Basis of presentation and accounting policies - Reconciliations Between Revenue and Primary Measures of Profit or Loss (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Less:
Net Income		$ 67,902	$ 82,029	$ 126,209	$ 271,291
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue		675,045	710,363	1,355,094	1,424,615
Less:
Programming		249,365	245,934	513,531	495,692
Employee compensation	[1]	166,490	178,936	338,474	362,227
Other segment items	[2]	108,228	109,766	215,879	216,782
Adjusted EBITDA		150,962	175,727	287,210	349,914
(Less) Plus: All other segment items	[3]	(83,060)	(93,698)	(161,001)	(78,623)
Net Income		$ 67,902	$ 82,029	$ 126,209	$ 271,291

[1] Includes the cost associated with salaries, bonuses, stock-based compensation, benefits paid to our employees and adjusted to remove workforce restructuring and retention costs (including stock-based compensation and cash payments).

[2] Primarily includes digital ad serving fees, professional service fees and costs associated with operating our facilities.

[3] Primarily includes taxes, interest expense, other non-operating costs, depreciation and amortization.