-index.html | 2026-04-21 17:49:43 | |
| 0000799233-26-000023.txt | 2026-04-21 17:49:43 | |
 0000799233-26-000023-xbrl.zip | 8866 | 2026-04-21 17:49:43 |
| FilingSummary.xml | 1644 | 2026-04-21 17:49:43 |
| htld-20260416.htm | 26388 | 2026-04-21 17:49:43 |
| htld-20260416.xsd | 2058 | 2026-04-21 17:49:43 |
| htld-20260416_htm.xml | 2709 | 2026-04-21 17:49:43 |
| htld-20260416_lab.xml | 22150 | 2026-04-21 17:49:43 |
| htld-20260416_pre.xml | 12633 | 2026-04-21 17:49:43 |
| MetaLinks.json | 17280 | 2026-04-21 17:49:43 |
| R1.htm | 38098 | 2026-04-21 17:49:43 |
| report.css | 2766 | 2026-04-21 17:49:43 |
| Show.js | 1084 | 2026-04-21 17:49:43 |