Organization and Description of Business (Details)	3 Months Ended
	Mar. 31, 2023
Direct Digital Holdings, LLC
Schedule of Organization and Description of Business [Line Items]
Percentage of voting interests	100.00%
Percentage of economic voting interests	19.70%
Percentage of ownership interest	100.00%
Huddled Masses, LLC | Buy-side advertising
Schedule of Organization and Description of Business [Line Items]
Percentage of ownership interest	100.00%
Colossus Media, LLC | Sell-side advertising
Schedule of Organization and Description of Business [Line Items]
Percentage of ownership interest	100.00%
Orange142, LLC | Buy-side advertising
Schedule of Organization and Description of Business [Line Items]
Percentage of ownership interest	100.00%