Goodwill and other intangible assets - Schedule of Indefinite-Lived Intangible Assets, and Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Indefinite-lived Intangible Assets [Line Items]
Accumulated Amortization	$ (185,175)	$ (289,949)
Total	185,041
Total indefinite-lived and amortizable intangible assets, gross	2,494,947	2,618,921
Total indefinite-lived and amortizable intangible assets, net	2,309,772	2,328,972
Retransmission agreements
Indefinite-lived Intangible Assets [Line Items]
Gross		113,621
Accumulated Amortization		(95,619)
Total		18,002
Network affiliation agreements
Indefinite-lived Intangible Assets [Line Items]
Gross	266,018	309,502
Accumulated Amortization	(122,539)	(144,834)
Total	143,479	164,668
Other
Indefinite-lived Intangible Assets [Line Items]
Gross	104,198	71,067
Accumulated Amortization	(62,636)	(49,496)
Total	41,562	21,571
Television and radio station FCC broadcast licenses
Indefinite-lived Intangible Assets [Line Items]
Television and radio station FCC broadcast licenses	$ 2,124,731	$ 2,124,731