Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000799233-13-000063-index-headers.html | 2013-11-08 17:31:23 | |
| 0000799233-13-000063-index.html | 2013-11-08 17:31:23 | |
| 0000799233-13-000063.txt | 2013-11-08 17:31:23 | |
 0000799233-13-000063-xbrl.zip | 114105 | 2013-11-08 17:31:23 |
| exhibit3112013q3.htm | 23563 | 2013-11-08 17:31:23 |
| exhibit3122013q3.htm | 24710 | 2013-11-08 17:31:23 |
| exhibit3212013q3.htm | 10271 | 2013-11-08 17:31:23 |
| exhibit3222013q3.htm | 11285 | 2013-11-08 17:31:23 |
| FilingSummary.xml | 18923 | 2013-11-08 17:31:23 |
| Financial_Report.xls | 581888 | 2013-11-08 17:31:23 |
| Financial_Report.xlsx | 93915 | 2013-11-08 17:31:23 |
| htld-20130930.xml | 642771 | 2013-11-08 17:31:23 |
| htld-20130930.xsd | 27141 | 2013-11-08 17:31:23 |
| htld-20130930_cal.xml | 51061 | 2013-11-08 17:31:23 |
| htld-20130930_def.xml | 192005 | 2013-11-08 17:31:23 |
| htld-20130930_lab.xml | 418766 | 2013-11-08 17:31:23 |
| htld-20130930_pre.xml | 233469 | 2013-11-08 17:31:23 |
| htld2013q310q.htm | 749986 | 2013-11-08 17:31:23 |
| R1.htm | 26665 | 2013-11-08 17:31:23 |
| R10.htm | 12195 | 2013-11-08 17:31:23 |
| R11.htm | 10166 | 2013-11-08 17:31:23 |
| R12.htm | 96805 | 2013-11-08 17:31:23 |
| R13.htm | 11396 | 2013-11-08 17:31:23 |
| R14.htm | 51862 | 2013-11-08 17:31:23 |
| R15.htm | 18269 | 2013-11-08 17:31:23 |
| R16.htm | 59084 | 2013-11-08 17:31:23 |
| R17.htm | 29510 | 2013-11-08 17:31:23 |
| R18.htm | 9417 | 2013-11-08 17:31:23 |
| R19.htm | 5995 | 2013-11-08 17:31:23 |
| R2.htm | 159534 | 2013-11-08 17:31:23 |
| R20.htm | 118574 | 2013-11-08 17:31:23 |
| R21.htm | 86612 | 2013-11-08 17:31:23 |
| R22.htm | 49289 | 2013-11-08 17:31:23 |
| R23.htm | 49896 | 2013-11-08 17:31:23 |
| R24.htm | 14293 | 2013-11-08 17:31:23 |
| R25.htm | 6637 | 2013-11-08 17:31:23 |
| R26.htm | 8977 | 2013-11-08 17:31:23 |
| R27.htm | 4934 | 2013-11-08 17:31:23 |
| R28.htm | 129815 | 2013-11-08 17:31:23 |
| R29.htm | 18849 | 2013-11-08 17:31:23 |
| R3.htm | 27621 | 2013-11-08 17:31:23 |
| R30.htm | 39464 | 2013-11-08 17:31:23 |
| R31.htm | 8809 | 2013-11-08 17:31:23 |
| R32.htm | 6349 | 2013-11-08 17:31:23 |
| R33.htm | 63150 | 2013-11-08 17:31:23 |
| R34.htm | 58705 | 2013-11-08 17:31:23 |
| R35.htm | 6035 | 2013-11-08 17:31:23 |
| R4.htm | 97404 | 2013-11-08 17:31:23 |
| R5.htm | 26108 | 2013-11-08 17:31:23 |
| R6.htm | 4074 | 2013-11-08 17:31:23 |
| R7.htm | 111624 | 2013-11-08 17:31:23 |
| R8.htm | 14879 | 2013-11-08 17:31:23 |
| R9.htm | 8447 | 2013-11-08 17:31:23 |
| report.css | 2740 | 2013-11-08 17:31:23 |
| Show.js | 1410 | 2013-11-08 17:31:23 |