| Cover | Nov. 02, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 02, 2023 |
| Entity Registrant Name | DISTRIBUTION SOLUTIONS GROUP, INC. |
| Amendment Flag | false |
| Entity Central Index Key | 0000703604 |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 0-10546 |
| Entity Tax Identification Number | 36-2229304 |
| Entity Address, Address Line One | 301 Commerce Street, 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 |
| Title of 12(b) Security | Common stock, $1.00 par value |
| Trading Symbol | DSGR |
| Entity Emerging Growth Company | false |
| Security Exchange Name | NASDAQ |
