Schedule IV - Mortgage Loans on Real Estate (Detail) (USD $)
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12 Months Ended |
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Dec. 31, 2014
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Mortgage Loans on Real Estate [Line Items] | |
Prior Lien | $ 0us-gaap_MortgageLoansOnRealEstatePriorLiens1 |
Face Amount of Mortgage | 642,500,000us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages |
Carrying Amount of Mortgage | 5,600,000us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages |
Principal Amount of Loans Subject to Delinquent Principal or Interest | 0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans |
Build To Suit Healthcare Facility [Member] | Phoenix,Arizona [Member] | Second Mortgage [Member] | |
Mortgage Loans on Real Estate [Line Items] | |
Final Maturity Date | Jul. 31, 2016 |
Periodic Payment Term | 9.0% interest, paid currently in cash on the loan during construction and through maturity. Exit fee upon maturity of the loan in an amount sufficient to earn a 22% internal rate of return. |
Prior Lien |
0us-gaap_MortgageLoansOnRealEstatePriorLiens1 / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_SecondMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = good_BuildToSuitHealthcareFacilityMember / us-gaap_StatementGeographicalAxis = good_PhoenixArizonaMember |
Face Amount of Mortgage |
5,600,000us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_SecondMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = good_BuildToSuitHealthcareFacilityMember / us-gaap_StatementGeographicalAxis = good_PhoenixArizonaMember |
Carrying Amount of Mortgage |
5,600,000us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_SecondMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = good_BuildToSuitHealthcareFacilityMember / us-gaap_StatementGeographicalAxis = good_PhoenixArizonaMember |
Principal Amount of Loans Subject to Delinquent Principal or Interest |
$ 0us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_SecondMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = good_BuildToSuitHealthcareFacilityMember / us-gaap_StatementGeographicalAxis = good_PhoenixArizonaMember |
Loan bearing interest, terms | 9% Current Interest, 22% internal rate of return on exit |
Interest of loan |
9.00%us-gaap_MortgageLoansOnRealEstateInterestRate / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_SecondMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = good_BuildToSuitHealthcareFacilityMember / us-gaap_StatementGeographicalAxis = good_PhoenixArizonaMember |
Internal rate of return on exit |
22.00%good_MortgageLoanTargetInternalRateOfReturn / us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis = us-gaap_SecondMortgageMember / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = good_BuildToSuitHealthcareFacilityMember / us-gaap_StatementGeographicalAxis = good_PhoenixArizonaMember |
X | ||||||||||
- Definition
Mortgage Loan Target Internal Rate Of Return No definition available.
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X | ||||||||||
- Definition
Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The carrying amount of the outstanding balance due under the mortgage loan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of the contractual principal due at the origination of the mortgage loan (face amount). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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X | ||||||||||
- Definition
Description of the contractual payment terms of the loan receivable including whether principal and interest is payable at a level or varying amount over the life of the loan, the amount of any balloon payment required at maturity, and any prepayment penalties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of prior lien on the real estate that secures the mortgage loan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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