v3.26.1
Segment Reporting (Subsidiary) - Financial Performance by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Condensed Income Statements, Captions [Line Items]        
Total net revenues $ 616,749 $ 579,311 $ 1,144,753 $ 1,084,741
Adjusted EBITDA 303,358 278,383 529,686 488,604
Operating Segments        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 616,749 579,311 1,144,753 1,084,741
Total advertising expenses 285,469 273,835 560,555 542,658
Operating Segments | Billboard        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 552,323 512,317 1,020,947 957,214
Total advertising expenses 237,339 221,892 464,849 438,823
Adjusted EBITDA 314,984 290,425 556,098 518,391
Operating Segments | Other        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 64,426 66,994 123,806 127,527
Total advertising expenses 48,130 51,943 95,706 103,835
Adjusted EBITDA 16,296 15,051 28,100 23,692
Corporate expenses        
Condensed Income Statements, Captions [Line Items]        
Adjusted EBITDA (27,922) (27,093) (54,512) (53,479)
LAMAR MEDIA CORP. AND SUBSIDIARIES        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 616,749 579,311 1,144,753 1,084,741
Adjusted EBITDA 303,513 278,533 529,967 488,863
LAMAR MEDIA CORP. AND SUBSIDIARIES | Operating Segments        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 616,749 579,311 1,144,753 1,084,741
Total advertising expenses 285,470 273,835 560,553 542,658
LAMAR MEDIA CORP. AND SUBSIDIARIES | Operating Segments | Billboard        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 552,323 512,317 1,020,947 957,214
Total advertising expenses 237,339 221,892 464,849 438,823
Adjusted EBITDA 314,984 290,425 556,098 518,391
LAMAR MEDIA CORP. AND SUBSIDIARIES | Operating Segments | Other        
Condensed Income Statements, Captions [Line Items]        
Total net revenues 64,426 66,994 123,806 127,527
Total advertising expenses 48,131 51,943 95,704 103,835
Adjusted EBITDA 16,295 15,051 28,102 23,692
LAMAR MEDIA CORP. AND SUBSIDIARIES | Corporate expenses        
Condensed Income Statements, Captions [Line Items]        
Adjusted EBITDA $ (27,766) $ (26,943) $ (54,233) $ (53,220)