| Document and Entity Information | Jan. 22, 2024 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0000703604 |
| Document Type | 8-K |
| Document Period End Date | Jan. 22, 2024 |
| Entity Registrant Name | DISTRIBUTION SOLUTIONS GROUP, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 0-10546 |
| Entity Tax Identification Number | 36-2229304 |
| Entity Address, Address Line One | 301 Commerce Street |
| Entity Address, Address Line Two | Suite 1700 |
| Entity Address, City or Town | Fort Worth |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 76102 |
| City Area Code | (888) |
| Local Phone Number | 611-9888 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $1.00 par value |
| Trading Symbol | DSGR |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
