XML 24 R44.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Subsequent Events - Additional Information (Detail) |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 21, 2015 USD ($) | Jul. 01, 2015 USD ($) a Farm | Jun. 30, 2015 USD ($) | Jun. 30, 2015 Farm | Dec. 31, 2014 USD ($) Farm
Subsequent Event [Line Items] |  |  |  |  |
Number of Farms | Farm |  |  |  | 4 | 11
Insurance proceeds |  |  |  |  | $ 495,700
Property And Casualty Recovery [Member] | West Gonzales [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Insurance proceeds |  |  | $ 20,809 |  |
Subsequent Event [Member] | Property And Casualty Recovery [Member] | West Gonzales [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Insurance proceeds | $ 76,423 |  |  |  |
Subsequent Event [Member] | Nebraska [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Total acre | a |  | 1,280 |  |  |
Number of Farms | Farm |  | 2 |  |  |
Total purchase price |  | $ 11,000,000 |  |  |

X
- Definition Area of real estate property acquired. + References No definition available. + Details
Name: | land_AreaOfRealEstatePropertyAcquired
Namespace Prefix: | land_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of farms acquired. + References No definition available. + Details
Name: | land_NumberOfFarmsAcquired
Namespace Prefix: | land_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The gross income statement effect of insurance proceeds for each material event or transaction (that would not reasonably be expected to recur in the foreseeable future) that possesses a high degree of abnormality and are clearly unrelated to, or incidentally related to, the ordinary and typical activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6365513&loc=d3e15138-107781 + Details
Name: | us-gaap_UnusualOrInfrequentItemInsuranceProceeds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=land_PropertyAndCasualtyRecoveryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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