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FCC Licenses - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2020
Jun. 30, 2020
FCC Licenses [Line Items]    
Impairment losses   $ 6,804,412
Atlanta GA and Wet Palm Beach [Member] | Licensing Agreements [Member]    
FCC Licenses [Line Items]    
Impairment losses $ 6,800,000