Goodwill and Other Intangible Assets (Subsidiary) - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,708,668	$ 3,416,914
Accumulated Amortization	2,502,043	2,371,737
Goodwill gross carrying amount	2,288,805	2,189,962	$ 2,165,864
Goodwill accumulated amortization	253,536	253,536
LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,708,123	3,416,369
Accumulated Amortization	2,501,965	2,371,660
Goodwill gross carrying amount	2,277,784	2,178,941	$ 2,154,844
Goodwill accumulated amortization	$ 252,667	252,667
Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	2 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years
Customer lists and contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 720,051	676,846
Accumulated Amortization	614,840	587,056
Customer lists and contracts | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	720,051	676,846
Accumulated Amortization	$ 614,840	587,056
Customer lists and contracts | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	7 years
Customer lists and contracts | Minimum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	7 years
Customer lists and contracts | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	10 years
Customer lists and contracts | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	10 years
Non-competition agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 71,599	69,276
Accumulated Amortization	65,647	64,941
Non-competition agreements | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	71,599	69,276
Accumulated Amortization	$ 65,647	64,942
Non-competition agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	3 years
Non-competition agreements | Minimum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	3 years
Non-competition agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years
Non-competition agreements | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years
Site locations
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years
Gross Carrying Amount	$ 2,864,854	2,619,531
Accumulated Amortization	1,781,164	1,680,333
Site locations | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,864,854	2,619,531
Accumulated Amortization	$ 1,781,164	1,680,333
Site locations | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 52,164	51,261
Accumulated Amortization	40,392	39,407
Other | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	51,619	50,716
Accumulated Amortization	$ 40,314	$ 39,329
Other | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	2 years
Other | Minimum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	2 years
Other | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years
Other | Maximum | LAMAR MEDIA CORP. AND SUBSIDIARIES
Finite-Lived Intangible Assets [Line Items]
Estimated Life (Years)	15 years