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| 0000799233-12-000017-index.html | 2012-02-28 17:22:45 | |
| 0000799233-12-000017.txt | 2012-02-28 17:22:45 | |
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| exhibit103.htm | 45511 | 2012-02-28 17:22:45 |
| exhibit3112011q4.htm | 23584 | 2012-02-28 17:22:45 |
| exhibit3122011q4.htm | 24731 | 2012-02-28 17:22:45 |
| exhibit3212011q4.htm | 9730 | 2012-02-28 17:22:45 |
| exhibit3222011q4.htm | 10618 | 2012-02-28 17:22:45 |
| exhibitno21.htm | 7377 | 2012-02-28 17:22:45 |
| FilingSummary.xml | 28589 | 2012-02-28 17:22:45 |
| Financial_Report.xls | 937175 | 2012-02-28 17:22:45 |
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| htld-20111231.xsd | 45519 | 2012-02-28 17:22:45 |
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| htld2011q410k.htm | 1469217 | 2012-02-28 17:22:45 |
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