Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Allowance for doubtful accounts	$ 14,967	$ 13,185
Current deferred financing costs	6,212	6,081
Noncurrent deferred financing costs	$ 32,451	$ 18,333
Shares held in treasury	613,718	503,198
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member]
Allowance for doubtful accounts	$ 14,967	$ 13,185
Current deferred financing costs	6,212	6,081
Noncurrent deferred financing costs	$ 32,451	$ 18,333
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000	3,000
Common stock, shares issued	100	100
Common stock, shares outstanding	100	100
Series AA Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, cumulative dividends	$ 63.80	$ 63.80
Preferred stock, shares authorized	5,720	5,720
Preferred stock, shares issued	5,720	5,720
Preferred stock, shares outstanding	5,720	5,720
Common Class A [Member]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	362,500,000	362,500,000
Common stock, shares issued	86,948,957	86,596,498
Common stock, shares outstanding	86,335,239	86,093,300
Common Class B [Member]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	37,500,000	37,500,000
Common stock, shares issued	14,420,085	14,420,085
Common stock, shares outstanding	14,420,085	14,420,085