Segment Information - Schedule of Segment Operating Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Segment revenue	$ 785,015	$ 824,156	$ 916,961
Less:
Segment cost of services	252,305	286,919	338,714
Segment sales and marketing	225,692	254,433	287,797
Segment research and development	39,111	15,713	12,741
Segment general and administrative	211,198	217,296	208,880
Segment Adjusted EBITDA	151,846	162,431	187,515
Operating Segments
Segment Reporting Information [Line Items]
Segment revenue	785,015	824,156	916,961
Less:
Segment cost of services	236,785	265,251	311,112
Segment sales and marketing	207,702	228,376	256,480
Segment research and development	35,274	15,132	10,525
Segment general and administrative	153,409	152,966	151,329
Segment Adjusted EBITDA	151,846	162,431	187,515
SaaS
Segment Reporting Information [Line Items]
Segment revenue	461,027	343,476	263,717
SaaS | Operating Segments
Segment Reporting Information [Line Items]
Segment revenue	461,027	343,476	263,717
Less:
Segment cost of services	126,066	96,319	88,135
Segment sales and marketing	134,290	131,257	106,498
Segment research and development	35,274	15,132	10,525
Segment general and administrative	91,556	59,578	46,534
Segment Adjusted EBITDA	73,842	41,190	12,025
Marketing Services
Segment Reporting Information [Line Items]
Segment revenue	323,988	480,680	653,244
Marketing Services | Operating Segments
Segment Reporting Information [Line Items]
Segment revenue	323,988	480,680	653,244
Less:
Segment cost of services	110,719	168,932	222,977
Segment sales and marketing	73,412	97,119	149,982
Segment research and development	0	0	0
Segment general and administrative	61,853	93,388	104,795
Segment Adjusted EBITDA	$ 78,004	$ 121,241	$ 175,490