XML 79 R68.htm IDEA: XBRL DOCUMENT
v3.23.2

Mortgage Revenue Bonds - Schedule of MRBs Acquisitions (Parenthetical) (Details) | Jun. 30, 2023 USD ($) Bed Unit | Jun. 30, 2022 USD ($) Unit
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |  |
Committed to funding amount | $ |  | $ 531,877,182 |
MRB and Taxable MRB Commitments [Member] | Village Point [Member] | NJ [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of Units | [1] | 120 |
MRB and Taxable MRB Commitments [Member] | Series J-1 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of Units |  |  | 200
MRB and Taxable MRB Commitments [Member] | Series J-3 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of Units | [2] |  | 200
MRB and Taxable MRB Commitments [Member] | Series J-4 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of Units | [2] |  | 200
MRB and Taxable MRB Commitments [Member] | Series J-5 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of Units | [3] | 200 |
Mortgage Revenue Bonds [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Floor rate |  | 3.87% | 3.87%
Mortgage Revenue Bonds [Member] | Village Point [Member] | NJ [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of beds | Bed |  | 120 |
Mortgage Revenue Bonds [Member] | Seniors Housing Property [Member] | NJ [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Number of Units |  | 92 |
Mortgage Revenue Bonds [Member] | Series J-3 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Commitment to provide maximum funding of taxable MRB | $ |  |  | $ 26.1
Mortgage Revenue Bonds [Member] | Series J-4 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Commitment to provide maximum funding of taxable MRB | $ |  |  | 16.4
Maximum balance of the MRB after stabilization | $ |  |  | $ 1.5
Fixed interest rate |  |  | 8.00%
Mortgage Revenue Bonds [Member] | Series J-5 [Member] | Residency at the Entrepreneur [Member] | CA [Member] |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |
Commitment to provide maximum funding of taxable MRB | $ |  | $ 5,000,000.0 |
[1] | Village Point is a seniors housing property with 120 beds in 92 units.
[2] | The Partnership has committed to provide funding for the Series J-3 and Series J-4 MRBs of $26.1 million and $16.4 million, respectively. See Note 19.
[3] | The Partnership has committed to provide funding for the Series J-5 MRB totaling $5.0 million. See Note 19.

X
- Definition Commitment to provide maximum funding of MRB. + References No definition available. + Details
Name: | ghi_CommitmentToProvideMaximumFundingOfMRB
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loan Financing Basis Spread on Variable Floor Rate. + References No definition available. + Details
Name: | ghi_LoanFinancingBasisSpreadOnVariableFloorRate
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 Maximum balance of MRB after stabilization. + References No definition available. + Details
Name: | ghi_MaximumBalanceOfMRBAfterStabilization
Namespace Prefix: | ghi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of beds in real estate property. + References No definition available. + Details
Name: | ghi_NumberOfBedsInRealEstateProperty
Namespace Prefix: | ghi_
Data Type: | xbrli:integerItemType
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
- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
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_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_NJ
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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