Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
ASSETS
Total current assets	$ 363,653	$ 281,732
Net property, plant and equipment	1,181,418	1,095,137
Other assets	38,519	37,395
Total assets	3,912,521	3,363,744
Current liabilities:
Current maturities of long-term debt, net of deferred financing costs	23,369	16,509
Total current liabilities	268,679	236,830
Long-term debt, net of deferred financing costs	2,369,308	1,874,941
Total liabilities	2,872,790	2,342,685
Stockholders’ equity	1,039,731	1,021,059
Total liabilities and stockholders’ equity	3,912,521	3,363,744
LAMAR MEDIA CORP [Member]
ASSETS
Total current assets	363,153	281,232
Net property, plant and equipment	1,181,418	1,095,137
Intangibles and goodwill, net	2,318,312	1,938,861
Other assets	33,232	32,110
Total assets	3,896,115	3,347,340
Current liabilities:
Current maturities of long-term debt, net of deferred financing costs	23,369	16,509
Other current liabilities	242,420	215,841
Total current liabilities	265,789	232,350
Long-term debt, net of deferred financing costs	2,369,308	1,876,895
Other noncurrent liabilities	234,803	230,914
Total liabilities	2,869,900	2,340,159
Stockholders’ equity	1,026,215	1,007,181
Total liabilities and stockholders’ equity	3,896,115	3,347,340
LAMAR MEDIA CORP [Member] | Lamar Media [Member]
ASSETS
Total current assets	20,648	6,086
Other assets	3,459,089	2,943,826
Total assets	3,479,737	2,949,912
Current liabilities:
Current maturities of long-term debt, net of deferred financing costs	23,369	16,509
Other current liabilities	39,310	29,268
Total current liabilities	62,679	45,777
Long-term debt, net of deferred financing costs	2,369,308	1,876,895
Other noncurrent liabilities	21,535	20,059
Total liabilities	2,453,522	1,942,731
Stockholders’ equity	1,026,215	1,007,181
Total liabilities and stockholders’ equity	3,479,737	2,949,912
LAMAR MEDIA CORP [Member] | Guarantor Subsidiaries [Member]
ASSETS
Total current assets	309,644	245,685
Net property, plant and equipment	1,159,264	1,072,595
Intangibles and goodwill, net	2,284,583	1,904,096
Other assets	11,392	11,451
Total assets	3,764,883	3,233,827
Current liabilities:
Other current liabilities	178,396	163,955
Total current liabilities	178,396	163,955
Other noncurrent liabilities	212,671	210,233
Total liabilities	391,067	374,188
Stockholders’ equity	3,373,816	2,859,639
Total liabilities and stockholders’ equity	3,764,883	3,233,827
LAMAR MEDIA CORP [Member] | Non-Guarantor Subsidiaries [Member]
ASSETS
Total current assets	32,861	29,461
Net property, plant and equipment	22,154	22,542
Intangibles and goodwill, net	33,729	34,765
Other assets	247	535
Total assets	88,991	87,303
Current liabilities:
Other current liabilities	24,714	22,618
Total current liabilities	24,714	22,618
Other noncurrent liabilities	53,211	53,659
Total liabilities	77,925	76,277
Stockholders’ equity	11,066	11,026
Total liabilities and stockholders’ equity	88,991	87,303
LAMAR MEDIA CORP [Member] | Eliminations [Member]
ASSETS
Other assets	(3,437,496)	(2,923,702)
Total assets	(3,437,496)	(2,923,702)
Current liabilities:
Other noncurrent liabilities	(52,614)	(53,037)
Total liabilities	(52,614)	(53,037)
Stockholders’ equity	(3,384,882)	(2,870,665)
Total liabilities and stockholders’ equity	$ (3,437,496)	$ (2,923,702)