XML 20 R33.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Quarterly Financial Information (Unaudited) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Quarterly Financial Information (Unaudited) [Abstract] |
Schedule of Quarterly Financial Information [Table Text Block] |
|  | First |  | Second |  | Third |  | Fourth
|  | (In Thousands, Except Per Share Data)
Year ended December 31, 2014 |  |  |  |  |  |
Operating revenue |  | $ | 224,481 |  |  | $ | 226,785 |  |  | $ | 217,092 |  |  | $ | 202,997 |
Operating income |  | 20,688 |  |  | 40,642 |  |  | 36,290 |  |  | 34,247 |
Income before income taxes |  | 20,569 |  |  | 40,616 |  |  | 36,214 |  |  | 34,216 |
Net income |  | 14,079 |  |  | 26,472 |  |  | 22,737 |  |  | 21,544 |
Net income per share, basic |  | 0.16 |  |  | 0.30 |  |  | 0.26 |  |  | 0.25 |
Net income per share, diluted |  | 0.16 |  |  | 0.30 |  |  | 0.26 |  |  | 0.25 |
Year ended December 31, 2013(1) |  |  |  |  |  |
Operating revenue |  | $ | 134,273 |  |  | $ | 133,992 |  |  | $ | 130,645 |  |  | $ | 183,348 |
Operating income |  | 30,207 |  |  | 29,375 |  |  | 26,000 |  |  | 26,720 |
Income before income taxes |  | 30,330 |  |  | 29,504 |  |  | 26,126 |  |  | 26,596 |
Net income |  | 19,734 |  |  | 19,138 |  |  | 15,868 |  |  | 15,842 |
Net income per share, basic |  | 0.23 |  |  | 0.23 |  |  | 0.19 |  |  | 0.18 |
Net income per share, diluted |  | 0.23 |  |  | 0.23 |  |  | 0.19 |  |  | 0.18 |
(1) | We acquired 100% of the outstanding stock of GTI on November 11, 2013 and therefore our operating results for the fourth quarter of 2013 includes the operating results of GTI for the period of November, 11, 2013 to December 31, 2013.

X
- Details
Name: | htld_QuarterlyFinancialInformationUnauditedAbstract
Namespace Prefix: | htld_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=35737889&loc=d3e1280-108306 + Details
Name: | us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration