Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-26-000017-index-headers.html | 2026-04-02 10:12:25 | |
| 0000799233-26-000017-index.html | 2026-04-02 10:12:25 | |
| 0000799233-26-000017.txt | 2026-04-02 10:12:25 | |
 0000799233-26-000017-xbrl.zip | 2219128 | 2026-04-02 10:12:25 |
| FilingSummary.xml | 3499 | 2026-04-02 10:12:25 |
| htld-20260401.htm | 593249 | 2026-04-02 10:12:25 |
| htld-20260401.xsd | 11655 | 2026-04-02 10:12:25 |
| htld-20260401_def.xml | 26888 | 2026-04-02 10:12:25 |
 htld-20260401_g1.jpg | 465464 | 2026-04-02 10:12:25 |
 htld-20260401_g2.jpg | 443445 | 2026-04-02 10:12:25 |
 htld-20260401_g3.jpg | 443960 | 2026-04-02 10:12:25 |
 htld-20260401_g4.jpg | 858629 | 2026-04-02 10:12:25 |
 htld-20260401_g5.jpg | 415129 | 2026-04-02 10:12:25 |
| htld-20260401_htm.xml | 106163 | 2026-04-02 10:12:25 |
| htld-20260401_lab.xml | 159976 | 2026-04-02 10:12:25 |
| htld-20260401_pre.xml | 80355 | 2026-04-02 10:12:25 |
| MetaLinks.json | 110639 | 2026-04-02 10:12:25 |
| R1.htm | 10831 | 2026-04-02 10:12:25 |
| R2.htm | 129484 | 2026-04-02 10:12:25 |
| R3.htm | 4650 | 2026-04-02 10:12:25 |
| R4.htm | 4370 | 2026-04-02 10:12:25 |
| report.css | 2767 | 2026-04-02 10:12:25 |
| Show.js | 1085 | 2026-04-02 10:12:25 |