Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions - Pending Transactions -Additional Information (Detail)

v3.20.2
Recent Transactions - Pending Transactions -Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 06, 2020
Feb. 05, 2020
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Agreement to sell business       $ 188 $ 2,872
Additional Term Of Time Brokerage Agreement   30 months      
Radio Stations [Member]          
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]          
Agreement to sell business $ 200 $ 4,000      
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