XML 91 R78.htm IDEA: XBRL DOCUMENT
v3.20.4

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Parenthetical) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Schedule Of Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Tax adjustment related dividend paid deduction | $ 52,985 | $ 76,688 | $ 69,818
Valuation allowance | $ (1,031) | $ (1,032) | $ 3,813
Income tax rate | 21.00% | 21.00% | 21.00%
Rate change | $ (182) |  | $ (80)
Recognized a deferred tax charge for future foreign withholding taxes related to undistributed earnings | (78) | $ (102) | (393)
Deferred tax adjustment due to REIT conversion |  | (17,031) |
Puerto Rico Corporate [Member] |  |  |
Schedule Of Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Rate change | $ (182) |  |
Puerto Rico Corporate [Member] | Maximum [Member] |  |  |
Schedule Of Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Income tax rate | 39.00% |  |
Puerto Rico Corporate [Member] | Minimum [Member] |  |  |
Schedule Of Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Income tax rate | 37.50% |  |
Puerto Rico [Member] |  |  |
Schedule Of Effective Income Tax Rate Reconciliation [Line Items] |  |  |
Valuation allowance | $ (1,031) | $ (1,032) | $ 3,813

X
- Definition Income tax rate reconciliation, undistributed earnings of foreign subsidiaries. + References No definition available. + Details
Name: | lamr_IncomeTaxRateReconciliationUndistributedEarningsOfForeignSubsidiaries
Namespace Prefix: | lamr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Income tax reconciliation deferred tax adjustment due to REIT conversion. + References No definition available. + Details
Name: | lamr_IncomeTaxReconciliationDeferredTaxAdjustmentDueToREITConversion
Namespace Prefix: | lamr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Schedule Of Effective Income Tax Rate Reconciliation [Line Items] + References No definition available. + Details
Name: | lamr_ScheduleOfEffectiveIncomeTaxRateReconciliationLineItems
Namespace Prefix: | lamr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e32059-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for dividend. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_IncomeTaxReconciliationDeductionsDividends
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityNameAxis=lamr_PuertoRicoCorporateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_PR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |