| Document and Entity Information - USD ($) $ in Millions | 12 Months Ended | ||
| Dec. 31, 2021 | Feb. 18, 2022 | Jun. 30, 2021 | |
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Document Period End Date | Dec. 31, 2021 | ||
| Entity File Number | 001-37509 | ||
| Entity Registrant Name | DASEKE, INC. | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 47-3913221 | ||
| Entity Address, Address Line One | 15455 Dallas Parkway | ||
| Entity Address, Address Line Two | Suite 550 | ||
| Entity Address, City or Town | Addison | ||
| Entity Address, State or Province | TX | ||
| Entity Address, Postal Zip Code | 75001 | ||
| City Area Code | 972 | ||
| Local Phone Number | 248-0412 | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | false | ||
| ICFR Auditor Attestation Flag | true | ||
| Entity Shell Company | false | ||
| Common shares outstanding | 62,566,133 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Document Fiscal Year Focus | 2021 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Central Index Key | 0001642453 | ||
| Amendment Flag | true | ||
| Amendment Description | This Amendment No. 1 on Form 10-K/A (this “Amendment No. 1”) amends our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 (the “Original Report”), filed with the Securities and Exchange Commission (the “SEC”) on February 23, 2022 (the “Original Filing Date”). The sole purpose of this Amendment No. 1 is to include the information required by Items 10 through 14 of Part III of Form 10-K. This information was previously omitted from the Original Report in reliance on General Instruction G(3) to Form 10-K, which permits the information in the above referenced items to be incorporated in the Form 10-K by reference from our definitive proxy statement if such statement is filed no later than 120 days after our fiscal year-end. We are filing this Amendment No. 1 to include Part III information in our Form 10-K because we will not file a definitive proxy statement containing such information within 120 days after the end of the fiscal year covered by the Original Report. The reference on the cover of the Original Report to the incorporation by reference to portions of our definitive proxy statement into Part III of the Original Report is hereby deleted. In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Part III, Items 10 through 14 and Part IV, Item 15 of the Original Report are hereby amended and restated in their entirety. This Amendment No. 1 does not amend, update or otherwise change any other information in the Original Report and does not purport to reflect any information or events subsequent to the Original Filing Date. Accordingly, this Amendment No. 1 should be read in conjunction with our filings made with the SEC subsequent to the filing of the Original Report, including any amendment to those filings. Pursuant to Rule 12b-15 under the Exchange Act, this Amendment No. 1 also contains new certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, which are attached hereto. Because no financial statements are included in this Amendment No. 1 and this Amendment No. 1 does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. Unless expressly indicated or the context requires otherwise, the terms “Daseke,” the “Company,” “we,” “us” and “our” in this document refer to Daseke, Inc., a Delaware corporation, and, where appropriate, its wholly owned subsidiaries. | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Public Float | $ 291.8 | ||
| Entity Voluntary Filers | No | ||
| Auditor Name | Grant Thornton LLP | ||
| Auditor Location | Dallas, Texas | ||
| Auditor Firm ID | 248 | ||
| Common Stock | |||
| Document Information [Line Items] | |||
| Title of 12(b) Security | Common Stock, par value $0.0001 per share | ||
| Trading Symbol | DSKE | ||
| Security Exchange Name | NASDAQ | ||
| Warrants | |||
| Document Information [Line Items] | |||
| Title of 12(b) Security | Warrants, each exercisable for one half of a share of Common Stock at an exercise price of $5.75 per half share |
