Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net revenues	$ 384,457	$ 361,026
Type of Revenue [Extensible List]	us-gaap:AdvertisingMember	us-gaap:AdvertisingMember
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	$ 140,470	$ 138,293
Type of Cost, Good or Service [Extensible List]	us-gaap:AdvertisingMember	us-gaap:AdvertisingMember
General and administrative expenses (exclusive of depreciation and amortization)	$ 79,293	$ 70,208
Corporate expenses (exclusive of depreciation and amortization)	17,029	21,104
Depreciation and amortization	61,506	56,840
(Gain) loss on disposition of assets	(4,624)	8,701
Total Operating Expenses	293,674	295,146
Operating income	90,783	65,880
Other expense (income)
Loss on extinguishment of debt		15,429
Interest income	(153)	(24)
Interest expense	37,595	33,579
Non-operating (Income) Expenses	37,442	48,984
Income before income tax expense	53,341	16,896
Income tax expense	2,088	1,844
Net income	51,253	15,052
Cash dividends declared and paid on preferred stock	91	91
Net income applicable to common stock	$ 51,162	$ 14,961
Earnings per share:
Basic earnings per share	$ 0.51	$ 0.15
Diluted earnings per share	0.51	0.15
Cash dividends declared per share of common stock	$ 0.96	$ 0.91
Weighted average common shares used in computing earnings per share:
Weighted average common shares outstanding basic	99,710,406	98,301,551
Weighted average common shares outstanding diluted	99,915,443	98,726,934
Statements of Comprehensive Income
Net income	$ 51,253	$ 15,052
Other comprehensive income (loss)
Foreign currency translation adjustments	259	(543)
Comprehensive income	51,512	14,509
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member]
Net revenues	$ 384,457	$ 361,026
Type of Revenue [Extensible List]	us-gaap:AdvertisingMember	us-gaap:AdvertisingMember
Operating expenses (income)
Direct advertising expenses (exclusive of depreciation and amortization)	$ 140,470	$ 138,293
Type of Cost, Good or Service [Extensible List]	us-gaap:AdvertisingMember	us-gaap:AdvertisingMember
General and administrative expenses (exclusive of depreciation and amortization)	$ 79,293	$ 70,208
Corporate expenses (exclusive of depreciation and amortization)	16,920	20,998
Depreciation and amortization	61,506	56,840
(Gain) loss on disposition of assets	(4,624)	8,701
Total Operating Expenses	293,565	295,040
Operating income	90,892	65,986
Other expense (income)
Loss on extinguishment of debt		15,429
Interest income	(153)	(24)
Interest expense	37,595	33,579
Non-operating (Income) Expenses	37,442	48,984
Income before income tax expense	53,450	17,002
Income tax expense	2,088	1,844
Net income	51,362	15,158
Statements of Comprehensive Income
Net income	51,362	15,158
Other comprehensive income (loss)
Foreign currency translation adjustments	259	(543)
Comprehensive income	$ 51,621	$ 14,615