Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net revenues	$ 397,078	$ 387,528	$ 743,440	$ 726,061
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	135,075	132,725	266,919	261,450
General and administrative expenses (exclusive of depreciation and amortization)	65,921	66,457	137,952	133,247
Corporate expenses (exclusive of depreciation and amortization)	16,730	20,047	33,363	36,073
Depreciation and amortization	51,782	51,933	103,207	103,422
(Gain) loss on disposition of assets	(607)	(705)	(1,643)	(12,032)
Total Operating Expenses	268,901	270,457	539,798	522,160
Operating income	128,177	117,071	203,642	203,901
Other expense (income)
Loss on extinguishment of debt	71	56	71	3,198
Interest income		(3)	(4)	(4)
Interest expense	31,979	31,299	63,462	61,367
Non-operating (Income) Expenses	32,050	31,352	63,529	64,561
Income before income tax expense	96,127	85,719	140,113	139,340
Income tax expense	3,733	3,810	5,932	6,117
Net income	92,394	81,909	134,181	133,223
Cash dividends declared and paid on preferred stock	91	91	182	182
Net income applicable to common stock	$ 92,303	$ 81,818	$ 133,999	$ 133,041
Earnings per share:
Basic earnings per share	$ 0.94	$ 0.84	$ 1.37	$ 1.37
Diluted earnings per share	0.94	0.84	1.36	1.36
Cash dividends declared per share of common stock	$ 0.83	$ 0.75	$ 1.66	$ 1.50
Weighted average common shares used in computing earnings per share:
Weighted average common shares outstanding basic	97,941,766	97,121,619	97,759,636	96,956,535
Weighted average common shares outstanding diluted	98,442,860	97,731,467	98,276,283	97,523,379
Statements of Comprehensive Income
Net income	$ 92,394	$ 81,909	$ 134,181	$ 133,223
Other comprehensive income
Foreign currency translation adjustments	745	11	888	1,479
Comprehensive income	93,139	81,920	135,069	134,702
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member]
Net revenues	397,078	387,528	743,440	726,061
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	135,075	132,725	266,919	261,450
General and administrative expenses (exclusive of depreciation and amortization)	65,921	66,457	137,952	133,247
Corporate expenses (exclusive of depreciation and amortization)	16,645	19,958	33,172	35,891
Depreciation and amortization	51,782	51,933	103,207	103,422
(Gain) loss on disposition of assets	(607)	(705)	(1,643)	(12,032)
Total Operating Expenses	268,816	270,368	539,607	521,978
Operating income	128,262	117,160	203,833	204,083
Other expense (income)
Loss on extinguishment of debt	71	56	71	3,198
Interest income		(3)	(4)	(4)
Interest expense	31,979	31,299	63,462	61,367
Non-operating (Income) Expenses	32,050	31,352	63,529	64,561
Income before income tax expense	96,212	85,808	140,304	139,522
Income tax expense	3,733	3,810	5,932	6,117
Net income	92,479	81,998	134,372	133,405
Statements of Comprehensive Income
Net income	92,479	81,998	134,372	133,405
Other comprehensive income
Foreign currency translation adjustments	745	11	888	1,479
Comprehensive income	$ 93,224	$ 82,009	$ 135,260	$ 134,884