Summarized Financial Information of Subsidiaries - Condensed Consolidating Statement of Cash Flows (Unaudited) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ 306,873	$ 312,630
Cash flows from investing activities:
Acquisitions	(42,122)	(234,292)
Capital expenditures	(93,007)	(75,802)
Proceeds from disposition of assets and investments	5,120	1,716
Net cash (used in) provided by investing activities	(130,009)	(308,378)
Cash flows from financing activities:
Proceeds received from revolving credit facility	198,000	400,000
Payments on revolving credit facility	(110,000)	(240,000)
Principal payments on long-term debt	(188)	(182)
Principal payments on financing leases	(666)	(666)
Payments on accounts receivable securitization program	(47,000)	0
Proceeds received from accounts receivable securitization program	31,900	65,000
Debt issuance costs	(25)	(200)
Distributions to non-controlling interest	(367)	(98)
Net cash used in financing activities	(181,780)	(12,283)
Effect of exchange rate changes in cash and cash equivalents	76	(71)
Net decrease in cash and cash equivalents	(4,840)	(8,102)
Cash and cash equivalents at beginning of period	52,619	99,788
Cash and cash equivalents at end of period	47,779	91,686
LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	284,639	279,320
Cash flows from investing activities:
Acquisitions	(42,122)	(234,292)
Capital expenditures	(93,007)	(75,802)
Proceeds from disposition of assets and investments	5,120	1,716
Investment in subsidiaries	0	0
(Increase) decrease in intercompany notes receivable	0	0
Net cash (used in) provided by investing activities	(130,009)	(308,378)
Cash flows from financing activities:
Proceeds received from revolving credit facility	198,000	400,000
Payments on revolving credit facility	(110,000)	(240,000)
Principal payments on long-term debt	(188)	(182)
Principal payments on financing leases	(666)	(666)
Payments on accounts receivable securitization program	(47,000)
Proceeds received from accounts receivable securitization program	31,900	65,000
Debt issuance costs	(25)	(200)
Intercompany loan (payments) proceeds	0	0
Distributions to non-controlling interest	(367)	(98)
Dividends (to) from parent	(260,945)	(243,856)
Contributions from (to) parent	29,745	41,029
Net cash used in financing activities	(159,546)	21,027
Effect of exchange rate changes in cash and cash equivalents	76	(71)
Net decrease in cash and cash equivalents	(4,840)	(8,102)
Cash and cash equivalents at beginning of period	52,119	99,288
Cash and cash equivalents at end of period	47,279	91,186
Eliminations | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(263,976)	(253,565)
Cash flows from investing activities:
Acquisitions	0	0
Capital expenditures	0	0
Proceeds from disposition of assets and investments	0	0
Investment in subsidiaries	42,122	234,292
(Increase) decrease in intercompany notes receivable	20,431	(56,117)
Net cash (used in) provided by investing activities	62,553	178,175
Cash flows from financing activities:
Proceeds received from revolving credit facility	0	0
Payments on revolving credit facility	0	0
Principal payments on long-term debt	0	0
Principal payments on financing leases	0	0
Payments on accounts receivable securitization program	0
Proceeds received from accounts receivable securitization program	0	0
Debt issuance costs	0	0
Intercompany loan (payments) proceeds	(20,431)	56,117
Distributions to non-controlling interest	0	0
Dividends (to) from parent	263,976	253,565
Contributions from (to) parent	(42,122)	(234,292)
Net cash used in financing activities	201,423	75,390
Effect of exchange rate changes in cash and cash equivalents	0	0
Net decrease in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Lamar Media Corp. | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	202,750	201,763
Cash flows from investing activities:
Acquisitions	0	0
Capital expenditures	0	0
Proceeds from disposition of assets and investments	0	0
Investment in subsidiaries	(42,122)	(234,292)
(Increase) decrease in intercompany notes receivable	(20,431)	56,117
Net cash (used in) provided by investing activities	(62,553)	(178,175)
Cash flows from financing activities:
Proceeds received from revolving credit facility	198,000	400,000
Payments on revolving credit facility	(110,000)	(240,000)
Principal payments on long-term debt	0	0
Principal payments on financing leases	0	0
Payments on accounts receivable securitization program	0
Proceeds received from accounts receivable securitization program	0	0
Debt issuance costs	0	0
Intercompany loan (payments) proceeds	0	0
Distributions to non-controlling interest	0	0
Dividends (to) from parent	(260,945)	(243,856)
Contributions from (to) parent	29,745	41,029
Net cash used in financing activities	(143,200)	(42,827)
Effect of exchange rate changes in cash and cash equivalents	0	0
Net decrease in cash and cash equivalents	(3,003)	(19,239)
Cash and cash equivalents at beginning of period	39,729	91,023
Cash and cash equivalents at end of period	36,726	71,784
Guarantor Subsidiaries | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	389,003	364,272
Cash flows from investing activities:
Acquisitions	(42,122)	(234,292)
Capital expenditures	(89,858)	(73,562)
Proceeds from disposition of assets and investments	5,120	1,716
Investment in subsidiaries	0	0
(Increase) decrease in intercompany notes receivable	0	0
Net cash (used in) provided by investing activities	(126,860)	(306,138)
Cash flows from financing activities:
Proceeds received from revolving credit facility	0	0
Payments on revolving credit facility	0	0
Principal payments on long-term debt	(188)	(182)
Principal payments on financing leases	(666)	(666)
Payments on accounts receivable securitization program	0
Proceeds received from accounts receivable securitization program	0	0
Debt issuance costs	0	0
Intercompany loan (payments) proceeds	(38,623)	(33,387)
Distributions to non-controlling interest	(220)	0
Dividends (to) from parent	(263,976)	(253,565)
Contributions from (to) parent	42,122	234,292
Net cash used in financing activities	(261,551)	(53,508)
Effect of exchange rate changes in cash and cash equivalents	0	0
Net decrease in cash and cash equivalents	592	4,626
Cash and cash equivalents at beginning of period	1,285	3,494
Cash and cash equivalents at end of period	1,877	8,120
Non- Guarantor Subsidiaries | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(43,138)	(33,150)
Cash flows from investing activities:
Acquisitions	0	0
Capital expenditures	(3,149)	(2,240)
Proceeds from disposition of assets and investments	0	0
Investment in subsidiaries	0	0
(Increase) decrease in intercompany notes receivable	0	0
Net cash (used in) provided by investing activities	(3,149)	(2,240)
Cash flows from financing activities:
Proceeds received from revolving credit facility	0	0
Payments on revolving credit facility	0	0
Principal payments on long-term debt	0	0
Principal payments on financing leases	0	0
Payments on accounts receivable securitization program	(47,000)
Proceeds received from accounts receivable securitization program	31,900	65,000
Debt issuance costs	(25)	(200)
Intercompany loan (payments) proceeds	59,054	(22,730)
Distributions to non-controlling interest	(147)	(98)
Dividends (to) from parent	0	0
Contributions from (to) parent	0	0
Net cash used in financing activities	43,782	41,972
Effect of exchange rate changes in cash and cash equivalents	76	(71)
Net decrease in cash and cash equivalents	(2,429)	6,511
Cash and cash equivalents at beginning of period	11,105	4,771
Cash and cash equivalents at end of period	$ 8,676	$ 11,282