Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-22-000056-index-headers.html | 2022-11-04 17:14:05 | |
| 0000799233-22-000056-index.html | 2022-11-04 17:14:05 | |
| 0000799233-22-000056.txt | 2022-11-04 17:14:05 | |
 0000799233-22-000056-xbrl.zip | 10998 | 2022-11-04 17:14:05 |
| FilingSummary.xml | 1629 | 2022-11-04 17:14:05 |
| Financial_Report.xlsx | 5689 | 2022-11-04 17:14:05 |
| htld-20221031.htm | 42742 | 2022-11-04 17:14:05 |
| htld-20221031.xsd | 2175 | 2022-11-04 17:14:05 |
| htld-20221031_htm.xml | 10816 | 2022-11-04 17:14:05 |
| htld-20221031_lab.xml | 24451 | 2022-11-04 17:14:05 |
| htld-20221031_pre.xml | 12631 | 2022-11-04 17:14:05 |
| MetaLinks.json | 16849 | 2022-11-04 17:14:05 |
| R1.htm | 38124 | 2022-11-04 17:14:05 |
| report.css | 2766 | 2022-11-04 17:14:05 |
| Show.js | 1084 | 2022-11-04 17:14:05 |