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Real Estate and Lease Intangibles - Carrying Value of Lease Intangibles and Accumulated Amortization for Each Intangible Asset or Liability Class (Detail) (USD $)
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | |||
| Below-market lease values, gross | $ (371,707)us-gaap_BelowMarketLeaseGross | $ (260,356)us-gaap_BelowMarketLeaseGross | |
| Below-market lease values, accumulated (amortization) accretion | 162,194us-gaap_BelowMarketLeaseAccumulatedAmortization | 114,469us-gaap_BelowMarketLeaseAccumulatedAmortization | 45,852us-gaap_BelowMarketLeaseAccumulatedAmortization |
| Above-Market Lease Values [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Finite-lived intangible assets, gross |
65,203us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_AboveMarketLeasesMember |
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| Finite-lived intangible asset, accumulated (amortization) accretion |
(9,027)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_AboveMarketLeasesMember |
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| Above (Below)-Market Leases [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Finite-lived intangible assets, gross |
(306,504)us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_AboveAndBelowMarketLeasesMember |
(260,356)us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_AboveAndBelowMarketLeasesMember |
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| Finite-lived intangible asset, accumulated (amortization) accretion |
153,167us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_AboveAndBelowMarketLeasesMember |
114,469us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_AboveAndBelowMarketLeasesMember |
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| In-place Leases [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Finite-lived intangible assets, gross |
869,207us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_InPlaceLeasesMember |
397,728us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_InPlaceLeasesMember |
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| Finite-lived intangible asset, accumulated (amortization) accretion |
(263,428)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_InPlaceLeasesMember |
(241,697)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_InPlaceLeasesMember |
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| Leasing Commissions [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Finite-lived intangible assets, gross |
357,210us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_LeasingCommissionsMember |
146,558us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_LeasingCommissionsMember |
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| Finite-lived intangible asset, accumulated (amortization) accretion |
(80,617)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_LeasingCommissionsMember |
(34,727)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_LeasingCommissionsMember |
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| Tenant Relationships [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Finite-lived intangible assets, gross |
501,670us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TenantRelationshipsMember |
93,187us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TenantRelationshipsMember |
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| Finite-lived intangible asset, accumulated (amortization) accretion |
(66,467)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TenantRelationshipsMember |
(49,985)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TenantRelationshipsMember |
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| Total Lease Intangibles [Member] | |||
| Finite-Lived Intangible Assets [Line Items] | |||
| Finite-lived intangible assets, gross |
1,728,087us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TotalLeaseIntangiblesMember |
637,473us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TotalLeaseIntangiblesMember |
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| Finite-lived intangible asset, accumulated (amortization) accretion |
$ (410,512)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TotalLeaseIntangiblesMember |
$ (326,409)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = land_TotalLeaseIntangiblesMember |
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- Definition
Amount of accumulated amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life. No definition available.
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- Definition
Amount before amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life. No definition available.
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- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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