Description of business, use of estimates, basis of presentation, terminated merger agreement, and summary of significant accounting policies - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,910,930	$ 3,279,245	$ 2,991,093
Subscription
Disaggregation of Revenue [Line Items]
Total revenues	1,527,563	1,530,402	1,466,433
Advertising & Marketing Services
Disaggregation of Revenue [Line Items]
Total revenues	1,289,903	1,363,417	1,428,082
Political
Disaggregation of Revenue [Line Items]
Total revenues	45,800	341,110	60,573
Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 47,664	$ 44,316	$ 36,005