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Subsequent Event - Additional Information (Details)
3 Months Ended 33 Months Ended
Jan. 01, 2023
Nov. 25, 2021
May 19, 2021
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2022
Jun. 30, 2022
USD ($)
Jun. 01, 2021
USD ($)
Debt Instrument [Line Items]              
Principal payment of debt       $ 97,907,000      
Senior credit facility amount       $ 0      
Debt instrument interest percentage       6.00%      
Debt instrument increasing interest rate of each successive anniversary       1.00%      
Senior Credit Facility              
Debt Instrument [Line Items]              
Principal payment of debt       $ 70,972,000      
Senior Credit Facility | FCC Licenses              
Debt Instrument [Line Items]              
Formula based percentage on fair value of licenses       60.00%      
SG Broadcasting              
Debt Instrument [Line Items]              
Principal payment of debt       $ 21,400,000      
Subsequent Event              
Debt Instrument [Line Items]              
Debt frequency of principal payments, description     no quarterly scheduled principal payments are required through and including the quarter ending March 31, 2022        
Debt instrument, amount of amendment fee added to principal amount     $ 400,000        
Subsequent Event | Senior Credit Facility              
Debt Instrument [Line Items]              
Principal payment of debt     $ 3,000,000        
Subsequent Event | Senior Credit Facility | Minimum [Member]              
Debt Instrument [Line Items]              
Multiple applied to billboard cash flow     3.5        
Subsequent Event | Senior Credit Facility | Maximum              
Debt Instrument [Line Items]              
Multiple applied to billboard cash flow     5.0        
Subsequent Event | Senior Credit Facility | FCC Licenses              
Debt Instrument [Line Items]              
Formula based percentage on fair value of licenses     70.00%        
Subsequent Event | SG Broadcasting | May 2021 SG Broadcasting Promissory Note              
Debt Instrument [Line Items]              
Face amount of debt     $ 3,000,000        
Senior credit facility amount     7,000,000        
Senior credit facility amount outstanding     $ 0        
Debt instrument interest percentage     6.00%        
Debt instrument increasing interest rate of each successive anniversary     1.00%        
Debt instrument maturity date     May 25, 2025        
Forecast | Senior Credit Facility              
Debt Instrument [Line Items]              
Percentage of fixed charge coverage ratio 110.00%       100.00%    
Forecast | SG Broadcasting | May 2021 SG Broadcasting Promissory Note              
Debt Instrument [Line Items]              
Debt instrument additional increase in interest rate   1.00%          
Subordinated Debt | Subsequent Event | SG Broadcasting              
Debt Instrument [Line Items]              
Face amount of debt     $ 7,000,000        
Subordinated Debt | Contributed at Closing | Subsequent Event | SG Broadcasting              
Debt Instrument [Line Items]              
Face amount of debt     $ 3,000,000        
Subordinated Debt | Forecast | SG Broadcasting              
Debt Instrument [Line Items]              
Face amount of debt           $ 3,000,000 $ 1,000,000
Paid In Kind Monthly | If Multiple Applied to Billboard Cash Flow Exceeds 3.5 or Advance Rate Applied to FCC Licenses Exceeds 60% | Subsequent Event | Senior Credit Facility              
Debt Instrument [Line Items]              
Incremental annual interest rate     1.00%