Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Mar. 14, 2022	Jun. 30, 2021	Dec. 31, 2020
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity Registrant Name	Digital Media Solutions, Inc.
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
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 95.6
Class of Warrant or Right, Outstanding	10,000,000			10,000,000
Entity Central Index Key	0001725134
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
Common Class A
Entity 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
Entity Common Stock, Shares Outstanding	36,225,611	36,394,335
Common Class B
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		25,699,464
Redeemable warrants to acquire Class A common stock
Entity Information [Line Items]
Title of 12(b) Security	Redeemable warrants to acquire Class A Common Stock
Trading Symbol	DMS WS
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		13,999,078