Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-24-000046-index-headers.html | 2024-12-20 18:25:12 | |
| 0000799233-24-000046-index.html | 2024-12-20 18:25:12 | |
| 0000799233-24-000046.txt | 2024-12-20 18:25:12 | |
 0000799233-24-000046-xbrl.zip | 10521 | 2024-12-20 18:25:12 |
| FilingSummary.xml | 1644 | 2024-12-20 18:25:12 |
| Financial_Report.xlsx | 5688 | 2024-12-20 18:25:12 |
| htld-20241217.htm | 30294 | 2024-12-20 18:25:12 |
| htld-20241217.xsd | 2058 | 2024-12-20 18:25:12 |
| htld-20241217_htm.xml | 2709 | 2024-12-20 18:25:12 |
| htld-20241217_lab.xml | 22150 | 2024-12-20 18:25:12 |
| htld-20241217_pre.xml | 12633 | 2024-12-20 18:25:12 |
| htld2024q4dividendreleasee.htm | 3991 | 2024-12-20 18:25:12 |
| MetaLinks.json | 17281 | 2024-12-20 18:25:12 |
| R1.htm | 38113 | 2024-12-20 18:25:12 |
| report.css | 2767 | 2024-12-20 18:25:12 |
| Show.js | 1084 | 2024-12-20 18:25:12 |