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Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Reconciliation Of Unrecognized Tax Benefits [Line Items]
Beginning balance	$ 75	$ 135
Additions for tax positions related to current year	1	3
Additions for tax positions related to prior years
Reductions for tax positions related to prior years
Lapse of statute of limitations	(41)	(63)
Settlements
Ending Balance	35	75
LAMAR MEDIA CORP [Member]
Reconciliation Of Unrecognized Tax Benefits [Line Items]
Beginning balance	75	135
Additions for tax positions related to current year	1	3
Additions for tax positions related to prior years
Reductions for tax positions related to prior years
Lapse of statute of limitations	(41)	(63)
Settlements
Ending Balance	$ 35	$ 75

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Amount of each individual error being corrected in the correcting adjustment.

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-Name Accounting Standards Codification

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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