Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions - Pending Transactions -Additional Information (Detail)

v3.20.1
Recent Transactions - Pending Transactions -Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Feb. 05, 2020
Oct. 31, 2019
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Agreement to sell business     $ 2   $ 1,255
Radio Stations [Member]          
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Agreement to sell business $ 4,000 $ 200      
Pretax loss on sale of assets       $ 1,500  
Credit applied to the sale price $ 250,000        
Time brokerage agreement fees     2,000    
Line of credit facility, option payment     450,000    
Loss on sales     500    
Loss on sale of Loans met taxes     $ 300