Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.20.1
Subsequent Events - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 06, 2020
Feb. 05, 2020
Oct. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2022
Dec. 31, 2021
Apr. 07, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Agreement to sell business       $ 2 $ 1,255        
Deferred Income       $ 8,500          
Early Payment Discount Percent       5.00%          
Early Payment Discount       $ 400          
Deferred Payments       $ 519         $ 513
Radio stations [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Agreement to sell business   $ 4,000 $ 200            
Subsequent Event [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Advance rate on eligible accounts receivable 85.00%             90.00%  
Percentage of Repayment of Deferred Payments           50.00% 50.00%    
Subsequent Event [Member] | Radio stations [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Agreement to sell business $ 200