v3.26.1
Goodwill and Other Intangible Assets - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
market
Jun. 30, 2025
USD ($)
market
Jun. 30, 2026
USD ($)
market
Jun. 30, 2025
USD ($)
market
Dec. 31, 2025
USD ($)
Indefinite-lived Intangible Assets [Line Items]          
Renewal period     8 years    
Number of local markets with impairment charge incurred | market 19 4 20 4  
Goodwill $ 147,590,000   $ 147,590,000   $ 147,590,000
Amortization of intangible assets $ 800,000 $ 900,000 $ 1,700,000 $ 1,800,000  
National Digital          
Indefinite-lived Intangible Assets [Line Items]          
Fair value in excess of carrying amount percentage         47.00%
Townsquare Ignite          
Indefinite-lived Intangible Assets [Line Items]          
Fair value in excess of carrying amount percentage         106.00%
Townsquare Interactive Segment          
Indefinite-lived Intangible Assets [Line Items]          
Fair value in excess of carrying amount percentage         152.00%
Local Advertising Businesses          
Indefinite-lived Intangible Assets [Line Items]          
Goodwill         $ 0
Live Events          
Indefinite-lived Intangible Assets [Line Items]          
Goodwill         0
Amped          
Indefinite-lived Intangible Assets [Line Items]          
Goodwill         $ 0
Weighted Average Cost Of Capital          
Indefinite-lived Intangible Assets [Line Items]          
Point increase, assumptions 1.00%   1.00%    
Long-Term Revenue Growth          
Indefinite-lived Intangible Assets [Line Items]          
Point decrease, assumptions 1.00%   1.00%    
United States          
Indefinite-lived Intangible Assets [Line Items]          
Number of markets in which tower sites sold | market 74 74 74 74  
FCC licenses          
Indefinite-lived Intangible Assets [Line Items]          
Impairment charge $ 26,600,000 $ 1,500,000 $ 35,200,000 $ 1,500,000  
FCC licenses | A 100-Basis Point Increase In Weighted Average Cost Of Capital          
Indefinite-lived Intangible Assets [Line Items]          
Impairment charge     10,000,000.0    
Finite-lived intangible assets at fair value, decrease     16,500,000    
FCC licenses | A 100-Basis Point Decline In Long-Term Revenue Growth Rate          
Indefinite-lived Intangible Assets [Line Items]          
Impairment charge     5,600,000    
Finite-lived intangible assets at fair value, decrease     8,400,000    
FCC licenses | A 100-Basis Point Decline In Operating Profit Margins          
Indefinite-lived Intangible Assets [Line Items]          
Impairment charge     6,800,000    
Finite-lived intangible assets at fair value, decrease     $ 8,000,000.0