Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Allowance for doubtful accounts	$ 12,458	$ 14,946
Current deferred financing costs	641	445
Noncurrent deferred financing costs	$ 37,446	$ 39,672
Shares held in treasury	685,636	619,681
Series A A Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, cumulative dividends (in dollars per share)	$ 63.80	$ 63.80
Preferred stock, shares authorized (in shares)	5,720	5,720
Preferred stock, shares issued (in shares)	5,720	5,720
Preferred stock, shares outstanding (in shares)	5,720	5,720
Common Class A
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	362,500,000	362,500,000
Common stock, shares issued (in shares)	87,505,031	87,111,327
Common stock, shares outstanding (in shares)	86,819,395	86,491,646
Common Class B
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	37,500,000	37,500,000
Common stock, shares issued (in shares)	14,420,085	14,420,085
Common stock, shares outstanding (in shares)	14,420,085	14,420,085
LAMAR MEDIA CORP. AND SUBSIDIARIES
Allowance for doubtful accounts	$ 12,458	$ 14,946
Current deferred financing costs	641	445
Noncurrent deferred financing costs	$ 37,446	$ 39,672
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	3,000	3,000
Common stock, shares issued (in shares)	100	100
Common stock, shares outstanding (in shares)	100	100