Document and Entity Information
Document and Entity Information - USD ($) $ in Billions | 12 Months Ended | ||
Dec. 31, 2020 | Feb. 15, 2021 | Jun. 30, 2020 | |
Document Information [Line Items] | |||
Entity Registrant Name | HEARTLAND EXPRESS, INC. | ||
Entity Central Index Key | 0000799233 | ||
Document Type | 10-K/A | ||
Document Period End Date | Dec. 31, 2020 | ||
Document Fiscal Year Focus | 2020 | ||
Document Fiscal Period Focus | FY | ||
Current Fiscal Year End Date | --12-31 | ||
Entity Well-known Seasoned Issuer | Yes | ||
Entity Voluntary Filers | No | ||
Entity Shell Company | false | ||
Entity Current Reporting Status | Yes | ||
Amendment Flag | false | ||
Entity Filer Category | Large Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
Entity Common Stock, Shares Outstanding | 79,977,102 | ||
Unvested, Number of Restricted Stock Awards (in shares) | 53,700 | ||
Entity Public Float | $ 0.9 | ||
City Area Code | 319 | ||
Local Phone Number | 626-3600 | ||
Entity Incorporation, State or Country Code | NV | ||
Entity File Number | 0-15087 | ||
Entity Address, Address Line One | 901 Heartland Way | ||
Entity Address, City or Town | North Liberty | ||
Entity Address, State or Province | IA | ||
Security Exchange Name | NASDAQ | ||
Entity Address, Postal Zip Code | 52317 | ||
Entity Tax Identification Number | 93-0926999 | ||
Document Transition Report | false | ||
Entity Interactive Data Current | Yes | ||
Trading Symbol | HTLD | ||
Document Annual Report | true | ||
Title of 12(g) Security | Common Stock, $0.01 par value | ||
ICFR Auditor Attestation Flag | true |