Tax Receivable Agreement and Income Taxes - Tax Receivable Agreement (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Dec. 31, 2023	Aug. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Income Tax Contingency [Line Items]
Percentage of net cash saving to be paid			85.00%
Percentage of net cash saving to be retained			15.00%
Additional paid-in capital related to tax receivable agreement			$ 250	$ 823
Total TRA liability recognized	$ 5,242		5,242	4,333
Outside basis difference in partnership interest			6,200	5,200
Revaluation of tax receivable agreement liability			331
Maximum
Income Tax Contingency [Line Items]
Payment on tax receivable agreement			$ 100	$ 100
Direct Digital Management LLC | Common Class A
Income Tax Contingency [Line Items]
Number of units exchanged	410,000	100,000	410,000	100,000