XML 43 R32.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Real Estate and Intangible Assets - Purchase Price Allocations (Detail) - USD ($) $ in Thousands | Sep. 30, 2017 | Sep. 30, 2016
--- | --- | ---
2017 New Real Estate Activity |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | $ 121,847 |
2017 New Real Estate Activity | Irrigation System |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 11,534 |
2017 New Real Estate Activity | Other Improvements |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 824 |
2017 New Real Estate Activity | Horticulture |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 12,611 |
2017 New Real Estate Activity | Leasehold interest – land |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 3,488 |
2017 New Real Estate Activity | In-place leases |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 487 |
2017 New Real Estate Activity | Leasing costs |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 508 |
2017 New Real Estate Activity | Above-(Below)-Market Leases |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | (23) |
2017 New Real Estate Activity | Land and Land Improvements |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | 89,614 |
2017 New Real Estate Activity | Buildings |  |
Business Acquisition [Line Items] |  |
Total Purchase Price | $ 2,804 |
2016 New Real Estate Activity |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | $ 81,558
2016 New Real Estate Activity | Irrigation System |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 4,952
2016 New Real Estate Activity | Other Improvements |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 2,079
2016 New Real Estate Activity | Horticulture |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 11,431
2016 New Real Estate Activity | Leasehold interest – land |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 0
2016 New Real Estate Activity | In-place leases |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 501
2016 New Real Estate Activity | Leasing costs |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 448
2016 New Real Estate Activity | Above-(Below)-Market Leases |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | (582)
2016 New Real Estate Activity | Land and Land Improvements |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | 59,038
2016 New Real Estate Activity | Buildings |  |
Business Acquisition [Line Items] |  |
Total Purchase Price |  | $ 3,691

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

X
- Definition Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=84160947&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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=land_AboveAndBelowMarketLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandAndLandImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
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: |