Quarterly report pursuant to Section 13 or 15(d)

Broadcast Licenses - Fair Value Measurement Inputs and Valuation Techniques for Broadcast Licenses (Detail)

v3.22.2
Broadcast Licenses - Fair Value Measurement Inputs and Valuation Techniques for Broadcast Licenses (Detail)
Jun. 30, 2022
Accounting
Dec. 31, 2021
Accounting
Risk-adjusted Discount Rate [Member] | Broadcast Licenses [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 9.5 8.5
Minimum [Member] | Operating Profit Margin [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage (7.8) (1.4)
Minimum [Member] | Operating Profit Margin [Member] | Broadcast Licenses [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 3.9 3.9
Minimum [Member] | Long-term Revenue Growth Rate [Member] | Broadcast Licenses [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 0.4 0.4
Maximum [Member] | Operating Profit Margin [Member] | Broadcast Licenses [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 30.9 30.9
Maximum [Member] | Long-term Revenue Growth Rate [Member] | Broadcast Licenses [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 0.7 0.7