Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-19-000048-index-headers.html | 2019-11-26 09:05:43 | |
| 0000799233-19-000048-index.html | 2019-11-26 09:05:43 | |
| 0000799233-19-000048.txt | 2019-11-26 09:05:43 | |
 0000799233-19-000048-xbrl.zip | 14523 | 2019-11-26 09:05:43 |
| dividend8k2019q4.htm | 47630 | 2019-11-26 09:05:43 |
| dividend8k2019q4_htm.xml | 4171 | 2019-11-26 09:05:43 |
| FilingSummary.xml | 1752 | 2019-11-26 09:05:43 |
| Financial_Report.xlsx | 5794 | 2019-11-26 09:05:43 |
| htld-20191125.xsd | 4844 | 2019-11-26 09:05:43 |
| htld-20191125_cal.xml | 636 | 2019-11-26 09:05:43 |
| htld-20191125_def.xml | 1486 | 2019-11-26 09:05:43 |
| htld-20191125_lab.xml | 26457 | 2019-11-26 09:05:43 |
| htld-20191125_pre.xml | 13681 | 2019-11-26 09:05:43 |
| MetaLinks.json | 18587 | 2019-11-26 09:05:43 |
| q42019dividendpressrel.htm | 5552 | 2019-11-26 09:05:43 |
| R1.htm | 38635 | 2019-11-26 09:05:43 |
| report.css | 2767 | 2019-11-26 09:05:43 |
| Show.js | 1085 | 2019-11-26 09:05:43 |