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Goodwill and Other Intangible Assets (Subsidiary) - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount $ 3,839,323 $ 3,811,018  
Accumulated Amortization 2,776,722 2,639,584  
Goodwill gross carrying amount 2,288,618 2,288,807 $ 2,288,805
Goodwill accumulated amortization 253,536 253,536  
LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 3,838,777 3,810,473  
Accumulated Amortization 2,776,644 2,639,506  
Goodwill gross carrying amount 2,277,597 2,277,786 $ 2,277,784
Goodwill accumulated amortization $ 252,666 252,667  
Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 2 years    
Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years    
Customer lists and contracts      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount $ 732,098 731,156  
Accumulated Amortization 665,095 640,635  
Customer lists and contracts | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 732,098 731,156  
Accumulated Amortization $ 665,095 640,635  
Customer lists and contracts | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 7 years    
Customer lists and contracts | Minimum | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 7 years    
Customer lists and contracts | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 10 years    
Customer lists and contracts | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 10 years    
Non-competition agreements      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount $ 71,960 71,960  
Accumulated Amortization 66,894 66,455  
Non-competition agreements | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 71,960 71,960  
Accumulated Amortization $ 66,894 66,455  
Non-competition agreements | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 3 years    
Non-competition agreements | Minimum | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 3 years    
Non-competition agreements | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years    
Non-competition agreements | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years    
Site locations      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years    
Gross Carrying Amount $ 2,982,504 2,955,324  
Accumulated Amortization $ 2,002,272 1,891,078  
Site locations | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years    
Gross Carrying Amount $ 2,982,504 2,955,324  
Accumulated Amortization 2,002,272 1,891,078  
Other      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 52,761 52,578  
Accumulated Amortization 42,461 41,416  
Other | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 52,215 52,033  
Accumulated Amortization $ 42,383 $ 41,338  
Other | Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 2 years    
Other | Minimum | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 2 years    
Other | Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years    
Other | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES      
Finite-Lived Intangible Assets [Line Items]      
Estimated Life (Years) 15 years