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- Definition

Debt instrument covenant eliminated.

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- Definition

Percentage of aggregate principle which may be redeemed at any time at a specified price.

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- Definition

Percentage premium which may be required for repayment if the Company undergoes a change in control.

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- Definition

Debt instrument redemption, percentage of debt outstanding, post redemption.

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Debt instrument redemption period.

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No definition available.

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- Definition

Line Of Credit Facility Amended And Restated Date

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Ratio of indebtedness to net capital minimum.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Percentage of principal amount of debt redeemed.

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No definition available.

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- Definition

Amount of letters of credit outstanding under debtor-in-possession financing arrangement.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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The cash inflow from bank borrowing during the year.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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No definition available.

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Indebtedness divided by net capital.

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No definition available.

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Long-term Debt - Additional Information (Detail)							3 Months Ended	12 Months Ended
Long-term Debt - Additional Information (Detail)	Jan. 28, 2016 USD ($)	Jan. 07, 2016 USD ($)	Apr. 18, 2014 USD ($)	Jan. 10, 2014 USD ($)	Oct. 30, 2012 USD ($)	Feb. 09, 2012 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount of debt issued								$ 1,919,484,000
Amended and restated date			Apr. 18, 2014
Remaining borrowing capacity under revolving credit facility							$ 136,081,000	291,085,000
Proceeds received from revolving credit facility							300,000,000		$ 300,000,000
Loss on extinguishment of debt							3,142,000		26,023,000	$ 14,345,000
Accounting Standards Update 2015-03 [Member] \| Net Assets [Member]
Debt Instrument [Line Items]
Cumulative effect to total assets, current maturities of long-term debt and long term debt due to adoption of ASU 2015-03								28,034,000
Accounting Standards Update 2015-03 [Member] \| Long Term Debt Current Maturities [Member]
Debt Instrument [Line Items]
Cumulative effect to total assets, current maturities of long-term debt and long term debt due to adoption of ASU 2015-03								4,823,000
Accounting Standards Update 2015-03 [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Cumulative effect to total assets, current maturities of long-term debt and long term debt due to adoption of ASU 2015-03								23,211,000
LAMAR MEDIA CORP [Member]
Debt Instrument [Line Items]
Proceeds received from revolving credit facility							300,000,000		300,000,000
Loss on extinguishment of debt							3,142,000		$ 26,023,000	$ 14,345,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Outstanding revolving credit facility							255,000,000	100,000,000
Letter of credit outstanding							$ 8,919,000	$ 8,915,000
Term A Loan Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing limit of incremental loan facility			$ 300,000,000
Proceeds received from revolving credit facility		$ 300,000,000
Term A Loan Facility [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							2.00%	2.25%
Ratio of indebtedness to net capital minimum							1	1
Ratio of indebtedness to net capital one							3.00	3.00
Term A Loan Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							1.00%
Ratio of indebtedness to net capital minimum							1
Ratio of indebtedness to net capital one							3.00
Term A Loan Facility [Member] \| Debt Ratio Less Than or Equal to Four Point Two Five [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate								2.00%
Ratio of indebtedness to net capital minimum								1
Ratio of indebtedness to net capital one								4.25
Term A Loan Facility [Member] \| Debt Ratio Less Than or Equal to Three [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							1.75%	1.75%
Term A Loan Facility [Member] \| Debt Ratio Less Than or Equal to Three [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							0.75%
Revolving Credit Facility [Member] \| LAMAR MEDIA CORP [Member]
Debt Instrument [Line Items]
Revolving credit facility maturity date							Feb. 02, 2019	Feb. 02, 2019
Revolving Credit Facility [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							2.25%
Ratio of indebtedness to net capital minimum							1
Ratio of indebtedness to net capital one							3.00
Revolving Credit Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							1.25%	1.00%
Ratio of indebtedness to net capital minimum							1	1
Ratio of indebtedness to net capital one							3.00	3.00
Revolving Credit Facility [Member] \| Debt Ratio Less Than or Equal to Four Point Two Five [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							2.00%
Ratio of indebtedness to net capital minimum							1
Ratio of indebtedness to net capital one							4.25
Revolving Credit Facility [Member] \| Debt Ratio Less Than or Equal to Four Point Two Five [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							1.00%
Ratio of indebtedness to net capital minimum							1
Ratio of indebtedness to net capital one							4.25
Revolving Credit Facility [Member] \| Debt Ratio Less Than or Equal to Three [Member] \| LIBO Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							1.75%
Revolving Credit Facility [Member] \| Debt Ratio Less Than or Equal to Three [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Adjusted Rate							0.75%	0.75%
5 7/8% Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes						5.875%	5.875%	5.875%
Aggregate principal amount of debt issued						$ 500,000,000
Net proceeds from the issuance of debt						$ 489,000,000
Redemption percentage equal to principal amount include aggregate premium						100.00%
Redemption price percentage of the principal amount to be purchased						101.00%
5 7/8% Senior Subordinated Notes [Member] \| LAMAR MEDIA CORP [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes								5.875%
5% Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes					5.00%		5.00%	5.00%
Aggregate principal amount of debt issued					$ 535,000,000
Net proceeds from the issuance of debt					$ 527,100,000
Redemption percentage equal to principal amount include aggregate premium					100.00%
Redemption price percentage of the principal amount to be purchased					101.00%
5% Senior Subordinated Notes [Member] \| LAMAR MEDIA CORP [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes								5.00%
5 3/8% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes				5.375%			5.375%	5.375%
Aggregate principal amount of debt issued				$ 510,000,000
Net proceeds from the issuance of debt				$ 502,300,000
Redemption percentage equal to principal amount include aggregate premium				100.00%
Redemption price percentage of the principal amount to be purchased				101.00%
Redemption percentage of aggregate principal amount of senior notes				35.00%
Additional redeemed percentage of aggregate principal amount				105.375%
Redemption percentage of issued notes which remain outstanding				65.00%
Debt instrument redemption period				120 days
5 3/8% Senior Notes [Member] \| LAMAR MEDIA CORP [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes								5.375%
5 3/8% Senior Notes [Member] \| Prior to January 15, 2017 [Member]
Debt Instrument [Line Items]
Redemption percentage of aggregate principal amount of senior notes				35.00%
Additional redeemed percentage of aggregate principal amount				105.375%
Redemption percentage of issued notes which remain outstanding				65.00%
5 3/8% Senior Notes [Member] \| Prior to January 15, 2019 [Member]
Debt Instrument [Line Items]
Additional redeemed percentage of aggregate principal amount				100.00%
Senior Credit Facility [Member]
Debt Instrument [Line Items]
Non cash loss				$ 5,176,000
Ratio of indebtedness to net capital one							3.5	3.5
Senior Credit Facility [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing limit of incremental loan facility			400,000,000
Incremental Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing limit of incremental loan facility			$ 500,000,000
Incremental Facility [Member] \| Term A Loan Facility [Member]
Debt Instrument [Line Items]
Ratio of indebtedness to net capital one			3.5
Incremental loan limit eliminated as per amendment			$ 500,000,000
7 7/8% Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes			7.875%
Aggregate principal amount of debt issued			$ 400,000,000
5 3/4% Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate on convertible notes	5.75%						5.75%
Aggregate principal amount of debt issued	$ 400,000,000
Net proceeds from the issuance of debt	$ 394,500,000
Redemption price percentage of the principal amount to be purchased	101.00%							101.00%
5 3/4% Senior Notes [Member] \| Prior to February 1, 2019 [Member]
Debt Instrument [Line Items]
Redemption percentage of aggregate principal amount of senior notes	35.00%							35.00%
Additional redeemed percentage of aggregate principal amount	105.75%							105.75%
Redemption percentage of issued notes which remain outstanding	65.00%							65.00%
5 3/4% Senior Notes [Member] \| Prior to February 1, 2021 [Member]
Debt Instrument [Line Items]
Additional redeemed percentage of aggregate principal amount	100.00%							100.00%