Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	LAMAR MEDIA CORP [Member]	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] LAMAR MEDIA CORP [Member]	Accumulated Comprehensive Income (Loss) [Member]	Accumulated Comprehensive Income (Loss) [Member] LAMAR MEDIA CORP [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] LAMAR MEDIA CORP [Member]
Beginning Balance at Dec. 31, 2013	$ 932,946	$ 884,490	$ 97	$ 15	$ (893,831)	$ 2,470,375	$ 2,644,015	$ 3,867	$ 3,867	$ (647,577)	$ (1,763,392)
Non-cash compensation	17,600					17,600
Contribution from parent		38,201					38,201
Exercise of stock options	16,247		1			16,246
Foreign currency translations		(1,413)							(1,413)
Issuance of shares of common stock through employee purchase plan	4,368					4,368
Tax benefit (shortfall) related to options exercised	(13)					(13)
Purchase of treasury stock	(2,987)				(2,987)
Retirement of shares of treasury stock			(17)		896,818	(896,801)
Foreign currency translation	(1,413)							(1,413)
Net income	253,518	287,035								253,518	287,035
Dividend to parent		(241,422)									(241,422)
Dividends-distributions to common shareholders	(238,435)									(238,435)
Dividends	(365)									(365)
Ending Balance at Dec. 31, 2014	981,466	966,891	81	15		1,611,775	2,682,216	2,454	2,454	(632,859)	(1,717,779)
Non-cash compensation	23,883					23,883
Contribution from parent		52,263					52,263
Exercise of stock options	23,372		1			23,371
Foreign currency translations		(3,632)							(3,632)
Issuance of shares of common stock through employee purchase plan	5,027					5,027
Tax benefit (shortfall) related to options exercised	(18)					(18)
Purchase of treasury stock	(6,099)				(6,099)
Foreign currency translation	(3,632)							(3,632)
Net income	262,570	262,903								262,570	262,903
Dividend to parent		(271,244)									(271,244)
Dividends-distributions to common shareholders	(265,145)									(265,145)
Dividends	(365)									(365)
Ending Balance at Dec. 31, 2015	1,021,059	1,007,181	82	15	(6,099)	1,664,038	2,734,479	(1,178)	(1,178)	(635,799)	(1,726,120)
Non-cash compensation	26,177					26,177
Contribution from parent		49,274					49,274
Exercise of stock options	17,152		1			17,151
Foreign currency translations		554							554
Issuance of shares of common stock through employee purchase plan	5,930					5,930
Tax benefit (shortfall) related to options exercised	16					16
Purchase of treasury stock	(6,204)				(6,204)
Foreign currency translation	554							554
Net income	298,809	299,181								298,809	299,181
Dividend to parent		(299,804)									(299,804)
Dividends-distributions to common shareholders	(293,600)									(293,600)
Dividends	(365)									(365)
Ending Balance at Dec. 31, 2016	$ 1,069,528	$ 1,056,386	$ 83	$ 15	$ (12,303)	$ 1,713,312	$ 2,783,753	$ (624)	$ (624)	$ (630,955)	$ (1,726,743)