Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-25-000040-index-headers.html | 2025-06-16 18:33:03 | |
| 0000799233-25-000040-index.html | 2025-06-16 18:33:03 | |
| 0000799233-25-000040.txt | 2025-06-16 18:33:03 | |
 0000799233-25-000040-xbrl.zip | 10862 | 2025-06-16 18:33:03 |
| FilingSummary.xml | 1644 | 2025-06-16 18:33:03 |
| htld-20250613.htm | 30717 | 2025-06-16 18:33:03 |
| htld-20250613.xsd | 2058 | 2025-06-16 18:33:03 |
| htld-20250613_htm.xml | 2709 | 2025-06-16 18:33:03 |
| htld-20250613_lab.xml | 22150 | 2025-06-16 18:33:03 |
| htld-20250613_pre.xml | 12633 | 2025-06-16 18:33:03 |
| htld2025q2dividendreleasee.htm | 3983 | 2025-06-16 18:33:03 |
| MetaLinks.json | 17280 | 2025-06-16 18:33:03 |
| R1.htm | 38098 | 2025-06-16 18:33:03 |
| report.css | 2766 | 2025-06-16 18:33:03 |
| Show.js | 1084 | 2025-06-16 18:33:03 |