Annual report pursuant to Section 13 and 15(d)

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

v3.22.4
Goodwill - Fair Value Measurement Inputs and Valuation Techniques For Goodwill (Detail)
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Measurement Input Risk Adjusted Discount Rate [Member] | Broadcast Networks Enterprise Valuations [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 9.5   9.5 8.5
Measurement Input Risk Adjusted Discount Rate [Member] | Digital [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 10.5 10.5 10.5 9.5
Measurement Input Risk Adjusted Discount Rate [Member] | Publishing [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.105 0.105 0.105 0.095
Measurement Input, Long-term Revenue Growth Rate [Member] | Digital [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.6 0.5 0.5 0.5
Measurement Input, Long-term Revenue Growth Rate [Member] | Publishing [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.005 0.005 0.005 0.005
Measurement Input, 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] | Digital [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.009 0.29 0.285 0.253
Minimum [Member] | Measurement Input Operating Profit Margin [Member] | Publishing [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.09 0.005 0.005 0.024
Minimum [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 17.2   7.8 1.4
Minimum [Member] | Measurement Input, 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 0.6      
Maximum [Member] | Measurement Input Operating Profit Margin [Member] | Digital [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.053 0.3355 0.329 0.285
Maximum [Member] | Measurement Input Operating Profit Margin [Member] | Publishing [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Intangible asset measurement input percentage 0.049 0.027 0.03 0.052
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 37.3   15 15
Maximum [Member] | Measurement Input, 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 0.7