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Condensed Consolidating Statements of Income and Comprehensive Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Type of Revenue [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Net revenues | $ 457,786 |  |  | $ 418,498 |  |  | $ 1,290,985 | $ 1,199,324
Operating expenses |  |  |  |  |  |  |  |
Type of Cost, Good or Service [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Direct advertising expenses | $ 148,846 |  |  | $ 140,699 |  |  | $ 435,706 | $ 419,776
General and administrative expenses | 80,561 |  |  | 73,166 |  |  | 238,270 | 213,060
Corporate expenses | 23,185 |  |  | 20,776 |  |  | 58,888 | 62,027
Depreciation and amortization | 63,951 |  |  | 55,089 |  |  | 187,150 | 167,251
(Gain) loss on disposition of assets | (199) |  |  | 407 |  |  | (5,360) | 7,265
Total Operating Expenses | 316,344 |  |  | 290,137 |  |  | 914,654 | 869,379
Operating income | 141,442 |  |  | 128,361 |  |  | 376,331 | 329,945
Income before income tax expense | 103,287 |  |  | 96,668 |  |  | 262,644 | 217,508
Income tax expense (benefit) | 3,578 |  |  | 2,612 |  |  | (6,714) | 7,969
Net income | 99,709 | $ 118,396 | $ 51,253 | 94,056 | $ 100,431 | $ 15,052 | 269,358 | 209,539
Statements of Comprehensive Income |  |  |  |  |  |  |  |
Net income | 99,709 | $ 118,396 | $ 51,253 | 94,056 | $ 100,431 | $ 15,052 | 269,358 | 209,539
Comprehensive income | $ 99,535 |  |  | $ 94,277 |  |  | $ 269,730 | $ 208,940
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] |  |  |  |  |  |  |  |
Type of Revenue [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Net revenues | $ 457,786 |  |  | $ 418,498 |  |  | $ 1,290,985 | $ 1,199,324
Operating expenses |  |  |  |  |  |  |  |
Type of Cost, Good or Service [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Direct advertising expenses | $ 148,846 |  |  | $ 140,699 |  |  | $ 435,706 | $ 419,776
General and administrative expenses | 80,561 |  |  | 73,166 |  |  | 238,270 | 213,060
Corporate expenses | 23,062 |  |  | 20,667 |  |  | 58,567 | 61,723
Depreciation and amortization | 63,951 |  |  | 55,089 |  |  | 187,150 | 167,251
(Gain) loss on disposition of assets | (199) |  |  | 407 |  |  | (5,360) | 7,265
Total Operating Expenses | 316,221 |  |  | 290,028 |  |  | 914,333 | 869,075
Operating income | 141,565 |  |  | 128,470 |  |  | 376,652 | 330,249
Interest expense (income), net | 38,155 |  |  | 31,693 |  |  | 113,687 | 97,008
Other expenses |  |  |  |  |  |  |  | 15,429
Income before income tax expense | 103,410 |  |  | 96,777 |  |  | 262,965 | 217,812
Income tax expense (benefit) | 3,578 |  |  | 2,612 |  |  | (6,714) | 7,969
Net income | 99,832 |  |  | 94,165 |  |  | 269,679 | 209,843
Statements of Comprehensive Income |  |  |  |  |  |  |  |
Net income | 99,832 |  |  | 94,165 |  |  | 269,679 | 209,843
Total other comprehensive income (loss), net of tax | (174) |  |  | 221 |  |  | 372 | (599)
Comprehensive income | $ 99,658 |  |  | $ 94,386 |  |  | $ 270,051 | $ 209,244
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Reportable Legal Entities [Member] | Lamar Media [Member] |  |  |  |  |  |  |  |
Type of Revenue [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Operating expenses |  |  |  |  |  |  |  |
Type of Cost, Good or Service [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Equity in (earnings) loss of subsidiaries | $ (136,714) |  |  | $ (126,015) |  |  | $ (379,424) | $ (322,592)
Interest expense (income), net | 36,882 |  |  | 31,850 |  |  | 109,745 | 97,320
Other expenses |  |  |  |  |  |  |  | 15,429
Income before income tax expense | 99,832 |  |  | 94,165 |  |  | 269,679 | 209,843
Net income | 99,832 |  |  | 94,165 |  |  | 269,679 | 209,843
Statements of Comprehensive Income |  |  |  |  |  |  |  |
Net income | 99,832 |  |  | 94,165 |  |  | 269,679 | 209,843
Comprehensive income | $ 99,832 |  |  | $ 94,165 |  |  | $ 269,679 | $ 209,843
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |
Type of Revenue [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Net revenues | $ 446,838 |  |  | $ 407,656 |  |  | $ 1,258,493 | $ 1,164,039
Operating expenses |  |  |  |  |  |  |  |
Type of Cost, Good or Service [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Direct advertising expenses | $ 142,412 |  |  | $ 134,863 |  |  | $ 417,271 | $ 400,703
General and administrative expenses | 78,470 |  |  | 71,046 |  |  | 232,602 | 206,522
Corporate expenses | 22,645 |  |  | 20,252 |  |  | 57,542 | 60,468
Depreciation and amortization | 63,033 |  |  | 53,956 |  |  | 184,897 | 162,536
(Gain) loss on disposition of assets | (185) |  |  | 559 |  |  | (1,195) | (268)
Total Operating Expenses | 306,375 |  |  | 280,676 |  |  | 891,117 | 829,961
Operating income | 140,463 |  |  | 126,980 |  |  | 367,376 | 334,078
Interest expense (income), net | (7) |  |  | (8) |  |  | (94) | (18)
Income before income tax expense | 140,470 |  |  | 126,988 |  |  | 367,470 | 334,096
Income tax expense (benefit) | 3,255 |  |  | 2,167 |  |  | (9,357) | 5,708
Net income | 137,215 |  |  | 124,821 |  |  | 376,827 | 328,388
Statements of Comprehensive Income |  |  |  |  |  |  |  |
Net income | 137,215 |  |  | 124,821 |  |  | 376,827 | 328,388
Comprehensive income | $ 137,215 |  |  | $ 124,821 |  |  | $ 376,827 | $ 328,388
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |
Type of Revenue [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Net revenues | $ 11,539 |  |  | $ 11,659 |  |  | $ 34,563 | $ 37,880
Operating expenses |  |  |  |  |  |  |  |
Type of Cost, Good or Service [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Direct advertising expenses | $ 7,025 |  |  | $ 6,522 |  |  | $ 20,506 | $ 21,042
General and administrative expenses | 2,091 |  |  | 2,120 |  |  | 5,668 | 6,538
Corporate expenses | 417 |  |  | 415 |  |  | 1,025 | 1,255
Depreciation and amortization | 918 |  |  | 1,133 |  |  | 2,253 | 4,715
(Gain) loss on disposition of assets | (14) |  |  | (152) |  |  | (4,165) | 7,533
Total Operating Expenses | 10,437 |  |  | 10,038 |  |  | 25,287 | 41,083
Operating income | 1,102 |  |  | 1,621 |  |  | 9,276 | (3,203)
Interest expense (income), net | 1,280 |  |  | (18) |  |  | 4,036 | 332
Income before income tax expense | (178) |  |  | 1,639 |  |  | 5,240 | (3,535)
Income tax expense (benefit) | 323 |  |  | 445 |  |  | 2,643 | 2,261
Net income | (501) |  |  | 1,194 |  |  | 2,597 | (5,796)
Statements of Comprehensive Income |  |  |  |  |  |  |  |
Net income | (501) |  |  | 1,194 |  |  | 2,597 | (5,796)
Total other comprehensive income (loss), net of tax | (174) |  |  | 221 |  |  | 372 | (599)
Comprehensive income | $ (675) |  |  | $ 1,415 |  |  | $ 2,969 | $ (6,395)
LAMAR MEDIA CORP. AND SUBSIDIARIES [Member] | Eliminations [Member] |  |  |  |  |  |  |  |
Type of Revenue [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Net revenues | $ (591) |  |  | $ (817) |  |  | $ (2,071) | $ (2,595)
Operating expenses |  |  |  |  |  |  |  |
Type of Cost, Good or Service [Extensible List] | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember |  |  | us-gaap:AdvertisingMember | us-gaap:AdvertisingMember
Direct advertising expenses | $ (591) |  |  | $ (686) |  |  | $ (2,071) | $ (1,969)
Total Operating Expenses | (591) |  |  | (686) |  |  | (2,071) | (1,969)
Operating income |  |  |  | (131) |  |  |  | (626)
Equity in (earnings) loss of subsidiaries | 136,714 |  |  | 126,015 |  |  | 379,424 | 322,592
Interest expense (income), net |  |  |  | (131) |  |  |  | (626)
Income before income tax expense | (136,714) |  |  | (126,015) |  |  | (379,424) | (322,592)
Net income | (136,714) |  |  | (126,015) |  |  | (379,424) | (322,592)
Statements of Comprehensive Income |  |  |  |  |  |  |  |
Net income | (136,714) |  |  | (126,015) |  |  | (379,424) | (322,592)
Comprehensive income | $ (136,714) |  |  | $ (126,015) |  |  | $ (379,424) | $ (322,592)

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- Definition Indicates type of cost from product sold and service rendered. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 55 -Paragraph 91 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046 + Details
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