Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.20.1
Subsequent Events - Additional Information (Detail) - USD ($)
Mar. 10, 2020
Feb. 05, 2020
Radio stations [Member] | WFIA,WGTK [Member] | LouisvilleKy [Member] | Scenario, Forecast [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Disposal group discontinued operation credit on sale   $ 250,000
Radio stations [Member] | WFIA,WGTK [Member] | LouisvilleKy [Member] | Scenario Forecast One [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Disposal group discontinued operation provision for gain loss on disposal after tax   500,000
Radio stations [Member] | WFIA,WGTK [Member] | LouisvilleKy [Member] | Scenario Forecast Two [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Disposal group discontinued operation provision for gain loss on disposal after tax   $ 300,000
Radio stations [Member] | WFIA,WGTK [Member] | LouisvilleKy [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Disposal group discontinued operation period for which the costs are to be incurred   29 months
Radio stations [Member] | WFIA,WGTK [Member] | LouisvilleKy [Member] | Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Disposal group discontinued operation period for which the costs are to be incurred   4 months
Subsequent Event [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Common stock, equity distributions, per share, declared $ 0.0250  
Subsequent Event [Member] | Radio stations [Member] | WFIA,WGTK [Member] | LouisvilleKy [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Disposal group discontinued operation consideration receivable   $ 4,000,000
Disposal group discontinued operations monthly brokerage expenses   2,000
Disposal group discontinued operation expenses on disposal credit of option payment fees   $ 450,000