Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-26-000035-index-headers.html | 2026-06-17 09:31:07 | |
| 0000799233-26-000035-index.html | 2026-06-17 09:31:07 | |
| 0000799233-26-000035.txt | 2026-06-17 09:31:07 | |
 0000799233-26-000035-xbrl.zip | 10428 | 2026-06-17 09:31:07 |
| FilingSummary.xml | 1644 | 2026-06-17 09:31:07 |
| htld-20260612.htm | 30282 | 2026-06-17 09:31:07 |
| htld-20260612.xsd | 2058 | 2026-06-17 09:31:07 |
| htld-20260612_htm.xml | 2709 | 2026-06-17 09:31:07 |
| htld-20260612_lab.xml | 22150 | 2026-06-17 09:31:07 |
| htld-20260612_pre.xml | 12633 | 2026-06-17 09:31:07 |
| htld2026q2dividendreleasee.htm | 3901 | 2026-06-17 09:31:07 |
| MetaLinks.json | 17280 | 2026-06-17 09:31:07 |
| R1.htm | 38098 | 2026-06-17 09:31:07 |
| report.css | 2766 | 2026-06-17 09:31:07 |
| Show.js | 1084 | 2026-06-17 09:31:07 |