Condensed Consolidating Statement of Cash Flows (Unaudited) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net cash provided by (used in) operating activities	$ 102,038	$ 83,318
Cash flows from investing activities:
Acquisitions	(55,293)	(3,333)
Capital expenditures	(28,759)	(16,332)
Proceeds from disposition of assets and investments	710	1,842
Net cash used in investing activities	(83,342)	(17,823)
Cash flows from financing activities:
Proceeds received from revolving credit facility	165,000	25,000
Payments on revolving credit facility	(50,000)	0
Principal payments on long-term debt	(92)	(96)
Principal payments on financing leases	(333)	(483)
Proceeds received from note offering	0	550,000
Redemption of senior notes	0	(668,688)
Debt issuance costs	0	(8,067)
Distributions to non-controlling interest	(46)	(24)
Net cash used in financing activities	(2,713)	(144,088)
Effect of exchange rate changes in cash and cash equivalents	107	70
Net increase (decrease) in cash and cash equivalents	16,090	(78,523)
Cash and cash equivalents at beginning of period	99,788	121,569
Cash and cash equivalents at end of period	115,878	43,046
LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	70,396	68,792
Cash flows from investing activities:
Acquisitions	(55,293)	(3,333)
Capital expenditures	(28,759)	(16,332)
Proceeds from disposition of assets and investments	710	1,842
Investment in subsidiaries	0	0
(Increase) decrease in intercompany notes receivable	0	0
Net cash used in investing activities	(83,342)	(17,823)
Cash flows from financing activities:
Proceeds received from revolving credit facility	165,000	25,000
Payments on revolving credit facility	(50,000)
Principal payments on long-term debt	(92)	(96)
Principal payments on financing leases	(333)	(483)
Proceeds received from note offering		550,000
Redemption of senior notes		(668,688)
Proceeds received from senior credit facility term loans		32,500
Debt issuance costs		(8,067)
Intercompany loan proceeds (payments)	0	0
Distributions to non-controlling interest	(46)	(24)
Dividends (to) from parent	(122,047)	(81,535)
Contributions from (to) parent	36,447	21,831
Net cash used in financing activities	28,929	(129,562)
Effect of exchange rate changes in cash and cash equivalents	107	70
Net increase (decrease) in cash and cash equivalents	16,090	(78,523)
Cash and cash equivalents at beginning of period	99,288	121,069
Cash and cash equivalents at end of period	115,378	42,546
Eliminations | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(69,036)	(104,957)
Cash flows from investing activities:
Acquisitions	0	0
Capital expenditures	0	0
Proceeds from disposition of assets and investments	0	0
Investment in subsidiaries	55,293	3,333
(Increase) decrease in intercompany notes receivable	6,090	(30,604)
Net cash used in investing activities	61,383	(27,271)
Cash flows from financing activities:
Proceeds received from revolving credit facility	0	0
Payments on revolving credit facility	0
Principal payments on long-term debt	0	0
Principal payments on financing leases	0	0
Proceeds received from note offering		0
Redemption of senior notes		0
Proceeds received from senior credit facility term loans		0
Debt issuance costs		0
Intercompany loan proceeds (payments)	(6,090)	30,604
Distributions to non-controlling interest	0	0
Dividends (to) from parent	69,036	104,957
Contributions from (to) parent	(55,293)	(3,333)
Net cash used in financing activities	7,653	132,228
Effect of exchange rate changes in cash and cash equivalents	0	0
Net increase (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	44,116	61,766
Cash flows from investing activities:
Acquisitions	0	0
Capital expenditures	0	0
Proceeds from disposition of assets and investments	0	0
Investment in subsidiaries	(55,293)	(3,333)
(Increase) decrease in intercompany notes receivable	(6,090)	30,604
Net cash used in investing activities	(61,383)	27,271
Cash flows from financing activities:
Proceeds received from revolving credit facility	165,000	25,000
Payments on revolving credit facility	(50,000)
Principal payments on long-term debt	0	0
Principal payments on financing leases	0	0
Proceeds received from note offering		550,000
Redemption of senior notes		(668,688)
Proceeds received from senior credit facility term loans		0
Debt issuance costs		(8,067)
Intercompany loan proceeds (payments)	0	0
Distributions to non-controlling interest	0	0
Dividends (to) from parent	(122,047)	(81,535)
Contributions from (to) parent	36,447	21,831
Net cash used in financing activities	29,400	(161,459)
Effect of exchange rate changes in cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	12,133	(72,422)
Cash and cash equivalents at beginning of period	91,023	110,588
Cash and cash equivalents at end of period	103,156	38,166
Guarantor Subsidiaries | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	97,816	102,064
Cash flows from investing activities:
Acquisitions	(55,293)	(3,333)
Capital expenditures	(27,851)	(15,294)
Proceeds from disposition of assets and investments	710	1,842
Investment in subsidiaries	0	0
(Increase) decrease in intercompany notes receivable	0	0
Net cash used in investing activities	(82,434)	(16,785)
Cash flows from financing activities:
Proceeds received from revolving credit facility	0	0
Payments on revolving credit facility	0
Principal payments on long-term debt	(92)	(96)
Principal payments on financing leases	(333)	(483)
Proceeds received from note offering		0
Redemption of senior notes		0
Proceeds received from senior credit facility term loans		0
Debt issuance costs		0
Intercompany loan proceeds (payments)	94	16,770
Distributions to non-controlling interest	0	0
Dividends (to) from parent	(69,036)	(104,957)
Contributions from (to) parent	55,293	3,333
Net cash used in financing activities	(14,074)	(85,433)
Effect of exchange rate changes in cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	1,308	(154)
Cash and cash equivalents at beginning of period	3,494	1,732
Cash and cash equivalents at end of period	4,802	1,578
Non- Guarantor Subsidiaries | Reportable Legal Entities | LAMAR MEDIA CORP. AND SUBSIDIARIES
Cash flows from operating activities:
Net cash provided by (used in) operating activities	(2,500)	9,919
Cash flows from investing activities:
Acquisitions	0	0
Capital expenditures	(908)	(1,038)
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 investing activities	(908)	(1,038)
Cash flows from financing activities:
Proceeds received from revolving credit facility	0	0
Payments on revolving credit facility	0
Principal payments on long-term debt	0	0
Principal payments on financing leases	0	0
Proceeds received from note offering		0
Redemption of senior notes		0
Proceeds received from senior credit facility term loans		32,500
Debt issuance costs		0
Intercompany loan proceeds (payments)	5,996	(47,374)
Distributions to non-controlling interest	(46)	(24)
Dividends (to) from parent	0	0
Contributions from (to) parent	0	0
Net cash used in financing activities	5,950	(14,898)
Effect of exchange rate changes in cash and cash equivalents	107	70
Net increase (decrease) in cash and cash equivalents	2,649	(5,947)
Cash and cash equivalents at beginning of period	4,771	8,749
Cash and cash equivalents at end of period	$ 7,420	$ 2,802