Condensed Consolidating Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net revenues	$ 370,881	$ 406,569
Revenue, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
Operating expenses
Direct advertising expenses	$ 131,215	$ 149,494
Cost, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
General and administrative expenses	$ 72,649	$ 82,204
Corporate expenses	17,760	18,491
Depreciation and amortization	60,749	62,313
Gain on disposition of assets	(415)	(2,504)
Total operating expenses	281,958	309,998
Operating income	88,923	96,571
Loss on debt extinguishment	21,604	18,179
Income before income tax expense	39,339	42,029
Income tax expense	1,010	1,536
Net income	38,329	40,493
Statements of Comprehensive Income
Net income	38,329	40,493
Comprehensive income	38,533	38,895
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member]
Net revenues	$ 370,881	$ 406,569
Revenue, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
Operating expenses
Direct advertising expenses	$ 131,215	$ 149,494
Cost, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
General and administrative expenses	$ 72,649	$ 82,204
Corporate expenses	17,623	18,367
Depreciation and amortization	60,749	62,313
Gain on disposition of assets	(415)	(2,504)
Total operating expenses	281,821	309,874
Operating income	89,060	96,695
Equity in (earnings) loss of subsidiaries	0	0
Loss on debt extinguishment	21,604	18,179
Interest expense (income), net	27,980	36,363
Income before income tax expense	39,476	42,153
Income tax expense	1,010	1,536
Net income	38,466	40,617
Statements of Comprehensive Income
Net income	38,466	40,617
Foreign currency translation adjustments	204	(1,598)
Comprehensive income	38,670	39,019
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Net revenues	$ 363,612	$ 396,631
Revenue, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
Operating expenses
Direct advertising expenses	$ 127,415	$ 143,052
Cost, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
General and administrative expenses	$ 71,951	$ 80,528
Corporate expenses	17,366	18,087
Depreciation and amortization	60,066	61,905
Gain on disposition of assets	(415)	(2,504)
Total operating expenses	276,383	301,068
Operating income	87,229	95,563
Equity in (earnings) loss of subsidiaries	0	0
Loss on debt extinguishment	0	0
Interest expense (income), net	(18)	(35)
Income before income tax expense	87,247	95,598
Income tax expense	632	1,342
Net income	86,615	94,256
Statements of Comprehensive Income
Net income	86,615	94,256
Foreign currency translation adjustments	0	0
Comprehensive income	86,615	94,256
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Net revenues	$ 7,699	$ 10,452
Revenue, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
Operating expenses
Direct advertising expenses	$ 4,230	$ 6,956
Cost, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
General and administrative expenses	$ 698	$ 1,676
Corporate expenses	257	280
Depreciation and amortization	683	408
Gain on disposition of assets	0	0
Total operating expenses	5,868	9,320
Operating income	1,831	1,132
Equity in (earnings) loss of subsidiaries	0	0
Loss on debt extinguishment	0	0
Interest expense (income), net	244	980
Income before income tax expense	1,587	152
Income tax expense	378	194
Net income	1,209	(42)
Statements of Comprehensive Income
Net income	1,209	(42)
Foreign currency translation adjustments	204	(1,598)
Comprehensive income	1,413	(1,640)
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Reportable Legal Entities [Member] | Lamar Media [Member]
Net revenues	$ 0	$ 0
Revenue, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
Operating expenses
Direct advertising expenses	$ 0	$ 0
Cost, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
General and administrative expenses	$ 0	$ 0
Corporate expenses	0	0
Depreciation and amortization	0	0
Gain on disposition of assets	0	0
Total operating expenses	0	0
Operating income	0	0
Equity in (earnings) loss of subsidiaries	(87,824)	(94,214)
Loss on debt extinguishment	21,604	18,179
Interest expense (income), net	27,754	35,418
Income before income tax expense	38,466	40,617
Income tax expense	0	0
Net income	38,466	40,617
Statements of Comprehensive Income
Net income	38,466	40,617
Foreign currency translation adjustments	0	0
Comprehensive income	38,466	40,617
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Consolidation, Eliminations [Member]
Net revenues	$ (430)	$ (514)
Revenue, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
Operating expenses
Direct advertising expenses	$ (430)	$ (514)
Cost, Product and Service [Extensible List]	Advertising [Member]	Advertising [Member]
General and administrative expenses	$ 0	$ 0
Corporate expenses	0	0
Depreciation and amortization	0	0
Gain on disposition of assets	0	0
Total operating expenses	(430)	(514)
Operating income	0	0
Equity in (earnings) loss of subsidiaries	87,824	94,214
Loss on debt extinguishment	0	0
Interest expense (income), net	0	0
Income before income tax expense	(87,824)	(94,214)
Income tax expense	0	0
Net income	(87,824)	(94,214)
Statements of Comprehensive Income
Net income	(87,824)	(94,214)
Foreign currency translation adjustments	0	0
Comprehensive income	$ (87,824)	$ (94,214)