Segment Information - Schedule of Segment Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Revenue	$ 183,822	$ 280,650	$ 680,798	$ 923,020
Segment Gross Profit	103,644	175,639	418,537	601,477
Segment Adjusted EBITDA	7,331	65,432	135,239	265,149
Marketing Services
Segment Reporting Information [Line Items]
Revenue	92,884	197,174	377,868	632,277
Segment Gross Profit	50,610	126,846	231,807	415,130
Segment Adjusted EBITDA	5,369	61,802	84,866	211,871
SaaS
Segment Reporting Information [Line Items]
Revenue	64,650	55,353	182,927	153,863
Segment Gross Profit	40,957	33,827	114,480	95,328
Segment Adjusted EBITDA	1,986	398	10,231	(3,769)
Marketing Services
Segment Reporting Information [Line Items]
Revenue	23,578	26,833	113,183	133,715
Segment Gross Profit	10,166	14,351	67,498	89,694
Segment Adjusted EBITDA	2,466	5,807	44,851	64,449
SaaS
Segment Reporting Information [Line Items]
Revenue	2,710	1,290	6,820	3,165
Segment Gross Profit	1,911	615	4,752	1,325
Segment Adjusted EBITDA	$ (2,490)	$ (2,575)	$ (4,709)	$ (7,402)