XML 55 R41.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Borrowings - Additional Information (Detail) - USD ($) |  |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 13, 2016 | Oct. 05, 2016 | Jul. 01, 2016 | Mar. 03, 2016 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015 | Aug. 22, 2016 | Apr. 04, 2016 | Sep. 03, 2015 | Dec. 05, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Weighted Average Interest Rate |  |  |  |  | 3.29% | 3.41% | 3.08% | 3.51% |  |  |  |  |
Note payable, outstanding |  |  |  |  | $ 190,379,624 |  | $ 190,379,624 |  | $ 141,678,935 |  |  |  |
Long-term Debt, Gross |  |  |  |  | 191,480,127 |  | 191,480,127 |  | 142,733,157 |  |  |  |
Borrowings under line of credit |  |  |  |  | $ 22,500,000 |  | $ 22,500,000 |  | $ 100,000 |  |  |  |
Two Thousand Sixteen MetLife Term Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Loans to value ratios percentage |  |  |  |  |  |  | 58.00% |  |  |  |  |  |
Two Thousand Fifteen MetLife Term Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate |  |  |  |  | 3.35% |  | 3.35% |  |  |  |  |  |
Farmer Mac Bonds Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  | $ 125,000,000 |  | $ 125,000,000 |  |  | $ 1,020,000 |  |  | $ 75,000,000
Debt instrument, fixed interest rate |  |  |  |  | 2.94% |  | 2.94% |  | 2.87% | 2.87% |  |  |
Undrawn Commitment |  |  |  |  | $ 74,743,000 |  | $ 74,743,000 |  | $ 41,294,000 |  |  |  |
Remaining borrowing capacity |  |  |  |  | 0 |  | 0 |  |  |  |  |  |
Long-term Debt, Gross |  |  |  |  | 49,777,500 |  | $ 49,777,500 |  | $ 33,706,000 |  |  |  |
Farmer Mac Bonds Payable [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Date |  |  |  |  |  |  | Dec. 22, 2016 |  |  |  |  |  |
MetLife Mortgage Notes Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  | $ 100,000,000 |  | $ 100,000,000 |  |  |  |  |  |
Maturity Date |  |  |  |  |  |  | Jan. 05, 2029 |  |  |  |  |  |
Debt instrument, fixed interest rate |  |  |  |  | 3.35% |  | 3.35% |  | 3.35% |  |  |  |
Undrawn Commitment |  |  |  |  | $ 12,529,806 |  | $ 12,529,806 |  | $ 12,529,806 |  |  |  |
Remaining borrowing capacity |  |  |  |  | 600,000 |  | 600,000 |  |  |  |  |  |
Long-term Debt, Gross |  |  |  |  | 85,939,466 |  | 85,939,466 |  | $ 87,470,194 |  |  |  |
MetLife Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  | $ 25,000,000 |  | $ 25,000,000 |  |  |  |  |  |
Maturity Date |  |  |  |  |  |  | Apr. 05, 2024 |  |  |  |  |  |
Debt instrument, fixed interest rate |  |  |  |  | 2.90% |  | 2.90% |  | 2.58% |  |  |  |
Undrawn Commitment |  |  |  |  | $ 2,500,000 |  | $ 2,500,000 |  | $ 24,900,000 |  |  |  |
Long-term Debt, Gross |  |  |  |  | 22,500,000 |  | 22,500,000 |  | $ 100,000 |  |  |  |
Farm Credit CFL Mortgage Notes Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  |  | $ 34,587,880 |  | $ 34,587,880 |  |  |  |  |  |
Reduced stated interest rate |  |  |  |  |  |  |  |  | 16.10% |  |  |  |
Debt instrument, fixed interest rate |  |  |  |  | 3.50% |  | 3.50% |  | 3.42% |  |  |  |
Undrawn Commitment |  |  |  |  | $ 0 |  | $ 0 |  | $ 0 |  |  |  |
Long-term Debt, Gross |  |  |  |  | 33,263,161 |  | $ 33,263,161 |  | $ 21,456,963 |  |  |  |
Farm Credit CFL Mortgage Notes Payable [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Date |  |  |  |  |  |  | Oct. 01, 2016 |  |  |  |  |  |
Farm Credit West Note Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Weighted Average Interest Rate |  |  |  |  |  |  | 3.54% |  |  |  |  |  |
Amount |  |  |  |  |  |  |  |  |  |  | $ 9,282,000 |  |
Debt instrument, fixed interest rate |  |  |  |  |  |  |  |  |  |  | 3.54% |  |
Total borrowings from credit notes payable |  |  |  |  | $ 9,300,000 |  | $ 9,300,000 |  |  |  |  |  |
Debt term |  |  |  |  |  |  | 24 years 6 months |  |  |  |  |  |
MetLife Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Period for interest rate adjustment |  |  |  |  |  |  | 5 years |  |  |  |  |  |
Expiration date of commitment |  |  |  |  |  |  | Dec. 31, 2017 |  |  |  |  |  |
Minimum annualized rate |  |  |  |  |  |  | 2.50% |  |  |  |  |  |
Debt Instrument Commitment Fee Percentage |  |  |  |  | 0.20% |  | 0.20% |  |  |  |  | 0.20% |
Farm Credit Central Florida Notes Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Weighted Average Interest Rate |  |  |  |  |  |  | 3.49% |  |  |  |  |  |
Amount |  |  | $ 3,120,000 |  |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate |  |  | 3.78% |  |  |  |  |  |  |  |  |  |
Total borrowings from credit notes payable |  |  |  |  | $ 24,000,000 |  | $ 24,000,000 |  |  |  |  |  |
Debt term |  |  | 36 years |  |  |  |  |  |  |  |  |  |
Mortgage Note Payable [Member] | Long-Term Mortgage Notes and Bonds Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate fair value of mortgage notes payable outstanding |  |  |  |  | 170,100,000 |  | 170,100,000 |  |  |  |  |  |
Mortgage notes payable, carrying value |  |  |  |  | 167,000,000 |  | 167,000,000 |  |  |  |  |  |
Mortgage Note Payable [Member] | Short-Term Mortgage Notes and Bonds Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable, carrying value |  |  |  |  | 1,900,000 |  | 1,900,000 |  |  |  |  |  |
Borrowings under line of credit |  |  |  |  | $ 22,500,000 |  | $ 22,500,000 |  |  |  |  |  |
3.08% Fixed Interest Rate Bond [Member] | Farmer Mac Bonds Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  | $ 11,100,000 |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate |  |  |  | 3.08% |  |  |  |  |  |  |  |  |
2.98% Fixed Interest Rate Bond [Member] | Farmer Mac Bonds Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Amount |  |  |  | $ 4,431,000 |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate |  |  |  | 2.98% |  |  |  |  |  |  |  |  |
Debt term |  |  |  | 9 years 8 months 12 days |  |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | MetLife Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage added to LIBOR |  |  |  |  |  |  | 2.25% |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, fee amount |  | $ 225,000 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Two Thousand Sixteen MetLife Term Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Note payable, outstanding |  | $ 21,600,000.0 |  |  |  |  |  |  |  |  |  |  |
Loans to value ratios percentage |  | 60.00% |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage |  | 0.20% |  |  |  |  |  |  |  |  |  |  |
Line of credit, carrying value |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Two Thousand Sixteen MetLife Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, carrying value |  | $ 25,000,000 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Two Thousand Fifteen MetLife Term Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate |  | 3.16% |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | MetLife Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  | $ 21,000,000 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Farm Credit CFL Mortgage Notes Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Date | Nov. 01, 2041 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate | 3.94% |  |  |  |  |  |  |  |  |  |  |  |
Repayment of loans | $ 3,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | London Interbank Offered Rate (LIBOR) [Member] | Two Thousand Sixteen MetLife Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage added to LIBOR |  | 2.25% |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage |  | 0.20% |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | London Interbank Offered Rate (LIBOR) [Member] | Two Thousand Sixteen MetLife Line of Credit [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, fixed interest rate |  | 2.50% |  |  |  |  |  |  |  |  |  |  |

X
- Definition Debt instrument commitment fee percentage. + References No definition available. + Details
Name: | land_DebtInstrumentCommitmentFeePercentage
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Loans To Value Ratios Percentage + References No definition available. + Details
Name: | land_DebtInstrumentLoansToValueRatiosPercentage
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt instrument minimum annualized rate. + References No definition available. + Details
Name: | land_DebtInstrumentMinimumAnnualizedRate
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt instrument weighted average interest rate. + References No definition available. + Details
Name: | land_DebtInstrumentWeightedAverageInterestRate
Namespace Prefix: | land_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of adjustment of interest rate. + References No definition available. + Details
Name: | land_PeriodOfAdjustmentOfInterestRate
Namespace Prefix: | land_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Repayment Of Loans + References No definition available. + Details
Name: | land_RepaymentOfLoans
Namespace Prefix: | land_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of the fee that accompanies borrowing money under the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentFeeAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Incremental percentage increase (decrease) in the stated rate on a debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentInterestRateIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
Name: | us-gaap_LongTermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
Name: | us-gaap_NotesAndLoansPayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
Name: | us-gaap_SecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_TwoThousandSixteenMetLifeTermNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_TwoThousandFifteenMetLifeTermNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_FarmerMacBondsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_MetLifeMortgageNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_MetLifeLineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_FarmCreditMortgageNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_FarmCreditWestNotePayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_MetlifeFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_FarmCreditCentralFloridaNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_LongTermMortgageNotesAndBondsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=land_ShortTermMortgageNotesAndBondsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=land_InterestRateTermOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=land_InterestRateTermTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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_DebtInstrumentAxis=land_TwoThousandSixteenMetLifeLineofCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |