Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Fair Value Measurement Inputs and Valuation Techniques For Goodwill (Detail)

v3.22.2
Goodwill - Fair Value Measurement Inputs and Valuation Techniques For Goodwill (Detail)
Jun. 30, 2022
Dec. 31, 2021
Measurement Input Risk Adjusted Discount Rate [Member] | Radio Clusters [Member] | Broadcast Networks Enterprise Valuations [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 9.5 8.5
Long-term Revenue Growth Rate [Member] | Radio Clusters [Member] | Broadcast Networks Enterprise Valuations [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 0.4 0.4
Minimum [Member] | Measurement Input Operating Profit Margin [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage (7.8) (1.4)
Maximum [Member] | Measurement Input Operating Profit Margin [Member] | Radio Clusters [Member] | Broadcast Networks Enterprise Valuations [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Intangible asset measurement input percentage 15 15