Equity - Summary of Changes in Ownership (Details) - USD ($)				12 Months Ended
	Nov. 17, 2023	Jul. 03, 2023	Jan. 17, 2022	Dec. 31, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Net loss				$ (122,693,000)	$ (52,500,000)
Transfers
Class of Stock [Line Items]
Net loss				(81,681,000)	(31,952,000)
Stock issued during period, conversion of convertible securities				(1,645,000)	(1,156,000)
Treasury stock purchased under the 2020 Omnibus Incentive Plan				326,000	219,000
Net transfers from non-controlling interests				(70,155,000)	(5,939,000)
Change from net income attributable to DMS Inc. shareholders and transfers from non-controlling interests				(151,836,000)	(37,891,000)
Prism Data | Transfers
Class of Stock [Line Items]
Stock issued during period, conversion of convertible securities	$ 1,520,900	$ 41,200		(68,836,000)	0
Crisp Results
Class of Stock [Line Items]
Shares issued in connection with the Crisp Earnout (Note 7)					10,000,000
Crisp Results | Transfers
Class of Stock [Line Items]
Shares issued in connection with the Crisp Earnout (Note 7)				0	(4,757,000)
Smarter Chaos | Transfers
Class of Stock [Line Items]
Stock issued during period, conversion of convertible securities			$ 153,700	$ 0	$ (245,000)