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FCC Licenses - Carrying Amount of FCC License (Detail) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
FCC Licenses [Line Items]    
Beginning Balance $ 516,735,554  
Ending Balance 517,529,167 $ 516,735,554
FCC License [Member]    
FCC Licenses [Line Items]    
Beginning Balance 516,735,554 489,186,679
Acquisitions of translator licenses   202,675
Asset acquisition   27,346,200
Ending Balance   $ 516,735,554
Outlaws [Member] | FCC License [Member]    
FCC Licenses [Line Items]    
Asset acquisition 13,155,601  
Impairment losses (12,361,988)  
Ending Balance $ 517,529,167