XML 127 R116.htm IDEA: XBRL DOCUMENT
v3.23.2

Commitments and Contingencies - Summary of Partnership's Total and Remaining Commitments (Parenthetical) (Details) - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2023 | Jul. 31, 2023 | Apr. 30, 2022
Commitments And Other Guarantees [Line Items] |  |  |  |
Total Initial Commitment |  | $ 531,877,182 |  |
Joint Venture Investments [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Total Initial Commitment |  | $ 68,734,054 |  |
The Residency at the Entrepreneur [Member] | Series J-4 [Member] | Mortgage Revenue Bonds [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Fixed interest rate |  |  |  | 8.00%
The Residency at Empire [Member] | Series BB-4 [Member] | Mortgage Revenue Bonds [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Fixed interest rate |  | 10.00% |  |
The Residency at Empire [Member] | Series BB Three Mortgage [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Maturity Date |  | 2029-12 |  |
Interest Rate |  | 6.00% |  |
Vantage at Loveland [Member] | Joint Venture Investments [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Total Initial Commitment | [1] | $ 18,215,000 |  |
Subsequent Event [Member] | Vantage at Loveland [Member] | Joint Venture Investments [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Total Initial Commitment |  |  | $ 16,300,000 |
Increase in partnerships commitment amount |  |  | $ 1,900,000 |
Minimum [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Extended maturity period |  | 6 months |  |
Minimum [Member] | Floor Rate [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Variable Interest Rate |  | 0.00% |  |
Maximum [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Extended maturity period |  | 12 months |  |
Maximum [Member] | SOFR [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Interest Rate |  | 3.25% |  |
Interest rate period |  | 10 years |  |
Maximum [Member] | Floor Rate [Member] |  |  |  |
Commitments And Other Guarantees [Line Items] |  |  |  |
Variable Interest Rate |  | 0.85% |  |
[1] | In July 2023, the Partnership's initial commitment of $16.3 million was increased by $1.9 million upon meeting certain conditions as outlined in the original agreement.

X
- Definition Commitment interest rate period. + References No definition available. + Details
Name: | ghi_CommitmentInterestRatePeriod
Namespace Prefix: | ghi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Commitment maturity date. + References No definition available. + Details
Name: | ghi_CommitmentMaturityDate
Namespace Prefix: | ghi_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Commitments and other guarantees. + References No definition available. + Details
Name: | ghi_CommitmentsAndOtherGuaranteesLineItems
Namespace Prefix: | ghi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Extended maturity period. + References No definition available. + Details
Name: | ghi_ExtendedMaturityPeriod
Namespace Prefix: | ghi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase in partnerships commitment amount. + References No definition available. + Details
Name: | ghi_IncreaseInPartnershipsCommitmentAmount
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Investment commitments interest rate percentage + References No definition available. + Details
Name: | ghi_InvestmentCommitmentsInterestRatePercentage
Namespace Prefix: | ghi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loan financing basis spread on variable rate. + References No definition available. + Details
Name: | ghi_LoanFinancingBasisSpreadOnVariableRate
Namespace Prefix: | ghi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loan Financing Fixed Interest Rate. + References No definition available. + Details
Name: | ghi_LoanFinancingFixedInterestRate
Namespace Prefix: | ghi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Partnership's commitments amount + References No definition available. + Details
Name: | ghi_PartnershipsCommitmentsAmount
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ghi_JointVentureInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_TheResidencyAtEntrepreneurMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ghi_SeriesJFourMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=ghi_MortgageRevenueBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_TheResidencyAtEmpireMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ghi_SeriesBbFourMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ghi_SeriesBbThreeMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=ghi_VantageAtLovelandMember
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: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateFloorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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