Broadcast Licenses, Goodwill and Other Intangible Assets - Schedule of certain key estimates and assumptions used in impairment test (Details)	Dec. 31, 2025	Dec. 31, 2024
Discount rates | Licensing Agreements
Finite-Lived Intangible Assets
Impairment measurement input	0.085	0.09
Discount rates | Goodwill
Finite-Lived Intangible Assets
Impairment measurement input	0.085	0.09
Operating profit margin ranges | Licensing Agreements | Minimum
Finite-Lived Intangible Assets
Impairment measurement input	0.216	0.178
Operating profit margin ranges | Licensing Agreements | Maximum
Finite-Lived Intangible Assets
Impairment measurement input	0.248	0.364
Operating profit margin ranges | Goodwill | Minimum
Finite-Lived Intangible Assets
Impairment measurement input	0.134	0.197
Operating profit margin ranges | Goodwill | Maximum
Finite-Lived Intangible Assets
Impairment measurement input	0.195	0.27
Market long-term revenue growth rates | Licensing Agreements | Minimum
Finite-Lived Intangible Assets
Impairment measurement input	(0.005)	0.005
Market long-term revenue growth rates | Licensing Agreements | Maximum
Finite-Lived Intangible Assets
Impairment measurement input		0.015
Market long-term revenue growth rates | Goodwill
Finite-Lived Intangible Assets
Impairment measurement input		0.012
Market long-term revenue growth rates | Goodwill | Minimum
Finite-Lived Intangible Assets
Impairment measurement input	0.2
Market long-term revenue growth rates | Goodwill | Maximum
Finite-Lived Intangible Assets
Impairment measurement input	1.1