Revenues (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 363,711	$ 353,580	$ 1,044,556	$ 988,865
Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	363,711	353,580	1,044,556	988,865
Operating Segments \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	85,189	87,126	247,655	228,960
Operating Segments \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	47,578	49,714	131,830	129,335
Operating Segments \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	102,306	90,771	287,544	256,737
Operating Segments \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	57,179	55,943	170,405	159,372
Operating Segments \| Cybersecurity & Martech
Disaggregation of Revenue [Line Items]
Total revenues	71,459	70,026	207,122	214,461
Operating Segments \| Advertising and performance marketing \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	84,226	80,485	242,500	215,645
Operating Segments \| Advertising and performance marketing \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	31,917	34,909	88,539	85,839
Operating Segments \| Advertising and performance marketing \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	85,587	75,084	237,049	209,898
Operating Segments \| Advertising and performance marketing \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	3,368	3,135	9,057	8,649
Operating Segments \| Subscription and licensing \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	2,777	1,594	7,581	5,155
Operating Segments \| Subscription and licensing \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	15,657	14,795	43,268	43,486
Operating Segments \| Subscription and licensing \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	13,679	12,751	40,494	36,539
Operating Segments \| Subscription and licensing \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	49,198	48,309	149,132	138,501
Operating Segments \| Subscription and licensing \| Cybersecurity & Martech
Disaggregation of Revenue [Line Items]
Total revenues	69,145	70,026	204,808	214,461
Operating Segments \| Other \| Technology & Shopping
Disaggregation of Revenue [Line Items]
Total revenues	(1,814)	5,047	(2,426)	8,160
Operating Segments \| Other \| Gaming & Entertainment
Disaggregation of Revenue [Line Items]
Total revenues	4	10	23	10
Operating Segments \| Other \| Health & Wellness
Disaggregation of Revenue [Line Items]
Total revenues	3,040	2,936	10,001	10,300
Operating Segments \| Other \| Connectivity
Disaggregation of Revenue [Line Items]
Total revenues	4,613	4,499	12,216	12,222
Operating Segments \| Other \| Cybersecurity & Martech
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,314	$ 0	$ 2,314	$ 0