XML 50 R36.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Real Estate and Intangible Assets - Weighted Average Amortization Period for Intangible Assets Acquired and Liabilities Assumed (Detail) | 9 Months Ended
--- | ---
Sep. 30, 2016 USD ($) option | Sep. 30, 2015 USD ($) option
Acquired Finite-Lived Intangible Assets [Line Items] |  |
All intangible assets | 14 years | 6 years 2 months 12 days
In-place Leases [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
All intangible assets | 8 years 8 months 12 days | 4 years 1 month 6 days
Leasing Costs [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
All intangible assets | 10 years 7 months 6 days | 5 years 6 months
Tenant Relationships [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
All intangible assets | 0 years | 9 years 6 months
Below-market lease and deferred revenue [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
All intangible assets | 20 years 10 months 24 days | 0 years
2016 New Real Estate Activity [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquisition Costs | $ | $ 409,784 |
2015 New Real Estate Activity [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquisition Costs | $ |  | $ 518,986
Gunbarrel Road [Member] | 2016 New Real Estate Activity [Member] | Alamosa CO [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 1 |
Lessee Leasing Arrangement Lease Renewal Term | 5 years |
Acquisition Costs | $ | $ 119,085 |
Immokalee Exchange [Member] | 2015 New Real Estate Activity [Member] | Immokalee, FL [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option |  | 2
Lessee Leasing Arrangement Lease Renewal Term |  | 5 years
Acquisition Costs | $ |  | $ 152,571
Holt County [Member] | 2015 New Real Estate Activity [Member] | Stuart, NE [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option |  | 0
Acquisition Costs | $ |  | $ 27,589
Rock County [Member] | 2015 New Real Estate Activity [Member] | Bassett, NE [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option |  | 0
Acquisition Costs | $ |  | $ 27,589
Calaveras Avenue [Member] | 2016 New Real Estate Activity [Member] | Coalinga, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 1 |
Lessee Leasing Arrangement Lease Renewal Term | 5 years |
Acquisition Costs | $ | $ 38,501 |
Orange Avenue [Member] | 2016 New Real Estate Activity [Member] | Fort Pierce, FL [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 2 |
Lessee Leasing Arrangement Lease Renewal Term | 7 years |
Acquisition Costs | $ | $ 37,615 |
Lithia Road [Member] | 2016 New Real Estate Activity [Member] | Plant City, FL [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 0 |
Acquisition Costs | $ | $ 38,296 |
Baca County [Member] | 2016 New Real Estate Activity [Member] | Edler, CO [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 1 |
Lessee Leasing Arrangement Lease Renewal Term | 5 years |
Acquisition Costs | $ | $ 72,340 |
Diego Ranch [Member] | 2016 New Real Estate Activity [Member] | Stanislaus, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquisition Costs | $ | 63,114 |
Nevada Ranch [Member] | 2016 New Real Estate Activity [Member] | Merced, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquisition Costs | $ | $ 40,833 |
Espinosa Road [Member] | 2015 New Real Estate Activity [Member] | Salinas, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option |  | 0
Acquisition Costs | $ |  | $ 89,885
Parrish Road [Member] | 2015 New Real Estate Activity [Member] | Duette, FL [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option |  | 2
Lessee Leasing Arrangement Lease Renewal Term |  | 5 years
Acquisition Costs | $ |  | $ 103,610
Bear Mountain [Member] | 2015 New Real Estate Activity [Member] | Arvin, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option |  | 1
Lessee Leasing Arrangement Lease Renewal Term |  | 10 years
Acquisition Costs | $ |  | $ 117,742
Lease One [Member] | Diego Ranch [Member] | 2016 New Real Estate Activity [Member] | Stanislaus, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 3 |
Lessee Leasing Arrangement Lease Renewal Term | 5 years |
Lease One [Member] | Nevada Ranch [Member] | 2016 New Real Estate Activity [Member] | Merced, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 3 |
Lessee Leasing Arrangement Lease Renewal Term | 5 years |
Lease Two [Member] | Diego Ranch [Member] | 2016 New Real Estate Activity [Member] | Stanislaus, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 1 |
Lessee Leasing Arrangement Lease Renewal Term | 3 years |
Lease Two [Member] | Nevada Ranch [Member] | 2016 New Real Estate Activity [Member] | Merced, CA [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Lessee leasing arrangement lease renewal options | option | 1 |
Lessee Leasing Arrangement Lease Renewal Term | 3 years |

X
- Definition Lessee Leasing Arrangement Lease Renewal Options + References No definition available. + Details
Name: | land_LesseeLeasingArrangementLeaseRenewalOptions
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee leasing arrangement lease renewal term. + References No definition available. + Details
Name: | land_LesseeLeasingArrangementLeaseRenewalTerm
Namespace Prefix: | land_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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_AcquiredFiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LeasesAcquiredInPlaceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=land_LeasingCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=land_BelowmarketleaseanddeferredrevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=land_TwoThousandSixteenNewRealEstateActivityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=land_TwoThousandFifteenNewRealEstateActivityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_GunbarrelRoadMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_AlamosaCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_ImmokaleeExchangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_ImmokaleeFlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_HoltCountyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_StuartNeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_RockCountyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_BassettNeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_CalaverasAvenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_CoalingaCAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_OrangeAvenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_FortPierceFLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_LithiaRoadMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_PlantCityFlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_BacaCountyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_EdlerCOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_DiegoRanchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_StanislausCAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_NevadaRanchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_MercedCAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_EspinosaRoadMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_SalinasCaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_ParrishRoadMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_DuetteFlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RealEstatePropertiesAxis=land_BearMountainMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=land_ArvinCaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=land_LeaseOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=land_LeaseTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |