Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net revenues	$ 361,026	$ 346,362
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	138,293	131,844
General and administrative expenses (exclusive of depreciation and amortization)	70,208	72,031
Corporate expenses (exclusive of depreciation and amortization)	21,104	16,633
Depreciation and amortization	56,840	51,425
Loss (gain) on disposition of assets	8,701	(1,036)
Total Operating Expenses	295,146	270,897
Operating Income (Loss)	65,880	75,465
Other expense (income)
Loss on extinguishment of debt	15,429
Interest income	(24)	(4)
Interest expense	33,579	31,483
Non-operating (Income) Expenses	48,984	31,479
Income before income tax expense	16,896	43,986
Income tax expense	1,844	2,199
Net Income (Loss)	15,052	41,787
Cash dividends declared and paid on preferred stock	91	91
Net income applicable to common stock	$ 14,961	$ 41,696
Earnings per share:
Basic earnings per share	$ 0.15	$ 0.43
Diluted earnings per share	0.15	0.42
Cash dividends declared per share of common stock	$ 0.91	$ 0.83
Weighted average common shares used in computing earnings per share:
Weighted average common shares outstanding basic	98,301,551	97,575,481
Weighted average common shares outstanding diluted	98,726,934	98,149,974
Statements of Comprehensive Income
Net Income (Loss)	$ 15,052	$ 41,787
Other comprehensive (loss) income
Foreign currency translation adjustments	(543)	143
Other Comprehensive Income (Loss)	14,509	41,930
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member]
Net revenues	361,026	346,362
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	138,293	131,844
General and administrative expenses (exclusive of depreciation and amortization)	70,208	72,031
Corporate expenses (exclusive of depreciation and amortization)	20,998	16,527
Depreciation and amortization	56,840	51,425
Loss (gain) on disposition of assets	8,701	(1,036)
Total Operating Expenses	295,040	270,791
Operating Income (Loss)	65,986	75,571
Other expense (income)
Loss on extinguishment of debt	15,429
Interest income	(24)	(4)
Interest expense	33,579	31,483
Non-operating (Income) Expenses	48,984	31,479
Income before income tax expense	17,002	44,092
Income tax expense	1,844	2,199
Net Income (Loss)	15,158	41,893
Statements of Comprehensive Income
Net Income (Loss)	15,158	41,893
Other comprehensive (loss) income
Foreign currency translation adjustments	(543)	143
Other Comprehensive Income (Loss)	$ 14,615	$ 42,036