Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-25-000055-index-headers.html | 2025-12-18 18:33:13 | |
| 0000799233-25-000055-index.html | 2025-12-18 18:33:13 | |
| 0000799233-25-000055.txt | 2025-12-18 18:33:13 | |
 0000799233-25-000055-xbrl.zip | 10437 | 2025-12-18 18:33:13 |
| FilingSummary.xml | 1644 | 2025-12-18 18:33:13 |
| htld-20251216.htm | 30298 | 2025-12-18 18:33:13 |
| htld-20251216.xsd | 2058 | 2025-12-18 18:33:13 |
| htld-20251216_htm.xml | 2709 | 2025-12-18 18:33:13 |
| htld-20251216_lab.xml | 22150 | 2025-12-18 18:33:13 |
| htld-20251216_pre.xml | 12633 | 2025-12-18 18:33:13 |
| htld2025q4dividendreleasee.htm | 3940 | 2025-12-18 18:33:13 |
| MetaLinks.json | 17280 | 2025-12-18 18:33:13 |
| R1.htm | 38098 | 2025-12-18 18:33:13 |
| report.css | 2766 | 2025-12-18 18:33:13 |
| Show.js | 1084 | 2025-12-18 18:33:13 |