XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.23.2

Real Estate and Intangible Assets - Additional Information (Details) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 23, 2023 USD ($) a | Jun. 30, 2023 USD ($) a property | Jun. 30, 2022 USD ($) a | Jun. 30, 2023 USD ($) a contract property | Jun. 30, 2022 USD ($) a | Dec. 31, 2021 USD ($) a contract | Dec. 31, 2022 USD ($) property
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Depreciation expense |  | $ 8,800,000 | $ 8,100,000 | $ 17,700,000 | $ 16,200,000 |  |
Tenant improvements, net of depreciation |  | 2,700,000 |  | 2,700,000 |  |  | $ 3,000,000
Tenant improvements, rental revenue |  | 136,000 | 103,000 | 284,000 | 207,000 |  |
Amortization expense related to intangible assets |  | 256,000 | 245,000 | 508,000 | 511,000 |  |
Amortization of acquired above market lease values and deferred revenue |  | 200,000 | 122,000 | 359,000 | 203,000 |  |
Total accretion related to below-market lease values and deferred revenue |  | $ 44,000 | 44,000 | 88,000 | 89,000 |  |
Operating revenue |  |  | 71,000 |  | 71,000 |  |
Net income (loss) |  |  | 0 | $ 60,000 | 29,000 |  |
Area of real estate property (in acres) | a |  | 115,593 |  | 115,593 |  |  |
Net gain on sale |  | $ 6,394,000 | (305,000) | $ 5,914,000 | (1,280,000) |  |
Loss from investments in unconsolidated entities |  | $ (33,000) | 0 | $ (60,000) | (29,000) |  |
Acre-feet of Water | a |  | 45,016 |  | 45,016 |  |  |
Lease revenue, net |  | $ 21,210,000 | 20,293,000 | $ 42,412,000 | 40,236,000 |  |
Number of impaired properties | property |  | 0 |  | 0 |  |  | 0
Impairments recognized on real estate |  |  |  | $ 0 |  |  |
2022 Acquisitions |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Net income (loss) |  |  | $ 38,000 |  | $ 38,000 |  |
Area of real estate property (in acres) | a |  |  | 1,389 |  | 1,389 |  |
Loss from Catastrophes |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Estimated carrying value of property damaged floods |  | $ 855,000 |  | $ 855,000 |  |  |
Kern, CA |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Number of contracts to purchase banked water | contract |  |  |  | 3 |  | 3 |
Acre-feet of Water | a |  | 45,000 |  | 45,000 |  | 45,000 |
Finite-lived intangible assets |  |  |  |  |  | $ 2,800,000 |
Water assets, fair value |  | $ 34,000,000 |  | $ 34,000,000 |  |  |
California |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Area of real estate property (in acres) | a |  | 34,844 |  | 34,844 |  |  |
Acre-feet of Water | a |  | 45,016 |  | 45,016 |  |  |
Lease revenue, net |  |  |  | $ 27,100,000 |  |  |
Percent of rental revenue |  |  |  | 64.00% |  |  |
Florida |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Area of real estate property (in acres) | a | 138 | 22,468 |  | 22,468 |  |  |
Sale of unfarmed land | $ 9,600,000 |  |  |  |  |  |
Property disposition of closing costs | 563,000 |  |  |  |  |  |
Net gain on sale | $ 6,400,000 |  |  |  |  |  |
Acre-feet of Water | a |  | 0 |  | 0 |  |  |
Lease revenue, net |  |  |  | $ 7,500,000 |  |  |
Percent of rental revenue |  |  |  | 17.70% |  |  |
Fresno LLC |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
LLC ownership |  |  |  | 50.00% |  |  |
Umatilla LLC |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
LLC ownership |  |  |  | 20.40% |  |  |
Fresno, California And Umatilla, Oregon |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
LLC ownership value |  | $ 5,800,000 |  | $ 5,800,000 |  |  | $ 5,800,000

X
- Definition Amortization of Above Market Lease + References No definition available. + Details
Name: | land_AmortizationOfAboveMarketLease
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Area Of Water + References No definition available. + Details
Name: | land_AreaOfWater
Namespace Prefix: | land_
Data Type: | dtr-types1:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Asset Acquisition, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual + References No definition available. + Details
Name: | land_AssetAcquisitionProFormaInformationEarningsorLossofAcquireesinceAcquisitionDateActual
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Asset Acquisition, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual + References No definition available. + Details
Name: | land_AssetAcquisitionProFormaInformationRevenueofAcquireesinceAcquisitionDateActual
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Income (Loss) From Investments in Unconsolidated Entities + References No definition available. + Details
Name: | land_IncomeLossFromInvestmentsInUnconsolidatedEntities
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of Contracts To Purchase Banked Water + References No definition available. + Details
Name: | land_NumberOfContractsToPurchaseBankedWater
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Impaired Properties + References No definition available. + Details
Name: | land_NumberofImpairedProperties
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of rental revenue. + References No definition available. + Details
Name: | land_PercentageOfRentalRevenue
Namespace Prefix: | land_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Property Disposition Of Closing Costs + References No definition available. + Details
Name: | land_PropertyDispositionOfClosingCosts
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Tenant Improvements, Rental Revenue + References No definition available. + Details
Name: | land_TenantImprovementsRentalRevenue
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Water Assets, Fair Value Disclosure + References No definition available. + Details
Name: | land_WaterAssetsFairValueDisclosure
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of increase (decrease) in acquired leases acquired as part of a real property acquisition at below market lease rate with a finite life. + References No definition available. + Details
Name: | us-gaap_BelowMarketLeasePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
Name: | us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(7)(a)(8)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(7)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(9)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(14)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 3 -SubTopic 360 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479638/944-360-45-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 4 -SubTopic 360 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479638/944-360-45-4 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 360 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479607/944-360-50-1 + Details
Name: | us-gaap_GainsLossesOnSalesOfInvestmentRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-2 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in land held for sale. + References No definition available. + Details
Name: | us-gaap_LandAvailableForSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-5 + Details
Name: | us-gaap_LeaseIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482987/272-10-50-3 + Details
Name: | us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of ownership interest in a limited liability company (LLC), including portions attributable to both the parent and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 272 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483014/272-10-45-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_LimitedLiabilityCompanyLlcMembersEquityIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-9 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-2 + Details
Name: | us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of improvements having a life longer than one year that were made for the benefit of one or more tenants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 + Details
Name: | us-gaap_TenantImprovements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=land_NewRealEstateActivity2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_LossFromCatastrophesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | srt_OwnershipAxis=land_FresnoCaliforniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=land_UmatillaOregonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=land_FresnoCaliforniaAndUmatillaOregonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |