Revenues (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 352,209	$ 320,800	$ 680,845	$ 635,285
Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	352,209	320,800	680,845	635,285
Operating Segments \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	80,776	72,567	162,466	141,834
Operating Segments \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	46,226	42,981	84,252	79,621
Operating Segments \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	99,452	85,988	185,238	165,966
Operating Segments \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	57,406	50,281	113,226	103,429
Operating Segments \| Cybersecurity & Martech
Disaggregation of Revenue [Line Items]
Total revenues	68,349	68,983	135,663	144,435
Operating Segments \| Advertising and performance marketing \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	78,798	69,253	158,274	135,160
Operating Segments \| Advertising and performance marketing \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	32,251	28,175	56,622	50,930
Operating Segments \| Advertising and performance marketing \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	82,537	70,367	151,462	134,814
Operating Segments \| Advertising and performance marketing \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	3,221	2,545	5,689	5,514
Operating Segments \| Subscription and licensing \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	2,626	1,866	4,804	3,561
Operating Segments \| Subscription and licensing \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	13,965	14,806	27,611	28,691
Operating Segments \| Subscription and licensing \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	13,687	12,204	26,815	23,788
Operating Segments \| Subscription and licensing \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	50,272	43,889	99,934	90,192
Operating Segments \| Subscription and licensing \| Cybersecurity & Martech
Disaggregation of Revenue [Line Items]
Total revenues	68,349	68,983	135,663	144,435
Operating Segments \| Other \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	(648)	1,448	(612)	3,113
Operating Segments \| Other \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	10	0	19	0
Operating Segments \| Other \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	3,228	3,417	6,961	7,364
Operating Segments \| Other \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	3,913	3,847	7,603	7,723
Operating Segments \| Other \| Cybersecurity & Martech
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Corporate
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 0	$ 0	$ 0