| Cover | Feb. 02, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 2, 2021 |
| Entity Registrant Name | Digital Media Solutions, Inc. |
| Entity Central Index Key | 0001725134 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-38393 |
| Entity Tax Identification Number | 98-1399727 |
| Entity Address, Address Line One | 4800 140th Avenue N. |
| Entity Address, Address Line Two | Suite 101 |
| Entity Address, City or Town | Clearwater |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33762 |
| City Area Code | 877 |
| Local Phone Number | 236-8632 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Class A common stock, $0.0001 par value per share | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A common stock, $0.0001 par value per share |
| Trading Symbol | DMS |
| Security Exchange Name | NYSE |
| Redeemable Warrants to Acquire Class A Common Stock [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Redeemable warrants to acquire Class A common stock |
| Trading Symbol | DMS WS |
| Security Exchange Name | NYSE |
