Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Total current assets	$ 350,344	$ 314,253
Net property, plant and equipment	1,175,037	1,182,715
Total assets	3,924,595	3,898,884
Current liabilities:
Current maturities of long-term debt	39,495	33,916
Total current liabilities	246,120	277,324
Long-term debt, net of deferred financing costs	2,385,411	2,315,267
Total liabilities	2,870,867	2,829,356
Stockholders’ equity	1,053,728	1,069,528
Total liabilities and stockholders’ equity	3,924,595	3,898,884
LAMAR MEDIA CORP [Member]
ASSETS
Total current assets	349,844	313,753
Net property, plant and equipment	1,175,037	1,182,715
Intangibles and goodwill, net	2,346,986	2,352,892
Other assets	36,324	33,120
Total assets	3,908,191	3,882,480
Current liabilities:
Current maturities of long-term debt	39,495	33,916
Other current liabilities	203,166	240,146
Total current liabilities	242,661	274,062
Long-term debt, net of deferred financing costs	2,385,411	2,315,267
Other noncurrent liabilities	239,336	236,765
Total liabilities	2,867,408	2,826,094
Stockholders’ equity	1,040,783	1,056,386
Total liabilities and stockholders’ equity	3,908,191	3,882,480
LAMAR MEDIA CORP [Member] | Reportable Legal Entities [Member] | Lamar Media [Member]
ASSETS
Total current assets	10,574	13,886
Other assets	3,505,632	3,453,161
Total assets	3,516,206	3,467,047
Current liabilities:
Current maturities of long-term debt	39,495	33,916
Other current liabilities	25,593	38,904
Total current liabilities	65,088	72,820
Long-term debt, net of deferred financing costs	2,385,411	2,315,267
Other noncurrent liabilities	24,924	22,574
Total liabilities	2,475,423	2,410,661
Stockholders’ equity	1,040,783	1,056,386
Total liabilities and stockholders’ equity	3,516,206	3,467,047
LAMAR MEDIA CORP [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
ASSETS
Total current assets	307,287	268,091
Net property, plant and equipment	1,152,636	1,161,205
Intangibles and goodwill, net	2,315,934	2,321,160
Other assets	11,185	10,379
Total assets	3,787,042	3,760,835
Current liabilities:
Other current liabilities	158,604	180,107
Total current liabilities	158,604	180,107
Other noncurrent liabilities	213,801	213,916
Total liabilities	372,405	394,023
Stockholders’ equity	3,414,637	3,366,812
Total liabilities and stockholders’ equity	3,787,042	3,760,835
LAMAR MEDIA CORP [Member] | Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
ASSETS
Total current assets	31,983	31,776
Net property, plant and equipment	22,401	21,510
Intangibles and goodwill, net	31,052	31,732
Other assets	167	116
Total assets	85,603	85,134
Current liabilities:
Other current liabilities	18,969	21,135
Total current liabilities	18,969	21,135
Other noncurrent liabilities	57,226	53,609
Total liabilities	76,195	74,744
Stockholders’ equity	9,408	10,390
Total liabilities and stockholders’ equity	85,603	85,134
LAMAR MEDIA CORP [Member] | Eliminations [Member]
ASSETS
Other assets	(3,480,660)	(3,430,536)
Total assets	(3,480,660)	(3,430,536)
Current liabilities:
Other noncurrent liabilities	(56,615)	(53,334)
Total liabilities	(56,615)	(53,334)
Stockholders’ equity	(3,424,045)	(3,377,202)
Total liabilities and stockholders’ equity	$ (3,480,660)	$ (3,430,536)