Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.19.2
Subsequent Events - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Jul. 10, 2019
Jul. 05, 2019
Jul. 25, 2019
Jun. 30, 2019
Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Agreement to sell business       $ 2,872 $ 1,791
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period       389,061  
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period         0
Subsequent Event [Member] | Restricted Stock [Member] | Executive Officer [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   41,323      
Shares award vesting period   2 years      
Subsequent Event [Member] | Journey box media [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Business Combination, Consideration Transferred     $ 500    
Subsequent Event [Member] | Radio stations [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Agreement to sell business     8,200    
Pretax loss on sale of assets     $ 4,700    
Subsequent Event [Member] | Worl AM [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Agreement to sell business $ 900        
Pretax loss on sale of assets 1,600        
Subsequent Event [Member] | Steelehouse production [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Business Combination, Consideration Transferred $ 100