Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-25-000042-index-headers.html | 2025-07-29 07:55:33 | |
| 0000799233-25-000042-index.html | 2025-07-29 07:55:33 | |
| 0000799233-25-000042.txt | 2025-07-29 07:55:33 | |
 0000799233-25-000042-xbrl.zip | 20990 | 2025-07-29 07:55:33 |
| FilingSummary.xml | 1630 | 2025-07-29 07:55:33 |
| htld-20250724.htm | 29558 | 2025-07-29 07:55:33 |
| htld-20250724.xsd | 1809 | 2025-07-29 07:55:33 |
| htld-20250724_htm.xml | 3380 | 2025-07-29 07:55:33 |
| htld-20250724_lab.xml | 21629 | 2025-07-29 07:55:33 |
| htld-20250724_pre.xml | 12526 | 2025-07-29 07:55:33 |
| htld2025q2earningsrelease.htm | 211204 | 2025-07-29 07:55:33 |
| MetaLinks.json | 17095 | 2025-07-29 07:55:33 |
| R1.htm | 38062 | 2025-07-29 07:55:33 |
| report.css | 2766 | 2025-07-29 07:55:33 |
| Show.js | 1084 | 2025-07-29 07:55:33 |