XML 50 R39.htm IDEA: XBRL DOCUMENT
v3.26.1

Basis of Presentation (Details) - property | Jun. 30, 2026 | Jun. 30, 2025 | Jun. 10, 2025 | Mar. 25, 2025
--- | --- | --- | --- | ---
Summary of Significant Accounting Policies [Line Items] |  |  |  |
Number of retail properties | 798 |  |  |
Discontinued Operations, Held-for-Sale or Disposed of by Sale | Multi-tenant disposition receivable |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |
Number of retail properties |  |  | 28 | 59
Discontinued Operations, Held-for-Sale or Disposed of by Sale | RCG Multi Tenant Retail Assets | Multi-tenant disposition receivable |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |
Number of retail properties | 100 |  |  |
Discontinued Operations, Held-for-Sale or Disposed of by Sale | RCG Multi Tenant Retail Assets | RCG Venture Holdings, LLC | Multi-tenant disposition receivable |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |
Number of retail properties |  | 100 |  |

X
- Definition Summary of Significant Accounting Policies + References No definition available. + Details
Name: | gnl_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | gnl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of real estate properties owned as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-2 + Details
Name: | us-gaap_NumberOfRealEstateProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsHeldForSaleOrDisposedOfBySaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=gnl_MultiTenantRetailPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=gnl_RCGMultiTenantRetailAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | gnl_BuyerTypeAxis=gnl_RCGVentureHoldingsLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |