XML 84 R71.htm IDEA: XBRL DOCUMENT
v3.20.4

Long-term Debt - Additional Information (Detail) |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 03, 2021 | Oct. 23, 2020 | Sep. 16, 2020 USD ($) | Aug. 31, 2020 USD ($) | Aug. 19, 2020 USD ($) | May 13, 2020 USD ($) | Feb. 20, 2020 | Feb. 06, 2020 USD ($) | Feb. 06, 2020 USD ($) | Feb. 01, 2019 USD ($) | Dec. 18, 2018 USD ($) | Jan. 28, 2016 USD ($) | Jan. 10, 2014 USD ($) | Oct. 30, 2012 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2018 USD ($) | Jan. 22, 2021 | Mar. 16, 2020 USD ($) | Dec. 31, 2019 USD ($) | Mar. 16, 2018
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument description |  |  |  |  |  |  |  | On February 6, 2020, Lamar Media entered into a Fourth Amended and Restated Credit Agreement (the “Fourth Amended and Restated Credit Agreement”) with certain of Lamar Media’s subsidiaries as guarantors, JPMorgan Chase Bank, N.A. as administrative agent and the lenders party thereto, under which the parties agreed to amend and restate Lamar Media’s existing senior credit facility. The Fourth Amended and Restated Credit Agreement amended and restated the Third Amended and Restated Credit Agreement dated as of May 15, 2017, as amended (the “Third Amended and Restated Credit Agreement”). |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received from senior credit facility term loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 598,500,000 | $ 599,250,000 |  |  |  |
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,235,000 | 15,429,000 |  |  |  |
Outstanding revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Remaining borrowing capacity under revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 736,030,000 |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,926,633,000 |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,926,633,000 |  |  |  | $ 3,004,532,000 |
Letter of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit outstanding balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,970,000 |  |  |  |  |
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received from senior credit facility term loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 598,500,000 | 599,250,000 |  |  |  |
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,235,000 | $ 15,429,000 |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,926,633,000 |  |  |  | 3,004,532,000 |
Senior Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,608,000 |  |  |  |  |
3 3/4% Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  | 3.75% | 3.75% |  |  |  |  |  | 3.75% |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  |  |  |  | 103.75% |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of aggregate principal amount of senior notes |  |  |  |  |  |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of issued notes which remain outstanding |  |  |  |  |  |  |  |  | 60.00% |  |  |  |  |  |  |  |  |  |  |
3 3/4% Senior Notes [Member] | Prior to February 15, 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage of the principal amount to be purchased |  |  |  |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |  |
3 3/4% Senior Notes [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  | 3.75% | 3.75% |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  | $ 600,000,000 | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |
Net proceeds form the issuance of debt |  |  |  |  |  |  |  |  | $ 592,500,000 |  |  |  |  |  |  |  |  |  |  |
3 3/4% Senior Notes [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.75% |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |
4% Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  | 4.00% | 4.00% |  |  |  |  |  | 4.00% |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 549,280,000 |  |  |  |  |
Redemption price percentage of the principal amount to be purchased |  |  |  |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |  |
4% Senior Notes [Member] | Prior to February 1, 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
4% Senior Notes [Member] | Prior to February 15, 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  |  |  |  | 104.00% |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of aggregate principal amount of senior notes |  |  |  |  |  |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of issued notes which remain outstanding |  |  |  |  |  |  |  |  | 60.00% |  |  |  |  |  |  |  |  |  |  |
4% Senior Notes [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 4.00% |  |  | 4.00% | 4.00% |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  | $ 150,000,000 |  |  | $ 400,000,000 | $ 400,000,000 |  |  |  |  |  |  |  |  |  |  |
Net proceeds form the issuance of debt |  |  |  |  | $ 146,900,000 |  |  |  | 395,000,000 |  |  |  |  |  |  |  |  |  |  |
Accounts Receivable Securitization Program [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  |  |  |  |  |  |  |  |  | Dec. 17, 2021 |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  |  |  |  | $ 175,000,000 |  |  |  |  |  |  |  |  |
Increase in delinquency ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11.00% |  |  |  |  |
Delinquency ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  |  |
Increase in dilution ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.00% |  |  |  |  |
Dilution ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |
Increase in days sales outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75 |  |  |  |  |
Number of days sales outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65 |  |  |  |  |
Percentage of commitment to maintain minimum borrowings |  | 70.00% |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |
Minimum Funding Threshold |  | requires the Special Purpose Subsidiaries to maintain minimum borrowings under the Accounts Receivable Securitization Program on any day equal to the lesser of (i) 70.00% of the aggregate Commitment of all Lenders or (ii) the Borrowing Base, though the Special Purpose Subsidiaries had the right to borrow less than the Minimum Funding Threshold during certain periods prior to December 21, 2020 at their election. |  |  |  |  |  |  |  |  |  |  |  |  | requires the Special Purpose Subsidiaries to maintain minimum borrowings under the |  |  |  |  |
Delinquency ratio |  | 13.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dilution ratio |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 122,500,000 |  |  |  | 175,000,000 |
Accounts Receivable Securitization Program [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,500,000 |  |  |  | $ 175,000,000 |
Available borrowing on accounts receivable securitization |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 52,500,000 |  |  |  |  |
Accounts Receivable Securitization Program [Member] | For Up To Two Additional Periods [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delinquency ratio |  | 16.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
5% Senior Subordinated Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  | 5.00% |
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,051,000 |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 535,000,000 |  |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 535,000,000 |
Net proceeds form the issuance of debt |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 527,100,000 |  |  |  |  |  |
Debt Instrument Redemption Amount |  |  | $ 267,500,000 | $ 267,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  | 100.833% | 100.833% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on debt extinguishment on cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,456,000 |  |  |  |  |
5% Senior Subordinated Notes [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 535,000,000 |
5 3/8% Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  | 5.375% |  |  |  |  |  | 5.375% |
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,576,000 |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  |  |  |  |  |  | $ 510,000,000 |  |  |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 510,000,000 |
Net proceeds form the issuance of debt |  |  |  |  |  |  |  |  |  |  |  |  | $ 502,300,000 |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  |  | 101.792% |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on debt extinguishment on cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,139,000 |  |  |  |  |
Redemption, description |  |  |  |  |  |  | Lamar Media used the proceeds from the 4% Senior Notes (defined below) and 3 3/4% Senior Notes (defined below) to redeem in full all of the 5 3/8% Notes on February 20, 2020 at a redemption price of 101.792% of the aggregate principal amounts of the outstanding 5 3/8% Notes, plus accrued and unpaid interest up to but not including the redemption date |  |  |  |  |  |  |  |  |  |  |  |  |
5 3/8% Senior Notes [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.375% |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 510,000,000 |
5 3/4% Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  | 5.75% |  |  | 5.75% |  |  |  | 5.75% |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 653,631,000 |  |  |  | $ 654,345,000 |
Net proceeds form the issuance of debt |  |  |  |  |  |  |  |  |  |  |  | $ 394,500,000 |  |  |  |  |  |  |  |
Redemption price percentage of the principal amount to be purchased |  |  |  |  |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |
5 3/4% Senior Notes [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.75% |  |  |
Subsequent Event, Description | On February 3, 2021, the Company subsequently redeemed in full all outstanding 5 3/4% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
5 3/4% Senior Notes [Member] | Prior to February 1, 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |
5 3/4% Senior Notes [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  | 5.75% |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  |  |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |
Net proceeds form the issuance of debt |  |  |  |  |  |  |  |  |  | $ 251,500,000 |  |  |  |  |  |  |  |  |  |
5 3/4% Senior Notes [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.75% |  |  |  | 5.75% |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 653,631,000 |  |  |  | $ 654,345,000 |
4 7/8% Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.875% |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  | 104.875% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of aggregate principal amount of senior notes |  |  |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption percentage of issued notes which remain outstanding |  |  |  |  |  | 60.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
4 7/8% Senior Notes [Member] | Prior to February 15, 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemed percentage of aggregate principal amount |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage of the principal amount to be purchased |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
4 7/8% Senior Notes [Member] | Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 4.875% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt issued |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds form the issuance of debt |  |  |  |  |  | $ 395,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
4 7/8% Senior Notes [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.875% |  |  |  |  |
Debt instrument outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |
Senior or Senior Subordinated Notes and other Indebtedness [Member] | Debt Instrument Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt repurchase program, authorized amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,000,000 |  |
Debt instrument repurchase expiry date |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Sep. 30, 2021 |  |  |  |  |
Debt instrument repurchased under the program |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  |
Senior Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing limit of incremental loan facility |  |  |  |  |  |  |  | $ 750,000,000 | 750,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  |  |  |  |  |  | Feb. 06, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Term B Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing limit of incremental loan facility |  |  |  |  |  |  |  | $ 600,000,000 | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  |  |  |  |  |  | Feb. 06, 2027 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds received from senior credit facility term loans |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Term B Loan Facility [Member] | LIBO Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjusted Rate |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |
Term B Loan Facility [Member] | Base Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjusted Rate |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity date |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Feb. 06, 2025 |  |  |  |  |
Revolving Credit Facility [Member] | LIBO Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Secured debt ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.25
Adjusted Rate |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |
Ratio of indebtedness to net capital minimum |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | LIBO Rate [Member] | Debt Ratio Less Than Four Point Two Five [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjusted Rate |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Base Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Secured debt ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.25
Adjusted Rate |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |
Ratio of indebtedness to net capital minimum |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Base Rate [Member] | Debt Ratio Less Than Four Point Two Five [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjusted Rate |  |  |  |  |  |  |  | 0.25% |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Secured debt ratio |  |  |  |  |  |  |  | 4.50 | 4.50 |  |  |  |  |  |  |  |  |  |  |

X
- Definition Account receivable minimum funding threshold description. + References No definition available. + Details
Name: | lamr_AccountReceivableMinimumFundingThresholdDescription
Namespace Prefix: | lamr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accounts receivable securitization available borrowing amount. + References No definition available. + Details
Name: | lamr_AccountsReceivableSecuritizationAvailableBorrowingAmount
Namespace Prefix: | lamr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cash portion of gains losses on extinguishment of debt. + References No definition available. + Details
Name: | lamr_CashPortionOfGainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | lamr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Days sales outstanding due to third amendment to financing agreement. + References No definition available. + Details
Name: | lamr_DaysSalesOutstandingDueToThirdAmendmentToFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt instrument principal redemption maximum percentage. + References No definition available. + Details
Name: | lamr_DebtInstrumentPrincipalAmountRedemptionMaximumPercentage
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage premium which may be required for repayment if the Company undergoes a change in control. + References No definition available. + Details
Name: | lamr_DebtInstrumentPurchasePriceAfterChangeOfControlPercentage
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt instrument redemption percentage of outstanding post redemption. + References No definition available. + Details
Name: | lamr_DebtInstrumentRedemptionPercentageOfOutstandingPostRedemption
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt repurchase program, authorized amount. + References No definition available. + Details
Name: | lamr_DebtRepurchaseProgramAuthorizedAmount
Namespace Prefix: | lamr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Delinquency ratio due to fourth amendment to receivables financing agreement. + References No definition available. + Details
Name: | lamr_DelinquencyRatioDueToFourthAmendmentToReceivablesFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Delinquency ratio due to third amendment to receivables financing agreement. + References No definition available. + Details
Name: | lamr_DelinquencyRatioDueToThirdAmendmentToReceivablesFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Dilution ratio due to fourth amendment to receivables financing agreement. + References No definition available. + Details
Name: | lamr_DilutionRatioDueToFourthAmendmentToReceivablesFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Dilution ratio due to third amendment to receivables financing agreement. + References No definition available. + Details
Name: | lamr_DilutionRatioDueToThirdAmendmentToReceivablesFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Increase in days sales outstanding due to third amendment to financing agreement. + References No definition available. + Details
Name: | lamr_IncreaseInDaysSalesOutstandingDueToThirdAmendmentToFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase in delinquency ratio due to third amendment to receivables financing agreement. + References No definition available. + Details
Name: | lamr_IncreaseInDelinquencyRatioDueToThirdAmendmentToReceivablesFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Increase in dilution ratio due to third amendment to financing agreement. + References No definition available. + Details
Name: | lamr_IncreaseInDilutionRatioDueToThirdAmendmentToReceivablesFinancingAgreement
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of commitment to maintain minimum borrowings. + References No definition available. + Details
Name: | lamr_PercentageOfCommitmentToMaintainMinimumBorrowings
Namespace Prefix: | lamr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ratio of indebtedness to net capital minimum. + References No definition available. + Details
Name: | lamr_RatioOfIndebtednessToNetCapitalMinimum
Namespace Prefix: | lamr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of debt redemption features under terms of the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition End date of debt instrument redemption period, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodEndDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value amount of debt instrument that was repurchased. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentRepurchaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash inflow from bank borrowing during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromBankDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromDebtNetOfIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Indebtedness divided by net capital. + References No definition available. + Details
Name: | us-gaap_RatioOfIndebtednessToNetCapital1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (12)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
Name: | us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Describes the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662 + Details
Name: | us-gaap_SubsequentEventDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=lamr_LamarMediaCorporationAndSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ExtinguishmentOfDebtAxis=lamr_SeniorCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_ThreePointThreeByFourPercentSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_FourPercentSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_AccountsReceivableSecuritizationProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=lamr_ForUpToTwoAdditionalPeriodsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_FivePercentSeniorSubordinateNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_FivePointThreeByEightPercentSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_FivePointThreeByFourPercentSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_FourPointSevenByEightPercentSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=lamr_SeniorOrSeniorSubordinatedNotesAndOtherIndebtednessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=lamr_DebtInstrumentRepurchaseProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=lamr_SeniorCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=lamr_TermBLoanFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=lamr_DebtRatioLessThanFourPointTwoFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |