Non-cash Financing and Investing Activities - Additional Information (Detail) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Non-cash investing activities	$ 0	$ 0	$ 0
Non cash financing activities related to financing lease liabilities			$ 19,891,000
Non-cash financing activity	$ 0	$ 0

Transaction affecting assets or liabilities which did not result in cash receipts or payments during the period.

No definition available.

Name:	lamr_NonCashFinancingTransaction
Namespace Prefix:	lamr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration