Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions - Acquisitions - Additional Information (Detail)

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Recent Transactions - Acquisitions - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 24, 2023
Feb. 01, 2023
Jan. 10, 2023
Jan. 06, 2023
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Business Acquisition [Line Items]                
Payments to Acquire Businesses, Gross         $ 25 $ 0    
Goodwill         25,346   $ 24,085 $ 23,986
Limited Liability Company [Member]                
Business Acquisition [Line Items]                
Investment Owned, at Cost         $ 1,500      
George Gilder Report and other digital newsletters and related website assets [Member]                
Business Acquisition [Line Items]                
Percentage of Purchase Price On Net Revenue   25.00%            
Radio stations WWFEAM, WRHCAM and two FM translators in Miami [Member]                
Business Acquisition [Line Items]                
Payments to Acquire Businesses, Gross     $ 3,000          
Radio stations WWFEAM, WRHCAM and two FM translators in Miami [Member] | Lease Transaction for the Land [Member]                
Business Acquisition [Line Items]                
Payments to Acquire Businesses, Gross       $ 3,200        
Digital Media [Member]                
Business Acquisition [Line Items]                
Goodwill   $ 1,200            
Digital Felt Productions and digital content library [Member]                
Business Acquisition [Line Items]                
Payments to Acquire Businesses, Gross $ 25,000