XML 32 R21.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Related Party | 3 Months Ended
--- | ---
Mar. 31, 2018
Related Party [Abstract] |
Related Party | Related Party We lease certain terminal facilities for operations under operating leases from certain limited liability companies, whose members include one of our board members and a commercial tractor dealership whose owners include one of our board members. The terminal facility leases have initial five year terms, purchase options and options to renew. We have sold trailers to and have purchased parts and services from the commercial tractor dealership noted above. We owed the commercial tractor dealership $0.1 million and $0.1 million, included in accounts payable and accrued liabilities in the consolidated balance sheets at March 31, 2018 and December 31, 2017, respectively. The related payments (receipts) with related parties for the three months ended March 31, 2018 and 2017 (in thousands) were as follows:
| Three months ended March 31,
| 2018 |  | 2017
Receipts for trailer sales | $ | — |  |  | $ | (12 | )
Payments for parts and services | 136 |  |  | 109 |
Terminal lease payments | 247 |  |  | 415 |
| $ | 383 |  |  | $ | 512 |

X
- Definition Related Party [Abstract] + References No definition available. + Details
Name: | htld_RelatedPartyAbstract
Namespace Prefix: | htld_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -URI http://asc.fasb.org/topic&trid=2122745 + Details
Name: | us-gaap_RelatedPartyTransactionsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration