Condensed Consolidating Balance Sheets (Unaudited) (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
ASSETS
Total current assets	$ 407,646	$ 388,607
Net property, plant and equipment	1,341,469	1,337,274
Operating lease right of use assets	1,236,538	1,224,672
Other assets	94,177	98,448
Total assets	6,093,863	6,047,494
Current liabilities:
Current maturities of long-term debt	174,836	174,778
Current operating lease liabilities	166,275	198,286
Total current liabilities	571,669	662,965
Long-term debt	2,955,138	2,838,817
Operating lease liabilities	1,007,403	995,356
Total liabilities	4,870,002	4,830,405
Stockholder's equity	1,223,861	1,217,089	$ 1,181,507	$ 1,202,768
Total liabilities and stockholders’ equity	6,093,863	6,047,494
LAMAR MEDIA CORP. AND SUBSIDIARIES
ASSETS
Total current assets	407,146	388,107
Net property, plant and equipment	1,341,469	1,337,274
Operating lease right of use assets	1,236,538	1,224,672
Intangible assets, net	2,987,237	2,970,983
Other assets	105,011	109,995
Total assets	6,077,401	6,031,031
Current liabilities:
Current maturities of long-term debt	174,836	174,778
Current operating lease liabilities	166,275	198,286
Other current liabilities	222,610	282,181
Total current liabilities	563,721	655,245
Long-term debt	2,955,138	2,838,817
Operating lease liabilities	1,007,403	995,356
Other noncurrent liabilities	335,792	333,267
Total liabilities	4,862,054	4,822,685
Stockholder's equity	1,215,347	1,208,346
Total liabilities and stockholders’ equity	6,077,401	6,031,031
Eliminations | LAMAR MEDIA CORP. AND SUBSIDIARIES
ASSETS
Total current assets	0	0
Net property, plant and equipment	0	0
Operating lease right of use assets	0	0
Intangible assets, net	0	0
Other assets	(4,687,772)	(4,576,531)
Total assets	(4,687,772)	(4,576,531)
Current liabilities:
Current maturities of long-term debt	0	0
Current operating lease liabilities	0	0
Other current liabilities	0	0
Total current liabilities	0	0
Long-term debt	0	0
Operating lease liabilities	0	0
Other noncurrent liabilities	(469,753)	(463,607)
Total liabilities	(469,753)	(463,607)
Stockholder's equity	(4,218,019)	(4,112,924)
Total liabilities and stockholders’ equity	(4,687,772)	(4,576,531)
Lamar Media Corp. | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
ASSETS
Total current assets	103,252	91,119
Net property, plant and equipment	0	0
Operating lease right of use assets	0	0
Intangible assets, net	0	0
Other assets	4,298,050	4,188,436
Total assets	4,401,302	4,279,555
Current liabilities:
Current maturities of long-term debt	0	0
Current operating lease liabilities	0	0
Other current liabilities	21,946	22,009
Total current liabilities	21,946	22,009
Long-term debt	2,953,216	2,836,801
Operating lease liabilities	0	0
Other noncurrent liabilities	210,793	212,399
Total liabilities	3,185,955	3,071,209
Stockholder's equity	1,215,347	1,208,346
Total liabilities and stockholders’ equity	4,401,302	4,279,555
Guarantor Subsidiaries | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
ASSETS
Total current assets	35,374	29,379
Net property, plant and equipment	1,325,360	1,321,526
Operating lease right of use assets	1,211,240	1,198,934
Intangible assets, net	2,969,913	2,953,600
Other assets	307,704	311,046
Total assets	5,849,591	5,814,485
Current liabilities:
Current maturities of long-term debt	364	363
Current operating lease liabilities	158,610	190,748
Other current liabilities	189,363	246,030
Total current liabilities	348,337	437,141
Long-term debt	1,922	2,016
Operating lease liabilities	991,095	977,463
Other noncurrent liabilities	296,568	292,194
Total liabilities	1,637,922	1,708,814
Stockholder's equity	4,211,669	4,105,671
Total liabilities and stockholders’ equity	5,849,591	5,814,485
Non- Guarantor Subsidiaries | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
ASSETS
Total current assets	268,520	267,609
Net property, plant and equipment	16,109	15,748
Operating lease right of use assets	25,298	25,738
Intangible assets, net	17,324	17,383
Other assets	187,029	187,044
Total assets	514,280	513,522
Current liabilities:
Current maturities of long-term debt	174,472	174,415
Current operating lease liabilities	7,665	7,538
Other current liabilities	11,301	14,142
Total current liabilities	193,438	196,095
Long-term debt	0	0
Operating lease liabilities	16,308	17,893
Other noncurrent liabilities	298,184	292,281
Total liabilities	507,930	506,269
Stockholder's equity	6,350	7,253
Total liabilities and stockholders’ equity	$ 514,280	$ 513,522