00015261132020FYFALSEtrue1240.3330.3330.33300015261132020-01-012020-12-310001526113us-gaap:CommonStockMember2020-01-012020-12-310001526113gnl:A7.25SeriesACumulativeRedeemablePreferredStock0.01parvalueMember2020-01-012020-12-310001526113gnl:A6.875SeriesBCumulativeRedeemablePerpetualPreferredStock0.01parvalueMember2020-01-012020-12-310001526113gnl:PreferredStockPurchaseRightsMember2020-01-012020-12-31iso4217:USD00015261132020-06-30xbrli:shares00015261132021-02-1900015261132020-12-3100015261132019-12-31xbrli:pure0001526113us-gaap:SeriesAPreferredStockMember2020-01-012020-12-310001526113us-gaap:SeriesAPreferredStockMember2019-01-012019-12-31iso4217:USDxbrli:shares0001526113us-gaap:SeriesAPreferredStockMember2020-12-310001526113us-gaap:SeriesAPreferredStockMember2019-12-310001526113us-gaap:SeriesBPreferredStockMember2019-01-012019-12-310001526113us-gaap:SeriesBPreferredStockMember2020-01-012020-12-310001526113us-gaap:SeriesBPreferredStockMember2019-12-310001526113us-gaap:SeriesBPreferredStockMember2020-12-3100015261132019-01-012019-12-3100015261132018-01-012018-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesAPreferredStockMember2017-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesBPreferredStockMember2017-12-310001526113us-gaap:CommonStockMember2017-12-310001526113us-gaap:AdditionalPaidInCapitalMember2017-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2017-12-310001526113us-gaap:RetainedEarningsMember2017-12-310001526113us-gaap:ParentMember2017-12-310001526113us-gaap:NoncontrollingInterestMember2017-12-3100015261132017-12-310001526113us-gaap:CommonStockMember2018-01-012018-12-310001526113us-gaap:AdditionalPaidInCapitalMemberus-gaap:CommonStockMember2018-01-012018-12-310001526113us-gaap:CommonStockMemberus-gaap:ParentMember2018-01-012018-12-310001526113us-gaap:CommonStockMember2018-01-012018-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesAPreferredStockMember2018-01-012018-12-310001526113us-gaap:AdditionalPaidInCapitalMemberus-gaap:SeriesAPreferredStockMember2018-01-012018-12-310001526113us-gaap:SeriesAPreferredStockMemberus-gaap:ParentMember2018-01-012018-12-310001526113us-gaap:SeriesAPreferredStockMember2018-01-012018-12-310001526113us-gaap:RetainedEarningsMember2018-01-012018-12-310001526113us-gaap:ParentMember2018-01-012018-12-310001526113us-gaap:RetainedEarningsMemberus-gaap:SeriesAPreferredStockMember2018-01-012018-12-310001526113us-gaap:AdditionalPaidInCapitalMember2018-01-012018-12-310001526113us-gaap:NoncontrollingInterestMember2018-01-012018-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesAPreferredStockMember2018-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesBPreferredStockMember2018-12-310001526113us-gaap:CommonStockMember2018-12-310001526113us-gaap:AdditionalPaidInCapitalMember2018-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-12-310001526113us-gaap:RetainedEarningsMember2018-12-310001526113us-gaap:ParentMember2018-12-310001526113us-gaap:NoncontrollingInterestMember2018-12-3100015261132018-12-310001526113us-gaap:AccountingStandardsUpdate201712Memberus-gaap:AccumulatedOtherComprehensiveIncomeMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2018-12-310001526113us-gaap:AccountingStandardsUpdate201712Membersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2018-12-310001526113srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:AccountingStandardsUpdate201602Memberus-gaap:RetainedEarningsMember2018-12-310001526113srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:AccountingStandardsUpdate201602Memberus-gaap:ParentMember2018-12-310001526113srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:AccountingStandardsUpdate201602Member2018-12-310001526113us-gaap:CommonStockMember2019-01-012019-12-310001526113us-gaap:AdditionalPaidInCapitalMemberus-gaap:CommonStockMember2019-01-012019-12-310001526113us-gaap:CommonStockMemberus-gaap:ParentMember2019-01-012019-12-310001526113us-gaap:CommonStockMember2019-01-012019-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesAPreferredStockMember2019-01-012019-12-310001526113us-gaap:AdditionalPaidInCapitalMemberus-gaap:SeriesAPreferredStockMember2019-01-012019-12-310001526113us-gaap:SeriesAPreferredStockMemberus-gaap:ParentMember2019-01-012019-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesBPreferredStockMember2019-01-012019-12-310001526113us-gaap:SeriesBPreferredStockMemberus-gaap:AdditionalPaidInCapitalMember2019-01-012019-12-310001526113us-gaap:SeriesBPreferredStockMemberus-gaap:ParentMember2019-01-012019-12-310001526113us-gaap:RetainedEarningsMember2019-01-012019-12-310001526113us-gaap:ParentMember2019-01-012019-12-310001526113us-gaap:RetainedEarningsMemberus-gaap:SeriesAPreferredStockMember2019-01-012019-12-310001526113us-gaap:SeriesBPreferredStockMemberus-gaap:RetainedEarningsMember2019-01-012019-12-310001526113us-gaap:AdditionalPaidInCapitalMember2019-01-012019-12-310001526113us-gaap:NoncontrollingInterestMember2019-01-012019-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesAPreferredStockMember2019-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesBPreferredStockMember2019-12-310001526113us-gaap:CommonStockMember2019-12-310001526113us-gaap:AdditionalPaidInCapitalMember2019-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310001526113us-gaap:RetainedEarningsMember2019-12-310001526113us-gaap:ParentMember2019-12-310001526113us-gaap:NoncontrollingInterestMember2019-12-310001526113us-gaap:AdditionalPaidInCapitalMemberus-gaap:CommonStockMember2020-01-012020-12-310001526113us-gaap:CommonStockMemberus-gaap:ParentMember2020-01-012020-12-310001526113us-gaap:AdditionalPaidInCapitalMemberus-gaap:SeriesAPreferredStockMember2020-01-012020-12-310001526113us-gaap:SeriesAPreferredStockMemberus-gaap:ParentMember2020-01-012020-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesBPreferredStockMember2020-01-012020-12-310001526113us-gaap:SeriesBPreferredStockMemberus-gaap:AdditionalPaidInCapitalMember2020-01-012020-12-310001526113us-gaap:SeriesBPreferredStockMemberus-gaap:ParentMember2020-01-012020-12-310001526113us-gaap:RetainedEarningsMember2020-01-012020-12-310001526113us-gaap:ParentMember2020-01-012020-12-310001526113us-gaap:RetainedEarningsMemberus-gaap:SeriesAPreferredStockMember2020-01-012020-12-310001526113us-gaap:SeriesBPreferredStockMemberus-gaap:RetainedEarningsMember2020-01-012020-12-310001526113us-gaap:CommonStockMember2020-01-012020-12-310001526113us-gaap:CommonStockMemberus-gaap:CommonStockMember2020-01-012020-12-310001526113us-gaap:AdditionalPaidInCapitalMember2020-01-012020-12-310001526113us-gaap:NoncontrollingInterestMember2020-01-012020-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesAPreferredStockMember2020-12-310001526113us-gaap:PreferredStockMemberus-gaap:SeriesBPreferredStockMember2020-12-310001526113us-gaap:CommonStockMember2020-12-310001526113us-gaap:AdditionalPaidInCapitalMember2020-12-310001526113us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310001526113us-gaap:RetainedEarningsMember2020-12-310001526113us-gaap:ParentMember2020-12-310001526113us-gaap:NoncontrollingInterestMember2020-12-310001526113gnl:MortgageNotesPayableMember2020-01-012020-12-310001526113gnl:MortgageNotesPayableMember2019-01-012019-12-310001526113gnl:MortgageNotesPayableMember2018-01-012018-12-310001526113us-gaap:SeriesBPreferredStockMember2018-01-012018-12-31gnl:propertyutr:sqft0001526113gnl:UnitedStatesAndCanadaMember2020-01-012020-12-310001526113srt:EuropeMember2020-12-310001526113gnl:IndustrialAndDistributionPropertiesMember2020-12-310001526113srt:OfficeBuildingMember2020-12-310001526113srt:RetailSiteMember2020-12-310001526113srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2020-06-300001526113srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2020-01-012020-06-300001526113srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2020-04-012020-06-300001526113srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2020-09-300001526113srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2020-07-012020-09-300001526113srt:RevisionOfPriorPeriodErrorCorrectionAdjustmentMember2020-01-012020-09-30iso4217:USDiso4217:GBPiso4217:USDiso4217:EURiso4217:USDiso4217:CAD0001526113srt:MinimumMember2020-01-012020-12-310001526113srt:MaximumMember2020-01-012020-12-3100015261132015-06-020001526113gnl:A2018MultiYearOutperformancePlanMember2020-01-012020-12-31gnl:segmentgnl:tenant0001526113gnl:RealEstateInvestingMembercountry:US2020-01-012020-12-310001526113gnl:RealEstateInvestingMembercountry:US2019-01-012019-12-310001526113gnl:RealEstateInvestingMembercountry:US2018-01-012018-12-310001526113gnl:RealEstateInvestingMembercountry:GB2020-01-012020-12-310001526113gnl:RealEstateInvestingMembercountry:GB2019-01-012019-12-310001526113gnl:RealEstateInvestingMembercountry:GB2018-01-012018-12-310001526113gnl:RealEstateInvestingMembersrt:EuropeMember2020-01-012020-12-310001526113gnl:RealEstateInvestingMembersrt:EuropeMember2019-01-012019-12-310001526113gnl:RealEstateInvestingMembersrt:EuropeMember2018-01-012018-12-310001526113country:CAgnl:RealEstateInvestingMember2020-01-012020-12-310001526113country:CAgnl:RealEstateInvestingMember2019-01-012019-12-310001526113country:CAgnl:RealEstateInvestingMember2018-01-012018-12-310001526113gnl:RealEstateInvestingMember2020-01-012020-12-310001526113gnl:RealEstateInvestingMember2019-01-012019-12-310001526113gnl:RealEstateInvestingMember2018-01-012018-12-310001526113gnl:RealEstateInvestingMembercountry:US2020-12-310001526113gnl:RealEstateInvestingMembercountry:US2019-12-310001526113gnl:RealEstateInvestingMembercountry:GB2020-12-310001526113gnl:RealEstateInvestingMembercountry:GB2019-12-310001526113gnl:RealEstateInvestingMembersrt:EuropeMember2020-12-310001526113gnl:RealEstateInvestingMembersrt:EuropeMember2019-12-310001526113country:CAgnl:RealEstateInvestingMember2020-12-310001526113country:CAgnl:RealEstateInvestingMember2019-12-310001526113gnl:RealEstateInvestingMember2020-12-310001526113gnl:RealEstateInvestingMember2019-12-310001526113us-gaap:AccountingStandardsUpdate201602Member2018-12-3100015261132019-01-012019-01-010001526113us-gaap:AccountingStandardsUpdate201602Member2019-01-010001526113us-gaap:AccountingStandardsUpdate201712Member2019-01-010001526113us-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113us-gaap:LeasesAcquiredInPlaceMember2019-01-012019-12-310001526113us-gaap:LeasesAcquiredInPlaceMember2018-01-012018-12-310001526113us-gaap:AboveMarketLeasesMember2020-01-012020-12-310001526113us-gaap:AboveMarketLeasesMember2019-01-012019-12-310001526113us-gaap:AboveMarketLeasesMember2018-01-012018-12-310001526113gnl:BelowMarketLeaseMember2020-01-012020-12-310001526113gnl:BelowMarketLeaseMember2019-01-012019-12-310001526113gnl:BelowMarketLeaseMember2018-01-012018-12-310001526113gnl:RealEstatePropertiesAcquiredIn2020Membersrt:OfficeBuildingMember2020-12-310001526113srt:IndustrialPropertyMembergnl:RealEstatePropertiesAcquiredIn2020Member2020-12-310001526113gnl:RealEstatePropertiesAcquiredIn2020Membergnl:DistributionPropertyMember2020-12-310001526113gnl:RealEstatePropertiesAcquiredIn2020Membersrt:RetailSiteMember2020-12-310001526113gnl:RealEstatePropertiesAcquiredIn2020Member2020-12-310001526113gnl:RealEstatePropertiesAcquiredIn2019Membersrt:OfficeBuildingMember2019-12-310001526113srt:IndustrialPropertyMembergnl:RealEstatePropertiesAcquiredIn2019Member2019-12-310001526113gnl:RealEstatePropertiesAcquiredIn2019Membergnl:DistributionPropertyMember2019-12-310001526113gnl:RealEstatePropertiesAcquiredIn2019Membersrt:RetailSiteMember2019-12-310001526113gnl:RealEstatePropertiesAcquiredIn2019Member2019-12-310001526113srt:OfficeBuildingMembergnl:RealEstatePropertiesAcquiredIn2018Member2018-12-310001526113srt:IndustrialPropertyMembergnl:RealEstatePropertiesAcquiredIn2018Member2018-12-310001526113gnl:RealEstatePropertiesAcquiredIn2018Membergnl:DistributionPropertyMember2018-12-310001526113srt:RetailSiteMembergnl:RealEstatePropertiesAcquiredIn2018Member2018-12-310001526113gnl:RealEstatePropertiesAcquiredIn2018Member2018-12-310001526113us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember2020-01-012020-12-310001526113country:US2019-01-012019-12-310001526113gnl:FamiliyDollarVariousU.S.StatesMembercountry:US2019-01-012019-12-310001526113srt:IndustrialPropertyMembercountry:US2019-01-012019-12-310001526113country:GB2019-01-012019-12-310001526113country:NL2019-01-012019-12-310001526113country:DE2019-01-012019-12-310001526113us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember2019-01-012019-12-310001526113us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember2018-01-012018-12-310001526113us-gaap:MortgagesMember2018-01-012018-12-310001526113gnl:CrowneGroupIndianaMember2019-03-072019-03-070001526113gnl:CrowneGroupIndianaMember2019-03-070001526113gnl:CrowneGroupMichiganMember2019-05-172019-05-170001526113gnl:CrowneGroupMichiganMember2019-05-170001526113gnl:TalkTalkManchesterUKMember2019-05-232019-05-230001526113gnl:TalkTalkManchesterUKMember2019-05-230001526113gnl:FamiliyDollarVariousU.S.StatesMember2019-06-282019-06-280001526113gnl:FamiliyDollarVariousU.S.StatesMember2019-06-280001526113gnl:FamiliyDollarVariousU.S.StatesMember2019-09-202019-09-200001526113gnl:FamiliyDollarVariousU.S.StatesMember2019-09-200001526113gnl:PanasonicNewJerseyMember2019-09-302019-09-300001526113gnl:PanasonicNewJerseyMember2019-09-300001526113gnl:AchmeaNetherlandsMember2019-11-012019-11-010001526113gnl:AchmeaNetherlandsMember2019-11-010001526113gnl:RWEGermanyMember2019-12-272019-12-270001526113gnl:RWEGermanyMember2019-12-270001526113gnl:PropertiesSoldin2019Member2019-01-012019-12-310001526113gnl:PropertiesSoldin2019Member2020-12-310001526113gnl:WesternDigitalCAMember2018-06-082018-06-080001526113gnl:WesternDigitalCAMember2018-06-080001526113gnl:VeoliaWaterOHMember2018-07-312018-07-310001526113gnl:VeoliaWaterOHMember2018-07-310001526113gnl:PropertiesSoldin2018Member2018-01-012018-12-310001526113gnl:PropertiesSoldin2018Member2018-12-3100015261132019-11-012019-11-3000015261132019-07-012019-09-300001526113us-gaap:LeasesAcquiredInPlaceMember2020-12-310001526113us-gaap:LeasesAcquiredInPlaceMember2019-12-310001526113us-gaap:AboveMarketLeasesMember2020-12-310001526113us-gaap:AboveMarketLeasesMember2019-12-310001526113gnl:DepreciationDepletionandAmortizationMemberus-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113gnl:OneYearMembergnl:DepreciationDepletionandAmortizationMemberus-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113gnl:DepreciationDepletionandAmortizationMembergnl:TwoYearsMemberus-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113gnl:DepreciationDepletionandAmortizationMembergnl:ThreeYearsMemberus-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113gnl:DepreciationDepletionandAmortizationMembergnl:FourYearsMemberus-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113gnl:FiveYearsMembergnl:DepreciationDepletionandAmortizationMemberus-gaap:LeasesAcquiredInPlaceMember2020-01-012020-12-310001526113gnl:OneYearMembergnl:DepreciationDepletionandAmortizationMember2020-01-012020-12-310001526113gnl:DepreciationDepletionandAmortizationMembergnl:TwoYearsMember2020-01-012020-12-310001526113gnl:DepreciationDepletionandAmortizationMembergnl:ThreeYearsMember2020-01-012020-12-310001526113gnl:DepreciationDepletionandAmortizationMembergnl:FourYearsMember2020-01-012020-12-310001526113gnl:FiveYearsMembergnl:DepreciationDepletionandAmortizationMember2020-01-012020-12-310001526113us-gaap:AboveMarketLeasesMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:OneYearMemberus-gaap:AboveMarketLeasesMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113us-gaap:AboveMarketLeasesMembergnl:TwoYearsMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113us-gaap:AboveMarketLeasesMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMembergnl:ThreeYearsMember2020-01-012020-12-310001526113us-gaap:AboveMarketLeasesMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMembergnl:FourYearsMember2020-01-012020-12-310001526113gnl:FiveYearsMemberus-gaap:AboveMarketLeasesMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:BelowMarketLeaseMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:BelowMarketLeaseMembergnl:OneYearMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:BelowMarketLeaseMembergnl:TwoYearsMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:BelowMarketLeaseMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMembergnl:ThreeYearsMember2020-01-012020-12-310001526113gnl:BelowMarketLeaseMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMembergnl:FourYearsMember2020-01-012020-12-310001526113gnl:FiveYearsMembergnl:BelowMarketLeaseMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:OneYearMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:TwoYearsMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113gnl:OperatingLeasesIncomeStatementLeaseRevenueMembergnl:ThreeYearsMember2020-01-012020-12-310001526113gnl:OperatingLeasesIncomeStatementLeaseRevenueMembergnl:FourYearsMember2020-01-012020-12-310001526113gnl:FiveYearsMembergnl:OperatingLeasesIncomeStatementLeaseRevenueMember2020-01-012020-12-310001526113country:US2020-01-012020-12-310001526113country:US2018-01-012018-12-310001526113stpr:MI2020-01-012020-12-310001526113stpr:MI2019-01-012019-12-310001526113stpr:MI2018-01-012018-12-310001526113country:GB2020-01-012020-12-310001526113country:GB2018-01-012018-12-310001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMembercurrency:EUR2020-12-310001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMembercurrency:EUR2019-12-310001526113gnl:WorldlineMemberus-gaap:MortgagesMembercurrency:EUR2020-12-310001526113gnl:WorldlineMemberus-gaap:MortgagesMembercurrency:EUR2019-12-310001526113gnl:DCNSMemberus-gaap:MortgagesMembercurrency:EUR2020-12-310001526113gnl:DCNSMemberus-gaap:MortgagesMembercurrency:EUR2019-12-310001526113gnl:IDLogisticsIIFranceMemberus-gaap:MortgagesMembercurrency:EUR2020-12-310001526113gnl:IDLogisticsIIFranceMemberus-gaap:MortgagesMembercurrency:EUR2019-12-310001526113us-gaap:MortgagesMembercurrency:EURgnl:FrenchPropertiesMember2020-12-310001526113us-gaap:MortgagesMembercurrency:EURgnl:FrenchPropertiesMember2019-12-310001526113gnl:GermanyPropertiesMemberus-gaap:MortgagesMembercurrency:EUR2020-12-310001526113gnl:GermanyPropertiesMemberus-gaap:MortgagesMembercurrency:EUR2019-12-310001526113gnl:BeneluxMemberus-gaap:MortgagesMembercurrency:EUR2020-12-310001526113gnl:BeneluxMemberus-gaap:MortgagesMembercurrency:EUR2019-12-310001526113us-gaap:MortgagesMembercurrency:EUR2020-12-310001526113us-gaap:MortgagesMembercurrency:EUR2019-12-310001526113us-gaap:MortgagesMembercurrency:GBPgnl:UKMultiPropertyLoanMember2020-12-310001526113us-gaap:MortgagesMembercurrency:GBPgnl:UKMultiPropertyLoanMember2019-12-310001526113us-gaap:MortgagesMembercurrency:GBP2020-12-310001526113us-gaap:MortgagesMembercurrency:GBP2019-12-310001526113gnl:PenskeLogisticsMembercurrency:USDus-gaap:MortgagesMember2020-12-310001526113gnl:PenskeLogisticsMembercurrency:USDus-gaap:MortgagesMember2019-12-310001526113gnl:U.S.MultiTenantMortgageLoanIMembercurrency:USDus-gaap:MortgagesMember2020-12-310001526113gnl:U.S.MultiTenantMortgageLoanIMembercurrency:USDus-gaap:MortgagesMember2019-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIMember2020-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIMember2019-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIIMember2020-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIIMember2019-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIVMember2020-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIVMember2019-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanVMember2020-12-310001526113currency:USDus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanVMember2019-12-310001526113currency:USDus-gaap:MortgagesMember2020-12-310001526113currency:USDus-gaap:MortgagesMember2019-12-310001526113us-gaap:MortgagesMember2020-12-310001526113us-gaap:MortgagesMember2019-12-310001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMember2020-12-310001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMembergnl:EuriborRateMember2020-01-012020-12-310001526113us-gaap:MortgagesMembercurrency:EURgnl:FrenchPropertiesMember2020-01-012020-12-310001526113us-gaap:MortgagesMembergnl:EuriborRateMembercurrency:EURgnl:FrenchPropertiesMember2020-01-012020-12-310001526113gnl:GermanyPropertiesMemberus-gaap:MortgagesMembercurrency:EUR2020-01-012020-12-310001526113gnl:GermanyPropertiesMemberus-gaap:MortgagesMembergnl:EuriborRateMembercurrency:EUR2020-01-012020-12-310001526113us-gaap:MortgagesMembercurrency:GBPgnl:UKMultiPropertyLoanMember2020-01-012020-12-310001526113us-gaap:LondonInterbankOfferedRateLIBORMemberus-gaap:MortgagesMembercurrency:GBPgnl:UKMultiPropertyLoanMember2020-01-012020-12-310001526113us-gaap:MortgagesMembergnl:UKMultiPropertyLoanMember2020-10-31iso4217:GBP0001526113gnl:UKMultiPropertyCrossCollateralizedLoanMemberus-gaap:MortgagesMember2020-12-310001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIIMemberus-gaap:SubsequentEventMember2021-02-260001526113us-gaap:MortgagesMemberus-gaap:LineOfCreditMembersrt:ScenarioForecastMember2021-12-310001526113us-gaap:SeniorNotesMembergnl:SeniorNotesDue2027Member2020-12-310001526113us-gaap:LineOfCreditMember2020-12-310001526113us-gaap:MortgagesMembergnl:BOKFinancialMembergnl:WhirlpoolCorporationPropertiesMember2020-07-102020-07-100001526113us-gaap:MortgagesMembergnl:BOKFinancialMemberus-gaap:RevolvingCreditFacilityMembergnl:WhirlpoolCorporationPropertiesMember2020-07-102020-07-100001526113us-gaap:LondonInterbankOfferedRateLIBORMemberus-gaap:MortgagesMembergnl:BOKFinancialMembergnl:WhirlpoolCorporationPropertiesMember2020-07-102020-07-100001526113us-gaap:MortgagesMembergnl:BOKFinancialMembergnl:WhirlpoolCorporationPropertiesMember2020-07-10iso4217:EUR0001526113us-gaap:MortgagesMembergnl:HSBCFranceMembergnl:FrenchPropertiesMember2020-05-142020-05-140001526113gnl:HSBCFranceMembergnl:FrenchPropertiesMember2020-05-142020-05-140001526113us-gaap:MortgagesMembergnl:HSBCFranceMemberus-gaap:BaseRateMembergnl:FrenchPropertiesMember2020-05-142020-05-140001526113us-gaap:MortgagesMembergnl:HSBCFranceMembergnl:EuriborRateMembergnl:FrenchPropertiesMember2020-05-142020-05-140001526113us-gaap:MortgagesMembergnl:HSBCFranceMembergnl:FrenchPropertiesMember2020-05-140001526113us-gaap:MortgagesMembergnl:HSBCFranceMembergnl:FrenchPropertiesMemberus-gaap:RevolvingCreditFacilityMember2020-05-142020-05-140001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanVMembergnl:KeyBankNationalAssociationMember2019-09-122019-09-12gnl:sate0001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanVMembergnl:KeyBankNationalAssociationMember2019-09-120001526113gnl:BeneluxMemberus-gaap:MortgagesMembergnl:LandesbankHessenThuringenGirozentraleMember2019-06-122019-06-120001526113gnl:BeneluxMemberus-gaap:MortgagesMember2019-06-122019-06-120001526113gnl:BeneluxMemberus-gaap:MortgagesMembergnl:LandesbankHessenThuringenGirozentraleMember2019-06-120001526113us-gaap:MortgagesMember2019-06-122019-06-120001526113gnl:BeneluxMemberus-gaap:MortgagesMember2019-06-120001526113us-gaap:MortgagesMembergnl:LandesbankHessenThuringenGirozentraleMembergnl:GermanyPropertyMember2019-05-102019-05-100001526113us-gaap:MortgagesMembergnl:GermanyPropertyMember2019-05-102019-05-100001526113us-gaap:MortgagesMembergnl:EuriborRateMembergnl:GermanyPropertyMember2019-05-102019-05-100001526113us-gaap:MortgagesMembergnl:EuriborRateMembergnl:GermanyPropertyMember2019-10-012019-10-010001526113us-gaap:MortgagesMembergnl:GermanyPropertyMember2019-05-100001526113us-gaap:MortgagesMember2019-05-102019-05-100001526113gnl:ColumnFinancialInc.andSocieteGeneraleFinancialCorporationMemberus-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIVMember2019-04-122019-04-120001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIVMember2019-04-122019-04-12gnl:state0001526113us-gaap:RevolvingCreditFacilityMember2019-04-122019-04-120001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIVMember2019-04-120001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMember2019-02-062019-02-060001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMembergnl:EuriborRateMember2019-02-060001526113gnl:FinlandPropertyMemberus-gaap:MortgagesMember2019-02-060001526113us-gaap:MortgagesMember2019-02-062019-02-060001526113gnl:PenskeLogisticsMemberus-gaap:MortgagesMember2018-11-142018-11-140001526113gnl:PenskeLogisticsMemberus-gaap:MortgagesMember2018-11-140001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIIMember2018-11-092018-11-090001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIIMember2018-11-090001526113us-gaap:RevolvingCreditFacilityMember2018-11-092018-11-090001526113gnl:UKMultiPropertyCrossCollateralizedLoanMemberus-gaap:MortgagesMember2018-08-132018-08-130001526113gnl:UKMultiPropertyCrossCollateralizedLoanMemberus-gaap:LondonInterbankOfferedRateLIBORMemberus-gaap:MortgagesMember2018-08-132018-08-130001526113gnl:UKMultiPropertyCrossCollateralizedLoanMemberus-gaap:MortgagesMember2018-08-130001526113us-gaap:MortgagesMember2018-08-132018-08-130001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIMember2018-01-262018-01-260001526113us-gaap:MortgagesMembergnl:U.S.MultiTenantMortgageLoanIIMember2018-01-260001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113gnl:TermLoanFacilityMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113currency:USDus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113currency:GBPus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113currency:EURus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:USDus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:GBPus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:EURus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:USDgnl:TermLoanFacilityMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113gnl:TermLoanFacilityMembercurrency:GBPus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113gnl:TermLoanFacilityMembercurrency:EURus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113gnl:TermLoanFacilityMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:USDgnl:TermLoanFacilityMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113gnl:TermLoanFacilityMembercurrency:GBPus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113gnl:TermLoanFacilityMembercurrency:EURus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113us-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113currency:USDus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113currency:GBPus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113currency:EURus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2020-12-310001526113us-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:USDus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:GBPus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-310001526113currency:EURus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-12-31iso4217:GBPiso4217:USDiso4217:EURiso4217:USD0001526113gnl:TermLoanFacilityMember2020-12-012020-12-310001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMemberus-gaap:SubsequentEventMember2021-02-242021-02-240001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMemberus-gaap:SubsequentEventMember2021-02-240001526113us-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-010001526113us-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMemberus-gaap:SubsequentEventMember2021-02-24gnl:extension0001526113gnl:TermLoanFacilityMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-012019-08-010001526113us-gaap:FederalFundsEffectiveSwapRateMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-012019-08-010001526113us-gaap:LondonInterbankOfferedRateLIBORMemberus-gaap:UnsecuredDebtMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-012019-08-010001526113srt:MinimumMembergnl:CreditFacilityAmendmentMemberus-gaap:BaseRateMemberus-gaap:RevolvingCreditFacilityMember2019-08-012019-08-010001526113gnl:CreditFacilityAmendmentMemberus-gaap:BaseRateMemberus-gaap:RevolvingCreditFacilityMembersrt:MaximumMember2019-08-012019-08-010001526113us-gaap:LondonInterbankOfferedRateLIBORMembersrt:MinimumMembergnl:CreditFacilityAmendmentMemberus-gaap:RevolvingCreditFacilityMember2019-08-012019-08-010001526113us-gaap:LondonInterbankOfferedRateLIBORMembergnl:CreditFacilityAmendmentMemberus-gaap:RevolvingCreditFacilityMembersrt:MaximumMember2019-08-012019-08-010001526113srt:MinimumMembergnl:CreditFacilityAmendmentMembergnl:TermLoanFacilityMemberus-gaap:BaseRateMember2019-08-012019-08-010001526113gnl:CreditFacilityAmendmentMembergnl:TermLoanFacilityMemberus-gaap:BaseRateMembersrt:MaximumMember2019-08-012019-08-010001526113us-gaap:LondonInterbankOfferedRateLIBORMembersrt:MinimumMembergnl:CreditFacilityAmendmentMembergnl:TermLoanFacilityMember2019-08-012019-08-010001526113us-gaap:LondonInterbankOfferedRateLIBORMembergnl:CreditFacilityAmendmentMembergnl:TermLoanFacilityMembersrt:MaximumMember2019-08-012019-08-010001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:AboveThresholdMembergnl:KeyBankNationalAssociationMember2019-08-012019-08-010001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:AboveThresholdMembergnl:KeyBankNationalAssociationMember2019-08-010001526113gnl:BelowThresholdMemberus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-012019-08-010001526113gnl:BelowThresholdMemberus-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-010001526113us-gaap:UnsecuredDebtMemberus-gaap:RevolvingCreditFacilityMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMembergnl:KeyBankNationalAssociationMember2019-08-012019-08-0100015261132019-08-012019-08-0100015261132020-04-012020-06-300001526113us-gaap:SeniorNotesMembergnl:SeniorNotesDue2027Member2020-12-160001526113us-gaap:SeniorNotesMemberus-gaap:DebtInstrumentRedemptionPeriodOneMembergnl:SeniorNotesDue2027Member2020-12-162020-12-160001526113us-gaap:SeniorNotesMemberus-gaap:TreasuryStockMembergnl:SeniorNotesDue2027Member2020-12-162020-12-160001526113us-gaap:SeniorNotesMemberus-gaap:DebtInstrumentRedemptionPeriodTwoMembergnl:SeniorNotesDue2027Member2020-12-162020-12-160001526113us-gaap:FairValueInputsLevel1Memberus-gaap:ForwardContractsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:FairValueInputsLevel2Memberus-gaap:ForwardContractsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:ForwardContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:ForwardContractsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001526113us-gaap:FairValueInputsLevel1Memberus-gaap:ForwardContractsMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:FairValueInputsLevel2Memberus-gaap:ForwardContractsMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:ForwardContractsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:ForwardContractsMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001526113us-gaap:MortgagesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2020-12-310001526113us-gaap:MortgagesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2019-12-310001526113us-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Member2020-12-310001526113us-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-310001526113us-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Member2019-12-310001526113us-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2019-12-310001526113us-gaap:CarryingReportedAmountFairValueDisclosureMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Member2020-12-310001526113gnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-310001526113us-gaap:CarryingReportedAmountFairValueDisclosureMembergnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Member2019-12-310001526113gnl:SeniorUnsecuredMultiCurrencyRevolvingCreditFacilityMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2019-12-310001526113us-gaap:SeniorNotesMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel3Member2020-12-310001526113us-gaap:SeniorNotesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-310001526113currency:USDus-gaap:DesignatedAsHedgingInstrumentMembergnl:InterestRatePayfixedSwapsMemberus-gaap:InterestRateSwapMember2020-12-310001526113currency:USDus-gaap:DesignatedAsHedgingInstrumentMembergnl:InterestRatePayfixedSwapsMemberus-gaap:InterestRateSwapMember2019-12-310001526113us-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBPgnl:InterestRatePayfixedSwapsMemberus-gaap:InterestRateSwapMember2020-12-310001526113us-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBPgnl:InterestRatePayfixedSwapsMemberus-gaap:InterestRateSwapMember2019-12-310001526113us-gaap:DesignatedAsHedgingInstrumentMembercurrency:EURgnl:InterestRatePayfixedSwapsMemberus-gaap:InterestRateSwapMember2020-12-310001526113us-gaap:DesignatedAsHedgingInstrumentMembercurrency:EURgnl:InterestRatePayfixedSwapsMemberus-gaap:InterestRateSwapMember2019-12-310001526113us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMember2020-12-310001526113us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMember2019-12-310001526113us-gaap:FairValueInputsLevel2Membercurrency:GBPus-gaap:SwapMemberus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2020-12-310001526113us-gaap:FairValueInputsLevel2Membercurrency:GBPus-gaap:SwapMemberus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2019-12-310001526113us-gaap:FairValueInputsLevel2Membercurrency:EURus-gaap:SwapMemberus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2020-12-310001526113us-gaap:FairValueInputsLevel2Membercurrency:EURus-gaap:SwapMemberus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2019-12-310001526113us-gaap:FairValueInputsLevel2Membercurrency:EURus-gaap:SwapMemberus-gaap:InterestRateSwapMemberus-gaap:NondesignatedMember2020-12-310001526113us-gaap:FairValueInputsLevel2Membercurrency:EURus-gaap:SwapMemberus-gaap:InterestRateSwapMemberus-gaap:NondesignatedMember2019-12-310001526113us-gaap:FairValueInputsLevel2Memberus-gaap:SwapMemberus-gaap:NondesignatedMember2020-12-310001526113us-gaap:FairValueInputsLevel2Memberus-gaap:SwapMemberus-gaap:NondesignatedMember2019-12-310001526113us-gaap:CashFlowHedgingMemberus-gaap:InterestExpenseMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMember2020-01-012020-12-31gnl:derivative0001526113us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBPus-gaap:SwapMember2020-12-310001526113us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBPus-gaap:SwapMember2019-12-310001526113us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:EURus-gaap:SwapMember2020-12-310001526113us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:EURus-gaap:SwapMember2019-12-310001526113us-gaap:CashFlowHedgingMembercurrency:USDus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:SwapMember2020-12-310001526113us-gaap:CashFlowHedgingMembercurrency:USDus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:SwapMember2019-12-310001526113us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:SwapMember2020-12-310001526113us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:SwapMember2019-12-310001526113us-gaap:InterestRateSwapMembergnl:WhirlpoolCorporationPropertiesMember2020-12-310001526113us-gaap:InterestRateSwapMembergnl:WhirlpoolCorporationPropertiesMember2020-10-012020-12-310001526113gnl:FinlandPropertyMember2020-04-012020-06-300001526113gnl:FinlandPropertyMembergnl:MultiPropertyLoanMember2020-06-300001526113gnl:FinlandPropertyMembergnl:MultiPropertyLoanMember2020-04-012020-06-300001526113gnl:MortgageNotesPayableFinlandMemberus-gaap:InterestRateSwapMember2019-01-012019-03-310001526113gnl:MortgageNotesPayableFinlandMemberus-gaap:InterestRateSwapMember2019-03-310001526113gnl:MortgageNotesPayableFinlandMember2019-01-012019-03-310001526113gnl:MortgageNotesPayableFinlandMember2020-01-012020-12-310001526113gnl:MortgageNotesPayableFinlandMember2019-01-012019-12-310001526113us-gaap:InterestRateSwapMember2018-07-012018-09-300001526113gnl:MultiPropertyLoanMemberus-gaap:InterestRateSwapMember2018-09-300001526113us-gaap:InterestRateFloorMember2018-07-012018-09-300001526113gnl:MultiPropertyLoanMemberus-gaap:InterestRateFloorMember2018-09-300001526113gnl:MultiPropertyLoanMember2018-09-300001526113gnl:MultiPropertyLoanMemberus-gaap:InterestExpenseMemberus-gaap:InterestRateSwapMember2020-01-012020-12-310001526113gnl:MultiPropertyLoanMemberus-gaap:InterestExpenseMemberus-gaap:InterestRateSwapMember2019-01-012019-12-310001526113gnl:MultiPropertyLoanMemberus-gaap:InterestExpenseMemberus-gaap:InterestRateSwapMember2018-01-012018-12-310001526113gnl:MultiPropertyLoanMember2020-12-310001526113us-gaap:InterestRateSwapMember2020-01-012020-12-310001526113us-gaap:InterestRateSwapMember2019-01-012019-12-310001526113us-gaap:InterestRateSwapMember2018-01-012018-12-310001526113us-gaap:InterestExpenseMemberus-gaap:InterestRateSwapMember2020-01-012020-12-310001526113us-gaap:InterestExpenseMemberus-gaap:InterestRateSwapMember2019-01-012019-12-310001526113us-gaap:InterestExpenseMemberus-gaap:InterestRateSwapMember2018-01-012018-12-310001526113us-gaap:NondesignatedMember2020-01-012020-12-310001526113us-gaap:NondesignatedMember2019-01-012019-12-310001526113us-gaap:NondesignatedMember2018-01-012018-12-310001526113currency:GBPus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2020-12-310001526113currency:GBPus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2019-12-310001526113currency:EURus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2020-12-310001526113currency:EURus-gaap:ForwardContractsMemberus-gaap:NondesignatedMember2019-12-310001526113currency:EURus-gaap:SwapMemberus-gaap:NondesignatedMember2020-12-310001526113currency:EURus-gaap:SwapMemberus-gaap:NondesignatedMember2019-12-310001526113us-gaap:NondesignatedMember2020-12-310001526113us-gaap:NondesignatedMember2019-12-310001526113gnl:AttheMarketProgramMembergnl:AgentMember2019-01-012019-03-310001526113gnl:AttheMarketProgramMembergnl:AgentMember2019-10-012019-12-310001526113gnl:AttheMarketProgramMembergnl:AgentMember2019-01-012019-12-310001526113gnl:AttheMarketProgramMembergnl:AgentMember2018-01-012018-12-310001526113gnl:PublicOfferingMember2018-08-202018-08-200001526113us-gaap:OverAllotmentOptionMember2018-08-202018-08-200001526113gnl:PublicOfferingMember2018-08-200001526113gnl:PublicOfferingMember2018-11-282018-11-280001526113gnl:PublicOfferingMember2018-11-280001526113us-gaap:OverAllotmentOptionMember2018-11-282018-11-280001526113us-gaap:SeriesBPreferredStockMember2019-12-130001526113us-gaap:SeriesBPreferredStockMember2019-11-202019-11-200001526113us-gaap:SeriesCPreferredStockMember2020-12-310001526113us-gaap:SeriesCPreferredStockMember2019-12-310001526113gnl:AttheMarketProgramMemberus-gaap:SeriesAPreferredStockMembergnl:AgentMember2018-03-310001526113gnl:AttheMarketProgramMemberus-gaap:SeriesAPreferredStockMembergnl:AgentMember2019-01-012019-12-310001526113gnl:AttheMarketProgramMembergnl:AgentMember2018-01-012018-12-310001526113gnl:AttheMarketProgramMemberus-gaap:SeriesAPreferredStockMembergnl:AgentMember2018-01-012018-12-310001526113gnl:AttheMarketProgramMemberus-gaap:SeriesBPreferredStockMembergnl:AgentMember2019-12-310001526113gnl:AttheMarketProgramMemberus-gaap:SeriesBPreferredStockMembergnl:AgentMember2020-01-012020-12-31gnl:quarterly_dividend0001526113us-gaap:SeriesBPreferredStockMembergnl:PublicOfferingMember2019-11-202019-11-200001526113us-gaap:SeriesBPreferredStockMemberus-gaap:OverAllotmentOptionMember2019-11-202019-11-200001526113us-gaap:SeriesBPreferredStockMembergnl:PublicOfferingMember2019-11-2000015261132020-01-012020-03-3100015261132020-03-012020-03-310001526113us-gaap:SeriesAPreferredStockMembersrt:MaximumMember2020-01-012020-12-310001526113srt:MinimumMemberus-gaap:SeriesAPreferredStockMember2020-01-012020-12-310001526113srt:MinimumMemberus-gaap:SeriesAPreferredStockMember2019-01-012019-12-310001526113srt:MinimumMemberus-gaap:SeriesAPreferredStockMember2018-01-012018-12-310001526113srt:MinimumMemberus-gaap:SeriesBPreferredStockMember2020-01-012020-12-310001526113us-gaap:SeriesCPreferredStockMember2020-04-300001526113us-gaap:SeriesCPreferredStockMember2020-04-012020-04-300001526113srt:MinimumMember2020-12-310001526113srt:MaximumMember2020-12-310001526113gnl:AssetManagementFeesMembergnl:ServiceProviderMembergnl:DefendantsVs.ServiceProvidersMember2019-01-012019-12-310001526113gnl:AssetManagementFeesMembergnl:ServiceProviderMembergnl:DefendantsVs.ServiceProvidersMember2018-01-012018-12-310001526113us-gaap:LimitedPartnerMember2020-12-310001526113us-gaap:LimitedPartnerMember2019-12-310001526113gnl:AmericanRealtyCapitalGlobalAdvisorsLlcMembergnl:AdvisorMember2020-12-310001526113gnl:AmericanRealtyCapitalGlobalAdvisorsLlcMembergnl:AdvisorMember2019-12-310001526113gnl:ThirdPartyProfessionalFeesAndOfferingCostsMember2020-12-310001526113gnl:ThirdPartyProfessionalFeesAndOfferingCostsMember2019-12-310001526113gnl:LeasingCommissionMembergnl:AdvisorMember2020-12-310001526113gnl:OverpaymentOfInvoicesMembergnl:AdvisorMember2020-12-310001526113gnl:ARGlobalLLCMembergnl:GlobalNetLeaseAdvisorsLLCMember2020-12-310001526113gnl:AdvisorAndScottJ.BowmanMembergnl:GlobalNetLeaseAdvisorsLLCMembersrt:ChiefExecutiveOfficerMember2020-12-310001526113gnl:LongTermIncentivePlanUnitsMember2020-01-012020-12-310001526113gnl:LongTermIncentivePlanUnitsMember2019-01-012019-12-310001526113gnl:LongTermIncentivePlanUnitsMember2018-01-012018-12-310001526113gnl:MultiYearOutperformancePlanMember2020-12-310001526113gnl:MultiYearOutperformancePlanMember2019-12-310001526113gnl:AmendedAdvisoryAgreementMembergnl:AdvisorMember2015-06-022015-06-020001526113gnl:AmendedAdvisoryAgreementMembergnl:AdvisorMember2018-08-142018-08-140001526113gnl:AmendedAdvisoryAgreementMembergnl:AdvisorMember2020-05-062020-05-060001526113gnl:RecurringFeesMembergnl:IncurredMembergnl:IncentiveCompensationMember2019-01-012019-12-310001526113gnl:RecurringFeesMembergnl:IncurredMembergnl:IncentiveCompensationMember2018-01-012018-12-310001526113srt:MinimumMembergnl:AmendedAdvisoryAgreementMembergnl:AdvisorMember2018-08-142018-08-140001526113gnl:AmendedAdvisoryAgreementMembergnl:AdvisorMembersrt:MaximumMember2018-08-142018-08-140001526113gnl:AdvisorMember2018-11-062018-11-060001526113gnl:AdvisorMember2018-11-060001526113gnl:AdvisorMembersrt:MaximumMember2018-11-060001526113gnl:AmendedAdvisoryAgreementMembergnl:AdvisorMember2015-06-020001526113gnl:AmendedAdvisoryAgreementMembergnl:AdvisorMembersrt:MaximumMember2015-06-020001526113gnl:PropertyManagerMembergnl:AmericanRealtyCapitalGlobalPropertiesLlcMembergnl:StandAloneSingleTenantNetLeasedMembersrt:MaximumMembergnl:GrossRevenueManagedPropertiesMember2020-12-310001526113gnl:PropertyManagerMembergnl:AllOtherPropertiesOtherthanStandAloneSingleTenantNetLeasedMembergnl:AmericanRealtyCapitalGlobalPropertiesLlcMembersrt:MaximumMembergnl:GrossRevenueManagedPropertiesMember2020-12-310001526113gnl:PropertyManagerMembergnl:AmericanRealtyCapitalGlobalPropertiesLlcMembergnl:GrossRevenueManagedPropertiesMembersrt:MaximumMember2020-12-3100015261132017-10-3100015261132019-02-012019-02-280001526113gnl:SingeTenantNetLeaseNotPartOfShoppingCenterMembergnl:GrossRevenueManagedPropertiesMembersrt:EuropeMembergnl:UnaffiliatedThirdPartyPropertyManagementServicesMember2020-01-012020-12-310001526113gnl:GrossRevenueManagedPropertiesMembergnl:AllOtherPropertyTypesOtherThanStandAloneSingleTenantNetLeasedAndNotPartOfShoppingCenterMembersrt:EuropeMembergnl:UnaffiliatedThirdPartyPropertyManagementServicesMember2020-01-012020-12-310001526113gnl:GrossRevenueManagedPropertiesMembergnl:StandAloneSingleTenantNetLeasedMembersrt:EuropeMembergnl:UnaffiliatedThirdPartyPropertyManagementServicesMember2020-01-012020-12-310001526113gnl:GrossRevenueManagedPropertiesMembergnl:AllOtherPropertiesOtherthanStandAloneSingleTenantNetLeasedMembersrt:EuropeMembergnl:UnaffiliatedThirdPartyPropertyManagementServicesMember2020-01-012020-12-310001526113gnl:AdvisorMember2020-01-012020-12-310001526113gnl:AssetManagementFeesMembergnl:AdvisorMember2020-01-012020-12-310001526113gnl:AmericanRealtyCapitalGlobalAdvisorsLlcMembergnl:AverageInvestedAssetsMembergnl:AdvisorMembergnl:GreaterOfMembersrt:MaximumMember2020-12-310001526113gnl:AmericanRealtyCapitalGlobalAdvisorsLlcMembergnl:AdvisorMembergnl:GreaterOfMembergnl:NetIncomeExcludingAdditionsToNonCashReservesAndGainsOnSalesOfAssetsMembersrt:MaximumMember2020-12-310001526113gnl:AssetManagementFeesMembergnl:RecurringFeesMembergnl:IncurredMember2020-01-012020-12-310001526113gnl:AssetManagementFeesMembergnl:RecurringFeesMembergnl:IncurredMember2019-01-012019-12-310001526113gnl:AssetManagementFeesMembergnl:RecurringFeesMembergnl:IncurredMember2018-01-012018-12-310001526113gnl:RecurringFeesMembergnl:IncurredMembergnl:PropertyManagementAndLeasingFeesMember2020-01-012020-12-310001526113gnl:RecurringFeesMembergnl:IncurredMembergnl:PropertyManagementAndLeasingFeesMember2019-01-012019-12-310001526113gnl:RecurringFeesMembergnl:IncurredMembergnl:PropertyManagementAndLeasingFeesMember2018-01-012018-12-310001526113gnl:IncurredMember2020-01-012020-12-310001526113gnl:IncurredMember2019-01-012019-12-310001526113gnl:IncurredMember2018-01-012018-12-310001526113us-gaap:GeneralAndAdministrativeExpenseMember2020-01-012020-12-310001526113us-gaap:GeneralAndAdministrativeExpenseMember2019-01-012019-12-310001526113us-gaap:GeneralAndAdministrativeExpenseMember2018-01-012018-12-310001526113gnl:AdvisorMembergnl:MinimumBaseManagementFeeMember2020-01-012020-12-310001526113gnl:AdvisorMembergnl:VariableBaseManagementFeeMember2020-01-012020-12-310001526113gnl:AdvisorMembergnl:VariableBaseManagementFeeMember2019-01-012019-12-310001526113gnl:AdvisorMembergnl:VariableBaseManagementFeeMember2018-01-012018-12-310001526113us-gaap:EmployeeStockOptionMembergnl:StockOptionPlanMember2020-12-310001526113us-gaap:EmployeeStockOptionMembergnl:StockOptionPlanMember2019-12-310001526113us-gaap:EmployeeStockOptionMembergnl:StockOptionPlanMember2018-12-310001526113us-gaap:EmployeeStockOptionMembergnl:StockOptionPlanMember2019-01-012019-12-310001526113us-gaap:EmployeeStockOptionMembergnl:StockOptionPlanMember2018-01-012018-12-310001526113us-gaap:EmployeeStockOptionMembergnl:StockOptionPlanMember2020-01-012020-12-310001526113gnl:IndependentDirectorsMembergnl:IncentiveRestrictedSharePlanMember2020-12-310001526113gnl:NonExecutiveChairMembergnl:IncentiveRestrictedSharePlanMember2020-12-310001526113gnl:DirectorsServingonCommitteesMembergnl:IncentiveRestrictedSharePlanMember2020-12-310001526113gnl:IncentiveRestrictedSharePlanMember2020-12-310001526113gnl:DirectorsServingonCommitteesMemberus-gaap:RestrictedStockUnitsRSUMembergnl:IncentiveRestrictedSharePlanMember2020-01-012020-12-310001526113srt:DirectorMemberus-gaap:RestrictedStockUnitsRSUMembergnl:IncentiveRestrictedSharePlanMember2020-01-012020-12-310001526113us-gaap:RestrictedStockUnitsRSUMembergnl:IncentiveRestrictedSharePlanMember2020-01-012020-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2017-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2018-01-012018-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2018-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2019-01-012019-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2019-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2020-01-012020-12-310001526113gnl:RestrictedSharePlanMemberus-gaap:RestrictedStockMember2020-12-310001526113us-gaap:RestrictedStockMember2020-09-012020-09-300001526113us-gaap:RestrictedStockMember2020-07-012020-09-300001526113us-gaap:RestrictedStockMember2020-09-300001526113gnl:ShareBasedPaymentArrangementTrancheFourMembergnl:AdvisorMemberus-gaap:RestrictedStockMember2020-07-012020-09-300001526113us-gaap:ShareBasedCompensationAwardTrancheOneMembergnl:AdvisorMemberus-gaap:RestrictedStockMember2020-07-012020-09-300001526113gnl:AdvisorMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMemberus-gaap:RestrictedStockMember2020-07-012020-09-300001526113us-gaap:ShareBasedCompensationAwardTrancheTwoMembergnl:AdvisorMemberus-gaap:RestrictedStockMember2020-07-012020-09-300001526113us-gaap:ShareBasedCompensationAwardTrancheOneMemberus-gaap:RestrictedStockMember2020-07-012020-09-300001526113gnl:RestrictedSharePlanMember2020-01-012020-12-310001526113gnl:RestrictedSharePlanMember2019-01-012019-12-310001526113gnl:RestrictedSharePlanMember2018-01-012018-12-310001526113gnl:RestrictedSharePlanMember2020-12-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2019-01-010001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2019-02-280001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2019-01-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2020-12-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMemberus-gaap:NoncontrollingInterestMember2020-01-012020-12-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMemberus-gaap:NoncontrollingInterestMember2019-01-012019-12-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMemberus-gaap:NoncontrollingInterestMember2018-01-012018-12-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2018-01-012018-12-310001526113us-gaap:ShareBasedPaymentArrangementNonemployeeMembergnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2018-01-012018-12-310001526113gnl:A2018MultiYearOutperformancePlanMember2018-06-012018-06-010001526113gnl:A2018MultiYearOutperformancePlanMember2018-06-010001526113gnl:A2018MultiYearOutperformancePlanMembergnl:AdvisorMembergnl:LongTermIncentivePlanUnitsMember2018-06-022018-06-020001526113us-gaap:ShareBasedCompensationAwardTrancheOneMembergnl:A2018MultiYearOutperformancePlanMember2018-06-022018-06-020001526113us-gaap:ShareBasedCompensationAwardTrancheTwoMembergnl:A2018MultiYearOutperformancePlanMember2018-06-022018-06-020001526113gnl:A2018MultiYearOutperformancePlanMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMember2018-06-022018-06-020001526113gnl:ShareBasedCompensationAwardTrancheFourMembergnl:A2018MultiYearOutperformancePlanMember2018-06-022018-06-020001526113srt:MinimumMembergnl:A2018MultiYearOutperformancePlanMembergnl:LinearInterpolationTierOneMember2018-06-022018-06-020001526113gnl:A2018MultiYearOutperformancePlanMembersrt:MaximumMembergnl:LinearInterpolationTierOneMember2018-06-022018-06-020001526113gnl:A2018MultiYearOutperformancePlanMembersrt:MaximumMembergnl:LinearInterpolationTierTwoMember2018-06-022018-06-020001526113srt:MinimumMembergnl:A2018MultiYearOutperformancePlanMembergnl:LinearInterpolationTierTwoMember2018-06-022018-06-020001526113srt:MinimumMembergnl:A2018MultiYearOutperformancePlanMembergnl:LinearInterpolationTierOneMember2018-07-192018-07-190001526113gnl:A2018MultiYearOutperformancePlanMembersrt:MaximumMembergnl:LinearInterpolationTierOneMember2018-07-192018-07-190001526113srt:MinimumMembergnl:A2018MultiYearOutperformancePlanMembergnl:LinearInterpolationTierTwoMember2018-07-192018-07-190001526113gnl:A2018MultiYearOutperformancePlanMembersrt:MaximumMembergnl:LinearInterpolationTierTwoMember2018-07-192018-07-190001526113gnl:MultiYearOutperformancePlanMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMemberus-gaap:ShareBasedCompensationAwardTrancheOneMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMembersrt:MinimumMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMembersrt:MaximumMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMembersrt:MinimumMemberus-gaap:ShareBasedCompensationAwardTrancheOneMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMemberus-gaap:ShareBasedCompensationAwardTrancheOneMembersrt:MaximumMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMembersrt:MinimumMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMembersrt:MaximumMember2015-06-022015-06-020001526113gnl:MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2015-06-022018-06-020001526113srt:DirectorMember2020-01-012020-12-310001526113srt:DirectorMember2019-01-012019-12-310001526113srt:DirectorMember2018-01-012018-12-310001526113us-gaap:ShareBasedCompensationAwardTrancheOneMembergnl:LongTermIncentivePlanUnitsMember2020-01-012020-12-310001526113us-gaap:ShareBasedCompensationAwardTrancheTwoMembergnl:LongTermIncentivePlanUnitsMember2020-01-012020-12-310001526113gnl:LongTermIncentivePlanUnitsMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMember2020-01-012020-12-310001526113us-gaap:RestrictedStockUnitsRSUMember2020-01-012020-12-310001526113us-gaap:RestrictedStockUnitsRSUMember2019-01-012019-12-310001526113us-gaap:RestrictedStockUnitsRSUMember2018-01-012018-12-310001526113us-gaap:RestrictedStockMember2020-01-012020-12-310001526113us-gaap:RestrictedStockMember2019-01-012019-12-310001526113us-gaap:RestrictedStockMember2018-01-012018-12-310001526113gnl:LongTermIncentivePlanUnitsMember2020-01-012020-12-310001526113gnl:LongTermIncentivePlanUnitsMember2019-01-012019-12-310001526113gnl:LongTermIncentivePlanUnitsMember2018-01-012018-12-310001526113us-gaap:RestrictedStockMember2020-01-012020-12-310001526113gnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2019-01-012019-12-310001526113gnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2018-01-012018-12-310001526113gnl:A2018MultiYearOutperformancePlanMembergnl:LongTermIncentivePlanUnitsMember2020-01-012020-12-3100015261132020-07-012020-09-3000015261132020-10-012020-12-3100015261132019-01-012019-03-3100015261132019-04-012019-06-3000015261132019-10-012019-12-310001526113gnl:McDonaldsCarlisleUKMember2020-12-310001526113gnl:WickesBuildingSuppliesIBlackpoolUKMember2020-12-310001526113gnl:EverythingEverywhereMerthyrTydfilUKMember2020-12-310001526113gnl:ThamesWaterSwindonUKMember2020-12-310001526113gnl:WickesBuildingSuppliesIITunstallUKMember2020-12-310001526113gnl:PPDGlobalLabsHighlandHeightsKYMember2020-12-310001526113gnl:NortherRockSunderlandUKMember2020-12-310001526113gnl:WickesBuildingSuppliesIIICliftonUKMember2020-12-310001526113gnl:XPOLogisticsAuroraNEMember2020-12-310001526113gnl:XPOLogisticsGrandRapidsMIMember2020-12-310001526113gnl:XPOLogisticsRivertonILMember2020-12-310001526113gnl:XPOLogisticsSalinaKSMember2020-12-310001526113gnl:XPOLogisticsUhrichsvilleOHMember2020-12-310001526113gnl:XPOLogisticsVincennesINMember2020-12-310001526113gnl:XPOLogisticsWaiteParkMNMember2020-12-310001526113gnl:WolverineHowardCityMIMember2020-12-310001526113gnl:EncantoBaymonPRMember2020-12-310001526113gnl:EncantoCaguasPRMember2020-12-310001526113gnl:EncantoCarolinaIPRMember2020-12-310001526113gnl:EncantoCarolinaIIPRMember2020-12-310001526113gnl:EncantoGuayamaPRMember2020-12-310001526113gnl:EncantoMayaguezPRMember2020-12-310001526113gnl:EncantoPonceIPRMember2020-12-310001526113gnl:EncantoPonceIIPRMember2020-12-310001526113gnl:EncantoPuertoNeuvoPRMember2020-12-310001526113gnl:EncantoQuebradaArenaPRMember2020-12-310001526113gnl:EncantoRioPiedrasIPRMember2020-12-310001526113gnl:EncantoRioPiedrasIIPRMember2020-12-310001526113gnl:EncantoSanGermanPRMember2020-12-310001526113gnl:EncantoSanJuanIPRMember2020-12-310001526113gnl:EncantoSanJuanIIPRMember2020-12-310001526113gnl:EncantoSanJuanIIIPRMember2020-12-310001526113gnl:EncantoToaBajaPRMember2020-12-310001526113gnl:EncantoVegaBajaPRMember2020-12-310001526113gnl:RheinmetallMember2020-12-310001526113gnl:GEAviationGrandRapidsMIMember2020-12-310001526113gnl:ProvidentFinancialBradfordUKMember2020-12-310001526113gnl:CrownCrestLeicesterUKMember2020-12-310001526113gnl:TraneDavenportIAMember2020-12-310001526113gnl:AvivaSheffieldUKMember2020-12-310001526113gnl:DFSTradingBriggUKMember2020-12-310001526113gnl:DFSTradingCarcroftUK1Member2020-12-310001526113gnl:DFSTradingCarcroftUK2Member2020-12-310001526113gnl:DFSTradingDarleyDaleUKMember2020-12-310001526113gnl:DFSTradingSomercotesUKMember2020-12-310001526113gnl:GovernmentServicesAdministrationFanklinTNMember2020-12-310001526113gnl:NationalOilwellWillistonNDMember2020-12-310001526113gnl:GovernmentServicesAdministrationDoverDEMember2020-12-310001526113gnl:GovernmentServicesAdministrationGermantownPAMember2020-12-310001526113gnl:OBIDIYMayenGermanyMember2020-12-310001526113gnl:DFSTradingSouthYorkshireUKMember2020-12-310001526113gnl:DFSTradingYorkshireUKMember2020-12-310001526113gnl:GovernmentServicesAdministrationDallasTXMember2020-12-310001526113gnl:GovernmentServicesAdministrationMissionTXMember2020-12-310001526113gnl:GovernmentServicesAdministrationInternationalFallsMNMember2020-12-310001526113gnl:IndianaDepartmentofRevenueIndianapolsINMember2020-12-310001526113gnl:NationalOilwellPleasantonITXMember2020-12-310001526113gnl:NissanMurfreesboroTNMember2020-12-310001526113gnl:GovernmentServicesAdministrationLakewoodCOMember2020-12-310001526113gnl:LippertComponentsSouthBendINMember2020-12-310001526113gnl:AxonEnergyProductsConroeTXMember2020-12-310001526113gnl:AxonEnergyProductsHoustonTX1Member2020-12-310001526113gnl:AxonEnergyProductsHoustonTX2Member2020-12-310001526113gnl:BellSupplyCoCarrizoSpringsTXMember2020-12-310001526113gnl:BellSupplyCoCleburneTXMember2020-12-310001526113gnl:BellSupplyCoFriersonLAMember2020-12-310001526113gnl:BellSupplyCoGainesvilleTXMember2020-12-310001526113gnl:BellSupplyCoKilldeerNDMember2020-12-310001526113gnl:BellSupplyCoWillistonNDMember2020-12-310001526113gnl:GEOilGasCantonOHMember2020-12-310001526113gnl:GEOilGasOdessaTXMember2020-12-310001526113gnl:LhoistIrvingTXMember2020-12-310001526113gnl:SelectEnergyServicesDeBerryTXMember2020-12-310001526113gnl:SelectEnergyServicesGainesvilleTXMember2020-12-310001526113gnl:SelectEnergyServicesVictoriaTXMember2020-12-310001526113gnl:BellSupplyCoJacksboroTXMember2020-12-310001526113gnl:BellSupplyCoKenedyTXMember2020-12-310001526113gnl:SelectEnergyServicesAliceTXMember2020-12-310001526113gnl:SelectEnergyServicesDilleyTXMember2020-12-310001526113gnl:SelectEnergyServicesKenedyTXMember2020-12-310001526113gnl:SelectEnergyServicesLaredoTXMember2020-12-310001526113gnl:SuperiorEnergyServicesGainesvilleTXMember2020-12-310001526113gnl:SuperiorEnergyServicesJacksboroTXMember2020-12-310001526113gnl:AmcorPackagingWorkingtonUKMember2020-12-310001526113gnl:GovernmentServicesAdministrationRatonNMMember2020-12-310001526113gnl:NimbleStorageSanJoseCAMember2020-12-310001526113gnl:FedExAmarilloTXMember2020-12-310001526113gnl:FedExChicopeeMAMember2020-12-310001526113gnl:FedExSanAntonioTXMember2020-12-310001526113gnl:SandozPrincetonNJMember2020-12-310001526113gnl:WyndhamBransonMOMember2020-12-310001526113gnl:ValassisLivoniaMIMember2020-12-310001526113gnl:GovernmentServicesAdministrationFortFairfieldMEMember2020-12-310001526113gnl:ATTServicesInc.SanAntonioTXMember2020-12-310001526113gnl:PNCBankEriePAMember2020-12-310001526113gnl:PNCBankScrantonPAMember2020-12-310001526113gnl:ContinentalTireForMillSCMember2020-12-310001526113gnl:FujitsuOfficePropertiesManchesterUKMember2020-12-310001526113gnl:BPOilWoottonBassettUKMember2020-12-310001526113gnl:HBOSDerbyUKMember2020-12-310001526113gnl:HBOSSt.HelensUKMember2020-12-310001526113gnl:HBOSWarringtonUKMember2020-12-310001526113gnl:MalthurstShiptonthorpeUKMember2020-12-310001526113gnl:MalthurstYorkshireUKMember2020-12-310001526113gnl:StanleyBlackDeckerWestervilleOHMember2020-12-310001526113gnl:ThermoFisherKalamazooMIMember2020-12-310001526113gnl:CapgeminiBirminghamUKMember2020-12-310001526113gnl:MerckMadisonNJMember2020-12-310001526113gnl:GovernmentServicesAdministrationRangeleyMEMember2020-12-310001526113gnl:HewlettPackardNewcastleUKMember2020-12-310001526113gnl:InteirAutomotiveRedditchUKMember2020-12-310001526113gnl:WasteManagementWinstonSalemNCMember2020-12-310001526113gnl:FedEXWinonaMNMember2020-12-310001526113gnl:DollarGeneralAllenOKMember2020-12-310001526113gnl:DollarGeneralCherokeeKSMember2020-12-310001526113gnl:DollarGeneralClearwaterKSMember2020-12-310001526113gnl:DollarGeneralDexterNMMember2020-12-310001526113gnl:DollarGeneralElmoreCityOKMember2020-12-310001526113gnl:DollarGeneralEuniceNMMember2020-12-310001526113gnl:DollarGeneralGoreOKMember2020-12-310001526113gnl:DollarGeneralKingstonOKMember2020-12-310001526113gnl:DollarGeneralLordsburgNMMember2020-12-310001526113gnl:DollarGeneralLyonsKSMember2020-12-310001526113gnl:DollarGeneralMansfieldLAMember2020-12-310001526113gnl:DollarGeneralNelighNEMember2020-12-310001526113gnl:DollarGeneralNormanOKMember2020-12-310001526113gnl:DollarGeneralPeggsOKMember2020-12-310001526113gnl:DollarGeneralSantaRosaNMMember2020-12-310001526113gnl:DollarGeneralSapulpaOKMember2020-12-310001526113gnl:DollarGeneralSchuylerNEMember2020-12-310001526113gnl:DollarGeneralTahlequahOKMember2020-12-310001526113gnl:DollarGeneralTownvillePAMember2020-12-310001526113gnl:DollarGeneralValleyFallsKSMember2020-12-310001526113gnl:DollarGeneralWymoreNEMember2020-12-310001526113gnl:FedExBohemiaNYMember2020-12-310001526113gnl:FedExWatertownNYMember2020-12-310001526113gnl:ShawAeroNaplesFLMember2020-12-310001526113gnl:MallinckrodtSt.LouisMOMember2020-12-310001526113gnl:KukaWarehouseSterlingHeightsMIMember2020-12-310001526113gnl:TrinityHealthLivoniaMIMember2020-12-310001526113gnl:TrinityHealthLivoniaMIIIDomain2020-12-310001526113gnl:FedExHebronKYMember2020-12-310001526113gnl:FedExLexingtonKYMember2020-12-310001526113gnl:GEAviationCincinnatiOHMember2020-12-310001526113gnl:BradfordBingleyBingleyUKMember2020-12-310001526113gnl:DNVGLDublinOHMember2020-12-310001526113gnl:RexamReckinghausenGermanyMember2020-12-310001526113gnl:CJEnergyIHoustonTXMember2020-12-310001526113gnl:FedExLakeCharlesLAMember2020-12-310001526113gnl:OnguardHavreDeGraceMDMember2020-12-310001526113gnl:AxonEnergyProductsHoustonTXMember2020-12-310001526113gnl:MetroTonicHallePeissenGermanyMember2020-12-310001526113gnl:TokmanniMatsalaFinlandMember2020-12-310001526113gnl:FifeCouncilDunfermlineUKMember2020-12-310001526113gnl:GovernmentServicesAdministrationRapidCitySDMember2020-12-310001526113gnl:KPNBVHoutenNetherlandsMember2020-12-310001526113gnl:FollettSchoolMcHenryILMember2020-12-310001526113gnl:QuestDiagnosticsInc.SantaClaritaCAMember2020-12-310001526113gnl:DieboldNorthCantonOHMember2020-12-310001526113gnl:WeatherfordInternationalOdessaTXMember2020-12-310001526113gnl:AMCastleWichitaKSMember2020-12-310001526113gnl:FedExBillericaMAMember2020-12-310001526113gnl:ConstelliumAutoWayneMIMember2020-12-310001526113gnl:CJEnergyIIHoustonTXMember2020-12-310001526113gnl:FedexVIISalinaUTMember2020-12-310001526113gnl:FedexVIIIPierreSDMember2020-12-310001526113gnl:CrownGroupFraserMIMember2020-12-310001526113gnl:CrownGroupJonesvilleMIMember2020-12-310001526113gnl:CrownGroupLogansportINMember2020-12-310001526113gnl:CrownGroupMarionSCMember2020-12-310001526113gnl:JITSteelServicesChattanoogaTNPropertyOneMember2020-12-310001526113gnl:JITSteelServicesChattanoogaTNPropertyTwoMember2020-12-310001526113gnl:MapesSprowlSteelLtd.ElkGroveILMember2020-12-310001526113gnl:BeaconHealthSystemInc.SouthBendINMember2020-12-310001526113gnl:NationalOilwellPleasantonTXMember2020-12-310001526113gnl:OfficeDepotVenloNETHMember2020-12-310001526113gnl:FinnairHelsinkiFINMember2020-12-310001526113gnl:HannibalHoustonTXMember2020-12-310001526113gnl:FedExGroundMankatoMNMember2020-12-310001526113gnl:AuchanFranceMember2020-12-310001526113gnl:DCNSGuipavasFranceMember2020-12-310001526113gnl:DeutscheBankKirchbergLuxembourgMember2020-12-310001526113gnl:FedExGreensboroNCMember2020-12-310001526113gnl:FosterWheelerMember2020-12-310001526113gnl:HarperCollinsMember2020-12-310001526113gnl:IDLogisticsLandersheimFranceMember2020-12-310001526113gnl:IDLogisticsIIFranceMember2020-12-310001526113gnl:IDLogisticsIGermanyMember2020-12-310001526113gnl:INGAmsterdamMember2020-12-310001526113gnl:NCRDundeeUnitedKingdomMember2020-12-310001526113gnl:PoleEmploiFranceMember2020-12-310001526113gnl:SagemcomMember2020-12-310001526113gnl:WorldlineMember2020-12-310001526113gnl:CottBeveragesIncSikestonMOMember2020-12-310001526113gnl:FedExGreatFallsMTMember2020-12-310001526113gnl:FedEXMorgantownWVMember2020-12-310001526113gnl:BridgestoneTireMt.OliveTownshipNJMember2020-12-310001526113gnl:NSASt.JohnsburyISt.JohnsburyVTMember2020-12-310001526113gnl:NSASt.JohnsburyIISt.JohnsburyVTMember2020-12-310001526113gnl:NSASt.JohnsburyIIISt.JohnsburyVTMember2020-12-310001526113gnl:GKNAerospaceBlueAshOHMember2020-12-310001526113gnl:TremecWixonMIMember2020-12-310001526113gnl:NSAIndustriesGrovetonNHMember2020-12-310001526113gnl:CumminsOmahaNEMember2020-12-310001526113gnl:GovernmentServicesAdministrationGainsvilleFLMember2020-12-310001526113gnl:ChemoursPassChristianMSMember2020-12-310001526113gnl:LeeSteelWyomingMIMember2020-12-310001526113gnl:LSISteelIChicagoILMember2020-12-310001526113gnl:LSISteelIIChicagoILMember2020-12-310001526113gnl:LSISteelIVChicagoILMember2020-12-310001526113gnl:FiatChrylserSterlingHeightsMIMember2020-12-310001526113gnl:ContractorsSteelBellevilleMIMember2020-12-310001526113gnl:ContractorsSteelHammondINMember2020-12-310001526113gnl:ContractorsSteelLivoniaMIMember2020-12-310001526113gnl:ContractorsSteelTwinsburgOHMember2020-12-310001526113gnl:ContractorsSteelWyomingMIMember2020-12-310001526113gnl:FedExBlackfootIDMember2020-12-310001526113gnl:DuPontPioneerSpencerIAMember2020-12-310001526113gnl:RubbermainAkronOHMember2020-12-310001526113gnl:NetScoutAllenTXMember2020-12-310001526113gnl:BushIndustriesJamestownNYMember2020-12-310001526113gnl:FedExGreenvilleNCMember2020-12-310001526113gnl:PenskeRomulusMIMember2020-12-310001526113gnl:NSAIndustriesGeorgetownMAMember2020-12-310001526113gnl:LKQCorp.CullmanALMember2020-12-310001526113gnl:GrupoAntolinNorthAmericaInc.Member2020-12-310001526113gnl:WalgreensPittsburghPAMember2020-12-310001526113gnl:VersaFlexKansasCityKSMember2020-12-310001526113gnl:CumminsGilletteWYMember2020-12-310001526113gnl:StanleySecurityFishersINMember2020-12-310001526113gnl:SierraNevadaColoradoSpringsCOMember2020-12-310001526113gnl:EQTWaynesburgPAMember2020-12-310001526113gnl:HanesCalhounGAMember2020-12-310001526113gnl:UnionPartnersAuroraILMember2020-12-310001526113gnl:UnionPartnersDearbornMIMember2020-12-310001526113gnl:ComDocNorthCantonOHMember2020-12-310001526113gnl:MetalTechnologiesBloomfieldINMember2020-12-310001526113gnl:EncompassHealthBirminghamALMember2020-12-310001526113gnl:HeatcraftTiftonGAMember2020-12-310001526113gnl:CFSauerSLBIMauldinSCMember2020-12-310001526113gnl:CFSauerSLBIIMauldinSCMember2020-12-310001526113gnl:CFSauerSLBIIIMauldinSCMember2020-12-310001526113gnl:CFSauerSLBIVMauldinSCMember2020-12-310001526113gnl:CFSauerSLBOrangeFLMember2020-12-310001526113gnl:CFSauerSLBSanLuisObispoCAMember2020-12-310001526113gnl:SWECOFlorenceKYMember2020-12-310001526113gnl:ViaviSolutionsISantaRosaCAMember2020-12-310001526113gnl:ViaviSolutionsIISantaRosaCAMember2020-12-310001526113gnl:FaureciaAuburnHillsMIMember2020-12-310001526113gnl:PlasmaGarlandTXMember2020-12-310001526113gnl:PlasmaElPasoTXMember2020-12-310001526113gnl:PlasmaBradentonFlMember2020-12-310001526113gnl:PlasmaHickoryNCMember2020-12-310001526113gnl:PlasmaIrvingTXMember2020-12-310001526113gnl:PlasmaLakeCharlesLAMember2020-12-310001526113gnl:PlasmaMissionTXMember2020-12-310001526113gnl:PlasmaMeridianMSMember2020-12-310001526113gnl:PlasmaPeoriaILMember2020-12-310001526113gnl:WhirlpoolClevelandTNMember2020-12-310001526113gnl:WhirlpoolClydeOHMember2020-12-310001526113gnl:WhirlpoolIIClydeOHMember2020-12-310001526113gnl:WhirlpoolFindlayOHMember2020-12-310001526113gnl:WhirlpoolMarionOHMember2020-12-310001526113gnl:WhirlpoolOttawaOHMember2020-12-310001526113gnl:FedExBathurstCanadaMember2020-12-310001526113gnl:FedExWoodstockCanadaMember2020-12-310001526113gnl:NSAIndustriesFranklinNHMember2020-12-310001526113gnl:ViaviSolutionsIIISantaRosaCAMember2020-12-310001526113gnl:CSTKMember2020-12-310001526113gnl:MetalTechnologiesBloomfieldIINMember2020-12-310001526113gnl:WhirlpoolFabrianoIITAMember2020-12-310001526113gnl:WhirlpoolFabrianoIIITAMember2020-12-310001526113gnl:FedExMonctonCanadaMember2020-12-310001526113gnl:KlaussnerAsheboroINCMember2020-12-310001526113gnl:KlaussnerAsheboroIINCMember2020-12-310001526113gnl:KlaussnerAsheboroIIINCMember2020-12-310001526113gnl:KlaussnerCandorNCMember2020-12-310001526113gnl:PlasmaDanvilleVAMember2020-12-310001526113gnl:PlasmaDesMoinesIAMember2020-12-310001526113gnl:PlasmaEriePAMember2020-12-310001526113gnl:PlasmaYoungstownOHMember2020-12-310001526113gnl:PlasmaDaytonOHMember2020-12-310001526113gnl:PlasmaNorthLasVegasNVMember2020-12-310001526113gnl:KlaussnerAsheboroIVNCMember2020-12-310001526113gnl:NSAIndustriesFranklinINHMember2020-12-310001526113gnl:JohnsonControlsLasRozasDeMadridSpainMember2020-12-310001526113gnl:JohnsonControlsManchesterIUKMember2020-12-310001526113gnl:JohnsonControlsManchesterIIUKMember2020-12-310001526113gnl:BroadridgeFinancialSolutionsElDoradoHillsCAMember2020-12-310001526113gnl:BroadridgeFinancialSolutionsKansasCityMOMember2020-12-310001526113gnl:BroadridgeFinancialSolutionsSouthWindsorCTMember2020-12-310001526113gnl:BroadridgeFinancialSolutionsFalconerNYMember2020-12-310001526113gnl:ZFActiveSafetyMember2020-12-310001526113gnl:JohnsonControlsMontignyLeBretonneuxFranceMember2020-12-310001526113gnl:FCAUSAMember2020-12-310001526113gnl:VariousPropertiesMember2020-12-310001526113gnl:UKMultiPropertyCrossCollateralizedLoanMembercurrency:USDus-gaap:MortgagesMember2020-12-310001526113gnl:FinlandPropertyMembercurrency:USDus-gaap:MortgagesMember2020-12-310001526113currency:USDus-gaap:MortgagesMembergnl:GermanyPropertyMember2020-12-310001526113currency:USDgnl:BeneluxMemberus-gaap:MortgagesMember2020-12-310001526113currency:USDus-gaap:MortgagesMembergnl:FrenchPropertiesMember2020-12-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)
☒			ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2020

OR

☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _________ to __________

Commission file number: 001-37390

Global Net Lease, Inc.

(Exact name of registrant as specified in its charter)

Maryland						45-2771978
(State or other jurisdiction of incorporation or organization)						(I.R.S. Employer Identification No.)

650 Fifth Ave., 30th Floor, New York, NY                 10019

______________________________________________________________________________________ _________________________________________________________________________

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (212) 415-6500

Securities registered pursuant to section 12(b) of the Act:

Title of each class

Trading Symbols

Name of each exchange on which registered

Common Stock, $0.01 par value per share

GNL

New York Stock Exchange

7.25% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share

GNL PR A

New York Stock Exchange

6.875% Series B Cumulative Redeemable Perpetual Preferred Stock, $0.01 par value per share

GNL PR B

New York Stock Exchange

Preferred Stock Purchase Rights

New York Stock Exchange

Securities registered pursuant to section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐ 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No

The aggregate market value of the registrant’s common stock held by non-affiliates of the registrant was $1,497,043,496 based on the closing sales price on the New York Stock Exchange as of June 30, 2020, the last business day of the registrant’s most recently completed second fiscal quarter.

On February 19, 2021, the registrant had 90,574,467 shares of common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s proxy statement to be delivered to stockholders in connection with the registrant’s 2021 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K. The registrant intends to file its proxy statement within 120 days after its fiscal year end.

						Page
PART I
Item 1.			Business			4
Item 1A.			Risk Factors			7
Item 1B.			Unresolved Staff Comments			32
Item 2.			Properties			33
Item 3.			Legal Proceedings			40
Item 4.			Mine Safety Disclosures			40
PART II
Item 5.			Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities			41
Item 6.			Selected Financial Data			42
Item 7.			Management’s Discussion and Analysis of Financial Condition and Results of Operations			44
Item 7A.			Quantitative and Qualitative Disclosures About Market Risk			64
Item 8.			Financial Statements and Supplementary Data			67
Item 9.			Changes in and Disagreements With Accountants on Accounting and Financial Disclosure			67
Item 9A.			Controls and Procedures			67
Item 9B.			Other Information			67
PART III
Item 10.			Directors, Executive Officers and Corporate Governance			68
Item 11.			Executive Compensation			68
Item 12.			Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters			68
Item 13.			Certain Relationships and Related Transactions, and Director Independence			68
Item 14.			Principal Accounting Fees and Services			68
PART IV
Item 15.			Exhibits and Financial Statement Schedules			69
Item 16.			Form 10-K Summary			72
SIGNATURES						73

Forward-Looking Statements

Certain statements included in this Annual Report on Form 10-K are forward-looking statements. Those statements include statements regarding the intent, belief or current expectations of Global Net Lease, Inc. (“we,” “our” or “us”), Global Net Lease Advisors, LLC (the “Advisor”) and members of our management team, as well as the assumptions on which such statements are based, and generally are identified by the use of words such as “may,” “will,” “seeks,” “anticipates,” “believes,” “estimates,” “expects,” “plans,” “intends,” “should” or similar expressions. Actual results may differ materially from those contemplated by such forward-looking statements. Further, forward-looking statements speak only as of the date they are made, and we undertake no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time, unless required by law.

These forward-looking statements are subject to risks, uncertainties and other factors, many of which are outside of our control, which could cause actual results to differ materially from the results contemplated by the forward-looking statements. Some of the risks and uncertainties, although not all risks and uncertainties, that could cause our actual results to differ materially from those presented in our forward-looking statements are set forth in “Risk Factors” (Part I, Item 1A of this Annual Report on Form 10-K), “Quantitative and Qualitative Disclosures about Market Risk” (Part II, Item 7A), and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” (Part II, Item 7).