| Cover | Jul. 29, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 29, 2021 |
| Entity File Number | 0-27754 |
| Entity Registrant Name | Hub Group, Inc. |
| Entity Central Index Key | 0000940942 |
| Entity Tax Identification Number | 36-4007085 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 2000 Clearwater Drive |
| Entity Address, City or Town | Oak Brook |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60523 |
| City Area Code | 630 |
| Local Phone Number | 271-3600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A Common Stock |
| Trading Symbol | HUBG |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
