Annual report pursuant to Section 13 and 15(d)

Broadcast Licenses - Additional Information (Detail)

v3.22.0.1
Broadcast Licenses - Additional Information (Detail)
12 Months Ended
Dec. 31, 2021
Broadcast Licenses [Member]  
Indefinite-lived Intangible Assets [Line Items]  
License renewable term 8 years
Percentage of fair value over carrying value benchmark for qualitative impairment analysis 25.00%
Licensing Agreements [Member]  
Indefinite-lived Intangible Assets [Line Items]  
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension 7 years 3 months 18 days