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Accrued Expenses - Summary of Accrued Expenses (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Accounts Payable And Accrued Liabilities Current [Line Items]    
Payroll $ 11,311 $ 12,854
Interest 23,451 31,888
Insurance benefits 13,090 12,537
Accrued lease expense 37,346 32,100
Other 13,726 10,082
Total 98,924 99,461
LAMAR MEDIA CORP [Member]
    
Accounts Payable And Accrued Liabilities Current [Line Items]    
Payroll 11,311 12,854
Interest 23,451 31,888
Other 60,870 52,118
Total $ 95,632 $ 96,860