XML 16 R54.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt (Schedule of Long-term Debt - Notes Payable) (Details) (USD $)
12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jul. 31, 2014
Dec. 13, 2013
Dec. 17, 2013
Apr. 16, 2014
Apr. 15, 2013
Debt Instrument [Line Items]                
Notes payable $ 12,151,000us-gaap_NotesPayable $ 26,595,000us-gaap_NotesPayable            
Repayments of Notes Payable 22,434,000us-gaap_RepaymentsOfNotesPayable 16,309,000us-gaap_RepaymentsOfNotesPayable 5,152,000us-gaap_RepaymentsOfNotesPayable          
Notes Payable | Briar Ridge Investments, LTD                
Debt Instrument [Line Items]                
Notes payable 9,000,000us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
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/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
9,000,000us-gaap_NotesPayable
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= grbk_BriarRidgeInvestmentsLTDMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
           
Notes Payable | Plains Capital Bank                
Debt Instrument [Line Items]                
Notes payable 0us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
= grbk_PlainsCapitalBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
7,500,000us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
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/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
           
Notes Payable | Bossy Boots Holding, LTD                
Debt Instrument [Line Items]                
Notes payable 0us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
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= us-gaap_NotesPayableOtherPayablesMember
5,655,000us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
= grbk_BossyBootsHoldingLTDMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
           
Notes Payable | Lakeside DFW Land, LTD                
Debt Instrument [Line Items]                
Notes payable 1,824,000us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
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2,980,000us-gaap_NotesPayable
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/ us-gaap_LongtermDebtTypeAxis
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Notes Payable | Other Unrelated Third Party                
Debt Instrument [Line Items]                
Notes payable 0us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
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/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
39,000us-gaap_NotesPayable
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/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
           
Notes Payable | Subordinated Lot Notes                
Debt Instrument [Line Items]                
Notes payable 1,327,000us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
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/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
1,421,000us-gaap_NotesPayable
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/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
           
Subsidiary of JBGL | Notes Payable | Briar Ridge Investments, LTD                
Debt Instrument [Line Items]                
Stated interest rate         6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= grbk_BriarRidgeInvestmentsLTDMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiaryIssuerMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
     
Interest Payable 0us-gaap_InterestPayableCurrentAndNoncurrent
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/ dei_LegalEntityAxis
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/ us-gaap_LongtermDebtTypeAxis
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Debt instrument, face amount         9,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
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Subsidiary of JBGL | Notes Payable | Plains Capital Bank                
Debt Instrument [Line Items]                
Stated interest rate           5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
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/ dei_LegalEntityAxis
= us-gaap_SubsidiaryIssuerMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
   
Debt instrument, face amount           7,500,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
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/ dei_LegalEntityAxis
= us-gaap_SubsidiaryIssuerMember
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= us-gaap_NotesPayableOtherPayablesMember
   
Subsidiary of JBGL | Notes Payable | Bossy Boots Holding, LTD                
Debt Instrument [Line Items]                
Stated interest rate     6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
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= us-gaap_SubsidiaryIssuerMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
         
Debt instrument, face amount     17,100,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
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= us-gaap_NotesPayableOtherPayablesMember
         
Subsidiary of JBGL | Notes Payable | Lakeside DFW Land, LTD                
Debt Instrument [Line Items]                
Stated interest rate             5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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Debt instrument, face amount             3,300,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
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3,500,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
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/ dei_LegalEntityAxis
= us-gaap_SubsidiaryIssuerMember
/ us-gaap_LongtermDebtTypeAxis
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Repayments of Notes Payable       $ 1,500,000us-gaap_RepaymentsOfNotesPayable
/ us-gaap_DebtInstrumentAxis
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Subsidiaries of the Company | Minimum | Notes Payable | Subordinated Lot Notes                
Debt Instrument [Line Items]                
Stated interest rate 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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/ us-gaap_RangeAxis
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Subsidiaries of the Company | Maximum | Notes Payable | Subordinated Lot Notes                
Debt Instrument [Line Items]                
Stated interest rate 14.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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