Annual report pursuant to Section 13 and 15(d)

Broadcast Licenses - Results of Impairment Testing of Broadcast Licenses Under Income Approach (Detail)

v3.20.1
Broadcast Licenses - Results of Impairment Testing of Broadcast Licenses Under Income Approach (Detail)
 12 Months Ended
Dec. 31, 2019
Atlanta GA [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 73.70%
Boston MA [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 31.40%
Chicago IL [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 11.20%
Cleveland OH [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 1.20%
Col Springs, CO [Memeber]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 43.80%
Columbus OH [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 40.70%
Little Rock [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 40.60%
Louisville KY [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 6.40%
Miami FL [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 1071.70%
Minneapolis MN [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 125.10%
Orlando FL [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 62.10%
Philadelphia PA [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 15.21%
Portland OR [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 6.10%
Sacramento CA [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 12.20%
San Francisco Ca [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate 28.40%
Tampa FL [Member]  
Goodwill And Other Intangible Assets [Line Items]  
Excess fair value estimate (12.50%)