Goodwill and other intangible assets - Schedule of Indefinite-Lived Intangible Assets, and Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (348,087)	$ (298,593)
Total	257,708
Total indefinite-lived and amortizable intangible assets, gross	2,729,693	2,740,081
Total indefinite-lived and amortizable intangible assets, net	2,381,606	2,441,488
Television and radio station FCC broadcast licenses
Indefinite-lived Intangible Assets [Line Items]
Television and radio station FCC broadcast licenses	2,123,898	2,123,898
Retransmission agreements
Finite-Lived Intangible Assets [Line Items]
Gross	224,827	235,215
Accumulated Amortization	(184,796)	(168,439)
Total	40,031	66,776
Network affiliation agreements
Finite-Lived Intangible Assets [Line Items]
Gross	309,503	309,503
Accumulated Amortization	(121,664)	(97,195)
Total	187,839	212,308
Other
Finite-Lived Intangible Assets [Line Items]
Gross	71,465	71,465
Accumulated Amortization	(41,627)	(32,959)
Total	$ 29,838	$ 38,506